| /* i650_defs.h: IBM 650 simulator definitions | |
| Copyright (c) 2018, Roberto Sancho | |
| 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 | |
| ROBERTO SANCHO 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. | |
| */ | |
| #include "sim_defs.h" /* simulator defns */ | |
| /* Simulator stop codes */ | |
| #define STOP_HALT 1 /* HALT */ | |
| #define STOP_IBKPT 2 /* breakpoint */ | |
| #define STOP_UUO 3 /* invalid opcode */ | |
| #define STOP_CARD 4 /* Stop on card reader/punch error (no card in hopper, read/punch failure, no cards, stop pressed on cdr/cdp*/ | |
| #define STOP_PROG 5 /* Programmed stop */ | |
| #define STOP_OV 6 /* Overflow stop */ | |
| #define STOP_ERRO 7 /* Error in opcode execution: BRD in witch position tested not 8 or 9, TLU failure */ | |
| #define STOP_ADDR 8 /* Address stop: Store attempt on addr 800X, address out of drum mem */ | |
| /* Memory */ | |
| #define MAXMEMSIZE (4000) | |
| #define MEMSIZE cpu_unit.capac /* actual memory size */ | |
| #define MEMMASK (MEMSIZE - 1) /* Memory bits */ | |
| #define MEM_ADDR_OK(x) (((uint32) (x)) < MEMSIZE) | |
| extern t_int64 DRUM[MAXMEMSIZE]; | |
| extern int DRUM_NegativeZeroFlag[MAXMEMSIZE]; | |
| extern int WriteDrum(int AR, t_int64 d, int NegZero); | |
| extern int ReadDrum(int AR, t_int64 * d, int * NegZero); | |
| /* digits contants */ | |
| #define D10 (10000000000LL) // ten digits (10 zeroes) | |
| #define D8 (100000000L) // eight digits (8 zeroes) | |
| #define D4 (10000L) // four digits (4 zeroes) | |
| /* Device information block */ | |
| struct dib { | |
| uint8 upc; /* Units per channel */ | |
| uint32 (*cmd)(UNIT *up, uint16 cmd, uint16 dev);/* Issue command. */ | |
| void (*ini)(UNIT *up, t_bool f); | |
| }; | |
| typedef struct dib DIB; | |
| /* Debuging controls */ | |
| #define DEBUG_CMD 0x0000010 /* Show device commands */ | |
| #define DEBUG_DETAIL 0x0000020 /* Show details */ | |
| #define DEBUG_EXP 0x0000040 /* Show error conditions */ | |
| #define DEBUG_DATA 0x0000080 /* Show data details */ | |
| extern DEBTAB dev_debug[]; | |
| extern DEBTAB crd_debug[]; | |
| /* Returns from read/write */ | |
| #define DATA_OK 0 /* Data transfered ok */ | |
| #define TIME_ERROR 1 /* Channel did not transfer last operation */ | |
| #define END_RECORD 2 /* End of record */ | |
| /* Returns from device commands */ | |
| #define SCPE_BUSY (1) /* Device is active */ | |
| #define SCPE_NOCARDS (2) /* No cards to read or ti write */ | |
| /* Global device definitions */ | |
| #ifdef CPANEL | |
| extern DEVICE cp_dev; | |
| #endif | |
| extern DIB cdr_dib; | |
| extern DEVICE cdr_dev; | |
| extern uint32 cdr_cmd(UNIT *, uint16, uint16); | |
| extern UNIT cdr_unit[]; | |
| extern DIB cdp_dib; | |
| extern DEVICE cdp_dev; | |
| extern uint32 cdp_cmd(UNIT *, uint16, uint16); | |
| extern UNIT cdp_unit[]; | |
| /* Device status information stored in u5 */ | |
| #define URCSTA_ERR 0002 /* Error reading record */ | |
| #define URCSTA_BUSY 0010 /* Device is busy */ | |
| #define URCSTA_LOAD 01000 /* Load flag for 533 card reader */ | |
| /* Character codes in IBM 650 as stated in p4 Andree Programming the IBM 650 Mag Drum | |
| Also stated in www.bitsavers.org/pdf/ibm/650/28-4028_FOR_TRANSIT.pdf p37 | |
| */ | |
| #define CHR_BLANK 00 | |
| #define CHR_DOT 18 // card code: 12-3-8 . | |
| #define CHR_RPARENT 19 // 12-4-8 ) | |
| #define CHR_AMPERSAND 20 // 12 + | |
| #define CHR_DOLLAR 28 // 11-3-8 $ | |
| #define CHR_STAR 29 // 11-4-8 * | |
| #define CHR_NEG 30 // 11 - minus sign for negative value | |
| #define CHR_SLASH 31 // 0-1 / | |
| #define CHR_COMMA 38 // 0-3-8 , | |
| #define CHR_LPARENT 39 // 0-4-8 ( | |
| #define CHR_EQUAL 48 // 3-8 = | |
| #define CHR_MINUS 49 // 4-8 - | |
| #define CHR_A 61 | |
| #define CHR_B 62 | |
| #define CHR_C 63 | |
| #define CHR_D 64 | |
| #define CHR_E 65 | |
| #define CHR_F 66 | |
| #define CHR_G 67 | |
| #define CHR_H 68 | |
| #define CHR_I 69 | |
| #define CHR_J 71 | |
| #define CHR_K 72 | |
| #define CHR_L 73 | |
| #define CHR_M 74 | |
| #define CHR_N 75 | |
| #define CHR_O 76 | |
| #define CHR_P 77 | |
| #define CHR_Q 78 | |
| #define CHR_R 79 | |
| #define CHR_S 82 | |
| #define CHR_T 83 | |
| #define CHR_U 84 | |
| #define CHR_V 85 | |
| #define CHR_W 86 | |
| #define CHR_X 87 | |
| #define CHR_Y 88 | |
| #define CHR_Z 89 | |
| #define CHR_0 90 | |
| #define CHR_1 91 | |
| #define CHR_2 92 | |
| #define CHR_3 93 | |
| #define CHR_4 94 | |
| #define CHR_5 95 | |
| #define CHR_6 96 | |
| #define CHR_7 97 | |
| #define CHR_8 98 | |
| #define CHR_9 99 | |
| extern char digits_ascii[40]; | |
| extern char mem_to_ascii[100]; | |
| extern int ascii_to_NN(int ch); | |
| extern uint16 ascii_to_hol[128]; | |
| /* Generic devices common to all */ | |
| extern DEVICE cpu_dev; | |
| extern UNIT cpu_unit; | |
| extern REG cpu_reg[]; | |
| extern int cycle_time; | |
| /* I/O Command codes */ | |
| #define IO_RDS 1 /* Read record */ | |
| #define IO_WRS 4 /* Write one record */ | |
| extern const char *cpu_description(DEVICE *dptr); | |
| /* Opcodes */ | |
| #define OP_AABL 17 // Add absolute to lower accumulator | |
| #define OP_AL 15 // Add to lower accumulator | |
| #define OP_AU 10 // Add to upper accumulator | |
| #define OP_BRNZ 45 // Branch on accumulator non-zero | |
| #define OP_BRMIN 46 // Branch on minus accumulator | |
| #define OP_BRNZU 44 // Branch on non-zero in upper accumulator | |
| #define OP_BROV 47 // Branch on overflow | |
| #define OP_BRD1 91 // Branch on 8 in distributor positions 1-10 | |
| #define OP_BRD2 92 | |
| #define OP_BRD3 93 | |
| #define OP_BRD4 94 | |
| #define OP_BRD5 95 | |
| #define OP_BRD6 96 | |
| #define OP_BRD7 97 | |
| #define OP_BRD8 98 | |
| #define OP_BRD9 99 | |
| #define OP_BRD10 90 | |
| #define OP_DIV 14 // Divide | |
| #define OP_DIVRU 64 // Divide and reset upper accumulator | |
| #define OP_LD 69 // Load distributor | |
| #define OP_MULT 19 // Multiply | |
| #define OP_NOOP 00 // No operation | |
| #define OP_PCH 71 // Punch a card | |
| #define OP_RD 70 // Read a card | |
| #define OP_RAABL 67 // Reset accumulator and add absolute to lower accumulator | |
| #define OP_RAL 65 // Reset accumulator and add to lower accumulator | |
| #define OP_RAU 60 // Reset accumulator and add to upper accumulator | |
| #define OP_RSABL 68 // Reset accumulator and subtract absolute from lower accumulator | |
| #define OP_RSL 66 // Reset accumulator and subtract from lower accumulator | |
| #define OP_RSU 61 // Reset accumulator and subtract from upper accumulator | |
| #define OP_SLT 35 // Shift accumulator left | |
| #define OP_SCT 36 // Shift accumulator left and count | |
| #define OP_SRT 30 // Shift accumulator right | |
| #define OP_SRD 31 // Shift accumulator right and round accumulator | |
| #define OP_STOP 01 // Stop if console switch is set to stop, otherwise continue as a NO-OP | |
| #define OP_STD 24 // Store distributor into memory | |
| #define OP_STDA 22 // Store lower accumulator data address into distributor, then store distributor into memory | |
| #define OP_STIA 23 // Store lower accumulator instruction address into distributor, then store distributor into memory | |
| #define OP_STL 20 // Store lower accumulator into memory | |
| #define OP_STU 21 // Store upper accumulator into memory | |
| #define OP_SABL 18 // Subtract absolute from lower accumulator | |
| #define OP_SL 16 // Subtract from lower accumulator | |
| #define OP_SU 11 // Subtract from upper accumulator | |
| #define OP_TLU 84 // Table lookup | |
| #define NEGZERO_value 0x7fffFFFFffffFFFF | |
| #define AccNegative (((AccNegativeZeroFlag) || (ACC[1]<0) || (ACC[0]<0)) ? 1:0) | |
| #define AbsWord(d) ((d < 0) ? -d:d) | |
| #define printfw(d,negzero) (int32) AbsWord(d/D4), (int32) AbsWord(d%D4), ((d<0) || (negzero)) ? '-':'+' | |
| #define printfd printfw(DIST, DistNegativeZeroFlag) | |
| #define printfa (int32) AbsWord(ACC[1]/D4),(int32) AbsWord(ACC[1]%D4), printfw(AbsWord(ACC[0]), AccNegative) | |
| /* Standard control panel wiring for card read/punch/print */ | |
| #define UNIT_CARD_WIRING ( 0xF00 << UNIT_V_CARD_MODE) | |
| #define WIRING_8WORD ( 0x000 << UNIT_V_CARD_MODE) | |
| #define WIRING_SOAP ( 0x100 << UNIT_V_CARD_MODE) | |
| #define WIRING_IS ( 0x200 << UNIT_V_CARD_MODE) | |
| #define UNIT_CARD_ECHO ( 0x1000 << UNIT_V_CARD_MODE) | |
| #define UNIT_CARD_PRINT ( 0x2000 << UNIT_V_CARD_MODE) | |
| struct card_wirings { | |
| uint32 mode; | |
| const char *name; | |
| }; | |
| /* Decimal helper functions */ | |
| extern int Get_HiDigit(t_int64 d); | |
| extern int Shift_Digits(t_int64 * d, int nDigits); | |
| extern char * word_to_ascii(char * buf, int CharStart, int CharLen, t_int64 d); | |