| To: Users | |
| From: Bob Supnik | |
| Subj: H316 Simulator Usage | |
| Date: 15-Jun-2002 | |
| COPYRIGHT NOTICE | |
| The following copyright notice applies to both the SIMH source and binary: | |
| Original code published in 1993-2002, written by Robert M Supnik | |
| Copyright (c) 1993-2002, Robert M Supnik | |
| Permission is hereby granted, free of charge, to any person obtaining a | |
| copy of this software and associated documentation files (the "Software"), | |
| to deal in the Software without restriction, including without limitation | |
| the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
| and/or sell copies of the Software, and to permit persons to whom the | |
| Software is furnished to do so, subject to the following conditions: | |
| The above copyright notice and this permission notice shall be included in | |
| all copies or substantial portions of the Software. | |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
| ROBERT M SUPNIK BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER | |
| IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
| CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
| Except as contained in this notice, the name of Robert M Supnik shall not | |
| be used in advertising or otherwise to promote the sale, use or other dealings | |
| in this Software without prior written authorization from Robert M Supnik. | |
| This memorandum documents Honeywell 316/516 simulator. | |
| 1. Simulator Files | |
| The H316 requires the following files: | |
| sim/ sim_defs.h | |
| scp.c | |
| scp_tty.c | |
| sim_rev.c | |
| sim/h316/ h316_defs.h | |
| h316_cpu.c | |
| h316_lp.c | |
| h316_stddev.c | |
| h316_cpu.c | |
| 2. H316/H516 Features | |
| The Honeywell 316/516 simulator is configured as follows: | |
| device simulates | |
| name(s) | |
| CPU H316/H516 CPU with 16/32KW memory | |
| PTR 316/516-50 paper tape reader | |
| PTP 316/516-52 paper tape punch | |
| TTY 316/516-33 console terminal | |
| CLK 316/516-12 real time clock | |
| LPT 316/516 line printer | |
| The H316/H516 simulator implements several unique stop conditions: | |
| - decode of an undefined instruction, and STOP_INST is et | |
| - reference to an undefined I/O device, and STOP_DEV is set | |
| - more than INDMAX indirect references are detected during | |
| memory reference address decoding | |
| The H316/H516 loader is not implemented. | |
| 2.1 CPU | |
| CPU options include choice of instruction set and memory size. | |
| SET CPU HSA high speed arithmetic instructions | |
| SET CPU NOHSA no high speed arithmetic instructions | |
| SET CPU 4K set memory size = 4K | |
| SET CPU 8K set memory size = 8K | |
| SET CPU 12K set memory size = 12K | |
| SET CPU 16K set memory size = 16K | |
| SET CPU 24K set memory size = 24K | |
| SET CPU 32K set memory size = 32K | |
| If memory size is being reduced, and the memory being truncated contains | |
| non-zero data, the simulator asks for confirmation. Data in the truncated | |
| portion of memory is lost. Initial memory size is 32K. | |
| CPU registers include the visible state of the processor as well as the | |
| control registers for the interrupt system. | |
| name size comments | |
| P 15 program counter | |
| A 16 A register | |
| B 16 B register | |
| X 16 index register | |
| SC 16 shift count | |
| C 1 carry flag | |
| EXT 1 extend flag | |
| PME 1 previous mode extend flag | |
| EXT_OFF 1 extend off pending flag | |
| DP 1 double precision flag | |
| SS1..4 1 sense switches 1..4 | |
| ION 1 interrupts enabled | |
| INODEF 1 interrupts not deferred | |
| INTREQ 16 interrupt requests | |
| DEVRDY 16 device ready flags (read only) | |
| DEVENB 16 device interrupt enable flags (read only) | |
| STOP_INST 1 stop on undefined instruction | |
| STOP_DEV 1 stop on undefined device | |
| INDMAX 1 indirect address limit | |
| PCQ[0:63] 15 PC prior to last JMP, JSB, or interrupt; | |
| most recent PC change first | |
| WRU 8 interrupt character | |
| 2.2 Programmed I/O Devices | |
| 2.2.1 316/516-50 Paper Tape Reader (PTR) | |
| The paper tape reader (PTR) reads data from a disk file. The POS | |
| register specifies the number of the next data item to be read. | |
| Thus, by changing POS, the user can backspace or advance the reader. | |
| The paper tape reader supports the BOOT command. BOOT PTR copies the | |
| absolute binary loader into memory and starts it running. | |
| The paper tape reader implements these registers: | |
| name size comments | |
| BUF 8 last data item processed | |
| INTREQ 1 device interrupt request | |
| READY 1 device ready | |
| ENABLE 1 device interrupts enabled | |
| POS 32 position in the input or output file | |
| TIME 24 time from I/O initiation to interrupt | |
| STOP_IOE 1 stop on I/O error | |
| Error handling is as follows: | |
| error STOP_IOE processed as | |
| not attached 1 report error and stop | |
| 0 out of tape | |
| end of file 1 report error and stop | |
| 0 out of tape or paper | |
| OS I/O error x report error and stop | |
| 2.2.2 316/516-52 Paper Tape Punch (PTP) | |
| The paper tape punch (PTP) writes data to a disk file. The POS | |
| register specifies the number of the next data item to be written. | |
| Thus, by changing POS, the user can backspace or advance the punch. | |
| The paper tape punch implements these registers: | |
| name size comments | |
| BUF 8 last data item processed | |
| INTREQ 1 device interrupt request | |
| READY 1 device ready | |
| ENABLE 1 device interrupts enabled | |
| POWER 1 device powered up | |
| POS 32 position in the input or output file | |
| TIME 24 time from I/O initiation to interrupt | |
| PWRTIME 24 time from I/O request to power up | |
| STOP_IOE 1 stop on I/O error | |
| Error handling is as follows: | |
| error STOP_IOE processed as | |
| not attached 1 report error and stop | |
| 0 out of tape | |
| OS I/O error x report error and stop | |
| 2.2.3 316/516-33 Console Teletype (TTY) | |
| The terminal reads from the console keyboard and writes to the | |
| simulator console window. The terminal has one option, UC; when | |
| set, the terminal automatically converts lower case input to upper | |
| case. This is on by default. | |
| The terminal implements these registers: | |
| name size comments | |
| BUF 8 last data item processed | |
| MODE 1 read/write mode | |
| INTREQ 1 device interrupt request | |
| READY 1 device ready | |
| ENABLE 1 device interrupts enabled | |
| KPOS 32 number of characters input | |
| KTIME 24 keyboard polling interval | |
| TPOS 32 number of characters output | |
| TTIME 24 time from I/O initiation to interrupt | |
| 2.2.4 316/516-12 Real Time Clock (CLK) | |
| The real time clock (CLK) implements these registers: | |
| name size comments | |
| INTREQ 1 device interrupt request | |
| READY 1 device ready | |
| ENABLE 1 device interrupts enabled | |
| TIME 24 clock interval | |
| The real-time clock autocalibrates; the clock interval is adjusted up or | |
| down so that the clock tracks actual elapsed time. | |
| 2.2.5 316/5116 Line Printer (LPT) | |
| The line printer (LPT) writes data to a disk file. The POS register | |
| specifies the number of the next data item to be written. Thus, | |
| by changing POS, the user can backspace or advance the printer. | |
| The line printer implements these registers: | |
| name size comments | |
| WDPOS 6 word position in current scan | |
| DRPOS 6 drum position | |
| CRPOS 1 carriage position | |
| XFER 1 transfer ready flag | |
| PRDN 1 print done flag | |
| INTREQ 1 device interrupt request | |
| ENABLE 1 device interrupt enable | |
| SVCST 2 service state | |
| SVCCH 2 service channel | |
| BUF 8 buffer | |
| POS 32 number of characters output | |
| XTIME 24 delay between transfers | |
| ETIME 24 delay at end of scan | |
| PTIME 24 delay for shuttle/line advance | |
| STOP_IOE 1 stop on I/O error | |
| Error handling is as follows: | |
| error STOP_IOE processed as | |
| not attached 1 report error and stop | |
| 0 out of paper | |
| OS I/O error x report error and stop | |
| 2.3 Symbolic Display and Input | |
| The H316/H516 simulator implements symbolic display and input. Display is | |
| controlled by command line switches: | |
| -a display as ASCII character | |
| -c display as two character string | |
| -m display instruction mnemonics | |
| Input parsing is controlled by the first character typed in or by command | |
| line switches: | |
| ' or -a ASCII character | |
| " or -c two character sixbit string | |
| alphabetic instruction mnemonic | |
| numeric octal number | |
| Instruction input uses standard H316/H516 assembler syntax. There are six | |
| instruction classes: memory reference, I/O, control, shift, skip, and | |
| operate. | |
| Memory reference instructions have the format | |
| memref{*} {C/Z} address{,1} | |
| where * signifies indirect, C a current sector reference, Z a sector zero | |
| reference, and 1 indexed. The address is an octal number in the range 0 - | |
| 077777; if C or Z is specified, the address is a page offset in the range | |
| 0 - 0777. Normally, C is not needed; the simulator figures out from the | |
| address what mode to use. However, when referencing memory outside the CPU | |
| (eg, disks), there is no valid PC, and C must be used to specify current | |
| sector addressing. | |
| I/O instructions have the format | |
| io pulse+device | |
| The pulse+device is an octal number in the range 0 - 01777. | |
| Control and operate instructions consist of a single opcode | |
| opcode | |
| Shift instructions have the format | |
| shift n | |
| where n is an octal number in the range 0-77. | |
| Skip instructions have the format | |
| sub-op sub-op sub-op... | |
| The simulator checks that the combination of sub-opcodes is legal. |