H316_doc Honeywell H316/H516 H316 Doc
User Manual: Honeywell H316/H516 Simulator ation
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H316 Simulator Usage 01-Dec-2008 COPYRIGHT NOTICE The following copyright notice applies to the SIMH source, binary, and documentation: Original code published in 1993-2008, written by Robert M Supnik Copyright (c) 1993-2008, 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. 1 2 Simulator Files ............................................................................................................. 3 H316/H516 Features.................................................................................................... 3 2.1 CPU ...................................................................................................................... 4 2.2 Programmed I/O Devices ..................................................................................... 5 2.2.1 316/516-50 Paper Tape Reader (PTR) ......................................................... 5 2.2.2 316/516-52 Paper Tape Punch (PTP) ........................................................... 6 2.2.3 316/516-33 Console Teletype (TTY) ............................................................. 7 2.2.4 316/516-12 Real Time Clock (CLK)............................................................... 8 2.3 316/516 Line Printer (LPT).................................................................................... 8 2.4 4400 Fixed Head Disk (FHD)................................................................................ 9 2.5 4100 7-track Magnetic Tape (MT)....................................................................... 10 2.6 4623/4651/4720 Disk Packs (DP)....................................................................... 11 3 Symbolic Display and Input........................................................................................ 13 This memorandum documents the Honeywell H316/H516 simulator. 1 Simulator Files The H316 requires the following files: sim/ scp.h sim_console.h sim_defs.h sim_fio.h sim_rev.h sim_sock.h sim_tape.h sim_timer.h sim_tmxr.h scp.c sim_console.c sim_fio.c sim_sock.c sim_tape.c sim_timer.c sim_tmxr.c sim/h316/ h316_defs.h h316_cpu.c h316_fhd.c h316_lp.c h316_mt.c h316_dp.c h316_stddev.c h316_sys.c 2 H316/H516 Features The Honeywell 316/516 simulator is configured as follows: device names simulates CPU PTR PTP TTY CLK LPT FHD DP MT H316/H516 CPU with 16/32KW memory 316/516-50 paper tape reader 316/516-52 paper tape punch 316/516-33 console terminal 316/516-12 real time clock 316/516 line printer 4400 fixed head disk 4623/4653/4720 disk pack controller with eight drives 4100 seven track magnetic tape with four drives The H316/H516 simulator implements several unique stop conditions: - Decode of an undefined instruction, and STOP_INST is set Reference to an undefined I/O device, and STOP_DEV is set - More than INDMAX indirect references are detected during memory reference address decoding DMA/DMC direction does not agree with I/O device operation A write operation is initiated on a write locked magnetic tape unit (hangs the real system) A disk write overruns the specified record size (destroys the rest of the track on the real system) A disk track has an illegal format The LOAD and DUMP commands are not implemented. 2.1 CPU CPU options include choice of instruction set, memory size, DMC option, and number of DMA channels. SET SET SET SET SET SET SET SET SET SET SET CPU CPU CPU CPU CPU CPU CPU CPU CPU CPU CPU HSA NOHSA 4K 8K 12K 16K 24K 32K DMC NODMC DMA=n high speed arithmetic instructions no high speed arithmetic instructions set memory size = 4K set memory size = 8K set memory size = 12K set memory size = 16K set memory size = 24K set memory size = 32K enable DMC option disable DMC option set number of DMA channels to n (0-4) 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. By default, the HSA and DMC options are enabled, and four DMA channels are configured. The CPU includes special show commands to display the state of the DMA channels: SHOW CPU DMAn show DMA channel n CPU registers include the visible state of the processor as well as the control registers for the interrupt system. name size comments P A B X SC C EXT PME EXT_OFF DP SS1..4 ION INODEF INTREQ DEVRDY DEVENB CHREQ DMAAD[0:3] 15 16 16 16 16 1 1 1 1 1 1 1 1 16 16 16 20 16 program counter A register B register index register shift count carry flag extend flag previous mode extend flag extend off pending flag double precision flag sense switches 1 to 4 interrupts enabled interrupts not deferred interrupt requests device ready flags (read only) device interrupt enable flags (read only) DMA/DMC channel requests DMA channel current address, channels 1 to 4 DMAWC[0:3] DMAEOR[0:3] STOP_INST STOP_DEV INDMAX PCQ[0:63] 15 1 1 1 8 15 WRU 8 DMA channel word count, channels 1 to 4 DMA end of range flag, channels 1 to 4 stop on undefined instruction stop on undefined device indirect address limit PC prior to last JMP, JSB, or interrupt; most recent PC change first interrupt character The CPU can maintain a history of the most recently executed instructions. This is controlled by the SET CPU HISTORY and SHOW CPU HISTORY commands: SET CPU HISTORY SET CPU HISTORY=0 SET CPU HISTORY=n SHOW CPU HISTORY SHOW CPU HISTORY=n clear history buffer disable history enable history, length = n print CPU history print first n entries of CPU history The maximum length for the history is 65,536 entries. 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 can bet set to operate in binary, ASCII, or Unix ASCII mode: SET PTR BINARY SET PTR ASCII SET PTR UASCII binary mode ASCII mode Unix ASCII mode The mode can also be set by a switch setting in the ATTACH command: ATT –B PTRATT –A PTR ATT –U PTR binary mode ASCII mode Unix ASCII mode In ASCII or Unix ASCII mode, all non-zero characters have the high order bit forced on. In Unix ASCII mode, newline is converted to CR, and LF is inserted as the following character. 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 INTREQ READY ENABLE POS TIME 8 1 1 1 32 24 last data item processed device interrupt request device ready device interrupts enabled position in the input file 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 0 report error and stop out of tape end of file 1 0 report error and stop out of tape 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 can bet set to operate in binary, ASCII, or Unix ASCII mode: SET PTP BINARY SET PTP ASCII SET PTP UASCII binary mode ASCII mode Unix ASCII mode The mode can also be set by a switch setting in the ATTACH command: ATT –B PTP ATT –A PTP ATT –U PTP binary mode ASCII mode Unix ASCII mode In ASCII or Unix ASCII mode, all characters are masked to 7b before being written to the output file. In Unix ASCII mode, LF is converted to newline, and CR is discarded. The paper tape punch implements these registers: name size comments BUF INTREQ READY ENABLE POWER POS TIME PWRTIME STOP_IOE 8 1 1 1 1 32 24 24 1 last data item processed device interrupt request device ready device interrupts enabled device powered up position in the output file time from I/O initiation to interrupt time from I/O request to power up stop on I/O error Error handling is as follows: error STOP_IOE processed as not attached 1 0 report error and stop out of tape OS I/O error x report error and stop 2.2.3 316/516-33 Console Teletype (TTY) The console Teletype (TTY) consists of four separate units: TTY0 TTY1 TTY2 TTY3 keyboard printer paper tape reader paper tape punch The keyboard and printer (TTY0, TTY1) can be set to one of four modes, KSR, 7P, 7B, or 8B: mode input characters output characters KSR 7P lower case converted to upper case, high-order bit set high-order bit cleared 7B 8B high-order bit cleared no changes lower case converted to upper case, high-order bit cleared, non-printing characters suppressed high-order bit cleared, non-printing characters suppressed high-order bit cleared no changes The default mode is KSR. The Teletype keyboard reads from the console keyboard, and the printer writes to the simulator console window. The paper tape reader (TTY2) can bet set to operate in binary, ASCII, or Unix ASCII mode: SET TTY2 BINARY SET TTY2 ASCII SET TTY2 UASCII binary mode ASCII mode Unix ASCII mode The mode can also be set by a switch setting in the ATTACH command: ATT –B TTY2 ATT –A TTY2 ATT –U TTY2 binary mode ASCII mode Unix ASCII mode In ASCII or Unix ASCII mode, all non-zero characters have the high order bit forced on. In Unix ASCII mode, newline is converted to CR, and LF is inserted as the following character. The paper tape reader is started by program output of XON or by the command SET TTY2 START. The paper tape reader is stopped by reader input of XOFF or by the command SET TTY2 STOP. The Teletype paper tape punch (TTY3) can bet set to operate in binary, ASCII, or Unix ASCII mode: SET TTY3 BINARY SET TTY3 ASCII SET TTY3 UASCII binary mode ASCII mode Unix ASCII mode The mode can also be set by a switch setting in the ATTACH command: ATT –B TTY3 ATT –A TTY3 ATT –U TTY3 binary mode ASCII mode Unix ASCII mode In ASCII or Unix ASCII mode, all characters are masked to 7b before being written to the output file. In Unix ASCII mode, LF is converted to newline, and CR is discarded. The Teletype paper tape punch is started by program output of TAPE or by the command SET TTY3 START. The punch is stopped by program output of XOFF or by the command SET TTY3 STOP. The TTY implements these registers: name size comments BUF MODE INTREQ READY ENABLE KPOS KTIME TPOS TTIME RPOS PPOS 8 1 1 1 1 32 24 32 24 32 32 last data item processed read/write mode device interrupt request device ready device interrupts enabled number of keyboard characters input keyboard polling interval number of printer characters output time from I/O initiation to interrupt current reader character position current punch character position 2.2.4 316/516-12 Real Time Clock (CLK) The real time clock (CLK) frequency can be adjusted as follows: SET CLK 60HZ SET CLK 50HZ set frequency to 60Hz set frequency to 50Hz The default is 60Hz. The clock implements these registers: name size comments INTREQ READY ENABLE TIME 1 1 1 24 device interrupt request device ready device interrupts enabled clock interval The real-time clock autocalibrates; the clock interval is adjusted up or down so that the clock tracks actual elapsed time. 2.3 316/516 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 can be connected to the IO bus, a DMC channel, or a DMA channel: SET LPT IOBUS SET LPT DMC=n SET LPT DMA=n connect to IO bus connect to DMC channel n (1-16) connect to DMA channel n (1 to 4) By default, the line printer is connected to the IO bus. The line printer implements these registers: name size comments WDPOS DRPOS CRPOS PRDN RDY EOR DMA INTREQ ENABLE SVCST SVCCH BUF POS XTIME ETIME PTIME STOP_IOE 6 6 1 1 1 1 1 1 1 2 2 8 32 24 24 24 1 word position in current scan drum position carriage position print done flag ready flag (DMA/DMC) end of range flag transfer using DMA/DMC device interrupt request device interrupt enable service state service channel buffer position in the output file delay between transfers delay at end of scan delay for shuttle/line advance stop on I/O error Error handling is as follows: error STOP_IOE processed as not attached 1 0 report error and stop out of paper OS I/O error x report error and stop 2.4 4400 Fixed Head Disk (FHD) Fixed head disk options include the ability to set the number of surfaces to a fixed value between 1 and 16, or to autosize the number of surfaces from the attached file: SET SET : SET SET FHD 1S FHD 2S one surface (98K) two platters (196K) FHD 16S FHD AUTOSIZE sixteen surfaces (1568K) autosized on ATTACH The default is one surface. The fixed head disk can be connected to the IO bus, a DMC channel, or a DMA channel: SET FHD IOBUS SET FHD DMC=n SET FHD DMA=n connect to IO bus connect to DMC channel n (1-16) connect to DMA channel n (1 to 4) By default, the fixed head disk is connected to the IO bus. The fixed head disk implements these registers: name size comments CW1 CW2 BUF BUSY RDY DTE ACE EOR DMA CSUM INTREQ ENABLE TIME STOP_IOE 16 16 16 1 1 1 1 1 1 1 1 1 24 1 control word 1 (read write, surface, track) control word 2 (character address) data buffer controller busy flag transfer ready flag data transfer error flag access error flag (DMA/DMC) end of range transfer using DMA/DMC transfer parity checksum device interrupt request device interrupt enable delay between words stop on I/O error Error handling is as follows: error STOP_IOE not attached 1 0 processed as report error and stop disk not ready Fixed head disk data files are buffered in memory; therefore, end of file and OS I/O errors cannot occur. 2.5 4100 7-track Magnetic Tape (MT) Magnetic tape options include the ability to make units write enabled or write locked. SET MTn LOCKED SET MTn WRITEENABLED set unit n write locked set unit n write enabled Magnetic tape units can be set to a specific reel capacity in MB, or to unlimited capacity: SET MTn CAPAC=m SHOW MTn CAPAC set unit n capacity to m MB (0 = unlimited) show unit n capacity in MB Units can also be set ENABLED or DISABLED. The magnetic tape controller can be connected to the IO bus, a DMC channel, or a DMA channel: SET MT IOBUS SET MT DMC=n SET MT DMA=n connect to IO bus connect to DMC channel n (1-16) connect to DMA channel n (1 to 4) By default, the magnetic tape controller is connected to the IO bus. The magnetic tape controller implements these registers: name size comments BUF USEL BUSY RDY ERR 16 2 1 1 1 data buffer unit select controller busy flag transfer ready flag error flag EOF EOR DMA MDIRQ INTREQ ENABLE DBUF[0:65535] BPTR BMAX CTIME XTIME POS[0:3] STOP_IOE 1 1 1 1 1 1 8 17 17 24 24 32 1 end of file flag (DMA/DMC) end of range transfer using DMA/DMC motion done interrupt request device interrupt request device interrupt enable transfer buffer transfer buffer pointer transfer size (reads) start/stop time delay between words position, units 0 to 3 stop on I/O error Error handling is as follows: error processed as not attached tape not ready; if STOP_IOE, stop end of file bad tape OS I/O error parity error; if STOP_IOE, stop 2.6 4623/4651/4720 Disk Packs (DP) The disk controller can be configured as a 4623, supporting 10-surface disk packs; a 4651, supporting 2surface disk packs; or a 4720, supporting 20-surface disk packs: SET DP 4623 SET DP 4651 SET DP 4720 controller is 4623 controller is 4651 controller is 4720 The default is 4651. All disk packs on the controller must be of the same type. Individual units can be write enabled or write locked: SET DPn LOCKED SET DPn WRITEENABLED set unit n write locked set unit n write enabled Units can be also be set ENABLED or DISABLED. The disk pack controller can be connected to a DMC channel or a DMA channel; it cannot be connected to the IO bus: SET DP DMC=n SET DP DMA=n connect to DMC channel n (1-16) connect to DMA channel n (1 to 4) The disk pack controller supports variable track formatting. Each track can contain between 1 and 103 records, with a minimum size of 1 word and a maximum size of 1893 words. Record addresses are unconstrained. The simulator provides a command to perform a simple, fixed record size format of a new disk: SET DPn FORMAT=k SET -R DPn FORMAT=k format unit n with k words per record format unit n with k records per track Record addresses can either be geometric (cylinder/track/sector) or simple sequential starting from 0: SET DPn FORMAT=k SET -S DPn FORMAT=k format with geometric record addresses format with sequential record addresses Geometric address have the cylinder number in bits<1:8>, the head number in bits<9:13>, and the sector number in bits <14:16>. A summary of the current format, and its validity, can be obtained with the command: SHOW DPn FORMAT display format of unit n To accommodate the variable formatting, each track is allocated 2048 words in the data file. A record consists of a three word header, the data, and a five word trailer: word word word word word word 0 1 2 3 3+n-1 3+n..7+n record length in words, not including header/trailer record address number of extension words used (0-4) start of data record end of data record record trailer: up to four extension words, plus checksum A record can "grow" by up to four words without disrupting the track formatting; writing more than four extra words destroys the formatting of the rest of the track and causes a simulator error. The disk pack controller implements these registers: name size comments STA BUF FNC CW1 CW2 CSUM BUSY RDY EOR DEFINT INTREQ ENABLE TBUF[0:2047] RPTR WPTR BCTR STIME XTIME BTIME 16 16 4 16 16 16 1 1 1 1 1 1 16 11 11 15 24 24 24 status data buffer controller function command word 1 command word 2 record checksum controller busy transfer ready (DMA/DMC) end of range seek deferred interrupt pending interrupt request interrupt enable track buffer pointer to start of record in track buffer pointer to current word in record bit counter for formatting seek time, per cylinder transfer time, per word controller busy time Error handling is as follows: error processed as not attached pack off line; if STOP_IOE, stop end of file ignored OS I/O error data error; if STOP_IOE, stop 3 Symbolic Display and Input The H316/H516 simulator implements symbolic display and input. Display is controlled by command line switches: -a -c -m display as ASCII character display as two packed ASCII characters display instruction mnemonics Input parsing is controlled by the first character typed in or by command line switches: ' or -a " or -c alphabetic numeric ASCII character two packed ASCII characters instruction mnemonic 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, 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.
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