Transcript
I~
THE DIGITAL GROUP
S TOR AGE
CSSB-O-Rft'
S Y S T E M
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po box 6528 denver, colorado 80206 (303) 777-7133
TABLE OF CONTENTS Page I.
II.
III.
IV.
V.
VI.
VII.
VIII.
CSSB-l
INTRODUCTION . . Specifications .
4
SOFTWARE INTERFACE . Commands . . . . . . Status . . . Input Data . . Output Data Mechanical Considerations
5 5 6 6 6 6
HARDWARE INTERFACE . . Computer Interface Deck Interface . . .
8 8 8
4
1] 11 11 11
THEORY OF OPERATION Head Electronics . Bit Synchronizing Electronics Group Coded Recording Recording Format . . Data Flow . . . . Control Sequencer Data Status Logic . . . . Clocks and System Timing . . • . . Motor Drive and Sense Electronics Motor Control Electronics
15 15 16 17 17 19 19
CONSTRUCTION . . . . . Using the Controll~r in a Digital Group System.
22 24
CALIBRATION Oscillator Calibration . . . . . Motor Speed Calibration Read Amplifier Gain Calibration
24 24 24
.
26
DEBUG Motor Control Electronics . . . . . . . . Head Sense and Bit Synchronizing Electronics . Read/Write Electronics .
26 26 26 27
APPENDIX . . . Parts List . PROM Pattern . Connector Pinout . . . . . . Component Placement Schematic • . . . . . Transistor Orientation . Driver Software Description Recording Format • . . . . Flowcharts . . . . . . . . Program Tapes and Listings . Phi-Deck Maintenance . . • .
28 29
31 32 33 34 35 36 40 41 43 96
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LIST OF FIGURES Figure
Page
Dedicated I/O Ports . . • . . . . . . . . . . • Multiplexed I/O Ports with Dedicated Strobes Bus Oriented Ports . . . . . . . . . . . . . . Head Electronics Waveforms During a Write Operation . Head Electronics Waveforms During a Read Operation Bit Synchronizer Timing . . . . . Recording Methods . . . . . . • .. ... . 4.6 Recording Format . . • • . 4.8 4-Phase Clocks . . . . 4.9 System Clock Signals 4.10 Motor Control State Diagram • 5.1 Phi-Deck Wiring . . . . 7.1 Single-Step Clock . . . 7.2 Digital to Audio Sensor . 3.1 3.2 3.3 4.1 4.2 4.3 4.4
9 9
10 12
12 .
13 14
15 17
18 20
21 27 27
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List of Tables Page
Table 2.1 2.2 4.5 4.7 6.1
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Status and Command Ports . . . Deck Selection . . . . 4-to-5 Bit Translation Table . . Valid Sequencer States . . . . Wiring Chart . • . . . .
7
14 16 25
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po box 6528 denver, colorado 80206 (303) 777-7133
I.
INTRODUCTION
The Digital Group Cassette Storage System is a total magnetic tape data storage and retrieval system capable of controlling up to four Phi-Deck cassette transports and accessing any of over one million 8-bit bytes within 20 seconds, using standard C-30 Phillips cassettes. The system is ideal for general purpose data and program storage, file copying, editing, and sorting operations. Each deck is fully controlled to prevent tape breakage. Electronic braking precisely controls tapes for fast forward and rewind-operations. A 4- to 5-bit translation scheme called Group Coded Recording, allows higher packing densities with a soft error rate of less than one'bit in 10 8 . This system operates at 1600 flux changes per inch, yielding a data transfer rate of 800 bytes per second at a tape speed of five inches per second. SPECIFICATIONS Recording Density:
1600 FCPI (Flux Changes Per Inch)
Data Density:
1280 BPI (Bits Per Inch) using 4- to 5-bit Group Coded Recording
Data Rate:
800 Bytes per second (6400 Baud)
Data Capacity:
~~o,OOO ~4U,OOO
bytes on each side of a C-30 audio cassette bytes on each side of 300 foot data cassette
Tape Speed:
5 IPS Read/Write 100 IPS Fast Forward/Reverse
Speed Tolerance:
±20% (i.e., the system will read a tape that was recorded 20% from the nominaL speed w~thout adjust~ent. It will !ead tapes outside this range by adjusting the data rate control.)
Error Rate:
Soft - less than 1 bit in 10 8 Hard - virtually zero when using the software package supplied with the system and a good quality audio tape
Power:
+5V DC ±5% 1:0 Amps nominal 1 drive 2.0 Amps maximum 4" drives 4.0 Amps peak for .1 second during drive enable +i2V DC unregulated (limits: IlV-20V) 0.4 Amp average with tape moving 0.7 Amp peak during motor start
CSSB-4
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II.
SOFTWARE INTERFACE
Since the absolute method of controlling the cassette system will differ for each installation, only a basic interface will be described. The user can then modify the basic interface to meet his own requirements. COMMANDS The command port (see Table 2.1) interprets the various commands into tape motion and activates the read/write electronics. The two select bits, SELl and SEL2, select the active deck, according to Table 2.2. The selected deck can only be changed when all decks are stopped (status bit NOT BUSY is on). Otherwise, even though a command may specify a different deck, the original deck will be used. ENABLE/DISABLE (Enable=l, Disable=~) controls the deck capstan motors so that they may be tu~ned off under software control. The capstan motors should be enabled during and at least one second prior to any other commands. STOP/RUN (Stop=l, Run=0) controls tape motion. The STOP command also takes up slack in the tape. FWD/REV (Fwd=l, Rev=~) controls tape direction, and SLOW/FAST (Slow=l, Fast=~) controls tape speed. Note that since "slow reverse" cannot be performed, a "slow forward" is automatically substituted. RCD/READ (Record=l, Read=0) controls the Read/ Write electronics, and ERASE (=1) will erase the tape when RCD is selected. All commands other than the RECORD or ERASE commands should have RCD/READ=~ to prevent recording spurious glitches'on the tape.
Table 2.1 Status and Command Ports COMMAND PORT Bit ~
1 2 3 4
5 6 7
STATUS PORT
Definition (1 active)
Definition (1 active)
Bit ~
SEL 1 SEL 2 l=ERASE l=RECORD l=STOP l=FORWARD l=SLOW l=ENABLE
OVERRUN/UNDERRUN READY (data ready or ready for data) STOP (possible jam or end of tape) NOT BUSY (user may change decks)
1 ~=READ
2
0= RUN 0=REVERSE
3
~=FAST ~=DISABLE
Table 2.2 Deck Selection SEL 2
SEL 1
DECK
~ ~
~
~
1 ~ 1
1
1 1
2 3
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STATUS The status port (see Table 2.1) provides information on the state of the controller. Four status bits are brought out, ~eaving four input bits for other uses. Two of the bits, STOP and NOT BUSY, supply information on the deck status. STOP is an immediate response to a stop command or ~ jam. NOT BUSY occurs about a second after STOP turns on, signifying the deck is totally stopped. STOP is used by the software in all cases, except to switch the selected deck, which can only occur in a not busy state. The other two bits are status bits for the read/write electronics. READY indicates that the deck can accept another data byte (in Record) or that a new data byte is in the DATA-OUT port (in Read). READY is reset about one millisecond after it is set. It is also reset by a command, data in, or data out strobe. OVERRUN/UNDERRUN indicates that the computer has not serviced a READY by supplying or looking at the new character within the required time. It will remain set until a new command is issued. It is to be treated in most cases as an error condition. INPUT DATA (FOR RECORD) The data input port requests the data bytes which are to be recorded on the tape. The first byte should be loaded either prior to issuing the record command or within about five milliseconds after issuing the record command. Each subsequent byte of data to be recorded should be loaded when tht READY status goes high. Loading the new byte will automatically reset the READY line. The byte should be loaded within .5 milliseconds after the READY signal. Otherwise, OVERRUN/UNDERRUN will come on, and the record electronics will go into erase mode. This may be allowed to happen at the end of a data block in order to record an inter-record gap. If a 'new command is to be given immediately after the last recorded byte, the OVERRUN/UNDERRUN bit must come on before the command is given. If the command is issued earlier, part of the last byte will not be recorded. OUTPUT DATA (FOR READ) The data output port is loaded by the read/write electronics with the data being read from the tape; After issuing a read command, the electronics will look for a sync pattern and then load the, output port with the first data byte. At this time, READY will go high. When the byte is read, the READY signal will be reset. The byte should be read within .5 milliseconds after the READY signal. Otherwise, OVERRUN/UNDERRUN will come on, and the read electronics will be halted until another read command is issued. MECHANICAL CONSIDERATIONS Since the various tape and head movements require certain amounts of time to stabilize, consideration must be given by the software to insure error free read and record operations.
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~_C_SS_B_-6_________________________________ ~---o-~-~-o-~-o--~--o--o-------) pO
box 6528 denver. colorado 802061303l777-7133
1.
Never issue a record command (or turn on the record bit) when the tape is in any state other than 'slow forward, and the tape is stabilized against the head. The tape may take as much as one second to align itself with the tape guides on the head and an unaligned tape may record errors. A good practice to insure reliable recording is to read the previous block without error. This implies the tape is tracking correctly for the record operation.
2.
When issuing a read command which causes the head to corne up against the tape, noise and random patterns as the tape becomes aligned may cause false synchronizing and give erroneous read data. Therefore, it is a good practice in this situation to wait about a second, and then reissue the read command, using only the data from this second read command.
3.
When recording the first block of data at the start of a tape, issue an erase command, and then time out about five to seven seconds to allow the tape leader to pass before recording data.
4.
To allow the recoraing of two consecutive blocks at different points in time, always go into erase mode after recording the first block for a time longer than the space between blocks. (This is easily done by ignoring the READY after the last byte has been recorded, and timing out for the erase time. The electronics will immediately begin erasing without glitching) When the next block is to be recorded, it is begun somewhere within the erased section, thus preventing any glitching and subsequent false synchronizing on read operations.
The following bit patterns are recommended for issuing the various commands:
eNA~~&
COMMAND J~,zi-f-
20-
30/3~-
lS~l#+- )
t,'_
STOP FA$T FORwARD FAST REVERSE READ RECORD ERASE STANDBY
Bit:
Sw~
f~vJ
~~
~~
~'fvfrS
. I~'
7
6
5
4
3
2
1 1 1 1 1 1
1 0 0 1 1 1 1
1 1 0 1 1 1 1
1 0 0 0 0 0
0 0 0 0
0 0 0 0 0
0
1
~
1 1 0
1
1
~
Selected Deck (Note: Selected deck may only be changed when status bit NOT BUSY is on. )
0
~_C_SS_B-_7______________________________ ~(~ __o_@_O~~~~ __O~®~~_O~~_______) po box 6528 denver, colorado 80206 (303) n7-7133
III.
HARDWARE INTERFACE
Computer Interface The basic interface of the cassette controller to the computer occurs through four controller I/O ports. These ports may be connected in various schemes to fully utilize the hardware arrangement of the computer. The computer's output ports port. The computer's input status port. Each port has strobe information into the output in order to read the
connect to the command port and the data-in ports interface to the data-out port and the its own strobe line which is used either to internal latch or to activate the tri-state port.
All outputs from the controller will support ten TTL loads, and all data or control inputs are one TTL load, The command strobe is two TTL loads, the data-in strobe is three TTL loads, the status strobe is four TTL loads, and the data-out strobe is five TTL loads. The data-out and status ports are tri-state, activated by their respective strobes. All strobe signals are active low, and should remain high when not in use. The command data-in and data-out strobes should be low for a period greater than 500nsec, but less than one millisecond. A strobe greater than one millisecond is likely to cause false status indication from the read/write electronics. Some typical connections are shown below. Figure 3.1 depicts a setup where all input and output ports are provided by the computer. Unless all strobes are obtainable from the computer, a third output port will have to be dedicated for software controlled strobe pulses. The scheme in Figure 3.2 uses this strobe port, but takes advantage of a bus system, since the stropes are no longer tied to specific ports but are under software control. Figure 3.3 uses a bus system found on more complex systems. Here, 'inputs and outputs are shared on the same line and controlled totally by the strobe signals. Care should be taken when using this method not to load the bus beyond its capacity. Deck Interface The cassette controller must also be interfaced to the decks. Refer to Figure 5.1 for the wiring of the decks. The board has four separate connections for each of four decks on all pins except ALLCAP, CAPSUPPLY, ALLENGSW, and ALLENGSWGND. The connectors supplied with the deck cables (when decks are included with the controller) will plug into connections for decks ¢ and 1. When de~ks 2 and/or 3 are used, the above signals must be wired into the connector for deck ¢ or 1. Also, HDGND is a common head ground, and all cable shields must be terminated at these two pins.
CSSB-8 po box 6528 denver, colorado 80206 (303) n7-7133
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Controller
ST
Computer
c ontroller
Strobe 1J
S'l~
Out )J
Command ST
Strobe 1
computer
Command
Out A
ST
Out 1
Data-in
Data-in
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In Strobe
ST
In 0
Data-out
ST
ST Data-out
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1
B
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In A
pw--
ST
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Figure 3.1
Dedicated I/O Ports
Figure 3.2
nultiplexed I/O Ports with Dedicated Strobes (Used with Digital Group Systems)
Compu t er
Controller
J
ST
Bus
Command
, ST
Strobes
~
Data-in ST Data-out
ST Status Figure 3.3
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po box 6528 denver, colorado 80206 (303) n7-7133
IV.
THEORY OF OPERATION
Ii:t;AD ELECTRONICS The head electronics consists of IC27 and IC28 which drive the head during record and IC13 which amplifies the head signal during read. IC27 and IC28 (75l25's) have tri-state outputs which normally are in the high impedence state during a read operation so that they won't influence the low level signal going from the head to the amplifier (IC13). During record, only the sections of IC27 and IC28 associated with the selected drive go into a low impedence state and drive the head in a push-pull manner. R6, R9, R20, and R23 are used to limit the current through the head and should be adjusted for a current of 1.5 times the head saturation current if the standard head is not used. Figure 4.1 shows typical waveforms for the record drivers. During a read operation, section 1 of IC 13 is used as a pre-amp with balanced inputs and a gain of 3.9. Section 2 is an amplifier with a gain of 22. Section 3 is a low-pass filter and differentiator which produces zero crossings at its output whenever the input signal has a peak. The low-pass filter reduces the differentiator's sensitivity to noise. Section 4 is a Schmitt trigger which detects the zero crossings and produces a TTL compatible signal at its output. Figure 4.2 shows typical waveforms for the read electronics. BIT SYNCHRONIZING ELECTRONICS This section of the controller is used to generate the proper fixed frequency clocks for record and variable frequency clocks synchronized to the data during read. The data is also converted from NRZI encoding to level encoding. This section of the electronics consists of IC9, IC37, IC50, IC4l, IC42, IC55, IClO, ICll, T13, and associated logic and components. IC9 'oscillates at 14 times the bit rate (it takes ten of these bits for every eight bit data byte that is recorded) and is adjusted using R28. During read, IC37 and its associated reset circuitry divides the OSC signal by 8 if the data is coming in slow, by 7 if the data is coming in on frequency, and by 6 if the data is coming in fast. The incoming data rate is checked every time there is a data bit of value "1". There is no correction for data bits of value "~". This compensates for small rapid variations in tape speed. Large speed variations generate a DC error voltage with IClO and ICII which is fed back to the control input of oscillator IC9. During record, IC37 divides OCS by 7 and T13 turns off the DC feedback loop. GROUP CODED RECORDING Since a flux density of 1,600 flux changes per inch was incorporated, a special effort was made to also increase bit density in a packing scheme which maintains self-synchronization. Figure 4.4 illustrates this convention, group-coded recording, in a comparison with some older methods.
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Typical Encoded Data
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Ie13 Pin 8 Pre-Amp 600mv P-P ±50%
Ie13 Pin 1 Differentia_t_o~r~____
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DATA
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_ _ _ _ _ _-'1
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DCLK t'J=:; RA tvDA TA y=:;tv,
t
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Z=RAWDATA Note 1: Note 2:
This pulse is always 3 OSC cycles if DATA is ~ or RECORDING. This pulse is either 2 or 4 OSC cycles if incoming data is fast or slow respectively and DATA is 1.
Figure 4.3
Bit Synchronizer Timing
~ I
NRZI, non-return-to-zero, illustrates a recording efficiency of 1.0, where recording efficiency is defined as the highest ratio of BPI (bits per inch) to FCPI for a given format. There is,; at most, only one flux cnange per bit. Unfortunately, this is not a self-clocking scheme, and is therefore impractical for use on a cassette system which has inherent speed fluctuations. PE, phase encoding, was designed to overcome such limitations by providing a flux change at the center of each bit period which would synchronize a clocking circuit. The direction of this flux change indicates whether the bit is a 1 or~. The ~ecording efficiency of this method, however, is only ~.5.
Bit Stream
-+
NRZI
PE GCR Figure 4.4
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GCR, group-coded recording, at first glance appears very similar to the efficient NRZI method, but with one important difference: No more than two zeros may appear in a row in the bit stream. This guarantees a clock pulse at least once every three bits which provides synchronization. Since a restriction of no more than two zeros in a row cannot be placed on data, a translation scheme is used to encode.4-bit groups into 5-bit groups, and the above restriction is then placed on the 5-bit groups. The translation table is shown in Table 4.5. Since the format is essentially NRZI, we have 4 bits per 5 flux changes, or a recording efficiency of 0.8, which is 60% better than PEe
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RECORDING FORMAT A synchronous format is automatically added by the electronics to the data being recorded. Of all the 5-bit patterns possible for use in this system, the only pattern not used is 11111. Therefore, this pattern is sent 15 times at the beginning of a data block (75 ones). The purpose of using this pattern is twofold. First, since the start of a block must be found by dropping the head anywhere on the tape, the electronics searches for about 20 ones in a row, and this pattern only occurs at the block start. Second, the ones form a steady clock frequency and allows the self-correcting clocking circuitry to achieve sync in the fastest possible time. After the ones are recorded, the five bit sequence, 00101, is recorded as a sync character. This particular sequence uniquely defines the absolute start of the block. At that point, the 4 high bits of the first byte are translated to 5 bits and recorded, and then the 4 low bits are translated and recorded. The rest of the bytes are recorded in a similar manner. If a new block is not immediately started, an erase signal will begin after the last byte. Figure 4.6 depicts the format.
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DATA FLOW Record - Data is strobed into IC46 and IC47 with the data input strobe. IC3l and IC32 select the half-byte to be recorded as well as the sync address. IC29 is a ROM which then encodes the 4-bit code into the 5-bit code and sends it to the 5-bit shift register, IC's 30, 5, and 24. The data is then shifted into IC4 which provides the record signal.
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Read - Data from the read circuitry is clocked into the 5-bit shift register (IC's 30, 5, and 24). After each half-byte is loaded, data is routed through the selector (IC's 31 and 32) and into the ROM decoder (IC29). Here, the 5-bit code is decoded back into 4 bits and is loaded alternately into IC43 and IC44. to be strobed out. CONTROL SEQUENCER The flip-flops whose outputs are RECORD, RUN, B, and A control the sequence of events in the reading and recording processes. Refer to Table 4.7 for the valid sequencer states. The command strobe forces the "SEARCH FOR ONES" state immediately, and system clocks put the sequencer through the appropriate states when the strobe is removed. For record mode, the sequencer will go to the "GENERATE ONES" state at the next CLOCKI pulse. The system then waits for IC's 7 and 20 to count out 75 ones and produce the ONESDONE signal. During this time, the ONES signal forces IC29's chip enable to output all ones into the shift register. After the ones are recorded, "SEND SYNC" is entered which produces the SYNC-GEN signal to load a sync pattern into the shift register. Next, "RECORD A" is entered and selects the high bits of the data byte, loading them into the shift register. Finally, "RECORD B" loads and sends the low bits of the data byte. "RECORD A" and "RECORD B" are then alternately repeated until either the next command strobe, a tape stop or jam, or an underrun condition. The latter two events will force the sequencer to the "GAP" or erase state.
Table 4.7 Valid Sequencer States
RECORD
State RUN
B
A
0 0
1 1 1
Function GAP GENERATE ONES RECORD A RECORD B SEND SYNC
1 1 1 1 1
0
SEARCH FOR ONES SEARCH FOR SYNC READ A READ B
f3 f3 0 0
0
1 1
1 1
1 1 1
1 1
0 0 0 1 1
0 0 1 1 1
0 I'/
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po box 6528 denver, colorado 80206 (303) 777-7133
For read mode, the sequencer remains in the "SEARCH FOR ONES Il state until IC's 7 and 20 detect about 20 consecutive ones. If a zero occurs, IC7 is reset and the count begins again. When sufficient ones are found, ONEDET tells the sequencer to go to the "SEARCH FOR SYNC" state. Each read bit is then shifted into IC30 and all five bits in the shift register are selected and routed to the ROM. The SYNC signal occurs when the proper sync bit pattern is found. The "reset to 9" on IC20 is then released and the sequencer is synchronized to the data. Also, the "READ A" state becomes active, and the next five bits of data are shifted in, decoded, and loaded into IC43 as "READ B" is activated. The next five bits are operated on in the same way, except that IC44 is now loaded, and the sequencer goes back to state "READ A." This sequencer repeats until either a command strobe or an overrun occurs. In the second case, the "SEARCH FOR ONES" state is again forced until the next command strobe. DATA STATUS LOGIC READY and OVERRUN/UNDERRUN are controlled by IC21 and only occur at the times the shift register or the data output latches are being loaded. READY is set at the end of state "RECORD B" as the second half-byte of data is loaded into the shift register. It must then be serviced by the time "RECORD A" is entered, since the new first half-byte of data is needed at that point. If READY is not reset at this point (by the input data strobe), OVERRUN/UNDERRUN will latch on. In read mode, READY is set at the end of state "READ B." It is at this time that the second half-byte of data is loaded into IC44. IF the output data byte is not read before the next half-byte is loaded, the OVERRUN/UNDERRUN flag is latched on. CLOCKS AND SYSTEM TIMING There are four major clocking signals derived from a four-phase clock system. MCLK, the master clock, with DCLK, the data clock, generate ECLK, as in Figure 4.8. IC20 is used to divide DCLK by 5 and get a signal, DIVIDE~BY-5, once every data half-byte. This is combined with other clock phases and sequencer states to obtain the clocks and signals shown in Figure 4.9.
nCLK
~
DCLK ECLK Figure 4.8
4-Phase Clocks
L -_ _ C_SS_B_-I_7_______________________________
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MCLK
DCLK
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CLOCKI
DIVIDE-BY-FIVE
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Figure 4.9
SYSTEM CLOCK SIGNALS
S=shift L=load (Load pulse does not occur in READ mode) (arrows indicate the active edge)
MOTOR DRIVE AND SENSE ELECTRONICS The purpose of this section of the controls is to provide drive to the motors, braking for the motors, deck selection, and sense tape motion for feedback to the motor control electronics. TAKUPDRV goes to the low state whenever the takeup reel should be driven during read or record. R46 limits the motor torque during this operation. BOTHDRV goes low whenever the motor control electronics senses that the reels should have braking torque applied or that there may be slack tape in the cartridge. R45 limits the torque during this operation. ALCAP is used to turn on the capstan drive motor. ENGAJDRV goes to the low state whenever the motor control electronics senses that the head and pinch roller should be moved toward or away from the tape. T7, T8, T9, and TlO are used to brake the engage motor whenever it is not being ,driven. FFDRV and FRDRV are used to drive the tape in the fast forward or fast reverse direction whenever those commands are given. Transistors T2, T3, T4, and T5 in conjunction with steering diodes Dl Dll and DIS are used to provide drive to the selected deck. Diodes D12, D13 and D14 apply drag to the undriven reel during the fast forward and reverse operations to prevent excessive tape speed and to slow the tape as it nears the end of the reel. Transistors TIl and T12 generate a signal called SPIN which tells the motor control electronics that the undriven reel is turning during. the fast forward and reverse operations. The PULSE signal has small negative going pulses on it whenever the takeup reel is turning. This is used to detect tape jams and end of tape during the read, record, or erase operations. MOTOR CONTROL ELECTRONICS The motor control electronics senses the status of the tape motion, the position of the headbar, and the commands given by the user and sends control signals to the motor drive circuits. The status'bits STOP and NOT BUSY are also generated and sent to the user interface. The following discussion provides the user with a description of the primary control signals. The user should look at the state diagram given in Figure 4.10 to determine how the deck is actually controlled. PULSES is generated' by a one-shot (IC23) that goes active whenever a command is given and the deck is in the stopped state. PULSES stays active as long as a pulse is received on the PULSE line at least once every half second. If a pulse is not received within the allowed time, PULSES will go to a 1 and cause the deck to go toward the NOT BUSY state. The DELAY signal is also generated by a one-shot (IC23) and is used to inhibit tape motion sensing for 1/2 second after a command is given to allow for the tape to accelerate to the proper speed. This one-shot is also used to time the BOTH signal after a STOP command or tape jam is detected.
CSSB-19
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~___________________________ ~I~ __ Q_~~~~~_O~®~~_O~W~O_____) po box 6528 denver, colorado 80206 (303) 777-7133
Any FRCt1D unless shown elsewhere
Any FFC11D unless shown elsewhere
Any STOPCMD unless shown elsewhere
.5 sec
.5 sec from PULSE or STOPCr1D
any SLOWc.r··1D
STOPCMD note:
Names within circles are motor control signals. Labels on lines indicate commands given by user or events within controlleL.
Figure 4.10
Motor Control State Diagram
__
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~_C_S_SB_-_20_______________________________ C~~ ~~~~O~ __O_~~O~O~W~______) o_ _
po box 6528 denver, colorado 80206 (303) 777-7133
Figure 5.1
ORN*
Phi-Deck Wiring
DECK WIRING MOTOR, HEAD, and SWITCH CONNECTIONS
9 8
NINE POSITION MOLEX CONNECTOR
REV FWD
7 6
YEIJ*
5 4 3
SUP ENG ALLCAP CAPSUPPLY ALLENGSWGND
2
ALLENGSW
1
NC
POSITION 1 HAS NO CONNECTION
RED*
CAPSTAN
WHT* BLU*
*Wire Colors may vary I' C
BRN*
4
NC~------------------~
HEADBAR SWITCH NOTE: Four position mo1ex connector may be cut between 2 & 4 to separate HDGND from HDB and HDA. CSSB- 21
1. 2. 3.
4.
321
VIKRON HEAD saturation current=4ma write current=6ma read output=5.5mv bandwidth 100KHz
HDB HDA No Connection HDGRND (Shield)
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~_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ I~~_o_~~~o_o~~_O~O~_ _
po box 6528 denve" colorado 80206 (303) 777-7133
QUIT will go to the 1 level if the manual stop button is pressed, if a STOP command is given, if no pulses are detected' and there is an active SLOW command, or if SPIN goes low during any FAST command and DELAY is not active. QUIT is equivalent to STOP on the user interface. V.
CONSTRUCTION Tools:
Fine tipped, low wattage soldering iron, "wire solder" (around 20 gauge resin solder), small diagonal cutters, needle-nose pliers.
T~st
Voltmeter 500KHz or better oscilloscope 'Frequency counter Microprocessor, Mini, etc.
Equipment:
Estimated Construction Time:
6 - 11 hours
1.
Using the component placement chart given in the appendix, insert the 12 16-pin sockets into the PC board. If the sockets have an indicator for pin one, orient it away from the edge connector. Invert the board by placing a book on the sockets to hold them in and care~ully solder all pins.
2.
Insert and solder the 36 14-pin sockets as described above.
3.
Insert and solder the 6 8-pin sockets.
4.
The controller and deck need +5 Volts at 1 Amp nominal and +12 Volts at 0.7 Amps peak. Insert IC12, using silicone grease and the heat sink. Solder R57 and R58.
5.
Apply power to the board and check voltages. The 9 Volt supply should be between 8.4 and 9.6 Volts. The 5 Volts should be between 4.75 and 5.25.
6.
Remove power from the board.
7.
Insert and solder the three resistors rated above 1/4 watt (R44, R45, and R46).
9.
Insert and solder the data-rate potentiometer (R28). that it may be adjusted from the top of the board.
9.
Insert and solder the remaining resistors.
10.
Orient it so
Insert and solder all polarized capacitors (C2, C13 - C19, C22, C27, C30, C32). C13 and C14 are marked with a + or The others have a solid section of color on the positive lead. The board has + notations to aid in orientation.
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~~C_SS_B__-2~2____~~______________________ (iliffi@~--Q-~-~-o-~-a--~--O--o-------) po box 6528 denver, colorado 10206 (303) m·7133
11.
Insert and solder the various remaining capacitors.
12.
Insert and solder the four lN4148 diodes and the 15 lN4001 diodes. All diodes should be oriented so that the bands on the diode are toward the right side of the board. There is also a diode symbol on the board to aid in orientation.
13.
Insert and solder T6 - T12 into place. The emitter lead for these transistors is marked with a dot on one of the transistor pads. The appendix contains a pictorial to aid in orienting the various transistors supplied in your kit.
14.
Insert and solder the FET (TI3). Orient it so that the drain is toward the top of the board (opposite from the connector).
15.
Insert and solder TI - TS. These transistors are placed vertically with the leads inserted fully through the circuit board. Note that the emitter lead is marked with an E on the circuit board.
16.
Insert all IC's into their respective sockets, observing correct orientation (pin 1 away from edge connectors).
17.
Wire the board into the microprocessor's I/O structure, as described below. Connect the Phi-Deck by slipping the Molex connector supplied with the deck onto pins H - ~ of the controller's 36-pin socket._ Orient the Molex connectors such that the orange wire is on pin R. This puts the deck into position~. Remove the protective plastic shield from the digital head on the transport if one has been supplied.
18.
If deck I will also be used. connect its Molex connector similarly to the connector for deck~. Bend the pins out on the 36-pin socket and slip on the connector. Decks 2 and 3 must be rewired at the connector, since several of the necessary signal pins are common to all of the decks.
19.
Connect the shielded pair from deck ~ to pins I and A. Connect the ground to pin 5 or E. If deck 1 is to be used, connect the shielded pair to pins 2 and B (reverse the connector's orientation) and rewire the ground pin into deck ~'s ground connector. For decks 2 and 3, a different method of connection must be employed, as no more Molex connectors will fit.
20.
Proceed with the initial checkout of the board by following the steps under section VII, DEBUG.
21.
When the board seems to be working properly, perform the oscillator calibration and read amplifier gain calibration procedures under section VI, CALIBRATION. Calibrate the motor speed only if it is absolutely necessary. The Cassette Storage System is now ready for use.
~_C_SS_B~-2_3_______________________________ C~ilim® __o_~_o~~~~ __O_~~O __ O~O_______) po box 6528 denver, colorado 80206 (303) 777-7133
USING THE CONTROLLER IN A DIGITAL GROUP SYSTEM The connection diagram in Figure 3.2 of the controller manual is used with the Digital Group Software packages. Most systems will use the wiring chart (Table 6.1). An optional stop switch may be wired to the controller. A normally open momentary push button which brings the manual stop pin (8) to gro~nd will stop all deck movement.
VI.
CALIBRATION
Oscillator Calibration
Motor Speed Calibration
To insure compatibility between decks and tapes among all users of this system, the data rate should be adjusted to meet the standard specifications. Before you proceed with the adjustment of R28, the controller must be placed in the record mode by issuing a record command from the computer. This disables the DC feedback path to pin 5 of IC9. Adjust R28 for a 112 KHz signal at pin 3 of IC9. In record mode, this will produce an 8 KHz signal on DCLK. This bit rate (8,000 bits/sec) will record 1,600 flux changes per inch at a tape speed of five inches per second. The data rate is then 6,400 baud when referenced to the data transfer rate between the computer and the controller. - The capstan motor on the Phi-Deck is preadjusted to 5 ips at the factory. The following adjustment may be made periodically to keep the deck speed within tolerance. (Note: Side B of your tape has approximately one minute of a 4 KHz test signal recorded on it. This is equivalent to 1,600 FCPI.) Using the 4 KHz test signal recorded on the reverse side of the cassette supplied with your controller, monitor the tape signal in the read mode on IC13, pin 14. With a non-metallic screwdriver or alignment tool, adjust the tape speed through the hole on top of the capstan motor so that the frequency of the tape signal is 4 KHz.
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I
~_C_S_SB_-_24________________________________ C~---o-~-~-o--o--~--o---o------~) po box 6528 denver, colorado 80201 (303) m·7133
Table 6.1 Wiring Chart Phi-Deck Board PIN # 6 7 8 9
10 11 12 13
I/O Board (Ports
DESCRIPTION
CONNECT TO'
PIN #
007 006 005 004 003 002 001
26 25 Data Output Lines
24
23 22
21 20
oo~
19 R
15 16 17
Data Output Strobe 017 016
C B
18
014
19 20
013 012
21
011
14
o
DIS Data Input Lines
A Z Y X
DIf6 Data Input Strobe 23 L * Not Bus~" M * Stop N * Ready P * Overrun/Underrun R Status Strobe S * Enable/Disable T * Slow/Fast U * FWD/BKWD V * Stop/Run W * RCD/READ \~~ X * ERASE Y * SEL2 Z * SELl A Command Strobe
22
-B
Man stop
W U
22 Status Port
21
20 19 S
o C
Connnand Port
B
A Z Y X W
T
~~~--------~~
~-3)
DESCRIPTION MSB MSB-1 MSB-2 MSB-3 LSB+3 LSB+2 LSB+l LSB MSB-3, MSB MSB-1 MSB-2 MSB-3 LSB+3 LSB+2 LSB+1 LSB MSB, LSB+3 LSB+2 LSB+1 LSB MSB-2, MSB MSB-l MSB-2 MSB-3 LSB+3 LSB+2 LSB+l LSB MSB-1,
Input Port 2
Output Port 1 Output Port 2
Output Port 1 Input Port 2 Output Port 1 Output Port 2
Output Port 1
Stop
••----1-
Momentary, Normally Open Switch
* These pins may actually be wired to the opposite pin on the Phi-Deck Board connector (i.e., pin L to pin 10 on the Phi-Deck Board).
CSSB-25
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~_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ I~~~_o_~~~o~_o~~_O~'O~_ _
po box 6528 denver, colorado 80206 (303) 777-7133
Read Amplifier Gain Calibration
VII.
First, record several minutes of test data onto a tape that you will be using. (Once you have decided on a type of tape that gives you good results and that is readily available, you should not change tapes.) Now place the controller in read mode and read your tape. Monitor the signal at IC13, pin 1. If the amplitude is not within the limit shown in Figure 4.2, try different values of R18 until the amplitude is within limits. This adjustment is not critical and your controller will give good results even if your amplitude is not within the limits specified.
DEBUG
Reread the software section to be certain the correct procedures are bt.-! .. ng executed. Insert controller card (do not connect Phi-Deck yet) and t: n power on. Issue input and output commands to the I/O ports and verify that the strobe signals are present when the command is issued. Also, verify that the data is being latched in the command and data latches correctly (IC33, 46,47, and 28). CONNECT THE PHI-DECK AND PROCEED THROUGH THE FOLLOWING SECTIONS. MOTOR CONTROL ELECTRONICS Place an old cassette into the deck (if the motor control electronics is not working properly this.t~st may destroy the tape). Issue a fast forward command and check tape ~ovement (these commands are given in the Mechanical Considerations portion of this manual.) Issue a fast reverse command and check tape movement. Remove cassette and issue a stop command. Both reel motors should turn in opposite directions. ,Reinsert the cassette and issue a record command. The head should engage the tape and the takeup reel should turn. Place your finger on the takeup reel motor pulley. The head should disengage within 1.5 seconds after stopping the motor. If any of the above tests fail, refer to the Theory of Operation for the motor drive and sense electronics and the motor control electronics and proceed to trace the problem. HEAD SENSE AND BIT SYNCHRONIZING ELECTRONICS Place controller in record mode and output data bytes to the controller every time READY comes true. You should see waveforms similar to those shown in Figure 4.1 at the outputs of the selected head driver (IC27 O~ IC28). Waveforms similar to these should also appear on the head of the selected drive.
~__C_SS_B_-_2_6______________________________________ ~_~ ___o_~_O~O~_O~~~_o~o~______~) po box 1528 denver, colora. 10_ (303) 777-7133
The read amplifiers may be tested by using the tape you made in the previous paragraph, placing the deck in read mode after rewinding the tape, and looking for the waveforms given in Figure 4.2. If the voltage at IC13, pin 1 is clipping or not within the range shown, refer to Calibra-tion for Adjustment. This adjustment is not critical and is probably not the cause of the con~roller malfunction. The bit synchronizing electronics may be checked by verifying the timing diagram shown in Figure 4.3. READ/WRITE ELECTRONICS Test all of the clocking signals depicted in Figure 4.9. If a signal is not present or correct, trace back through the logic generating that signal. Make sure about 0.2 Volts of the tape head signal is present on record, and not on read. Check that RECORD reflects the selected state and ROY had a pulsing signal when recording or reading. The basic clock, IC9, may be removed,' and a bounceless switch (Figure 7.1) used to single step the syste,m (14 clocks per data bit). If an oscilloscope is not available, an audio amplifier with the circuit in Figure 7.2 can be used to probe for clocks and data flow. For example, recording or reading in hex "SA" will sound like a 4 KHz square wave on pin 6 of IC5, and (on record) a 2 KHz square wave o~ pin 3 of IC4. (This signal is not present on erase and read.>
to socket on IC9, pin 3 (le9 removed) prob e
.01
4.7K
aux l.npu t
m' ~O
_1_r-vvv __~~1_K--..+-f; of amplifier .1 ~ o
Figure 7.1
Single-step Clock Figure 7.2
Digital to Audio Sensor
~_C_S_SB_-_27____________________________________ (_~ ____ @~~~~ ____O_~~O ____ O~O~______) o____
po box 8528 denver, colorado 80206 (303)
77!"-.!J3~
VIII.
CSSB-28
APPENDIX
A.
Parts List
B.
PROM Pattern
C.
Connector Pinout
D.
Component Placement
E.
Schematic
F.
Transistor Orientation
G.
Driver Software Description
H.
Recording Format
I.
Flowcharts
J.
Program Tape and Listings
K.
Phi-Deck Maintenance
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~____________________~~I~_a_~~~_~_~~o_o~o_ __ _
po box 6528 denver. colorado 80206 (303) 777-7133
A. PARTS LIST DESCRIPTION 74S00 7400 7402 7404 7408 7410 7411 7420 7451 7473 7474 7475 7486 7490 7493 74107 74123 74125 74153 74155 74173,8551 74195 74S188,8223,6330-1J 75451 LM324 LM340T-8.0,uA7808 LM35S LM555 2N4403 2N5129 2N5139 2N6109 2N6410,MJE2050 MPF971 1.5Q,1/2W 7.5Q,lW 18Q,2W 47Q 82Q 220Q 470Q 510Q 680Q lKQ 1.2KQ 2.2KQ 4.7KQ 5KQPOT
CSSB-29
QUANTITY 1 8 1 2 1 2 1 2 2 1 6 4 1 1 2 1 1 3 2 1 2 1 1 4 1 1 1 1 4 1 2 4 1 1 1 1 1 2 1 1 1 1 8 7 5 2 2 1
CIRCUIT REfERENCE IC49 IC1,8,10,14,16,17,25,38, IC15 IC34,40 IC36 IC19,39 IC18 IC6,22 IC2,24 IC41 IC3,5,21,42,50,55 IC33,46,47,48 IC26 IC20 IC7,37 IC4 IC23 IC27,28,45 IC31,32 IC35 IC43,44 IC30 IC29 IC51,52,53,54 IC13 IC12 Iell IC9 T7,8,9,10 T12 T6,11 T2,3,4,5 Tl T13 R44 R46 R45 R53,57 R27 R12 R48 R58 R32,33,34,35,36,37,38,39 R6,9,20,23,26,31,55 R15,16,19,30,42 Rl,29 R2,49 R28
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~__________________________ ~I~ __ o~_o~~o~ __ o~~_O~O_ _ _ _~
po box 6528 denver, colorado 80206 (303) 777-7133
DESCRIPTION
10KSl
QUANTITY 13
15KSl 22KO 39KSl 47KSl 100KSl 1S0KSl 220KSl 1 Meg Sl 220pfd mylar .0015mfd mylar .0033mfd mylar .005mfd mylar .Olmfd disc
14
.1mfd disc Imfd tantalum
2 . 10
100mfd electrolytic 1N4001 IN4148 TO-220 Heatsink, THM6072B 4-40 Screws 4-40 Nuts #4 Lockwashers 8-Pip DIP Sockets 14-Pin DIP Sockets 16-Pin DIP Sockets Dual 22-Pin Edge Connectors Dual 36-Pin Edge Connectors PC Board
1 2 2
1 1 2 1 1 1
1 1 1
2 15 4
CIRCUIT REFERENCE. R7,8,10,11,14,l7,21,22, 24,25,43,47,54 R50 R40,41 R4,5 R3 R13 R51,52 R18 R56 C4 Cl2 C2~
C3 C5,6,7,8,9,10,1l,20,21, 23,26,28,29,31 Cl,24 C2,15,16,17,18,19,22,27, 30,32 C13,14 01,2,3,4,5,6,7,8,9,10,11, 12,13,14,15 016,17,18,19
1 2 2 2 6 36 12 1 1 1
I "
~_c_s_sa_-_30_____________________________________ C~---o-~-~-o--o--~--o---o-------) fh} box
6528 denver, colorado 80206 (303) 777-7133
B.
PROM PATTERN
A4
A3
A2
Al
AO
00000 o 0 001 00010 00011 o 0 100 o 0 101 o 0 110 o 0 111 o 1 000 01001 01010 01011 o 1 100 o 1 101 o 1 110 o 1 1 1 1 1 0 000 1 0 0 0 1 1 0 010 10011 1 0 100 1 0 101 1 0 110 1 0 111 1 100 0 1 100 1 11010 11011 1 1 100 1 1 101
1 1
CSSB-31
1 1
1
1
0
III
BO
Bl
B2
110 111 101 101 110 100 1
0
1
101 111 010 011 011 111 010 011 011 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000 000
B3
B4
B5
B6
B7
o o o o o
1
1
1
o
1
0
o
o
o
1
0
o o
o
1 1 1
o o
o
1
1
1
1 . 0 1 1 1 1
o
1
o
1
1
o
o o o
1
1
1
1
o
o
1
1
1
1 1 1
o
1 1
1
o
1 1 1 1
1
o
o o o o o
1 1
1 1
o
0 0 0 0
o
1
1 1
o
o o
0 1 0 0
0 1
o 1
o
o 1
o o o
o o
o o o o o o o
o o o 1
0 0
0 0 0
o
o
o 1
1
o
1
o o
o o
o
1 1
o
o o
o o
o
o
1
1
o
o o
o o
1
o
0
1
1
o
o o o o o
o o
( { )
~_____________________________ ~~ __ o_@~~~~_o~~~O~O~____
po box 6528 denver, colorado 80206 (303) 777-7133
.
C.
CONNECTOR PINOUT
Top of Card Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 Note:
Component Side
Description
Bottom of Card - Circuit Side Pin No.
HDA~
A
HDAI HDA2 HDA3 HDGND 007 D06 005 Data 004 Output 003 Lines 002 001 OOft1 Data Output Strobe DI7 DI6 DIS DI4 Data DI3 Input DI2 Lines DII
B C D E F H J K
L M
N. P R S T U
V W X
Y
DI~
Z
Data Input Strobe +9V Out ENG3 SUP3 FWD 3 REV3 ALLENGSW ALLENGSWGND CAPSUPPLY ALCAP ENGI SUPI FWD 1 REV 1
A
B C is E F
H J K L M N Ii R
Description HDB~
HDBI HDB2 HDB3 HDGND DATA READY IRQ n/c n/c n/c Not Busy Stop Status RE!'ady Port Overrun/underrun Status Strobe Enable/Disable Slow/Fast FWD/BKWD Command Stop/Run Port RCD/READ ERASE SEL 2 SEL 1 Command Strobe Man stop ENG2 SUP2 FWD2 REV2 ALLENGSW ALLENGSWGND CAP SUPPLY ALCAP ENG~
SUPft1 FWD~ REV~
n/c = no connection Pin 1 on 22-pin connector = +5V Pin 2 on 22-pin connector = GND Pin 22 on 22-pin connector = +12V
CSSB-32 L -_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
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po box 6528 denver, colorado 80206 (303) 777-7133
DETAIL 3
;,:
,<
~
:' .. ~,'''~ ~
()
"
.'\\';' '\
,;'
'\
\~;r
\.
PADDLE CARD TO COMPUTER
'.
I,
~
~
, '
PADDLE CARD ~.' TO PH·I-DECK
\"
,
CONNECTIONS BE11IIIEEN CARDS - DETAIL 1 1 A
~OOO~0000i60000~OOO
'1
00000 0
0
0
000 0
0
~~
0
t.
0
20 ~.
25
20 1 J" 4~
4.
4t
•
4~
~.
0 ~ 0
0
0
0
GOO
0
0
0
0
0
0
C
C
C
$
IN
36
OUT
C
.r1/0 PORT CARD 36 PIN SOCKET
BOTTOM VIEW WIRE WRAP CONNECTIONS
PHI-DECK CARD 36 PIN SOCKET
1
A
~
0
0
0
~
1" o
0
0
0
0
C
Y)
g
0
e. r
0 0 H J
0 K
1.--
V1
;J
p
rz
)J 5
T
IA
V vJ
y.
¥ z A
0$
0
0
0
0
O~O
°
0
0
0
0
0
0
0
0
0
0
~
c
i3
~
F
H-
J
0 L
038 IV '70 K
0
10
25
0 k
f1
0
IN OUT
PHI-DECK CARD CONN~NS TO PADDLE CARD BACKPLA~-DETAIL 2
PHI-DECK CARD 36 PIN CONNECTOR
o 1 A
1
'1
2 3
4
0 7 8
5
5
HEADS~-T--T----T----r-'
000 000 0 0 000 0 0 0 0 0 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
ro
~
~
o 0 0 0 0 000 0 0 0 0 000 0 0
~
~~
~
000
~
~
~
,
BOTTOM VIEW PIN SIDE DECK 2
> > N
Q
Z
II)
"
+
Q
z
+
"
1
5
'1
5
Q
Z
"
15
20
22
20
22
>
Q
+
"
It)
Z
PADDLE CARD 22 PIN CONNECTOR
PADDLE CARD CONNECTOR I JI--..,----,.....-.....--..--..---......+-oyo--~ '--..,.....-r-..--..--..---~-r-..,.....J
o 0 0 0 0 0 0 0 0
0
0
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
o
10 0
0
0
15
0 000 000
20
PIN SIDE
o
M
o
M
DECK 2
H
o
Q
DECK
"'_-IItH
Q
DECK 3
""H
o
Q
9S
DECK 1
o
H
FRONT OF CABINET
Q
o
F.
TRANSISTOR ORIENTATION
~o~
:0: l-A-i IWI 1- -
-
-
--I
I I
I I
I
I I
I 1-
.....
© ®® OB
OE
CASE A
Transistor 2N6109 2N5139 2N5129 2N4403 2N6410 MJE2050 MPF971
CASE B
B
C
E
I:,--~--~
CASE C
_____
- .....
"-
C B
E
D
I I
I I
1- _ _ _ _ _ I
.... .... .... B
I
1
E
C
tEa 8 CASE E
CASE
I
I
I 1
CASE F
Case D A or B A or B B
F E
C
_C_S_SB_-_35_________________________________
~(~ __ ~_~~o~~_o~~~O~w~O_______) a_ _
po box 6528 denver, colorado 80206 (303) 777-7133
G.
DRIVER SOFTWARE DESCRIPTION
The software supplied with the Digital Group Cassette Storage System contains deck control subroutines to allow the user to concentrate on appiications. The READ and RECORD routines provide all error recovery during read, and data verification during record. The software package consists of several major routines to aid the user in controlling the decks. These are the RECORD, CMDOUT, READ, and REWIND routines. There are numerous minor subroutines the user may invoke if he feels the need to control the deck on a more basic level. The sample 8080 l:'rogram given below is a simple example of how to use the major routines. The sample program will read the tape on deck ~ and write the data on deck 1, one block at a time. This program will halt if an unrecoverable error occurs. The major routines are described in more detail following the example. (Note: The sample Z80 program may be found under Program Listings.)
* SAMPLE
PROGRAM TO COPY A TAPE ON DECK ~ TO A TAPE ON DECK 1 * ONE BLOCK AT A TIME
*
LABEL START
REDBLK
_ _C_SS_B-_3_6_ _ _ _ _ _-
MVI STA CALL MVI STA CALL SUB STA IN ANI JZ MVI STA LXI SHLD LDA STA MVI CALL PUSH MVI CALL POP CPI. JZ CPI
OP:t;l
0\·... ,-,'.' tte da~ .. f.\.~;l\$~--\ede.'P~\ta:l.. POINTR+l con-4:fh t\ ~ t f)rde r byt.e. 4. ~ister E contains the mode. ~ indicates that the data block is.to be read into memory starting at the lo~ation specified by POINTR. 1 indicates that the' data block is to be checked for errors only (in this mode POINTR is not used). 5. RETRYS (Register D) should be initialized only if the ALTRD or ALTRD2 entry points are used. It is automatically initialized to 10 if the READ entry point is used. The user should normally use the READ entry point. 1. 2.
"a. hi'"
When the read routine returns control to the calling routine, the registers and memory are modified as follows:
1.
Registers A,B,C,D,H, and L are modified.
I
~_C_SS_B_-3_8_______________________________ (~---o-@-~-o-~-o--~--o--o------~) po box 6528 denver, colorado 80206 (303) 777-7133
2.
3.
COUNT (Register B) contains the number of bytes contained in the block: ~ 256 bytes 1 1 byte 2 2 bytes 255 255 bytes ERROR (Register A) contains the error code after a read operation has been completed. The error codes are: {21 No errors 1 Unrecoverable data error 2 Unable to find block specified by ID 3 End of tape or jam
The CMDOUT routine is used to issue commands to the transport. Memory location DECK must contain the number of the deck that is referenced by the command. Register C must contain the command to be issued to the deck. The valid commands are: COMMAND
VALUE IN REGISTER C
STOP FAST FORWARD FAST REVERSE READ RECORD ERASE STANDBY
1 1 1 1 1 1 0
1 0 0 1 1 1 1
1 1 0 1 1 1 1
1 0 0 0 0 0 1
0 0 0 0 1 1 0
0 0 0 0 0 1 0
0 0 0 0 0 0 0
0 0 0 0 0 0 0
CSSB-39
'--_~______________ Cm(Ql~jJ\@[]~ po box 6528 denv~tr, ~Iomde ,80206"(.103)' 177-.t ••
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RECORDING FORMAT
This appendix shows the block format as it is recorded on the tape by the driver software and controller. Each byte recorded on the tape consists of 10 bits or flux changes (see hardware description). DESCRIPTION 75 one bits SYNC character IO high ID law COUNT CRe 1 CRC 2 DATA CRC 1 CRe 2 TOTALS *
BYTES RECORDED
7.5 .5 1. 1.
1. 1. 1. 1. to 256 1. 1. 16 to 271
*The record routine will erase to an equivalent of 271 bytes for short blocks so that all blocks will be the same size.
~_C_SS_B_-4_0________________________________ ~(iliffi® __ ~~~~~O_~~O~O~O~____~) 'O ___
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po box 6528 denver, colorado 80206 (303) 777-7133
ERASE
ERASE
=1 pop ERASE,
STOPS =5
PUSH
STOPS
=1
PUSH POINTER
INCREMENT lOW
RESET
POP COUNT
COUNT
(PUTI 10 HIGH
RCD26
PUSH ERASE, STOPS lOR
CRC
I ALTPUTI 10 LOW
(PUT) COUNT
PUSH COUNT PUSH ERASE, STOPS
= IDW-1
DECREMENT COUNT H
SAVE CRC2 (PUTI CRC 1
=
POINTER POINTER + 256
(PUT) CRC2 SAVE COUNT
=
REWIND
RECD1
POINTER POINTER + COUNT L
ERASE FOR 4 SECONDS
ERROR
SWITCH CRC, POINTER
=0
LOAD
DATA BYTE
INCREMENT POINTER SWITCH CRC, POINTER
POP ERASE, STOPS PUSH ERASE, STOPS
PUSH COUNT INCREMENT lOR
SAVE CRC2
RECORD 1 BLOCK IRECORD11
(PUT) CRC1
(PUT) CRC2
POP COUNT
DECREMENT SAVED COUNT no
RECD3
POP ERASE, STOPS, COUNT PUSH ERASE, STOPS, COUNT INITIALIZE
POP ERASE, STOPS DECREMENT STOPS
DECREMENT COUNT H COUNT
=e
POP POINTER
COUNT COUNT COUNT
= l l
=0
~CS_SB_-4_1__________________________________ ~(~_~_~~~~~_o~®~_o~W~~__~) po box 6528 denver, colorado 80206 (303)861-1686
l·m~s·'·1 ( AL TRD 2
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STACK POINTER
POP RETRIES, MODE (D,E)
POP COUNT(B)
R054
"ETRIES,
~("IDE
(
pop B; ADJUST
MOVE COUNT TO B FROM 0
PUSH COUNT (B)
(GET)
LOAp' _POINTER (H,L1
(GET)
PUSH POINTER (H,L)
RDS
SWITCH CRC, POINTER
RESET CRC
STORE
DATA
INCREMENT POINTER SWITCH CRe. POINTER
RD55
no R050
0= COUNT R053 (GET)
ERROR= 1
ROS7 (GET)
SAVE COUNT LOAO
lOR
DECREMENT SAVED COUNT
XY" lOT-lOR RD9
ERROR
=2
POP RETRIES, MODE RDa
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CSSB-42
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po box 6528 denver, colorado 80206 (303)881-1888
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PROGRAM TAPE AND LISTINGS
****************************************************** ** The tape supplied with the program listing is an ** AUDIO CASSETTE recorded at ll~~ Baud in Suding format. This WILL NOT load from the PHI-DECK.
: :
: :
******************************************************
The program tape contains four programs in the following order: 1.
Phi-Deck Demo for
2.
Z-8~
3.
Phi-Deck Demo for
4.
8~8~
Z-8~
Ops System 8~8~
Ops System
Each program includes the PHI-DECK driver routines in the program listing in locations ~9~0H thru ~B9DH (~110~0 thru 013235) .
CSSB-43
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po box 6528 denver, colorado 80206 (303) 777-7133
Z-S¢ PHI-DECK DEMO SOFTWARE
1. 2. 3.
4.
5.
6. 7. S. 9.
10.
11. 12. 13. 14. 15. 16.
17. IS. 19. 20.
CSSB-44
Programs are loaded via audio cassette. At completion of a successful load a listing of P.hi-Deck commands will be displayed. In addition to the displayed options, there are three possible options - "R".' "S", and "P". "R" will return control to the Z-8~ Ops System which includes: 1 Read - Read an audio cassette 2 Write - write an audio cassette 3 Octal Dump - Storage Dump in octal 4 Octal Program - User programming in octal 5 Hex Dump - Storage Dump in hex 6 Hex Program - User programming in hex 7 Phi-Deck Ops "s" will display memory in either hex or octal depc:;nding upon last option (hex or octal) chosen by the user. "P" will allow user to program as in Z-S¢ Ops System in either hex or octal depending upon last method chosen in Z-S¢ options 3 thru 6. Reset will return control to Phi-Deck ops. "P", "R", and "s" will operate when in Storage.Dump, Program, or Phi-Deck Ops. Phi-Deck option "#" allows the user to select any of 4 decks (¢-3) by pressing shift # then desired deck number. To return to PhiDeck Ops press Y. The selected deck number will be displayed in the options listing upon return. Phi-Deck option "¢" will copy a tape from deck ¢ to deck 1. This is not intended as an efficient method of duplicating tapes, only as a demonstration of Phi-Deck routines. Page ¢15 is being used as a 256 byte buffer in the Copy. Tape option. Phi-Deck option "1" will erase a tape on the selected deck. Phi-Deck option "2" will fast reverse the selected deck. Phi-Deck option "3" will fast forward the selected deck. Phi-Deck option "4" will place all decks in standby. The capstan motors will be turned off. Phi-Deck option "5" will stop the selected deck. Phi-Deck option "6" will issue a read command to the selected deck. This will not read data from a tape. Phi-Deck option "7" wili issue a record command to the selected deck. This will not record data on a tape. Phi-Deck option "8"will record 256 byte blocks of data in a fixed pattern. Phi-Deck option "9" will read 256 byte blocks of data from a tape in a fixed pattern. An "e" will be displayed on the monitor for blocks in error and a "g" for good blocks.
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~________________________ I@@_o_~~o_o~~~O~O~___
po box 6528 denver. colorado 8020613031777-7133
CHANGES TO Z-8~ OPERATING SYSTEM FOR PHI-DECK DEMO
LOC
OBJ
¢54E ¢54F
,0,0 ,07
Address for key 7
¢5F~
13 B7 A¢ D¢ C8 C9
Spaces 7
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COMMENTS
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¢4D6 ¢4D7
,03 ,05
,05,0,0 ,05,01 ,05,02
C3 ,0,0 ,07
D E C K 0
D1l1
P S Return RST 8
L-_C_S_SB_-_45--_______________________________
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LC~O@_~~O~~_O~~~O~~O_______) po box 6528 denver. colorado 80206 (303) 777-7133
Z-8~
PHI-DECK DEMO SOFTWARE
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po box 6528 denver, colorado 80206 (303) 777-7133
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CSSB-48
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po box 6528 denver, colorado 80206 (303) 777-7133
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LOAD k&L ~ITH DECK SELECT MESSAGE LD A,(DECK) LOAD A WITH DECK # OR eE0H CONVERT TO ASCII LD (DNER),A LOAD rECK NUMBER IN MES SAGE ARE.~ CALL TVEDIT CALL TV EDITOR IN e INPfT iROM KEYEOARD
~~
1390 1400
089D e6~r
1330 IN 1340
RETUR~
CALL RS'I LD CALL RST LD CALL RST
#
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NO, JUMP 10 ~ESSAGE RESTART AT PBI DECK COMMANDS IF "y" HL,~SG2 LOAD E&L WITH MESSAGE AREA TVEDIT CALL TV EDITOR CPY JUMP TO COpy TAPE ROUTINE HL,MSG3 LOAD H&L WITH MESSAGE AREA TVEDIT CALL TV EDITOR RCDTD JUMF TO RECCRD TEST DATA ROUTINE HL,MSG4 LOAD E&L wITH MESSAGE AREA TVEDIT CALL TV EDITOR RTD JUMP TO READ TEST DATA ROUTINE COPY CALL COpy TAPE ROUTINE 8D RESTART Ct 0A0H LOAD C WITS FAST FORWARD COMMANt CMDOUT OUTPUT COMMAND 8D RESTART C,80H LOAt C WITH FAST REVERSE COMMAND CMDOUT OUTPUT COMMAND 8D RESTART
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~_C_SS_B_-4_9____________~_________________ rrn~~~o ~~~~~ o_~~o __ o~o~_____) po box'~ denver, colorado 80206 (303) 777 7133 e
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e5E.0
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IN REGISTER C CRC IN E,L A,H,l ALTERED TA?EIN STA'IUS IN
,10
2fee
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A~D
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2660
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2700 2710 2720 2730 2740 FF 2750 2760 2770 2780 ,','.' 2790 " )"
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2810 I1 28G0 283e
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Z,?.EwA
RET FA.ST REVERSE, FA3T FORWARr SEGISTER A CONTAINS MULTIPLE e} 1e~ MILLI-SiCON:CS DELhY !1.EGIS1E2 A ALTEREL PUSH FLSH AF C,80E Lt CALL CMDOUT POP AF CALL tELAY C,90F. LD CALL CMDOUT POP BC RET PUSH IC PUSH AF C,0A0E LD JP FRA tELAY MU LT I PLE OF 10.0 ~s IN REGISTER A REGISTERS A,B,C ALTERED EC,29:B4H LD DEC Be INC E DEC E ~~
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EA:87 C2 84 '0.A 0ABA :;:D ~AfB
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STROEE TAPEIN
LD
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0AA1 2·E 9F 0AA5 C3. 96 eA ZAA8
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A.9:FE
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STROBE JP DI NA OUTFD! DATA (DATA IN REGISTER C) RE~ISTER A IS ALTEaEL
3080 DOUT
LD
C~DA
3050
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A, C
TAPOU! A,5FH 3100 JP CMDA 3110 ~120 ):c VARIAFLE DATA ARIA LS 1D tECK NUMBE~ TO EE USED 3130 DECK DS 2D READ ID 3140 IDR 2D READ POINTER 315e POINTR DS LS 2D NRITE IL 316e· ID~ 2D wRIT~ POINTER 3170 POI~TW DS 3180 ~c REAt ONE PL0CK 31ge ):e DECK RE~AINS RUNNING AFTER RE!URN 3200 >:~ INPUT: DECK - DECK NUMBER LOCATED IN 'MEfv10i 1 3210 * 3220 ~~ POINTR - LOCATED IN MEMORY (FIRST BYTE) 3230 * 3240 ~:; ItR - LOCATED IN MEMORY 32 ~'0 ):c RETRYS - REGISTER D 3260 ~'t (ALTRD ONLY) MODE REGISTER ·E 3270 * 0=READ 3280 * 3290 )'~ l=CHECK OUTPUT: 3300 * 3310 ~( DECK, POINTER, IDR UNCHANGED REGISTER - A,B,C,D,H,L ALTERED 3320 COUNT - REGISTER E 3:3,3~ * 01=1 :BYTE 3340·* 00=256 :BYTES 3350 * ERROR - REGISTER A 3360 * 0=NO ERRORS 3370 * 3380 )',: l=CRC ERROR 2=BLOCK NOT FOUND 33se * 30S0
OUT LD
*
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~_C_S_SB_-5_8______________________________ (~---o.-~-~-o--~o--~o--o--~------~) po box 6528 denver, colorado 80206 (303) 777-7133
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3550 3560 35?0 3580 35S0
3600 3610 3620 Rt5e, 3630 RD57 3640 RD~~, 3650
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3660
3700 371e
3720 3730 3740 RD2 3750 37E0 RtS 377.0
3780 3790 RL52 3see 3810 3820 3530
3840 3850 386e 3870 3860 3t~0
3900 3910 3920 3930 3940
3950
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LD
~_C_SS_B_-5_9_______________________________ (~~ __ ~~~~~ O_~~O __ O~O~_____) O_ _
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11
ERROR=0
465?
HET
4=2Z
4:40 45te 4560 4:·70 4580 4~,90
4600 4610 4620 4630
ALTRD
rtD19 P.~9
4660 RDll6
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NZ,ALTRD L
JF ADD JP LD CALL LD
45212
4670 46E0 4E90
4710 4-710
CALL GET
Al~D
JP POP
Rl;ll
NZ,aD9
NO
SAVE COUNT DECREMENT SAVED COUNT
STOP? Z,RD52 NO RETRIES, MOtE LE
e'4 E
CALL R~wIND ERROR:;;· A,3D Lf JP RDE
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~_____________________________ ~~__ o_@~~~~_o~~_O~O~___ _ CSSB-61
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DO box 6528 denver colorado 80206
(303) n7-7133
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5. 6. 7. 8. 9.
10. 11. 12. 13. 14. 15. 16. 17. 18.
19.
20.
PHI-DECK DEMO SOFTWARE
Programs are loaded via AUDIO CASSETTE. At completion of a successful load, a listing of Phi-Deck Command options will be displayed. In addition to the options displayed on the screen, there are also three options possible - "R", "S", and "P". "R" will return control to 8~8~ OPS System options which include: 1 READ Cassette - Read an Audio Cassette 2 WRITE Cassette - Write an Audio Cassette 3 TV Storage Dump - TV Display of Memory in Octal 4 Keyboard Program - User may program in Octal 5 PHI-DECK OPS "s" will display memory as option 3 in 8~8~ OPS System. "P" will allow user to program same as option 4 in 816816 OPS System. Reset will return control to Phi-Deck Commands. "P", "R", and "s" will operate also when in Program, Storage Dump, or Phi-Deck OPS. Phi-Deck Option "#" allows user to select any of four decks (f,J'-3) by first pressing shift and # then the desired deck number. To return to Phi-Deck OPS press Y. The deck number selected will be displayed in Options listing upon return. Phi-Deck Option "I" will erase a tape on the selected deck. Phi-Deck Option "2" will fast reverse the selected deck. Phi-Deck Option "3" will fast forward the selected deck. Phi-Deck Option "4" will place all decks in standby. The capstan motors will be turned off. Phi-Deck Option "5" will stop the selected deck. Phi-Deck Option "6" will issue a read command to the selected deck. This will not read data from the tape. Phi-Deck Option "7" will issue a record command to the selected· deck. This will not record data on the tape. Phi-Deck Option "8" will record 256 byte blocks of data in a fixed pattern. P!1i-Deck Option "9" will read 256 byte blocks of data in the same pattern as recorded in Option "8". An "e" will be displayed on the monitor for blocks in error and a "g" for good blocks. Page 015 is being used as a 256 byte buffer in the copy tape routine. Option "0" will copy a tape from deck #0 to. deck #1. This is not intended as an efficient method of duplicating Phi-Deck Tapes, only as a demonstration of Phi-Deck routines.
~_C_(S_SB_-_62_ _ _ _ _ _ _ _ _ _ _.--_ _ _ _ (ilifi@~~
)
po box 6528 denver, colorado 80206 (303) 777-7133
CHANGES TO 8~8~ OPERATING SYSTEM FOR PHI-DECK DEMO LOC
~~5 112 ~~5 113 ~~5
¢¢5 ¢¢5 ~~5 ¢~5 ~~5 ~¢S
~~5 ~~5 ~~5 ~~5 ~~5 ~~5 ~~5
271 272 273 274 275 276 277 3~~ 3~1
3¢2 3¢3
3~4 3~5 3~6 ~~5 3~7 ~~5 31~
OBJ
OPERAND
COMMENTS
~¢7
ADDRESS JUMP FOR KEY 5
¢16 265
SPACES 5
24~
P H I
32¢ 31¢ 311 24~ 3~4
D E C
3¢5 3~3
313 24¢ 317 32¢ 323
K 0
P S RETURN
~~¢ 17~
~~1 ~~4
¢~7
¢~3 257 ¢¢3 26¢
¢9f3
¢~4 176 ~~4 177
¢¢3
~~5 ~¢~
3¢3 17¢ ¢¢7
~~5 ~~2
OP
17~
¢¢1 ~~3
¢¢5 ¢¢1
LABEL
~¢5
¢~5
__
~_C_S_S3_-0_-3_____________________________ C~~o_~_~~O_~_O_~~O_O~~O______) po
bo~
6528 denver, colorado 80206 (303)
777-7!~_
8~8~
LOC ~~7 ~~~ ~~7 ~~2 ¢~7 ~fi15
'1'17 (11(/ ""7 '112 ""7 ~'l5
,,"7 '12rJ (121
"en
(1"7 '124
Cl'17 "26 '1'17 '13C1 "'17 "33
OBJ
LABEL
OP
OPERAND
COMMENTS
~76 ~¢¢ ¢62 26~ ~12
COpy
HVI STA CALL MVI STA CALL SUB STA IN ANI JZ MVI STA LXI SHLD LDA STA MVI CALL PUSH MVI CALL POP CPI JZ CPI RZ HLT IN
A, ~ DECK REWIND A,l DECK REWIND A TEMPID TAPEIN
SET DECK ~ STORE DECK # REWIND DECK ¢ SET DECK 1 STORE DECK # REWIND DECK 1 CLEAR A INITIALIZE ID WAIT FOR NOT BUSY
346 rJl¢ 312 1¢1 rJrJ7 '176 '1¢1
ANI JZ
~lrJ
(162 '141 '142 '172 '162 '174 '162 17'1 376
STA LXI SHLD LDA STA INR STA MOV CPI JZ MOV
315 "76 "62 315 227 '162 333
117 ~12 ""1 26" (112 117 "12 166 '1'17 "'12
'124 '1'17 (176 (1(1" ~12
"62 26'1 (112
rJ,,7 '14'1
'141 (1(1" (115 (142 263 (112 '172 166 '1"7 '162 261 (112
'1(17 (1(17 '1'17 rJrJ7 '1'17 rJrJ7 rJrJ7 '1'17 rJ(17 rJ¢7 '1'17 (1'17 rJ(17 rJ'17
'146 '151 '154 rJ56 rJ61 '162 '164 '167 rJ7rJ f/72 '175 '177 1rJrJ 1(11
rJrJ7 1'13 rJ~7 lrJ5 '1'17 110' ,!rJ7 112 '1rJ7 115 rJ¢7 12'1 '1'17 123 rJ¢7 126 '1'17 131 rJrJ7 132 '1'17 135 ~rJ7 136 ~¢7 14¢ ¢¢7 143
REDBLK
346 '11"
'1"7 '135 (1(/7 '143
PHI-DECK DEMO SOFTWARE
'136 (1(1(1 315 271 '112 365
'116 36'1 315 233 rJ12 361 376 rJrJ'1 312 I'll '1'17 376 ¢¢2 31¢ 166 333 ~rJ2
26'1 '112 '1'1(1 '115 267 '112 166 ¢rJ7 265 0'12 166 rJ¢7 rJ~¢
312 151 ¢¢7 15¢
WRTBLK
HVI
~1'1
REDBLK A,f/ DECK H,BUFFER POINTR TEMPID IDR E,¢ READ PSW C, 36'1 CMDOUT PSW ¢ WRTBLK
¢rJ2 TAPEIN
WRTBLK A,l DECK H,BUFFER POINTW TEMPID IDW A TEMPID A,B ¢ X256 L,B
SET DECK " STORE DECK # SET UP POINTER STORE POINTER ADDRESS SET UP ID SET UP RF.AD HODE READ A BLOCK SAVE A STOP DECK RESTORE A ERROR NO BLOCK FOUND? NO, FINISHEr: HALT BECAUSE OF ERROR WAIT FOR NOT BUSY DECK NUMBER CHANGING
SET DECK 1 SET UP POINTER SET UP ID INCREMENT ID SET UP COUNT 256?
~_C_S_SB_-_64________________________________ (~iliffi@ ___o_@_~~o~o~~~o~~o_______) po box 6528 denver, colorado 80206 (303) 777-7133
LOC
-OBJ
LABEL
144 141:) 151 153 155 160 162 165 166 170' 173 174 177
0'46 30'3 0'46 0'56 315 376 312. 166 .0.0.0 .061 373 0'41 0'72
0'0'0' 155 0'0'7 0'0'1 0'0'0'
.0.07 2.02 .00'7 20'4 rJ.07 20'7 0'.07 212 0.07 215 .0.07 217 .0.07 222 .00'7 224 .0.07 227 .0.07 23.0 .0.07 233 .0.07 234 .0.07 235 0'.07 237 007 240 007 242 007 243 007 246 0~7 247
366 0'62 315 315 376 322 376 332 365 315 361 .0.07 3.06 157 046 176 062 043 176
260' 342 0'45 0'.00' 272 155 2ErJ 256
~rJ7 25.0 0.07 253 1$1$7 256 01$7 260
~62
007 0'0'7 0'0'7 0'0'7
0'rJ7 0'0'7
rJ0'7 0'.07 0.07 0.07 0'07 0'0'7 0.07
007 263 .01$7 265 01$7 270 1$1$7 272 0'0'7 274 0'.07 276
~~~ ~11
X256 CALRCD
0'0'rJ rJ24 0'0'7 .0.0.0 .0.0.0 rJrJ2
KYBD
.01.0 .00'7
.021 .0.02
127 007 254 007
255 .0.07 303 * * 376 243 302 212 00'7 056 314 31$3 240 0'.07
OPERAN[)
MVI JMP MVI MVI CALL CPI JZ HLT
H,.0 CALRCD H,l L,.0 RECORD .0 REDBLK
LXI EI LXI LOA
SP
LOAD STACK POINTER
H (0'12 260')
LOAD A W DECK #
RECORD BLOCK
TEMPID
316 0'0'7 26.0 .012
0'0'7 0'.02 0'.02
COMMENTS
OP
C'HAES
ORI STA CALL CALL CPI JNC CPI JC PUSH CALL POP RLC ADI MOV MVI MOV STA INX MOV STA JMP CPI JNZ MVI JMP
CONVERT TO ASCII PLACE DECK # IN MESSAGE CALL TV EDITOR CALL KEYBOARD NUMBER? NO, JUMP TO LETTERS < .0 ? YES, JUMP TO CHARS SAVE A ERASE RESTORE A ROTATE LEFT PRODUCE L INDEX
260' .00'7 342 TVEDIT 272 LETTER 260' CHARS A ERASE A 127 L,A H, 0'0'7 A,M
H INDEX STORE A INCREMENT H & L
H A,M
# ?
243 KYBD L, 314
30'1$ 1$13
0 1 2 3
217 0'10 211 0'1.0 2.03 .01.0
__
SELECT SELECT SELECT SELECT
l\.DDRESS ADDRESS ADDRESS ADDRESS
~_C_SS_B_-6_5~______~_____________________ C~~ ~~~~~ O_®=O_~_O~O_______) o_ _
__
po box 6528 denver, colorado 80206 (303) 777-7133
LOC
OBJ
¢~7 3~~
225 233 241 247 311 322 115 377 243
fiJrJ7 0'0'7 0'0'7 rJrJ7 0'0'7
30'2 30'4 30'6 310' 312
¢~7
314 ~0'7 316 ~r)7 317
r)r)7 32r)
24r)
r)~7
323 345 354
r)~7 ~r)7
rJrJ7 W/7 rJrJ7 rJr)7 rJrJ7 rJrJ7 rJrJ7 rJrJ7 rJrJ7 r)r)7 rJrJ7 r)r)7 rJrJ7 rJrJ7 rJ0'7 rJ0'7 0'rJ7 rJ0'7
321 322 323 324 325 326 327
240' 30'4
LABEL fiJ1fiJ 0'l~ 0'1~
!11rJ ¢13 ~13 ~14
OP
OPERAND
COMMENTS SELECT SELECT SELECT SELECT SELECT 8 9 SELECT # SELECT ERASE #
4 5 6 7
S e 1 D
e
345 343 353
k
331 332 333 334 335 336 337
rJr)4
SPACES
311 356
n
340'
240' 240' 26rJ 0'11 26r) 24rJ 3r)3
33rJ
341 342 343 344 345 0'~7 346 0'r)7 347
c
I
240' 325 363 345
U
s e
0 SPACES
r) C
357
0
rJ'17 350'
36~
p
'1~7 351 '1~7 352
371
y
0''17 353 0'rJ7 354
324' 341
T a
~¢7 355
36~
p
r)r)7 356
345 '125 261 24¢
e
r)~7
357 r)r)7 36¢ '1~7 361
ADDRESS ADDRESS ADDRESS ADDRESS ADDRESS ADDRESS ADDRESS
240'
SPACES 1
~_C_S_SB_-_66__________________________________ (~~ ___ o_~_~~O_a_o_1~~ ~g~~~m_______) po box 6528 denver, colorado 80206 (303) 777-7133
. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - _.. _.....,
j
LOC 007 362 f)f)7 363 f)f)7 364 ~f)7 365 '1~7 366 '1'17 367 '1'17 370 '1~7 371 C)C)7 372 CiCi7 373 WJ7 374 JJJJ7 375 JJJJ7 376
C)C)7 377 Ci10 ~Ci~ Ci10 001 010 010 010 010 010 010 010 010 010 010 010 010
002 003 004 005 006 007 01' 011 012 013 014 015
thd 016 010 $617 01¢ 1t12¢ ~1Jt1 ¢21 ~1~ ~22
~1~ ~23 ~1~ ~24
OBJ
E r
262
24'1 3f16
95195 9537
F
a s
341 363 364
t
24~
R
322 345 366 345 362 363 345 022 263 240 306 341 363 364
e v
e r
s e
SPACES 3 F
a s t
24~
F
3916 357 362 367 341 362 344
323 364 341 356 344 342 371 ¢27
,032
a s e SPACES 2
~31
~1~ JJ3~ ~1~ JJ31 ~1~
COMMENTS
OPERAND
3~5
~22
~1~ ~33 ~1~ 9534 951~ 9535 ~1~ 9536
OP
362 341 363 345
~25 ~1~ ~26 ~1~ ~27
Jt11Jt1
LABEL
0
r w
a r d
SPACES 4
264 24~
S t
a n d b
Y
SPACES
~_C_SS_B_-6_·7_______________________________ ~(~ __ ~~~~O~ __ O_~~O~O~O~______) o_ _
po box 6528 denver, colorado 80206 (303) 777-7133
LOC
{tl{t {tl{t (11(j 111{t (11{t 11111 {tIll 11111 111{t 11111 {tl{t 111{t 111{t 111{t
{t4rJ rJ41 1142 1143 ~44
OBJ
~32
1147
266
{t52
~53 ~54 ~55 ~1{t ~56 111{t .~57
OP
OPERAND
COMMENTS
265 24{t 323 364 357 36{t
~45 ~46 {t5~ ~51
LABEL
5 S
t 0
P SPACES 6
24~
R
322 345 341 344
e a d
~32
SPACES 7
267 24~
322 345 343 357 362 344
d
~1{t ~66 ~1~ ~67
{t3~
SPACES
27~
8
fll~ ~7~
24{t 322 345 343 357 362 344 24{t 324 345 363 364
fll{t fl6{t 111~ {t61 111~ ~62
111{t fiJ63 fl111 {t64 111{t ~65
fll{t fiJ71 {t1~ ~72 ~73 fl1~ fl74 ~1~ fiJ75 fll~ ~76 ~lfiJ ~77 (tl~ 1flfl fll~ 1f11 fll~ 1~2 fiJl~ lfiJ3 ~1~ 1f14
11111
~1~
~1~
~1~ ~1~ ~1~ ~lfiJ
~1~ ~1~
1{15 1{16 1(67 11f1 111 112 113 114
R
e c 0
r
R
e c 0
r d T
e s t
24~
304 341 364 341 cf16 271
D a t a
SPACES 9
24(1-
322
R
__
~_C_S_SB_-6_8____________________________~_C~~ ~~~~~ a_~~o~O~O~____~) o_ _
__
po box 8528--denver. colorado 80201 (303) 777-7133
LOC ~1~
OBJ
115 116 117
345 341 344
~1~ 12~ ~1~ 121 ~1~ 122 ~10' 123
24~
~1~ ~1~
~1~ ~10'
~1~ ~1~
~10' 0'1~ ~1(t
124 125 126 127 130' 131 132 133 134 135 136 137
¢1¢ ¢1¢ ¢1(t (t1(t ¢1¢ ¢1¢ 14~ ¢1¢ 141 ~1¢ 142 ~1~ 143 ~1~ 144 ~1~ 145 0'1~ 146 ~1~ 147 ¢1~ 15~ 0'1~ 151
0'1¢ 152 ¢1~ 153 ¢1~ 154 ~1~ 155 ~1~ 157 01{.~ 161
LABEL
OP
OPERAND
e
a d
324 345 363 364 240'
T
e s t
3~4
D a
341 364 341 127 320' 310' 311
t
a SPACES P H
I
24~ 3~4
D E C K
30'5 30'3 313 24~ 3~3
C
317 315 315 30'1 316 30'4 323 0'~~
366 ~4~ 376 363 312 0'0'0' 0'0'3
0
LETTER
ORI CPI JZ
363 0'0'3 0'0'0'
~4~
010 164 ~1¢ 166
376 362 312 ~~3 0'0'5
CPI JZ
362 0'0'5 0'0'3
¢1¢ 171 010 173
376 36{'6 312 0'65 f6f64
CPI JZ
0'04 0'65
¢1¢ 176 0'10' 177
317 315 0'0'~ 0'~7
RST CALL
0'1¢ COpy
CSSB-69
COMMENTS
CPY
36~
M M A N D S RETURN PRODUCE LOWER CASE
's'
?
JUMP IF ' S' TO STORAGE DUMP 'R' ? JUMP IF EQUAL TO 8~80 OPS SYSTEM 'P' ? JUMP IF EQUAL TO KEYBOARD PROGRAMMING COpy TAPE ROUTINE
______________ c~@@_o_~~~_o~~~o_o~o____) po box 6528 denver, colorado 80206 (303)
~~7133
LOC
{11~ 2~2 2~3
OBJ
LABEL
317
{11{1
~16 24~
{11~ 2~5
315 233 317
{11~ 21~
{11{1 211 {11~ 213 {11{1 216 {11~ 217 f11~ 221 f11~ 224 ~1~ 225 fllf1 227 f11~ 232 fll~ 233
~12
~16 2~~
FREV
315 233 ~12 317 ~16 354 315 233 fl12 317
ERASE
~16 16~
STNDBY
315 233 317
~12
~16 36~
(11f1 235 ~1~ 24f1 f11~ 241
315 233 317
~1~ ~1f1 f11~ ~1f1
315 233 317
243
FFWD
fl16
STOP ~12
34~
READ ~12
246 247 251 f11f1 254 f11f1 26~ f11~ 262
~16
~1~ 264
315 233 f112
~1~
~16 35~
RECORD
315 233 fl12 317 f1~6 ~f1f1
RCDTD
35f1
267
11~
~1~
27f1 fl1f6 273
315
~1~
333 fI~2 346 flfI3
RCD 25~ ~12
STATUS
275 ~1~ 277
312 273
~1f1
3{12 3{13
~~5 3~2
267 fll~
~1~ 3~6
fl26
~~2
fll~
fl1~
f11{6
31~
11~
f11~ f11~
311 314
315 333
~~2
~1{6
316
346
f1~3
f11f1
32~
312 314 ~1~
LOOP 25~ ~12
STAT
OP
RST MVI CALL RST MVI CALL RST MVI CALL RST MVI CALL RST MVI CALL RST MVI CALL RST MVI CALL RST MVI MVI CALL MOV CALL IN ANI JZ
OPERAND
COMMENTS
~1~
RESTART LOAD C w FAST FORWARD OUTPUT COMMAND RESTART LOAD C W FAST REVERSE OUTPUT COMMAND RESTART LOAD C W ERASE OUTPUT COMMAND RESTART LOAD C W STANDBY OUTPUT COMMAND RESTART LOAD C W STOP OUTPUT COMMAND RESTART LOAD C W READ OUTPUT COMMAND RESTART LOAD C W RECORD OUTPUT COMMAND RESTART INITIALIZE COUNT LOAD C W RECORD OUTPUT COMMAND LOAD C W COUNT OUTPUT DATA INPUT STATUS READY NO, INPUT STATUS
C, 24~ CMDOUT ~1~
C, 2~~ CMOOUT ~1~
C, 354 CMDOUT ~1~
C, 16~ CMDOUT ~n0
C, 36~ CMDOUT ~1~
C, J4~ CMDOUT ~1~
C, 35~ . CMDOUT ~1~ B,~
C, 35~ CMDOUT C, B OOUT 2 3 STATUS
DEC JNZ MVI
B RCD 0, 2
MOV CALL IN ANI JZ
C,B DOUT 2 3 STAT
'----_C_SS_B_-_70_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
YES, DECREMENT COUNT 256? YES, OUTPUT ADDED CHARACTERS TO ALLOW TIME FOR DELAY LOAD C W COUNT OUTPUT DATA INPUT STATUS READY? NO, INPUT STATUS
~~~
)
po box 6528 denver, colorado 80206 (303) 777-7133
LOC (11(1 323 (11(1 324 ~1~ 327 ~1(1 334 ~1(1 336
(125
~1~ 34~ (11~ 343
315 333 346 312 315 171 27(1 3(12
~1~
~1~ ~1~ ~1~ ~1~ ~1~
'-
345 347 352 355 356 357
LABEL
OBJ 3~2 31~ ~1~ 3~3 26~ (11(1
~~6 ~~~ ~16
RTD
34(1 233 (112 ~~2 ~~3
343 (11~ 217 (112
262 (113
STATR
OP
OPERAND
COMMENTS
DEC JNZ JMP MVI MVI CALL IN ANI JZ CALL MOV CMP JNZ
D LOOP RCDTD B, ~ C, 340 CMDOUT 2 3 STATR DIN A,C B ERROR
YES, DECREMENT LOOP COUNT
~1~ 362 (11(1 363 (11(1 366
(1(15 3(12 343 (11(1 {;J41 275 (113
DEC JNZ LXI
B STATR
(11(1 371 (11(1 374
315 (145 (1(12 3~3 334 (11(1
CALL JMP
TVEDIT RTD
CSSB-71
H
RECORD NEXT BLOCK INITIALIZE COUNT LOAD C W READ OUTPUT COMMAND INPUT STATUS READY? NO YES, INPUT DATA MOVE DATA TO A COMPARE TO COUNT JUMP IF NOT EQUAL TO ERROR DECREMENT COUNT 256? NO, READ NEXT BYTE OUTPUT 'g' IF END OF BLOCK CALL TV EDITOR READ NEXT BLOCK
~)
~_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ I~~_o_@~~~O~_o~@~~_O~O~_ __
po box 6528 denver, colorado 80206 (303) 777-7133
LOC
OBJ
LABEL
OP
OPERAND
COMMENTS
ERROR
LXI
H
OUTPUT Ie' IF ERROR
TVEDIT
CALL TV EDITOR READ NEXT BLOCK
~13
262
fd41273 {113
{113 f,113 f,113 f,113 f,113 {113 f,113
265 27f,1 273 274 275 276 3f,1{1
315 f,145 f,1f,12 3f,13 334 f,11f,1 345 f,1f,1f,1 347 f,1{1f,1 f,141 335 f,113
CALL JMP RTD DB DB DB DB LXI
H
f,113 3f,13 f,113 3~6
315 f,145 {1f,12 3f,13 177 {11f,1
CALL JMP
TVEDIT CPY
f,113 311
f141 361 {113
LXI
H
f,113 314 {113 317
315 f,145 f,1fd2 3f,13 26f,1 {11f,1
CALL JMP
TVEDIT RCDTD
fd13 322
f,141 f,1f,17 f,114
LXI
H
f,113 325 f,113 33{6
315 f,145 f,1f,12 3{13 334 {11{1
CALL JMP
TVEDIT RTD
~13
377 {1f,17 324 341 36f,1 345 24f,1 3f,12 345 351 356 347
{113 {113 f,113 f,113 f,113 f,113 f,113 f,113 f,113 f,113 f,113 f,113 f,113 fl13 0'13 fl13 0'13 0'13 0'13 0'13 0'13
335 336 337 34~
341 342 343 344 345 346 347 35f,1 351 352 353 354 355 356 357 360' 361 362
345
Ie'
f6
RETURN
347
'g'
f,1
RETURN LOAD COpy TAPE MESSAGE AREA CALL TV EDITOR JUMP TO COpy TAPE ROUTINE LOAD RECORDING TEST DATA MESSAGE AREA CALL TV EDITOR JUMP TO RECORD TEST DATA ROUTINE LOAD READ TEST DATA MESSAGE AREA CALL TV EDITOR JUMP TO READ TEST DATA ROUTINE ERASE SPACES T a.
P e B
e i n g
24~
30'3 357 360' 351 345 344 0'~0'
377 f1f,16
C 0
P i e d
RETURN ERASE SPACES
~_C_SS_B_-7_2_______________________________ ~~ __o_~_O~~~~_O~~~O~O~____~) po box 8528 denver. colorado 80206 (303) 777·7133
LOC
{II 3 {II 3 {II 3 fl13 fl13 fl13 fl13 {II 3 fl13 {II 3 {II 3 {II 3 fl13 fl14 fl14 fl14 fl14 {l14 "14 '14 {l14
OBJ
LABEL
OP
OPERAND
COMMENTS
363 364 365 366 367 37f1 371 372 373 374 375 376 377 fI{lf6 flfI1 flfI2
322 3"45 343 357 362 344 351 356 347 24{1 324 345 363 364 24f1 3~4
D
fI~3
341 364 341
a t a
{I{I4
"S
,,,
",
377
1ft
,~14 {ll{1
~14 ~11
fl14 0'12 0'14 ~13 0'14 ~14 ~14 ~15
0'14 fl16 ~14 {l17 {l14 "2{1 {l14 {l21 {l14 (122 fl14 (123 {l14 fl24 ~14 fl25 fl14 fl26 ~14 fl27 ~14 fl3f1 fl14 fl3l ~14 {l32 \114 {l33 {l14 {l34
"14 '35
R
e c 0
r d
i
n 9 T
e s t
RETURN ERASE SPACES T
"6
324 345 363 364 240' 3{14 341 364 341
e s t D
a t a
24(1
B
3'2 345 351 356 347 24f1 322 345 341 344 (I{I6
e i
n 9 R
e a d
SPACES
~_C_S_SB_-_73~_______________________________ (~~ ___ o_~_~~O~O~~~O~~O_______) DO
box 6528 denver, colorado 802061303\ 777-7133
LOC
014 (a'14 (j14 (j14 (114 (114 (114 (114 (114 (114 (114 (114 (114 (114 (114 (114 (114 0'14 (114 (114 0'14
OBJ
LABEL
OP
COMMEN'l'S
OPERAND
~~~
RETUIW ERASE
~46
377 323 345 354 345 343 364 24fi
~47
3~4
D
(j5!1 !lSI (j52 (j53 !l54
345 343 353
e c
036 (j37 ~4~
(j41 (j42 ~43
(j44 (j45
~55'
(156 ~57 ~6(1 ~61 ~62
~14
(163
0'14 (114 (114 (114 (114
~64 ~65 ~66 ~67 (j7~
~14 ~71 (114 ~72
(j14 0'73 (114 ~74 (114 ~75 (114 ~76 ~14 0'77 0'14 1~~ (114 1~1 ~14 1rt2 ~14 1rt3 (114 1rt4 f814 1rt5 9114 1rt6 0'14 1(j7 9114 11rt 9114 111 ,,14 112
S e 1 e c t
k
24~
316 365 355 342 345 362
N
u
m b
e r
~4~ 25~
(
26~
~
255 263 251
3 )
~5~
SPACES
3~4
0
345 343 353
e c k
24~
,•
243 24~ 26~
SPACES
f87rt 3rt4 357 356 345 277 24rt 25rt 331 277
0 0
n e ? (
y ?
~Q_~_~~O~_O_~=O __ O_·~O~______)
___C_S_S_B-_7_4__________________________________ ____
po box 6528 denver, colorado 80206 (303) 777-7133
LOC
~14
OBJ
113
251
(114 114 (114 115
~f/1~
(114 12(1 (114 123 fl14 125
(114 13(1 (114 133 (114 135 {114 137 (114 142 (114 144 (114 147 (114 152 (614 154 (114 157 (114 162 ~14 164 ~14
16(1
(114 171
(141 f/137 f/114
LABEL
OP
OPERAND
TV
LXI
H,f,114
LDA ORI STA CALL IN CPI JPC CPI JPC STA ANI STA JMP ORI CPI JNZ
DECK
f/172 26(1 f/112 366 26f/1 f/162 If/1(1 315 (145 333 f/1(1(1 376 264 322 162 376 26(1 332 133
(162 346
(162 3(13
(114 (1(12 IN
(114
(114 342 (1(17 (1(13 26(1 (112 115 (114 (14(1
366 376 371 3(12 115 (114 317
DONE
RST
COMMENTS
RETURN LOAD H & L W MESSAGE AREA LOAD A w DECK # CONVERT TO ASCII STORE IN MESSAGE CALL TV EDITOR INPUT FROM KEYBOARD > '3' ? YES
~37
26f,1 ~14
1f/1(1
TVEDIT ~
264 DONE 260 IN
< '~' ? YES PLACE NUMBER IN MESSAGE
(1(17 342 3 DECK TV
STORE DECK # JUMP TO MESSAGE CONVERT TO LOWER CASE 'V' ? NO YES
~4(1
371 TV
(11(1
~_C_S_SB_-_75_________________________________ (~~ __ ~_~=O~O~~~O~~O_______) o_ _
po box 6528 denver, colorado 80206 (303) n7-7133
8f18~
LOC
aBJ
OP
*
'* '*
.* '*
*
* *
* * '* '* '*
• '* '*
*
* 4r
"" .119'" ",2
119'5 119'6 fJ9'9
'9'A
,9'0 '9ilE ,9,F '91, fl913 {l91S '917 ,91A '91B '91C ,91F
,92{l '921 '923 '924 ~'927
"928 '929 '92C
lUI
'*
RECORD
lasS ES D5
RCD20
2ABS,A 2B 22Bl,A 23 70 B4
CA29,9 16'B IE' 1 C07BflB 3C 30 CA36,9 Dl El 'E9'
RCD12 RCD21 RCD27
47
CD9B,A 78 C9 CD4F,A
,EEC
DRIVER SOFTWARE (HEX)
OPERAND
COMMENTS
RECORD (UNTIL COUNT EXHAUSTED) DECK IS STOPPED AFTER ~TURN INPUT: DECK - DECK NUMBER LOCATED IN MEMORY POINTW - LOCATED IN MEMORY (FIRST DATA BYTE) lOW - LOCATED IN MEMORY (FIRST BLOCK) COUNT - REGISTER H,L OUTPUT: PQINTW - LOCATED IN MEMqRY (LAST DATA BYTE + 11 ERROR - REGISTER A . fI - NO ERRORS 1 - CRC ERROR IN BLOCK lOW -
1
2 - BLOCK IDW-1 NOT FOUND 3 - TAPE END OR JAM lOW - LOCATED IN MEMORY (LAST BLOCK + 1) ALTERED REGISTERS - A,B,C,D,E,H,L,IDR, POINTR MVI 0,1 ERASE = 1 E,S STOPS = 5 MVI H . COUNT PUSH PUSH o ERASE, STOPS lOW LHLD DCX lOR = lOW -1 H SHLD lOR INX H lOW = , ? MOV A,L H ORA RCD10 YES JZ MVI 0,11 RETRIES = 10 E,l MVI CHECK MODE CALL
ALTRD
INR OCR JZ POP POP MVI
A
MOV
CALL MOV
ERROR?
A
RCD13
NO ERASE, STOPS COUNT STOP SAVE ERROR
o H
C,90H B,A CMOOUT A,B
RESTORE ERROR
RET RCDla
CALL
MVI
REWIND C,ECH
ERASE
~_C_S_SB_-_76_______________________________ ~(~ __ ~~~~~ O_~~O~O~O~_____) Q_ _
__
po box 6528 denver, colorado 802061303\ 777-7133
LOC
OBJ
Sl92E 11931 )1933 51936 1'937 (1938 1'939 {l93C
CD9Bf6A 3E2a CD81f6A D1 D5 15 CA49f69 iSEEC
~93E
CD9B~A
(1941
D5
~942
CDD~9
rtJ945 1if946
Dl C338f19
11949 1194& 1948
1if94C {l94D ~950
rtJ9S1 f'9S2 {l9S5 '956 Sl9S7 fl9SA rtJ95B ~9SD
~95E
f695F "962 '963 1966 1967 "969 fl96C gJ96F ~971
f6973 1974 ,,977 "978 1979 1J97C 1J97E fl981 "983 1986 '987 "988 '989 '9SA
CSSB-77
~l
01 D5 E5 2AB7f6A 15 14 C2D4'9 1D
LABEL
RCD13 RCDlS
RCD14
RCD19
lC CA81119 43 lEfI~
D5 EB 2AB1f1A 23 22B1,A
RCD18
EB
flEE 8 CD9B¢A CDDArtJ9 DB~2
EGliD D1 CASflfl9 01 10 C2f1Sfl9 3E,3 C32f1f19 3asS CD68"A E1 D1 DS ES 97
ReD17
RCD2G
OP
OPERAND
CALL MVI CALL POP PUSH DCR JZ MVI CALL PUSH CALL POP JMP POP POP PUSH PUSH LHLD OCR INR JNZ OCR INR JZ MOV MVI PUSH XCHG LHLD INX SHLD XCHG MVI CALL CALL IN ANI POP JZ POP OCR JNZ MVI JMP MVI CALL POP POP PUSH PUSH SUB
CMOOUT A,40 DELAY D D D RCD14 C,ECH CMOOUT D
COMMENT 4 SECONDS ERASE, STOPS ERASE (ERASE - 1) BLOCKS ERASE
l;).ECRDl
D
RCD15 H D D H POiNTW 0 0
RCDIG E E RCD17 B,E E,rtJ D
ERASE, STOPS COUNT POINTER COUNT HIGH
=
~?
NO YES COUNT = COUNTL COUNTL = fI SAVE COUNT
IDR H IDR C,E8H CMOOUT RECRDI TAPEIN lIDH D RCD19 D E RCD20 A,3 RCD21 A,S FR H
D
RECORD ERROR? GET COUNT NO OCR STOPS ~?
NO ERROR
=
3
APPROXIMATELY 10 BLOCKS ERASE, STOPS COUNT
D S
A
COUNT
=
f6?
(@i@~~
)
po box 6528 denver, colonado 80206 (303) 777-7133
_LOC g98B g98C {t98F {t99{l {t993 {l996 {t999 {l99B ,,99D "9A,, {l9A1 {l9A2 "9A3 {t9A6 rl9A7 rl9AA "9AC {l9AF (69B{l (69B3 {19B4 (69B5 "9B6 ,,9B7 {l9BA (69BB {l9BC (69BF {19Cj6 ,,9C3 f69G4 {t9C7 {19CA (69CC (69CO (690(6 (6901 {19D4 fl905 JlJ907
OBJ
LABEL
82 C293~9
83 CA1F{l9 2AB5~A
RCD22
22B1{lA 16~6
iE{ll COBBJlJA 3C 3D 01 CAAAJlJ9 -14 C31'S,9 16111
2AB5JlJA 23 22B5JlJA EB 01 14 15 CAC71'9 15 E5 2AB7f6A 24 22B7,A El C388r19 2AB7f6A
JZ OCR PUSH LHLD INR SHLO POP JMP
RC025
C321~9
RC01.6
C351)f19
* *
*
* * * * * * * *
CSSB-78
OPERAND
LHLO MVI DAD SHLD SUB JMP OCR MYI JMP RECRD1
COMMENT
D
NO
RCD22 E
YES
RCD12 lOW lOR 0,6 E,l . ALTRD2
=6
RETRIES
CHECK f«>DE
ERROR?
A
A 0 RC024 D RC020
NO INCREMENT ERASE
D,l lOW
MYI
LHLO INX SHLO XCHG POP INR OCR
19 22B7(6A 97 15
ADD JNZ ADD JZ LHLD SHLD WI WI CALL INR OCR POP JZ INR
JMP RCD24
16~~
-.g6',
~
-ERASE
=
1
INCREMENT lIM
H ION 0 0 D RCD2S
..
COUNTH
= ~?
YES DECREMENT COUN'1'H
0 H
POINTW H
POINTW H RCD26 ADD COUNTL TO POINTER
POINTW
0,f6 D POINTW ERROR • ,
A
RCD27 DICIUIaIft OOORTH oogrr • •
D
B,'
JeDlI (RECORD -c.B BLOCIC)
RECORD OR DAlE OOMMAND MUST BE I~C;UED BEFORE CALLDIG. UNOERRUN MID S'l'OP SHOULD BE CHECKED AFTER
~.
INPUTS: DEC)C - IZac NUMBER LOCATED IR MEMORY ID - RBGISTER D,E 00UIft' - REGISTER B (JlJ1=1 BYTE, "'-256 BYTES)
r;)
~_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ~I~_o_~~O_o~~~O~O_ _~
po box 6528 denver, colorado 80206 (303) 777-7133
LOC
OBJ
LABEL
OP
* * * * *
~9DA
(19 DB (19 DE (19DF ~9E2
E5 21 ~~{I~ 4A CD 49{1A 4B
* *
RECRDI
PUSH LXI MOV CALL MOV
(19E3
CD42~A
CALL
~9E6 ~9E7
(19EA (19EB ¢9EC ¢9EF
48 CD42{1A 54 4D CD42{1A 4A
(19F~
CD42~A
¢9F3 (19F5 {l9F6 {l9F7 (19F8
58 E3 4E 23 E3 CD42{1A
MOV CALL MOV MOV CALL MOV CALL MOV XTHL MOV INX XTHL CALL
~9FB
05
OCR
~9FC
C2F4{19 54 40
JNZ MOV MOV
~9F4
¢9FF (1A(1~
CD42~A
CALL
4A
MOV
CD42~A
CALL
{lA(11 ¢A(14 {lA(15 ~A(18
ID
r8Ar89
CD42~A
~A~C
IC C2{19{1A
~Ar8D ~AI~ ~A13 ~A14
RECDI
OCR
RECD3
CD42~A
CALL
POP RET GET CRC IN H,L DATA RETURNED INC A,C,H,L, ALTERED IN TAPE IN
*
~A17
{lA19 {lAIC ~AIF
~A2(1 ~A21
DBr82 E6{1F CA15{1A CD8F{lA D5 79 AD
*
GET
CRC
COMMENT
POINTER - REGISTER H,L (FIRST DATA BYTE) OUTPUT: POINTER - REGISTER H,L (LAST DATA BYTE + 1) ALTERED REGISTERS - A,B,C,D,E,H,L H PUSH POINTER H,{I RESET CRC C,D ID HIGH ALTPUT C,E ID LOW PUT C,B COUNT PUT D,H SAVE CRC2 C,L CRCI PUT C,D CRC2 PUT SAVE COUNT E,B SWITCH CRC, POINTER C,M LOAD DATA H INCREMENT POINTER SWITCH CRC, POINTER PUT B DECREMENT COUNT RECDI NOT ZERO D,H SAVE CRC2 C,L CRC1 PUT C,D CRC2 PUT DECREMENT SAVED COUNT E PUT E INCREMENT SAVED COUNT RECD3 NOT ZERO PUT POP POINTER H
El C9
* * ~A15
CALL INR JNZ
OPERAND
ANI
~FH
JZ
GET
CALL
DIN
PUSH MOV XRA
0
STATUS
A,C L
~_C_S_SB_-_7_9_________________________________ (~iliID® ___Q_~~o~_a_~=o __O~o~____~) po box 6528 denver, colorado 80206 (303) 777-7133
LOC
OBJ
rlA22 rlA23 rlA2s {lA26 flA27 "A2B "A2B "A2C "A2D flA2E "A2F (lA31 "A32 "A33 rlA34 rlA36 "A37 {1A38 flA39 flA3A flA3D flA3F
6F
flA4g flA4J
flA42 rlA44 rlA46 rlA49 rlA4C
rlA4F {lAS 1 flAs4 {lAS 6 flAs8 {lASB IIA5D "A6{1 flA62 flA64 {lA67
LABEL
1E~7
17 AD 10 C22S{6A 6F
CRCA
SF E6CfI AC 57 7B E63F AD 67 17 7A D23FflA
OE9~
CD9BflA .DBfl2 E6f18 CAs4f1A
CRCFIN
* * * *
PUT ALTPUT
* * * *
REWIND REWB
OE89l
CD9BflA DBf62 E6$68 CA69lflA C9
COMMENT
MOV MVI
L,A E,7
007 TIMES
L E CRCA L,A
DONE? YES
RAL
RAL
EE~1
DB{62 E6r6F CA42f1A CDA8f1A C31FflA
OPERAND
XRA OCR JNZ MOV RRC RRC MOV ANI XRA MOV MOV ANI XRA MOV
~F ~F
6F 01 C9
OP
REWA
* * * *
E,A Cf25H H D,A A,E 3FH L H,A
SAVE 1 SAVE 2 RESTORE 1 CRC HIGH OONE TEST BIT 7 RESTORE 2 BIT 7 WAS I? YES CRC LCIW DONE
MOV A,D JNC CRCFIN XRI 1 MOV L,A POP 0 RET PUT DATA IN REGISTER C CRC IN H,L A,H,L ALTERED IN TAPE IN STATUS ANI flPH PUT JZ OOUT CALL CRC JMP REWIND REGISTER A, C ALTERED THIS ROUTINE WILL GUARANTEE DECK SELECTION MVI C,9f6H STOP CALL OvtOOUT IN TAPE IN ANI 08H JZ REWB MVI FR C,8f6H CALL CMDOUT IN TAPE IN ANI 8 JZ REWA RET FAST REVERSE, FAST FORWARD REGISTER A CONTAINS MULTIPLE OF 100 MILLI-SECONDS DELAY REGISTER A ALTERED
~_C_S_SB_-_8_0_________________________________ ~(ilim@ ___o_~~O~_O~~=O __ O~O~____~) po box 6528 denver, colorado 80206 (303) 177-71.33
LOC
OBJ
LABEL
OP
OPERAND
(tA68 {1A69 {tA6A {tA6C (tA6F (tA7(t (tA73 (tA7S (tA78 'A79 (tA7A {tA7B {1A7C {1A7E
CS FS {1E80
FR
PUSH PUSH
CD9B~A
FRA
B PSW C,80H CMOOUT PSW DELAY C,90H CMOOUT B
{1A81 {tA84 {tA8S IIA86 IIA87
IIA8A "A8B (lA8E ~A8F
{tA91 flA93 {tA9S I6A96 ,A98 gA9A
MVI
CD81~A
CALL POP CALL
~E90
MVI
CD9B{1A C1 C9 CS F5 {1EAftJ
CALL POP RET PUSH PUSH
F1
FF
MVI
C36C~A
010020 OB 04 OS C2841JA 3D C2811JA C9 3EEF 0301 DB02 4F 3EDF 0301
* *
DELAY 01
* *
DIN
DINA
C9
*
'A98 'A9E 'A9F "AAl 'AA3 {tAAS
3ABgJ,A 81 D302 3E9F 0301 C396J1A
* *
CMDOUT
CMDA
* 'M8 'AA9
79 0302
''UAMD
lESF C3Al,A
~ABJI ~AB1
00 00 00
*
OOUT
* DECK
lOR
COMMENT
B PSW C,~H
JMP FRA DELAY MULTIPLE OF 100 MS IN REGISTER A. REGISTERS A,B,C ALTERED LXI B,2oooH DCX B INR B DCR B JNZ D1 DCR A JNZ DELAY RET INPUT DATA BYTE (DATA RETURNED IN C) REGISTER A IS ALTERED MVI A,EFH OUT STROBE IN TAPEIN MOV C,A MVI A,DFH OUT STROBE RET OUTPUT COMMAND (DATA IN REGISTER C) DECK IS ORID WITH DATA REGISTER A IS ALTERED LOA DECK ORA C OUT TAPOUT MVI A,9FH OUT STROBE JMP DINA OUTPUT DATA (DATA IN REGISTER C) REGISTER A IS ALTERED MOV A,C TAPOUT OUT MVI A,SFH JMP CMDA VARIABLE DATA AREA OS 1 DECK NUMBER TO BE USED OS 2 READ 10
~_C_S_SB_-_8_1_________________________________ 0~iliro® ___o_~_~~O~_O_~=O __ O~O~______) po box 6528 denver, colorado 80206 (303) 777-7133
LOC {tAB 3 {lABS {lAB 7
00 00 00 00 00 00
LABEL
OP
OPERAND
COMMENT
POINTR lIM POINTW
OS
2 2
READ POINTER WRITE 10 WRITE POINTER
* * * * * * * *
* * * * * * *
* *
* * * * * *
* * *
*
*
fJAB9 fJABB
16fJA 05
~ABC ~ABF ~AC1 ~AC2 ~AC4 ~AC7
"21'." 08'2 57 $lEErI CD9BflA 7A E6$14
fjAC8 [AACA fjACD ~ACF
iJAD2 iJAD4 iJAD7 iJAD9 iJADA
*
READ
RDs4 ALTRD2 RDs RD51
CAD7~A
3Efl4 CD81f1A
16f1f1 C3C2~A
0630 5$1 DBrl2
RDsO RD57 RDs3
OS
OS 2 READ ONE BLOCK
DECK REMAINS IWNHIHG AFTER RETURN INPUT: DECK - DECK tnJIIIBR LOCATED 1M MEll)RY POIN'R - LOCATED 1M MIMORY (r IRST
BYTE)
lOR - LOCATED IN MDIORY RETRYS - REGISTER 0 (ALTRD ONLY) MODE - REGISTER E fI=READ
1=CHECK OUTPUT: DECK, POINTER, lOR UNCHANGED REGISTER - A,8,C,D,H,L ALTERED
COUNT - REGISTER 8 ,1-1 BYTE ."256 BYTES ERROR - REGISTER A , - NO ERRORS 1 - CRC ERROR 2 - BLOCK NOT FOUND 3 - END OF TAPE OR JAM ENTRY POINTS: READ - NORMAL ENTRY ALTRD - DECK WILL BACKSPACE FIRST, USER MUST SUPPLY RETRIES. ALTRD2 - NORMAL, EXCEPT USER MUST SUPPLY RETRIES. D,.RETRYS MVI ~TRIES, MODE o PUSH RD54 EQU RESET CRC H,fI LXI STATUS TAPE IN IN D,A MOV READ . C,ErlH MVI CMOOUT CALL STOP? A,D MOV ANI f64H NO JZ RDsfJ .4 SECONDS A,4 MVI DEIAY CALL STATUS = fj D,fI MVI RD51 JMP 8 SECOND TIMEOUT B,30H MVI D,B MOV STATUS TAPE IN IN
~_CS_S_B-_8_2_______________________________ ~(~ __ ~~~~~ O_~~O __ O~O~____~) o_ _
__
po box 6528 denver, colorado 80206 (303) 777-7133
LOC
OBJ
LABEL
~ADC
E6~F
f6ADE f6AEI f6AE2 f6AE3 f6AE4 f6AE7 9JAE8
C29f6f6B IB 14 15 C2DAf6A f65
~AEB
CD4F~A
91AEE
3E~2
RD2
~AF9J ~AFI
Dl 15
RD8
~AF2
C2BB~A
9JAF5
C9 CD15~A
9JAF9 9JAFA 91AFD 91AFE
·41 CD1S91A S9 CDlS91A 51 CD1591A
~B911
91B~2 9JB~S ~B918 ~B~9 ~B91A ~B91D
91Bf6E
OPERAND
COMMENT
ANI JNZ
f6FH RDlf6 D D D RD53 B RD57 REWIND A,2 D D RD54
READY? YES
GET B,C GET E,C GET D,C GET GET A H RDS L RDS
IDH
OCX
C2D9~A
~AF6
OP
RD52
CD15~A
97 84 C2BC91A 85 C2BC91A
*
INR DCR JNZ DCR JNZ CALL MVI POP DCR JNZ RET CALL MOV CALL MOV CALL MOV CALL CALL SUB ADD JNZ ADD JNZ COMPUTE
91B12 91BlS ~B16
f6B17 91B18 f6B19 9JBIA 91BIB 91B1C ~BID
f6BIE 91BIF
91B291 91B21 ¢B24 .0B27 9JB28 .0B2A 9JB2D
7B 2ABl~A
95 SF 6F 78 9C 67 29 29 29 29 29 7C CA38~B
F23D91B 2F C602 FA3291B FE~4
*
IDL COUNT CRCI CRC2 CRC = 91? NO NO BE TAPEID ~
* ~Bl1
ERROR = 2 RETRIES, MODE
lOR
XY'
MOV LHLD SUB MOV MOV MOV SBB MOV DAD DAD DAD DAD DAD MOV JZ JP
A,E IDR L E,A L,A A,B H H,A H H H H H A,H ID1 ID2
CMA
ADI JM CPI
2 ID3 4
REGISTER E CONTAINS Y REGISTER A CONTAINS X H = >ri/8
COMPUTE FF DELAY ADD 1+1 FOR 2'S COMP GREATER THAN THRESHOLD?
__
~_C_SS_B_-8_3_______________________________ ~C~ @~~~~ __O_~~O __ O~O~_____) o_ _
po box 6528 denver, colorado 80206 (303) 777-7133
I: L~C
OBJ
{1B2F
FABC16A CD7Al6A C3BCl6A lC 10
~B32
(1B3S ~B38
"B39 flB3A {lB3D fl83F fl842 fIB 4 5 ~46
fl847 ~B48
~4B
{1B4C fJB4F gB52 {lB53 (1854 {lB57 {laS 8 {lBS9 I1B5A ~BSB
{lB5C {lB5F {lB6~ ~B61
C068l6A C3EEl6A 42 01 C5 2AB3l6A E5 21fJl6l6fJ COI5~A
lC ID C2SBl6B E3 71 23 E3 !IS C24Fl6B Cl CI CDlSl6A CDIS~A
{l867 l6B69 {lB6A {lB60
OB~2
~B6E
IF OA7Bl6B IF IF
~B6F
DA96~B
l6B72
97 84
(lB74 l6B77 {lB78 {lB7B "B70 ~B8~ ~B82 ~B85
16886 l6887 l6B8A l6B8B l6B8E
103 101
CA4S~B
C6l66
~B64
~B73
LABEL
102
R06
RDS6
RDSS
C27B~B
85 CA85l6B 3E~5
ALTRD
C068~A
3E~1 C3FI~A
516
RD19
15 COISl6A 14
RD9
C287~B
97
OP
OPERAND
COMMENT
JM CALL JMP INR OCR JZ AOI CALL JMP MOV POP PUSH LHLO PUSH LXI CALL INR DCR JNZ XTHL MOV INX XTHL OCR JNZ POP POP CALL CALL IN RAR JC RAR RAR JC SUB ADD JNZ ADD JZ MVI CALL MVI JMP MOV OCR CALL INR JNZ SUB
RDS FF RDS E E RD6 6 FR R02 B,D 0 B POINTR H H,l6 GET E E RD5S
NO
M,C H B
Y
=
l6?
YES
COUNT RETRIES, MODE COUNT
RESET CRC
SWITCH CRC, POINTER STORE DATA BUMP POINTER SWITCH CRC, POINTER DECREMENT COUNT
ROS6 B
B GET GET TAPEIN ALTRD RDII A H ALTRD L R019 A,S FR A,l R08 D,B 0 GET D R09 A
ADJUST STACK POINTER COUNT
STATUS OVERRUN? YES STOP? YES
NO
GREATER THAN I BLOCK ERROR = I SAVE COUNT DECREMENT SAVED COUNT INCREMENT SAVED COUNT ERROR
=
~
~_C_S_SB_-_84_______________________________ ~(~ __ ~~~~~ O_'~~O __ O_'~o~____~) Q_ _
__
po box 6528 denver, colorado 80206 (303) 777-7133
LOC
OBJ
¢B8F
C9
~B9~
E6~4
¢B92 ¢B95 ¢B96 ¢B99 ¢B9B
CAF6¢A D1 CD4F~A
3E¢3 C3F1~A
LABEL
OP
RDIO
RET ANI
JZ ROll
POP CALL MVI JMP END
OPERAND
COMMENT
¢4H RDS2
STOP? NO RETRIES, MODE
0
REWIND A,3 R08
ERROR = 3
~_C_SS_B_-8_5__________________________________ ~(~ __ ~~~~~ O_~~O __ O~O~_____) o_ _
__
po box 6528 denver, colorado 80206 (303) 777-7133
8~8~
DRIVER SOFTWARE (OCTAL)
LABEL
~11 ~11 ~11 ~11
~~~ ~~2 ~~4 ~~5
~11 ~11 ~11 ~11 ~11 ~ll ~ll ~ll ~ll ~11 ~ll ~ll ~11 ~11 ~11 ~11 ~11 ~ll ~11
~~6 ~11 ~12 ~15 ~16 ~17 ~2~ ~23 ~25 ~27 ~32 ~33 ~34 ~37 ~4~ ~41 ~43 ~44 ~47
¢11 ¢5¢ ¢11 ~51 ¢11 ~54
¢26 ¢36 345 325 ¢52 ¢53 ¢42 ¢43 175 264 312 ¢26 ¢36 315 ¢74 ¢75 312 321 341 ¢16 1¢7 315 17¢ 311 315 ¢16
¢~1
RECORD
¢¢5 RCD2~
265 ¢12 261
~12
OPERAND
COMMENTS
RECORD (UNTIL COUNT EXHAUSTED) DECK IS STOPPED AFTER RETURN INPUT: DECK - DECK NUMBER LOCATED IN MEMORY POIN!I1W LOCATED I N MEMORY (FIRST DATA BYTE) IDW - LOCATED IN MEMORY (FIRST BLOCK) COUNT - REGISTER H,L OUTPUT: POINTW LOCATED I N MEMORY (LAST DATA BYTE + 1) ERROR - REGISTER A ~ - NO ERRORS 1 - CRC ERROR IN BLOCK IDW - 1 2 - BLOCK IDW-l NOT FOUND 3 - TAPE END OR JAM lDW - LOCATED IN MEMORY (LAST BLOCK + 1) ALTERED REGISTERS - A,B,C,O,E,H,L,IOR, POINTR MVI D,l ERASE = 1 MVI E,5 STOPS = 5 PUSH H COUNT PUSH D ERASE, STOPS LHLD IDW DCX H IDR = lOW -1 SHLD IDR INX H MOV A,L lOW ? ORA H JZ RCDl¢ YES MVI D,11 RETRIES = MVI E,l CHECK MODE ALTRD CALL INR A ERROR? DCR A JZ RC013 NO POP D ERASE, STOPS POP H COUNT MVI STOP C,9¢H MOV B,A SAVE ERROR CALL CMDOUT MOV A,B RESTORE ERROR RET CALL REWIND MVI C,ECH ERASE
=•
l'
¢51 ¢ll ¢13 ¢¢1 173 ¢13 ~66
¢11
22¢
RCD12 RCD21 RCD27
233 ¢12 117 ¢12 354
RCD1¢
__
~_C_SS~B_-8_6__~___________________________ C~~ ~~~~~ O_~~O O~W_______) o_ _
po
__
__
box 6528 denver, colorado 80206 (303) n7-7133
OBJ
,LaC ~11 ~11 ~11 ~11 ~11 ~11 ~11 ~11 ~11 ~11 ~11 ~11 ~11
~56 ~61 ~63 ~66 ~67 ~7~ ~71 ~74 ~76 1~1 1~2 1~.? 1~6
~11 ~11 ~11 ~11 ~11
111 112 113 114 115
~11 ~11 ~11 ~11 ~11 ~11 ~11 ~11
12~
121 122 125 126 127 132 133
S11 135' ~11 ~11 ~11 ~11
136 137 142 143 S11 146 ~11 147 ~11 151
S11 154 SII 157 S11 161 ~11 ~11 ~11 ~11 ~11 ~11 ~11 ~11
163 164 167 17j 171 174 176 2_1 jl1 2.3 jll 2'6 ~11 2.7 ~11 21' ~11 211 1~11 212
LABEL
315 233 ~76
315 321 325
~12
~5~ 2~1 ~12
RCD13
~25
RCD15
312 111 ~16 354 315 233 325 315 332 321 3~3
~11 ~12 ~11
~7~ ~11
RCD14
341 321 325 345 ~12
~52 ~25 ~24 3~2 ~35 ~34
267 324
~11
312
2~I
~I1
RCDI9
1~3
_36 S~S 325 353 _52 261 _43 _42 261 353 ~16
35~
315 233 315 332 333 ~S2 346 ~15 321 312 12~ 321
RCD18 ~12 ~12
~12 ~11
~11
~35
3S2
~~5 ~11 ~~3 S4~ ~11
_76 3_3 _76 j~5 315 15~ 341 321 325 345 227
RCD17 ~12
RCD26
OP CALL MVI CALL POP PUSH DCR JZ MVI CALL PUSH CALL POP JMP POP POP PUSH PUSH LHLD DCR INR JNZ DCR INR JZ MOV MVI PUSH XCHG LHLD INX SHLD XCHG MVI CALL CALL IN ANI POP JZ POP DCR JNZ MVI JMP MVI CALL POP POP PUSH PUSH SUB
COMMENT
OPERAND CMDOUT A,4~
4 SECONDS
DELAY D D D RCD14 C,ECH CMDOUT D
ERASE, STOPS ERASE (ERASE-I) BLOCKS ERASE
RECRDl
D RCD15 H D D H
ERASE, STOPS COUNT POINTER COUNT HIGH =
POINTW
D D RCDI6 E E RCD17 B,E
~?
NO YES COUNT = COUNTL COUNTL = ~ SAVE COUNT
E,~
D IDR H IDR C,E8H CMDOUT
RECORD
RECRDl
TAPEIN
ERROR?
~DH
D RCD19 D E
GET COUNT NO OCR STOPS
RCD2~
NO ERROR = 3
~?
A,3 RCD21 A,S FR H D D H A
APPROXIMATELY
1~
BLOCKS
ERASE, STOPS COUNT COUNT =
~?
~_C_S_SB_-_87_________________________________ ~~~_'_' ~_~~o __o~~~o~~o_______) o_ _
DO
box 6528 denver, colorado 80206 (303) n7-7133
LOC ~II ~II ~II ~ 11
¢11 ~11
¢11 ¢II ¢II ~11
¢11 ¢11 0'11 ¢11 SII
~11
• S 11 ~11
OBJ 213 214 217 22¢ 223 226 231 233 235 24¢ 24i 242 243 246 247 252 254 257
SII 26~ S 11 263 SII 264 '11 265 ~II 266. '11 267 ~Il 272 ~II 273 ~II 274 '11 277 '11 3;' '11 3'3 ~ 11 3,4 ~II ~II
3~7
312 '11 314 '11 315 ~11 32$f ~Il 321 ~11 324 '11 325 ~11 327
2¢2 3¢2 2¢3 312 ¢52 ¢42 ¢26 ¢36 315 ¢74 ¢75 321 312 ¢24 3S3 ¢26 S52 S43 S42 353 321 S24
LABEL 223 ¢11 ¢37 ¢11 265 ¢12 261 ~12
RCD22
~¢6
¢¢I 273 ¢I2
252 ¢ 11 ¢¢5 SII S¢1 265 ¢12
RCD24
265 ¢12
~25
312 3¢7 ¢11 '25 345 '52 267 S12 ~44
,42 267 S12 341 3'3 2I~ ~ 11 '52 267 S12 S26 S~~ ~31 ~42
267
~12
3~3 ~41
¢11
RCD25
227
S25 SSG ~~S 3S3 135 S11
RCD16 "
,,~
,~ ,,~
,~ ,,~
,~ ,,~
v
,,~
u
,,~
,~
""
".
"" ,~ ,,~
,~
"" ,~ ,,~
OP
OPERAND
ADD JNZ ADD JZ LHLD SHLD MVI MVI CALL INR DCR POP JZ INR JMP MVI LHLD INX SHLD XCHG POP INR DCR JZ DCR PUSH LHLD INR SHLD POP JMP LHLD MVI DAD SHLD SUB JMP OCR MVI JMP
D RCD22 E RCD12 IDW IDR D,6 E, 1
COMMENT NO YES RETRIES = 6 CHECK MODE
ALTRD2
A A D RCD24 D RCD2¢ D, 1 IDW H IDW D D D RCD25 D H
ERROR? NO INCREMENT ERASE ERASE = 1 INCREMENT IDW
COUNTH = ¢? YES DECREMENT COUNTH
POINTW
H
PQINTw
H RCD26 POINTW
ADD COUNTL TO POINTER
D,¢ 0 POINTW
A RCD27
ERROR = ¢
DECREMENT COUNTH B,S COUNT =¢ RCD18 (RECORD ONE BLOCK) RECRDI RECORD OR ERASE COMMAND MUST BE ISSUED BEFORE CALLING. UNDERRUN AND STOP SHOULD BE CHECKED AFTER RETURN. INPUTS: DECK - DECK NUMBER LOCATED IN MEMORY 10 - REGISTER D,E COUNT - REGISTER B (¢1=1 BYTE, ¢S=256 BYTES) 0
~_C_S_SB_-8_8_______________________________ (~~ __o_@_O~~~~ __ ~_~~O __ O~O~_____) po box 6528 denver, colorado 80206 (303) n7·7133
OBJ
LaC
LABEL ~~
v
~~
v
~~
v
~~
v
~~
v
~~
.~
~~
¢11 ¢11 ¢11 ¢11 ¢11 ¢11 ¢11 ¢11 ¢11 ¢11 ¢11 ¢11 ¢11 ¢11 ¢11 ¢11 ¢11 ¢11 ¢11 ¢11 ¢11 ¢11 ¢12 ¢12 ¢12 ¢12 ¢12 ¢12 ¢12 ¢12 ¢12 ¢12 ¢12
332 333 336 337 342 343 346 347 352 353 354 357 36¢ 363 364 365 366 367 37¢ 373 374 377 ¢¢¢ ¢¢1 ¢¢4 ¢¢5 ¢1¢ ¢11 ¢14 ¢15 ¢2¢ ¢23 ¢24
345 ¢41 112 315 113 315 11¢ 315 124 115 315 112 315 13¢ 343 116 ¢43 343 315 ¢¢5 3¢2 124 115 315 112 315 ¢35 315 ¢34 3¢2 315 341 311
RECRDI
¢¢¢ ¢¢¢ 111 ¢12 1¢2 ¢12 1¢2 ¢12 1¢2 ¢12 1¢2 ¢12 RECD1
1¢2 ¢12 364 ¢11 1¢2 ¢12 1¢2 ¢12 1¢2 ¢12
RECD3
¢11 ¢12 1¢2 ¢12 v
~~
v
~~
.~
~~
.~
~~
¢12 ¢12 ¢12 ¢12 ¢12 ¢12 ¢12
¢25 ¢27 ¢31 ¢34 ¢37 ¢4¢ ¢41
CSSB-89
333 346 312 315 325 171 255
¢¢2 ¢17 ¢25 ¢12 217 ¢12
GET
CRe
OP
OPERAND
COMMENT
POINTER - REGISTER H,L (FIRST DATA BYTE) OUTPUT: POINTER - REGISTER H,L (LAST DATA BYTE + 1) ALTERED REGISTERS - A,B,C,D,E,H,L PUSH POINTER H RESET CRC H,¢ C,D ID HIGH ALTPUT ID LOW C,E PUT C,B COUNT PUT SAVE CRC2 D,H CRC1 C,L PUT CRC2 C,D PUT SAVE COUNT E,B SWITCH CRC, POINTER C,M LOAD DATA INCREMENT POINTER H SWITCH CRC, POINTER PUT DECREMENT COUNT B RECD! NOT ZERO SAVE CRC2 D,H C, L CRCI PUT C,D CRC2 PUT E DECREMENT SAVED COUNT PUT E INCREMENT SAVED COUNT RECD3 NOT ZERO PUT POP POINTER H
PUSH LXI MOV CALL MOV CALL MOV CALL MOV MOV CALL MOV CALL MOV XTHL MOV INX XTHL CALL DCR JNZ MOV MOV CALL MOV CALL DCR CALL INR JNZ CALL POP RET GET CRC IN H,L DATA RETURNED IN C A,C,H/L , ALTERED IN TAPEIN ANI ¢FH JZ GET CALL DIN PUSH D MOV A/C XRA L
STATUS
(ililL@~~
)
po box 6528 denver, colorado 80206 (303) 777-7133
OBJ
LOC ~12 ~12 ~12 ~12
~42 ~43 ~45 ~46
¢12 ¢47 ~12 ~12 ~12 ~12 ~12 ~12 ~12 ~12 ~12 ~12 ~12 ~12
~5¢ ~53 ~54 ~55 ~56 ~57 ~61 ~62
¢63 ~64
¢66 ~67
¢12 ~7~ ~12 ¢71 ~12 ¢72 ~12 ¢75 ¢12 ¢77 ~12 1¢¢ ~12 1¢1
LABEL
157 ~36
~~7
CRCA
¢27 255 ~35 3~2
~45
~12
157 ¢17 ~17
137 346 3¢~ 254 127 173 346 ~77 255 147 ~27
172 322 356 157 321 311
~77 ¢~1
¢12 CRCFIN .. v
~
v
.. v
..v ~12 ~12 ~12 ~12
1~2 1~4 1~6
111 ¢12 114
333 ~~2 346 ~17 312 1~2 ~12 315 25¢ 012 3~3 ¢37 012
~
~
PUT ALTPUT ..
,~
~
v v
,,~
,,~
~12 ~12
117 121 012 124 ~12 126 ~12 ~12 ~12 ~12 ~12 ~12 ~12
13~
133 135 14¢ 142 144 147
~16
22~
315 233 012 333 ~~2 346 ¢1~ 312 124 ~12 ~16
REWIND REWB
2~¢
315 233 ¢12 333 ~~2 346 ¢1~ 312 14¢ ¢12 311
REWA
..,~
..v .."-.
..v -
CSSB-90
OP
OPERAND
COMMENT
MOV L.,A MVI E.,7 ~~7 TIMES RAL XRA L DCR E DONE? JNZ CRCA YES MOV L.,A RRC RRC SAVE 1 MOV E.,A ANI C~H XRA H SAVE 2 MOV D.,A RESTORE 1 MOV A., E ANI 3FH XRA L CRC HIGH DONE MOV H.,A TEST BIT 7 RAL RESTORE 2 MOV A,D CRCFIN JNC BIT 7 WAS 11 YES XRI 1 CRC LOW DONE MOV L.,A POP D RET PUT DATA IN REGISTER C CRC IN H, L A.,H.,L ALTERED STATUS TAPEIN IN ANI ~FH JZ PUT DOUT CALL CRC JMP REWIND REGISTER A., C ALTERED THIS ROUTINE WILL GUARANTEE DECK SELECTION STOP MVI C.,9~H CALL CMDOUT IN TAPEIN ANI ~8H JZ REWB FR MVI C.,8~H CMDOUT CALL IN TAPEIN ANI 8 JZ REWA RET FAST REVERSE., FAST FORWARD REGISTER A CONTAINS MULTIPLE OF 1~¢ MILLI-SECONDS DELAY REGISTER A, ALTERED
(Wi@@]fig]~~
)
po box 6528 denver, colorado 80206 (303) n7-7133
LOC ¢12 ¢12 ¢12 ¢12 ¢12 ¢12 ¢12 ¢12 ¢12 ¢12 ¢12 ¢12 ¢12 ¢12
15¢ 151 152 154 157 16¢ 163 165 17¢ 171 172 173 174 176
OP
3¢5 365 ¢16 315 361 315 ¢16 315 3¢1 311 3¢5 365 ¢16 3¢3
FR
B PUSH PSW PUSH C,8¢H MYI CMDOUT CALL PSW POP DELAY CALL C,9¢H MYI CMDOUT CALL B POP RET B PUSH PSW PUSH MYI C/A¢H FRA JMP DELAY MULTIPLE OF 1¢¢ MS IN REGISTER A • REG I STERS A, B"C ALTERED LXI B,2¢¢¢H B DCX B INR B DCR D1 JNZ A DCR DELAY JNZ RET INPUT DATA BYTE (DATA RETURNED IN C) REGISTER A IS ALTERED A,EFH MYI STROBE OUT TAPEIN IN C,A MOV A,DFH MVI STROBE OUT RET OUTPUT COMMAND (DATA IN REGISTER C) DECK IS OR'D WITH DATA REGISTER A IS ALTERED DECK LDA C ORA OUT TAP OUT MVI A,9FH STROBE OUT DINA JMP OUTPUT DATA (DATA IN REGISTER C) REGISTER A IS ALTERED MOY A,C OUT TAP OUT A,5FH MYI CMDA JMP VARIABLE DATA AREA DECK NUMBER TO BE USED DS 1 READ ID 2 DS
2¢¢ 233 ¢12
FRA
2¢1 ¢12 22¢ 233 ¢12 FF 24¢ 154 ¢12
., ., ~~
2¢1 2¢4 2 ¢'5 2¢6 2¢7 212 213 216
¢¢1 ¢¢¢ ¢4¢ ¢13 ¢¢4 ¢¢5 3¢2 2¢4 ¢12 ¢75 3¢2 2¢1 ¢12 311
DELAY D1
., ., ~~
~~
¢12 ¢12 ¢12 ¢12 012 ¢12 ¢12
217 221 223 225 226 23¢ 232
¢76 323 333 117 ¢76 323 311
357 ¢¢1 ¢¢2
DIN
337 ¢¢1
DINA ,~
~~
,~
~~
., ~~
¢12 ¢12 ¢12 ¢12 ¢12 ¢12
233 236 237 241 243 245
¢72 261 323 ¢76 323 3¢3
26¢ ¢12
CMDOUT
¢¢2 237 ¢¢1 226 ¢12
CMDA " ., ~~
~~
¢12 ¢12 ¢12 ¢12
25¢ 251 253 255
171 323 ¢¢2 ¢76 137 3¢3 243 ¢12
DOUT
., ~~
¢12 26¢ ¢12 261
CSSB-91
COMMENT
LABEL
~~
¢12 ¢12 ¢12 ¢12 ¢12 ¢12 ¢12 ¢12
OPERAND
OBJ
¢¢¢ ¢¢¢ ¢¢¢
DECK IDR
r;,)
_____________________________ I~~ __ =_@~~~~_o~~~O~O_____
po box 6528 denver, colorado 80206 (303) 777-7133
LOC ~12 ~12 ~12
263 265 267
POINTR
READ POINTER DS 2 WRITE ID DS 2 WRITE POINTER DS 2 READ ONE BLOCK DECK REMAINS RUNNING AFTER RETURN INPUT: DECK - DECK NUMBER LOCATED IN MEMORY POINTR - LOCATED IN MEMORY (FIRST BYTE) IDR - LOCATED IN MEMORY - REGISTER D RETRYS ( ALTRD ONL Y) MODE - REGISTER E
POINTW
v
.~
v
.~
v
.~
v
.~
v
.~
v
.~
v
.~
v
.~
v
.~
v
.~
v
.~
. v
.... ~
v
~12 ~12
271 273
~26
325
READ RD54
~12 ~12 ~12 ~12 ~12 ~12 ~12 ~12 ~12 ~12 ~12 ~12 ~12 ~12 ~12
274 277
~41 ~~~ ~~~
RD5
3~1 3~2 3~4 3~7 31~
312 315 317 322 324 327 331 332
CSSB-92
333 127
~~2
~16
34~
ALTRD2
RD51
315 233 172 346 ~~4 312 327
~12
2~1
~12
~12
~76 ~~4
315
~26 ~~~ 3~3 3~2 ~12 ~¥16 ~6~ 12~
333
~~2
COMMENT
OP
IDW
~12
OPERAND
LABEL
RD5~
RD57 RD53
~=READ
l=CHECK OUTPUT: DECK, PuINTER, IDR UNCHANGED REGISTER - A,B,C,D,H,L ALTERED COUNT-- REGISTER B ~1=1 BYTE ~~'=256 BYTES ERROR - REGISTER A ~ - NO ERRORS 1 - CRC ERROR 2 - BLOCK NOT FOUND 3 - END OF TAPE OR JAM ENTRY POINTS: READ - NORMAL ENTRY ALTRD - DECK WILL BACKSPACE FIRST, USER MUST SUPPLY RETRIES • ALTRD2 - NORMAL, EXCEPT USER MUST SUPPLY RETRIES MVI D, RETRYS PUSH RETRIES, MODE D RD54 EQU LXI RESET CRC H,~ IN TAPEIN STATUS MOV D,A MVI READ C,E~H CALL CMDOUT STOP? MOV A,D ANI ~4H JZ NO RD5~ MVI A,4 .4 SECONDS CALL DELAY MVI STATUS = ~ D,~ JMP RD51 MVI 8 SECOND TIMEOUT B,3~H MOV D,B TAPEIN IN STATUS
~)
~___________________ ~I~_o_@~~O~_o~'~_O~O~__
po box 6528 denver, colorado 80206 (303) n7-7133
_OC .012 .012 .012 .012 .012 .012 .012 ~12
.012 .012 .012 .012 .012 .012 .012 .012 .012 .012 .012 .013 .013 .013 .013 ~13
.d13 .013 .013
OBJ 334 336 341 342 343 344 347 35.0 353 356 36.0 361 362 365 366 371 372 375 376 .0.01 .0.02 .0.05 .01.0 .011 .012 .015 .016
346 3.02 .033 .024 .025 3.02 .0.05 3.02 315 .076 321 .025 3.02 311 315 1.01 315 131 315 121 315 315 227 2.04 3.02 2.05 3.02
LABEL .017 22.0 .013
332 .012 331 .012 117 .012 .0.02
RD2 RD8
273 .012 .025 .012
RD52
.025 .012 .025 .012 .025 .012 .025 .012 274 .012 274 .012 ~~
..
OP
OPERAND
COMMENTS
ANI JNZ DCX INR DCR JNZ DCR JNZ CALL MVI POP DCR JNZ RET CALL MOV CALL MOV CALL MOV CALL CALL SUB ADD JNZ ADD JNZ COMPUTE
.0FH RD1.0 D D D RD53 B RD57 REWIND
READY? YES
ERROR
D D RD54
RETRIES~
GET
IDH
~13
.021 .022 .025 .026 .027 .03.0 .031 .032 .033 .034 .035 .036 .037 .04.0 .041 .044 .047 .05.0 .052 .055
eSSB-93
173 .052 225 137 157 17.0 234 147 .051 .0 5·1 .051 .051 .051 174 312 362 .057 3.06 372 376
261 .012
.07.0 .013 .07¢ .013 .0.02 .062 .013 .0.04
MOV LHLD SUB MOV MOV MOV SBB MOV DAD DAD DAD DAD DAD MOV JZ JP CMA ADI JM CPI
MODE
B~C
GET
IDL
E~C
GET
COUNT
D~C
GET GET A H RD5 L RD5
~~
.013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013
=2
A~2
CRC1 CRC2 CRC = .0? NO NO BE TAPEID -HL IDR XY
A~E
IDR L E~A L~A A~B
REGISTER E CONTAINS Y
H
REGISTER A CONTAINS X H XY/8
H~A
H H H H H
=
A~H
ID1 ID2 2 ID3 4
COMPUTE FF DELAY ADD 1+1 FOR 2'5 CaMP GREATER THAN THRESHOLD?
r;)
~____________________ ~I~_Q_~~~O~_o~®_~~W~__
po box 6528 denver, colorado 80206 (303) n7-7133
LaC .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .0.13 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013 .013
CSSB-94
OBJ .057 .062 .065 .07.0 .071 .072 .075 .077 1.02 1.05 1.06 1.07 11.0 113 114 117 122 123 124 127 13.0 131 132 133 134 137 14.0 141 144 147 151 152 155 156 157 162 163 164 167 17.0 173 175 2.0.0 2.02 2.05 2.06 2.07 212 213 216
372 315 3.03 .034 .035 312 3.06 315 3.03 1.02 321 3.05 .052 345 .041 315 .034 .035 3.02 343 161 .043 343 .0.05 3.02 3.01 3.01 315 315 333 .037 332 .037 .037 332 227 2.04 3.02 2.05 312 .076 315 .076 3.03 12.0 .025 315 .024 3.02 227
LABEL 274 .012 172 .012 274 .012
ID3 ID1
1.05 .013 .0.06 15.0 .012 356 .012
ID2 RD6
263 .012 .0.0.0 .0.0.0 .025 .012
RD56
133 .013
RD55 117 .013 .025 .012 .025 .012 .0.02 173 .013 226 .013 173 .013 2.05 .013 .0.05 15.0 .012 .0.01 361 .012
ALTRD
RD19 .025 .012· 2.07 .013
RD9
OP
OPERAND
COMMENT
JM CALL JMP INR DCR JZ ADI CALL JMP MOV POP PUSH LHLD PUSH LXI CALL INR DCR JNZ XTHL MOV INX XTHL OCR JNZ POP POP CALL CALL IN RAR JC RAR RAR JC SUB ADD JNZ ADD JZ MVI CALL MVI JMP MOV OCR CALL INR JNZ SUB
RD5 FF RD5 E E RD6 6 FR RD2 B,D D B
NO Y
= .0?
YES
COUNT RETRIES, MODE COUNT
POINTR
H H,.0 GET E E RD55
RESET CRC
M,C H B RD56 B B GET GET TAPEIN ALTRD
SWITCH CRC, POINTER STORE DATA BUMP POINTER SWITCH CRC, POINTER DECREMENT COUNT ADJUST STACK POINTER COUNT STATUS OVERRUN? YES STOP? YES
ROll A H ALTRD
NO
L
RD19 A,5 FR A,l RD8 D,B 0
GET
GREATER THAN 1 BLOCK ERROR
-
.
=1
SAVE COUNT DECREMENT SAVED COUNT
0
INCREMENT SAVED COUNT
RD9 A
~RROR
=¢
(illJl@ cQ)~ ®f©J1@
I
)
po box 6528 denver, colorado 80206 (303) n7-7133
LOC ~13 ~13 ~13 ~13
OBJ 217 22~
222 225
~13·226 ~13 231
~13
233
311 346 ~~4 312 366 321 315 117
LABEL RD1~
~12
~12 ~76 ~~3 3~3 361 ~12
RD11
OP
OPERAND
COMMENT
RET ANI JZ POP CALL MVI JMP
~4H
R052 D REWIND A,3 R08
STOP? NO RETRIES, MODE
L-_C_S_SB_-_9_5_________________________________
ERROR
=3
(~~ ___ O_~_~~O~c __ O~~~O __ O~O~______) po box 6528 denver, colorado 80206 (303) 777-7133
K.
PHI-DECK MAINTENANCE
Recommended Field Maintenance This maintenance schedule consists of recommended maintenance operations to be performed in the field by operating personnel and service technicians. Schedule A consists of cleaning operations that should be performed every ten to twenty hours of operating time. Since the accumulation of dirt and tape oxide is highly dependent upon operating environment and the quality of tape used, the time interval for Schedule A can be varied according to system experience. The Schedule A cleaning operations are simple enough that they can be performed by operating personnel in many systems. The items in Schedule B should be performed by technically skilled personnel.
Required Equipment For Schedule A 1. 2. 3. 4. 5.
Tape head cleaner or pure isopropyl alcohol Rubber drive cleaner Cotton tip wood swabs 1212
e150
****
£116£1
~11202
ee~
e12165
012165 012165
~03
3£12
~12
012277
fl12277 V.:2~77
012302 £112305 e12307
3e~
322 012 315 233 012 07f 001 315 201 ~12 301 311 315 150 012 303 356 012 016 340
e17£1 018£1 019£1
****
0200 0210
****
0220 0230
0240 0250
012312 £112313 012314 012317 £112322 £112324 315 233 £112
0260 0270 0280 0290 0300
012327 0e6 110 013036
£1320
E130:3€
0340 0350
013~36
174 013037 £151 013040 ~12 07~ 013 £1130.3 362 075 013 £11304:6 204
013051 013£151
013£151 001 e13056
013056 013056 003
~310
0330
ST
ORG+1165
JP
RD51
CMDOUT STOP ROUTINE
A,l .1 SECOND DELAY
Be
FR FAST REVERSE CORRECTION RD2 C,0E0H RE~D CMDOUT B,110 14 SECONDS ORG+203E
IMPROVEMENT. A,H
0360 0370 0380
JP JP
HL,RL Z,ID1 p. ID2
.0390
ADD
H
0400 0410
*:(~**
****
MORE SEARCH IMPROVEMENT • • **~
0420 04~0
0440 0450
****
£490 0510 0520 0530
013174 £103 7 :--.
****
''-~~I
*+* ...
0560
0S7e ~ 580 e~90
0t00 0610
ST
ORG+205E
DE
3
ST
ORG+2075
MORE SEARCH IMPROVEMENT. ADD
H
****
****
RLCA ADD
0:)00
013077 30£ 0~~ 013101 303 314 012 £113174 '2113174
0540
****
ORG+2051 ST MORE SEARCH IMPROVEMENT. 1 DE
0470 04se I t2
01317~ e131 7~
ORG+202
JUMP TO STOP. **** STOP JP ORG+127? ST STOP ROUTINE AND FAST REVERSE CORRECTION.
LD ADD
013075
013175 fl13175 013175 013175
ST
****
EACKSPACE SEVEltAL :ELOCKS EI}'ORE CHiCK READ. DB 0e3
CALL LD CALL POP RET FRCOR CALL JP LD RD51 CALL fLD50 LD ST **** SEARCH
0460
eir1
£111001 ORG+62
FIVE SECOND DEL!l fOE rLOCI 0. DB 062
STOP
013075 "'1307~ ?04 ~" 1 ~'I " 7 {\ lc ~ ~ ?
IOU ST
5
JP FReOR ST ORG+2174 LAST OF SEARCH IMPROVEMENf. n:B 3
****
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TWO AND FOUR DRIVE CABINET ASSEMBLY INSTRUCTIONS CASSETTE STORAGE CABINET PARTS LIST NOTE: 1 1 2 1 1 1 4
Parts are subject to change without notice due to supplier availability.
Upper Cover Lower Cover Side Rails Front Dress Panel Front Panel Rear Panel Rubber Furniture Guards
Small parts bag (all cabinets) : 2 4-40xl/2" screws 2 4-40 nuts 12 8-32xl/4" screws 2 8-32xl/2" screws 18 6-32xl/2" screws 18 6-32 nuts 36 pin connector 1
TWO AND FOUR DRIVE CABINET ASSEMBLY INSTRUCTIONS A.
B.
LOWER COVER 1.
Locate the 4 holes nearest the corners. These will be used to mount the rubber feet. In addition, the 2 holes near the front lip will also be used to mount two of the drives. To mount a rubber foot, insert one 6-32xl/2" screw into the foot, then through the bottom of the lower cover. NOTE: The two screws used to mount the front feet are also used to help mount two of the drives and extend up into the cabinet.
2.
Position the drives over the remaining holes, then install the 6-32xl/2" screws through the drive legs and through the bottom cover. Do not tighten at this point.
FRONT DRESS PANEL, REAR PANEL AND SIDE RAILS 1.
Inspect the side rail and note that there is a small extension on each end. One extension is slightly longer than the other. THE END WITH THE LONGEST EXTENSION IS INTENDED TO GO TOWARD THE FRONT OF THE CABINET. After selecting the front end of each rail, attach each rail to the front and rear panels using eight 8-32xl/4" screws. The two outer-most holes on the rear panel are close to the bottom edge.
2.
For two drive models without enclosed controller card and for four drive cabinet models, route the power and control wire cables down the side of the drives and out the round end slots provided in the rear panel.
3.
Install the front/rear panel assembly on the lower cover with drives by setting the assembly down over the drives and into position in the lower cover. Pull excess cable through the rear panel. Screw the rear panel to the lower cover using the lower two holes on the rear panel that line up with the bracket on the lower cover. Attach using two 8-32xl/4" screws, no hex nuts required.
298-050 PHI-CAB DOC
CSCA-O-RO
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po box 6528 denver, colorado 80206 (303) 777-7133
C.
UPPER COVER
1.
Place the upper cover in place over the drives.
This job is made easier
by removing the plastic cassette cover (plastic door) which simply snaps
out of the two hinges. Locate the cover over the drives and adjust the drives to center in the cutouts, then tighten the drive mounting screws. 2.
Install two a-32x1/4" screws through the rear panel at the upper two holes and lock the rear of the upper cover in place.
3.
Install two a-32xl/2" screws through two holes at the front of the cabinet bottom and lock the front of the upper cover in place. Do not over-tighten as these screws will not bottom out automatically. When they are snug, then STOP.
I L-_C_S~ __ -O_-_M______________________________ C~---o-~-~-o~---o-~-o--o--o-------~) po box 6528 denver, colorado 80208 (303) 177-7133
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