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/bintools/format_tables.cpp
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/**************************** format_tables.cpp ***************************
* Author: Agner Fog
* date created: 2018-02-18
* Last modified: 2021-06-30
* Version: 1.11
* Project: Binary tools for ForwardCom instruction set
* Description:
* Format tables used by emulator, assembler, and disassembler
*
* Copyright 2018-2021 GN1 General Public License http://www.gnu.org/licenses
*****************************************************************************/
 
#include "stdafx.h"
 
// formatList is a list of instruction formats. All format-dependent code should preferably rely on this list.
// The list contains all details about each instruction format.
// This is used by both the assembler, disassembler, and emulator.
// See definition of structure SFormat in disassem.h.
 
// A lookup in formatList uses a nested table lookup as follows:
// il.mode.M is used as index into formatI. The indexes have constants FX000, etc.
// formatI contains an index into formatJ and a criterion for division into subgroups.
// formatJ contains an index into formatList or an index into formatJ if further subdivision is needed.
 
// Indexes into formatList:
const int FX000 = 0;
const int FX010 = FX000 + 1;
const int FX020 = FX010 + 1;
const int FX030 = FX020 + 1;
const int FX040 = FX030 + 1;
const int FX050 = FX040 + 1;
const int FX060 = FX050 + 1;
const int FX070 = FX060 + 1;
const int FX080 = FX070 + 1;
const int FX090 = FX080 + 1;
const int FX100 = FX090 + 1;
const int FX110 = FX100 + 1;
const int FX120 = FX110 + 1;
const int FX130 = FX120 + 1;
const int FX141 = FX130 + 1;
const int FX142 = FX141 + 1;
const int FX143 = FX142 + 1;
const int FX144 = FX143 + 1;
const int FX150 = FX144 + 1;
const int FX160 = FX150 + 1;
const int FX161 = FX160 + 1;
const int FX162 = FX161 + 1;
const int FX163 = FX162 + 1;
const int FX170 = FX163 + 1;
const int FX171 = FX170 + 1;
const int FX172 = FX171 + 1;
const int FX173 = FX172 + 1;
const int FX174 = FX173 + 1;
const int FX175 = FX174 + 1;
const int FX17A = FX175 + 1;
const int FX180 = FX17A + 1;
const int FX200 = FX180 + 1;
const int FX201 = FX200 + 1;
const int FX202 = FX201 + 1;
const int FX203 = FX202 + 1;
const int FX205 = FX203 + 1;
const int FX206 = FX205 + 1;
const int FX207 = FX206 + 1;
const int FX210 = FX207 + 1;
const int FX220 = FX210 + 1;
const int FX221 = FX220 + 1;
const int FX222 = FX221 + 1;
const int FX223 = FX222 + 1;
const int FX224 = FX223 + 1;
const int FX225 = FX224 + 1;
const int FX226 = FX225 + 1;
const int FX227 = FX226 + 1;
const int FX230 = FX227 + 1;
const int FX240 = FX230 + 1;
const int FX250 = FX240 + 1;
const int FX251 = FX250 + 1;
const int FX251X= FX251 + 1;
const int FX252 = FX251X+ 1;
const int FX252X= FX252 + 1;
const int FX253 = FX252X+ 1;
const int FX254 = FX253 + 1;
const int FX254X= FX254 + 1;
const int FX255 = FX254X+ 1;
const int FX255X= FX255 + 1;
const int FX256 = FX255X+ 1; // unused
const int FX257 = FX256 + 1;
const int FX258 = FX257 + 1;
const int FX259 = FX258 + 1;
const int FX25A = FX259 + 1;
const int FX260 = FX25A + 1;
const int FX270 = FX260 + 1;
const int FX280 = FX270 + 1;
const int FX290 = FX280 + 1;
const int FX291 = FX290 + 1;
const int FX300 = FX291 + 1;
const int FX301 = FX300 + 1;
const int FX302 = FX301 + 1;
const int FX303 = FX302 + 1;
const int FX305 = FX303 + 1;
const int FX307 = FX305 + 1;
const int FX310 = FX307 + 1;
const int FX311 = FX310 + 1;
const int FX311X= FX311 + 1;
const int FX312 = FX311X+ 1;
const int FX313 = FX312 + 1;
const int FX318 = FX313 + 1;
const int FX320 = FX318 + 1;
const int FX321 = FX320 + 1;
const int FX322 = FX321 + 1;
const int FX323 = FX322 + 1;
const int FX325 = FX323 + 1;
const int FX327 = FX325 + 1;
const int FX330 = FX327 + 1;
const int FX380 = FX330 + 1;
const int FXEND = FX380 + 1;
 
// Indexes into formatJ:
const int FJ140 = 0;
const int FJ160 = FJ140 + 8;
const int FJ167 = FJ160 + 8;
const int FJ170 = FJ167 + 8;
const int FJ171 = FJ170 + 8;
const int FJ172 = FJ171 + 8;
const int FJ174 = FJ172 + 8;
const int FJ200 = FJ174 + 2;
const int FJ220 = FJ200 + 8;
const int FJ25_ = FJ220 + 8;
const int FJ25J = FJ25_ + 8;
const int FJ250 = FJ25J + 8;
const int FJ251 = FJ250 + 8;
const int FJ252 = FJ251 + 8;
const int FJ254 = FJ252 + 8;
const int FJ254B= FJ254 + 8;
const int FJ255 = FJ254B+ 8;
const int FJ290 = FJ255 + 8;
const int FJ300 = FJ290 + 8;
const int FJ31_ = FJ300 + 8;
const int FJ31J = FJ31_ + 8;
const int FJ311 = FJ31J + 8;
const int FJ320 = FJ311 + 8;
const int FJEND = FJ320 + 8;
 
 
// First list in nested lookup lists. Index is il.mode.M
// Each record contains: criterion and index for next table
// Criterion for lookup into next table: 0 = format table.
// 1: mode2, 2: op1 / 8, 3: op1 % 8, 4: IM1 % 64 / 8, 5: IM1 % 8,
// 6: IM12 == 0xFFFF
 
SFormatIndex formatI[] = {
{0, FX000}, {0, FX080}, // 0.0, 0.8
{0, FX010}, {0, FX090}, // 0.1, 0.9
{0, FX020}, {0, FX020}, // 0.2
{0, FX030}, {0, FX030}, // 0.3
{0, FX040}, {0, FX040}, // 0.4
{0, FX050}, {0, FX050}, // 0.5
{0, FX060}, {0, FX060}, // 0.6
{0, FX070}, {0, FX070}, // 0.7
{0, FX100}, {0, FX180}, // 1.0, 1.8
{0, FX110}, {0, FX110}, // 1.1 // no 1.9
{0, FX120}, {0, FX120}, // 1.2
 
{0, FX130}, {0, FX130}, // 1.3
{2, FJ140}, {2, FJ140}, // 1.4 subdivided by op1 / 8
{0, FX150}, {0, FX150}, // 1.5
{2, FJ160}, {2, FJ160}, // 1.6 subdivided by op1 / 8
{2, FJ170}, {2, FJ170}, // 1.7 subdivided by op1 / 8
 
{1, FJ200}, {0, FX280}, // 2.0 subdivided by mode2, 2.8
{0, FX210}, {2, FJ290}, // 2.1, 2.9 subdivided by op1 / 8
{1, FJ220}, {1, FJ220}, // 2.2
{0, FX230}, {0, FX230}, // 2.3
{0, FX240}, {0, FX240}, // 2.4
{2, FJ25_}, {2, FJ25_}, // 2.5, subdivided by op1 / 8
{0, FX260}, {0, FX260}, // 2.6
{2, FX270}, {2, FX270}, // 2.7
{1, FJ300}, {0, FX380}, // 3.0, subdivided by mode2, 3.8
{2, FJ31_}, {2, FJ31_}, // 3.1, subdivided by op1 / 8, there is no format 3.9
{1, FJ320}, {1, FJ320}, // 3.2, subdivided by mode2
{0, FX330}, {0, FX330}, // 3.3
{0, FX380}, {0, FX380}, // reserved for longer instructions
{0, FX380}, {0, FX380}, //
{0, FX380}, {0, FX380}, //
{0, FX380}, {0, FX380} //
};
 
 
// Next level of nested tables.
// Do not add or delete lines here without updating the index constants FJ140 etc. above
 
SFormatIndex formatJ[FJEND] = {
// FJ140: subdivision of format 1.4 by by op1 / 8
{0, FX141}, // 141: 0 - 7
{0, FX142}, {0, FX142}, {0, FX142}, // 142: 8 - 31
{0, FX143}, // 143: 32 - 39
{0, FX144}, {0, FX144}, // 144: 40 - 55
{0, FX144}, // 144: 56 - 63
 
// FJ160: subdivision of format 1.6 by by op1 / 8
{0, FX160}, {0, FX160}, {0, FX160}, {0, FX160}, {0, FX160}, {0, FX160}, {0, FX160}, // 160: 0 - 55
{3, FJ167}, // 161-163: 56-63
 
// FJ167: subdivision of format 1.6:7 by by op1 % 8
{0, FX161}, {0, FX161}, {0, FX161}, {0, FX161}, // 161: 56 - 59
{0, FX162}, {0, FX162}, // 162: 60 - 61
{0, FX163}, {0, FX163}, // 163: 62 - 63
 
// FJ170: subdivision of format 1.7 by by op1 / 8
{0, FX170}, {0, FX170}, // 150: 0 - 15 1.7D
{0, FX171}, {0, FX171}, {0, FX171}, {0, FX171}, // 151: 16 - 47 1.7C
{3, FJ171}, {3, FJ172}, // FJ171, FJ172: subdivision by op1 % 8
 
// FJ171: subdivision of format 1.7:6 by by op1 % 8
{0, FX171}, {0, FX171}, {0, FX171}, {0, FX171}, // 172: 48 - 51
{0, FX17A}, {0, FX17A}, // 17A: 52 - 53
{0, FX171}, {0, FX171}, // 172: 54 - 55
 
// FJ172: subdivision of format 1.7:7 by by op1 % 8
{0, FX172}, {0, FX172}, {0, FX172}, {0, FX172}, // 152: 56 - 59
{0, FX173}, {0, FX173}, {0, FX173}, // 153: 60 - 62
{8, FJ174}, // 154: 63
 
// FJ174: subdivision of format 1.7:63 by by IM12 == 0xFFFF
{0, FX174}, {0, FX175}, // 154: 63, trap / filler
 
// FJ200: 2.0 subdivided by mode2
{0, FX200}, {0, FX201}, {0, FX202}, {0, FX203}, // 2.0.0 - 2.0.3
{0, FX200}, {0, FX205}, {0, FX206}, {0, FX207}, // 2.0.6 - 2.0.7
 
// FJ220: 2.2 subdivided by mode2
{0, FX220}, {0, FX221}, {0, FX222}, {0, FX223}, // 2.2.0 - 2.2.3
{0, FX224}, {0, FX225}, {0, FX226}, {0, FX227}, // 2.2.4 - 2.2.7
 
// FJ25_: subdivision of format 2.5 by op1 / 8
{3, FJ25J}, {0, FX258}, {0, FX259}, {0, FX25A}, // jump, 2.5.8 - ...
{0, FX25A}, {0, FX25A}, {0, FX25A}, {0, FX25A},
// FJ25J: subdivision of format 2.5 jump instructions by op1 % 8
{4, FJ250}, {4, FJ251}, {4, FJ252}, {0, FX253},
{4, FJ254}, {4, FJ255}, {0, FX256}, {0, FX257},
// FJ250: subdivision of format 2.5.0 jump instructions by opj / 8
{0, FX250}, {0, FX250}, {0, FX250}, {0, FX250},
{0, FX250}, {0, FX250}, {0, FX250}, {0, FX250},
// FJ251: subdivision of format 2.5.1 jump instructions by opj / 8
{0, FX251}, {0, FX251}, {0, FX251}, {0, FX251},
{0, FX251}, {0, FX251}, {0, FX251}, {0, FX251X},
// FJ252: subdivision of format 2.5.2 jump instructions by opj / 8
{0, FX252}, {0, FX252}, {0, FX252}, {0, FX252},
{0, FX252}, {0, FX252}, {0, FX252}, {0, FX252X},
// FJ254: subdivision of format 2.5.4 jump instructions by opj / 8
{0, FX254}, {0, FX254}, {0, FX254}, {0, FX254}, // opj 0 - 31
{0, FX254}, {0, FX254}, {5, FJ254B},{0, FX254}, // opj 32 - 63
// FJ254B: subdivision of format 2.5.4:6 by by opj % 8
{0, FX254}, {0, FX254}, {0, FX254}, {0, FX254}, // 254: 48 - 51
{0, FX254X},{0, FX254X}, // 254: 52 - 53
{0, FX254}, {0, FX254}, // 254: 54 - 55
// FJ255: subdivision of format 2.5.5 jump instructions by opj / 8
{0, FX255}, {0, FX255}, {0, FX255}, {0, FX255},
{0, FX255}, {0, FX255}, {0, FX255}, {0, FX255X},
// FJ290: subdivision of format 2.9 by by op1 / 8
{0, FX290}, {0, FX290}, {0, FX290}, {0, FX290}, // 2.9.0
{0, FX291}, {0, FX291}, {0, FX291}, {0, FX291}, // 2.9.1
 
// FJ300: 3.0 subdivided by mode2
{0, FX300}, {0, FX301}, {0, FX302}, {0, FX303}, // 3.0.0 - 3.0.3
{0, FX300}, {0, FX305}, {0, FX300}, {0, FX307}, // 3.0.4 - 3.0.7
 
// FJ31_: subdivision of format 3.1 instructions by op1 / 8
{3, FJ31J}, {0, FX318}, {0, FX318}, {0, FX318},
{0, FX318}, {0, FX318}, {0, FX318}, {0, FX318},
 
// FJ31J: subdivision of format 3.1.0-8 jump instructions by op1 % 8
{0, FX310}, {4, FJ311}, {0, FX312}, {0, FX313},
{0, FX310}, {0, FX310}, {0, FX310}, {0, FX310},
 
// FJ311 subdivision of format 3.1.1 instructions by opj / 8
{0, FX311}, {0, FX311}, {0, FX311}, {0, FX311},
{0, FX311}, {0, FX311}, {0, FX311}, {0, FX311X},
 
// FJ320: 3.2 subdivided by mode2
{0, FX320}, {0, FX321}, {0, FX322}, {0, FX323}, // 3.2.0 - 3.2.3
{0, FX320}, {0, FX325}, {0, FX320}, {0, FX327} // 3.2.4 - 3.2.7
};
 
 
// Definition of bit fields in all formats. The members of SFormat are defined in disassem.h.
// Do not add or delete lines in formatList without updating the index constants FX000 etc. above.
 
const SFormat formatList[FXEND] = {
// form cat tmpl opav ot jump addr imm v mem scl fi xt
{0x000, 3, 0xA, 0xB0, 0x00, 0, 0, 0, 0, 0, 0, 0, 0, 0x00, 0, 0, 1},
{0x010, 3, 0xB, 0xA1, 0x00, 0, 0, 0, 0, 1, 0, 0, 0, 0x00, 0, 1, 1},
{0x020, 3, 0xA, 0xB0, 0x00, 0, 0, 0, 0, 0, 0, 0, 1, 0x00, 0, 2, 1},
{0x030, 3, 0xB, 0xA1, 0x00, 0, 0, 0, 0, 1, 0, 0, 1, 0x00, 0, 3, 1},
{0x040, 3, 0xA, 0x82, 0x00, 0, 0, 0, 0, 0, 0, 0, 3, 0x02, 0, 4, 1},
{0x050, 3, 0xA, 0x82, 0x00, 0, 0, 0, 0, 0, 0, 0, 3, 0x06, 4, 5, 1},
{0x060, 3, 0xA, 0x82, 0x00, 0, 0, 0, 0, 0, 0, 0, 1, 0x06, 2, 6, 1},
{0x070, 3, 0xB, 0x82, 0x00, 0, 0, 1, 0, 0, 0, 0, 1, 0x12, 1, 7, 1},
{0x080, 3, 0xA, 0x82, 0x00, 0, 0, 0, 0, 0, 0, 0, 0, 0x06, 2, 8, 1},
{0x090, 3, 0xB, 0x82, 0x00, 0, 0, 1, 0, 0, 0, 0, 0, 0x12, 1, 9, 1},
 
// FX100
{0x100, 1, 0xA, 0xB0, 0x00, 0, 0, 0, 0, 0, 0, 0, 0, 0x00, 0, 0, 4}, // Format 1.0 A
{0x110, 1, 0xC, 0x81, 0x32, 0, 0, 0, 0, 2, 0, 0, 0, 0x00, 0, 0, 5}, // Format 1.1 C
{0x120, 1, 0xA, 0xB0, 0x00, 0, 0, 0, 0, 0, 0, 0, 1, 0x00, 0, 0, 6}, // Format 1.2 A
{0x130, 1, 0xB, 0xA1, 0x00, 0, 0, 0, 0, 1, 0, 0, 1, 0x00, 0, 0, 7}, // Format 1.3 B
{0x141, 1, 0xC, 0x81, 0x11, 0, 0, 0, 0, 2, 0, 0, 1, 0x00, 0, 0, 8}, // Format 1.4 C, in16. op1 = 0-7
{0x142, 1, 0xC, 0x81, 0x32, 0, 0, 0, 0, 2, 0, 0, 1, 0x00, 0, 0, 8}, // Format 1.4 C, int32/int64. op1 = 8-31
{0x143, 1, 0xC, 0x81, 0x35, 0, 0, 0, 0, 2, 0, 0, 1, 0x00, 0, 0, 8}, // Format 1.4 C, float/double. op1 = 32-39
{0x144, 1, 0xC, 0x81, 0x11, 0, 0, 0, 0, 2, 0, 0, 1, 0x00, 0, 0, 8}, // Format 1.4 C, half. op1 = 40-63
{0x150, 1, 0xB, 0xA1, 0x00, 0, 0, 0, 0, 1, 0, 0, 1, 0x00, 0, 0, 8}, // Format 1.5 B. op1 = 0-63
 
{0x160, 4, 0xB, 0xA0, 0x00, 1, 0, 0, 0, 0, 0, 0, 0x10, 0x00, 0, 0, 2}, // Format 1.6 jump. op1 = 0-55
{0x161, 4, 0xB, 0x02, 0x13, 0, 0, 1, 0, 0, 0, 0, 0, 0x12, 1, 16, 2}, // Format 1.6.1 jump [mem] like format 0.9. op1 = 56-59
{0x162, 4, 0xA, 0x82, 0x00, 0, 0, 0, 0, 0, 0, 0, 0, 0x06, 2, 17, 2}, // Format 1.6.2 jump (refpoint, [mem]). op1 = 60-61
{0x163, 4, 0xA, 0xB0, 0x00, 0, 0, 0, 0, 0, 0, 0, 0, 0x00, 0, 18, 2}, // Format 1.6.3 return, sys_call. op1 = 62-63
{0x170, 4, 0xD, 0x00, 0x13, 3, 0, 0, 0, 0, 0, 1, 0, 0x00, 0, 20, 3}, // Format 1.7 D. op1 = 0-15
{0x171, 4, 0xC, 0x81, 0x12, 1, 0, 0, 0, 1, 1, 0, 0x10, 0x00, 0, 1, 2}, // Format 1.7 C. op1 = 16-55, except 52-53
{0x172, 0, 0xC, 0x81, 0x13, 2, 0, 0, 0, 0, 0, 0, 0, 0x00, 0, 21, 2}, // Format 1.7.2 C, unconditional 16 bit jump. op1 = 56-59. Unused
{0x173, 4, 0xC, 0x80, 0x13, 0, 0, 0, 0, 0, 0, 0, 0, 0x00, 0, 22, 2}, // Format 1.7.3 C, jump to register, sys_return. op1 = 60-62
{0x174, 4, 0xC, 0x01, 0x13, 0, 0, 0, 0, 2, 0, 0, 0, 0x00, 0, 23, 2}, // Format 1.7.4 C, trap. op1 = 63
{0x175, 4, 0xC, 0x00, 0x13, 0, 0, 0, 0, 2, 0, 0x40, 0, 0x00, 0, 24, 2}, // Format 1.7.5 C, filler. op1 = 63. IM12 = 0xFFFF
{0x17A, 4, 0xC, 0x81, 0x13, 1, 0, 0, 0, 1, 1, 0, 0, 0x00, 0, 25, 2}, // Format 1.7.A C, sub_maxlen. op1 = 52-53
{0x180, 1, 0xB, 0xA1, 0x00, 0, 0, 0, 0, 1, 0, 0, 0, 0x00, 0, 0, 9},
 
// FX200
{0x200, 3, 0xE, 0xD2, 0x00, 0, 0, 2, 4, 0, 0, 2, 0, 0x12, 0, 16, 1},
{0x201, 3, 0xE, 0xC2, 0x00, 0, 0, 2, 4, 0, 0, 2, 0, 0x16, 0, 17, 1},
{0x202, 3, 0xE, 0xC2, 0x00, 0, 0, 2, 4, 0, 0, 2, 0, 0x16, 2, 18, 1},
{0x203, 3, 0xE, 0xC2, 0x00, 0, 0, 2, 4, 0, 0, 2, 0, 0x26, 2, 19, 1},
{0x205, 3, 0xE, 0xC3, 0x00, 0, 0, 2, 4, 1, 6, 0x100,0, 0x16, 2, 21, 1},
{0x206, 3, 0xE, 0xF0, 0x00, 0, 0, 0, 0, 0, 0, 2, 0, 0x00, 0, 22, 1},
{0x207, 3, 0xE, 0xF1, 0x00, 0, 0, 0, 0, 2, 4, 6, 0, 0x00, 0, 23, 1},
{0x210, 3, 0xA, 0x92, 0x00, 0, 0, 4, 4, 0, 0, 0, 0, 0x12, 0, 13, 1},
{0x220, 3, 0xE, 0xC2, 0x00, 0, 0, 2, 4, 0, 0, 2, 5, 0x12, 0, 24, 1},
{0x221, 3, 0xE, 0xC2, 0x00, 0, 0, 2, 4, 0, 0, 2, 3, 0x12, 0, 25, 1},
{0x222, 3, 0xE, 0xC2, 0x00, 0, 0, 2, 4, 0, 0, 2, 1, 0x16, 2, 26, 1},
{0x223, 3, 0xE, 0xC2, 0x00, 0, 0, 2, 4, 0, 0, 2, 1, 0x26, 2, 27, 1},
{0x224, 3, 0xE, 0xC2, 0x00, 0, 0, 2, 4, 0, 0, 2, 3, 0x16, 4, 28, 1},
{0x225, 3, 0xE, 0xC3, 0x00, 0, 0, 2, 4, 1, 6, 0x100,3, 0x16, 0, 29, 1},
{0x226, 3, 0xE, 0xF0, 0x00, 0, 0, 0, 0, 0, 0, 2, 1, 0x00, 0, 30, 1},
{0x227, 3, 0xE, 0xF1, 0x00, 0, 0, 0, 0, 2, 4, 6, 1, 0x00, 0, 31, 1},
{0x230, 3, 0xA, 0xB1, 0x00, 0, 0, 0, 0, 4, 4, 0, 1, 0x00, 0, 14, 1},
{0x240, 3, 0xA, 0x82, 0x00, 0, 0, 4, 4, 0, 0, 0, 3, 0x12, 0, 15, 1},
 
// FX250
// form cat tmpl opav ot jump addr imm v mem scl fi xt
{0x250, 4, 0xA, 0xB0, 0x00, 3, 4, 0, 0, 0, 0, 0x90, 0x10, 0x00, 0, 4, 2}, // Format 2.5.0. jump w three registers, 24-bit offset
{0x251, 4, 0xB, 0xA1, 0x00, 2, 6, 0, 0, 2, 4, 0x80, 0x10, 0x00, 0, 5, 2}, // Format 2.5.1. jump w 16-bit imm + 16 bit offset. op1 = 0-55
{0x251, 4, 0xB, 0xA1, 0x00, 0, 0, 0, 0, 4, 4, 0x80, 0, 0x00, 0, 28, 2}, // Format 2.5.1x system call. op1 = 56-63
{0x252, 4, 0xB, 0x82, 0x00, 2, 6, 2, 4, 0, 0, 0x80, 0, 0x12, 0, 6, 2}, // Format 2.5.2. jump w memory operand and 16 bit jump offset
{0x252, 4, 0xB, 0x82, 0x00, 0, 0, 4, 4, 0, 0, 0x80, 0, 0x12, 0, 29, 2}, // Format 2.5.2x jump [mem+i]. op1 = 56-63
{0x253, 0, 0xA, 0xB0, 0x00, 3, 4, 0, 0, 0, 0, 0x90, 0x10, 0x00, 0, 7, 2}, // Format 2.5.3. unused
{0x254, 4, 0xC, 0x81, 0x12, 4, 4, 0, 0, 1, 1, 0x80, 0x10, 0x00, 0, 8, 2}, // Format 2.5.4. jump w 8-bit imm + 32 bit offset. op1 = 0-55
{0x254, 4, 0xC, 0x81, 0x13, 4, 4, 0, 0, 1, 1, 0x80, 0, 0x00, 0, 30, 2}, // Format 2.5.4x Same as 2.5.4, 64 bit operand size
{0x255, 4, 0xC, 0x81, 0x12, 1, 1, 0, 0, 4, 4, 0x80, 0x10, 0x00, 0, 9, 2}, // Format 2.5.5. jump w 32-bit imm + 8 bit offset. op1 = 0-55
{0x255, 4, 0xC, 0x81, 0x13, 0, 0, 0, 0, 4, 4, 0x80, 0, 0x00, 0, 31, 2}, // Format 2.5.5x conditional trap. op1 = 56-63
{0x256, 0, 0xB, 0xA0, 0x00, 4, 4, 0, 0, 0, 0, 0x80, 0x10, 0x00, 0, 10, 2}, // Format 2.5.6. unused
{0x257, 4, 0xC, 0x01, 0x13, 0, 0, 0, 0, 2, 0, 0xC0, 0, 0x00, 0, 32, 2}, // Format 2.5.7. system call w 16+32 bit imm
{0x258, 1, 0xB, 0x83, 0x00, 0, 0, 1, 0, 4, 4, 0, 0x10, 0x12, 1, 0, 10}, // single format instructions, format 2.5 B with both memory and immediate: store. op1 = 0-15
{0x259, 1, 0xB, 0x82, 0x00, 0, 0, 4, 4, 0, 0, 0, 0, 0x12, 0, 0, 10}, // single format instructions, format 2.5 B with memory: compare_swap. op1 = 16-23
{0x25A, 1, 0xA, 0x92, 0x00, 0, 0, 4, 4, 0, 0, 0, 1, 0x12, 0, 0, 10}, // Miscellaneous single format instructions, format 2.5 A with memory operand. op1 = 24-63
{0x260, 1, 0xA, 0xB1, 0x00, 0, 0, 0, 0, 4, 4, 0, 1, 0x00, 0, 0, 11},
{0x270, 0, 0xA, 0x00, 0x00, 0, 0, 0, 0, 0, 0, 0, 0, 0x00, 0, 0, 0}, // currently unused
{0x280, 3, 0xA, 0xB1, 0x00, 0, 0, 0, 0, 4, 4, 0, 0, 0x00, 0, 12, 1},
{0x290, 1, 0xA, 0xB1, 0x00, 0, 0, 0, 0, 4, 4, 0, 0, 0x00, 0, 0, 12},
{0x291, 1, 0xA, 0xA2, 0x00, 0, 0, 4, 4, 0, 0, 0, 0, 0x12, 0, 0, 12},
 
// FX300
{0x300, 3, 0xE, 0xD2, 0x00, 0, 0, 4, 8, 0, 0, 2, 0, 0x12, 0, 36, 1},
{0x301, 0, 0xE, 0xD2, 0x00, 0, 0, 4, 8, 0, 0, 2, 0, 0x12, 0, 36, 1}, // Format 3.0.1. unused
{0x302, 3, 0xE, 0xC2, 0x00, 0, 0, 4, 8, 0, 0, 2, 0, 0x16, 2, 38, 1},
{0x303, 3, 0xE, 0xC2, 0x00, 0, 0, 4, 8, 0, 0, 2, 0, 0x26, 2, 39, 1},
{0x305, 3, 0xE, 0xC3, 0x00, 0, 0, 2, 4, 4, 8, 2, 0, 0x16, 2, 41, 1},
{0x307, 3, 0xE, 0xF1, 0x00, 0, 0, 0, 0, 4, 8, 0xA, 0, 0x00, 0, 43, 1},
 
{0x310, 4, 0xA, 0x92, 0x00, 3, 4, 4, 8, 0, 0, 0x90, 0x10, 0x12, 0, 12, 2}, // Jump w memory operand and 32 bit jump offset
{0x311, 4, 0xB, 0xA1, 0x00, 4, 4, 0, 0, 4, 8, 0x80, 0x10, 0x00, 0, 13, 2}, // Jump w 32 bit offset + 32-bit imm. op1 = 0-55
{0x311, 4, 0xB, 0xA1, 0x13, 0, 0, 0, 0, 8, 4, 0x80, 0, 0x00, 0, 40, 2}, // 3.1.1X. Syscall. op1 = 56-63
{0x312, 0, 0xB, 0xA0, 0x00, 4, 4, 0, 0, 0, 0, 0x80, 0x10, 0x00, 0, 14, 2}, // Format 3.1.2. unused
{0x313, 0, 0xB, 0xD2, 0x00, 0, 0, 4, 8, 0, 0, 2, 0, 0x12, 0, 15, 2}, // Format 3.1.3. unused
 
{0x318, 1, 0xA, 0xB1, 0x00, 0, 0, 0, 0, 8, 4, 0, 1, 0x00, 0, 0, 13}, // Triple size single format instructions. op1 = 8-15
{0x320, 3, 0xE, 0xC2, 0x00, 0, 0, 4, 8, 0, 0, 2, 5, 0x12, 0, 44, 1},
{0x321, 3, 0xE, 0xC2, 0x00, 0, 0, 4, 8, 0, 0, 2, 3, 0x12, 0, 45, 1},
{0x322, 3, 0xE, 0xC2, 0x00, 0, 0, 4, 8, 0, 0, 2, 1, 0x16, 2, 46, 1},
{0x323, 3, 0xE, 0xC2, 0x00, 0, 0, 4, 8, 0, 0, 2, 1, 0x26, 2, 47, 1},
{0x325, 3, 0xE, 0xC3, 0x00, 0, 0, 2, 4, 4, 8, 2, 3, 0x12, 0, 49, 1},
{0x327, 3, 0xE, 0xF1, 0x00, 0, 0, 0, 0, 4, 8, 0xA, 1, 0x00, 0, 51, 1},
{0x330, 3, 0xA, 0xB1, 0x00, 0, 0, 0, 0, 8, 4, 0x10, 1, 0x00, 0, 34, 1}, // 340 - 370 do not exist. reserved for larger instruction sizes
{0x380, 3, 0xA, 0xB1, 0x00, 0, 0, 0, 0, 8, 4, 0x10, 0, 0x00, 0, 32, 1}
};
 
uint32_t formatListSize = TableSize(formatList); // export size to other modules
 
// Data size for each operant type, max = 8
const uint32_t dataSizeTable[8] = {1, 2, 4, 8, 16, 4, 8, 16}; // data size in bytes
const uint32_t dataSizeTableMax8[8] = {1, 2, 4, 8, 8, 4, 8, 8}; // same, max 8
const uint32_t dataSizeTableLog[8] = {0, 1, 2, 3, 4, 2, 3, 4}; // log2(dataSizeTable)
const uint32_t dataSizeTableBits[8] = {8, 16, 32, 64, 128, 32, 64, 128}; // data size in bits
const uint64_t dataSizeMask[8] = {0xFF, 0xFFFF, 0xFFFFFFFFU, 0xFFFFFFFFFFFFFFFF, 0xFFFFFFFFFFFFFFFF, 0xFFFFFFFFU, 0xFFFFFFFFFFFFFFFF, 0xFFFFFFFFFFFFFFFF};
 
 
 
// Check integrity of format lists
void checkFormatListIntegrity() {
if (FXEND != TableSize(formatList)) {
printf("\nInternal error in formatList");
exit(1);
}
if (FJEND != TableSize(formatJ)) {
printf("\nInternal error in formatJ");
exit(1);
}
if (sizeof(formatI) != 128) {
printf("\nInternal error in formatI");
exit(1);
}
}
 
 
// Look up format in nested format lists.
// The parameter is the first 64 bits of the instruction
// The return value is a structure containing all information about the instruction format.
// (This method is optimized for speed for the sake of the emulator. The tables use
// a minimum of cache size).
uint32_t lookupFormat(uint64_t instruct) {
// Index into formatI is il.mode.M
uint8_t il_mode_m = (instruct >> 26 & 0x3E) | (instruct >> 15 & 1);
uint8_t crit = formatI[il_mode_m].crit;
uint8_t t = formatI[il_mode_m].index;
uint8_t i;
STemplate F;
F.q = instruct;
 
// Nested table lookup
while (crit) {
// Index into next table determined by criterion
switch (crit) {
case 1: // mode2
i = F.a.mode2; // instruct >> 59 & 7;
break;
case 2: // op1 / 8
i = instruct >> 24 & 7;
break;
case 3: // op1 % 8
i = instruct >> 21 & 7;
break;
case 4: // IM1 / 8 % 8
i = instruct >> 3 & 7;
break;
case 5: // IM1 % 8,
i = instruct & 7;
break;
case 6: // op1 / 4. unused
i = instruct >> 23 & 7;
break;
case 7: // op1 / 2 % 16
i = instruct >> 22 & 0xF;
break;
case 8: // IM12 == 0xFFFF
i = (instruct & 0xFFFF) == 0xFFFF;
break;
default: // Error. Should never occur
printf("\nInternal error in formatList");
return FX380;
}
t += i;
if (t >= FJEND) return FX380; // Error. Should never occur
crit = formatJ[t].crit;
t = formatJ[t].index;
}
if (t >= FXEND) return FX380; // Error. Should never occur
 
return t;
}
 
// Table of tables, indexed by fInstr->exeTable
PFunc * metaFunctionTable[14] = {
0, funcTab1, funcTab2, funcTab3, funcTab4, funcTab5, funcTab6, funcTab7,
funcTab8, funcTab9, funcTab10, funcTab11, funcTab12, funcTab13
};
 
// constants used in numOperands table below
const uint8_t D = 0x22; // double size operation. take two vector elements at a time
const uint8_t M = 0x0A; // ignore mask. call instruction function even if mask = 0
const uint8_t L = 0x1A; // ignore mask. RT is not a vector, or destination is not a vector. vector length is determined by the instruction function
const uint8_t l = 0x19; // same as L, single operand
const uint8_t N = 0x1B; // same as L, three operands
const uint8_t A = 0x41; // one operand, don't read memory operand
const uint8_t S = 0xC9; // store: one operand, don't read memory operand, ignore mask, don't modify RD
 
// Table of number of operands for each instruction
// bit 0-2: number of source operands
// bit 3: call execution function even if mask = 0
// bit 4: RT is not a vector register. vector length is determined by the instruction function
// bit 5: take two vector elements at a time
// bit 6: don't read memory operand before calling execution function
// bit 7: RD is unchanged (not destination)
uint8_t numOperands[15][64] = {
{0}, // 8 16 24 32 40 48 56
{8,S,1,1,1,1,2,M, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,M, M,M,2,2,2,2,2,2, 3,3,3,3,3,3,3,3, 2,2,2,2,2,2,2,2}, // 1: multi-format instructions
{2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2}, // 2: conditional and indirect jump instructions
{1,1,1,1,1,1,1,1, 1,1,1,1,1,1,1,1, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0}, // 3: simple jump and call instructions
{0,1,1,1,1,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2}, // 4: format 1.0
{1,1,1,1,1,1,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2}, // 5: format 1.1
{9,9,L,L,3,L,N,L, L,L,L,L,L,L,L,L, L,L,L,L,1,1,2,2, D,D,D,D,1,2,2,2, 2,2,2,2,2,2,D,D, D,D,D,D,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,L,L,L,L,L,L}, // 6: format 1.2
{l,l,L,L,N,2,L,L, 2,2,2,2,2,2,2,2, 2,2,2,1,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, L,L,L,2,2,2,2,2}, // 7: format 1.3
{1,2,2,2,2,2,2,2, 1,1,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 1,1,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2}, // 8: format 1.4
{2,3,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, M,M,M,M,M,M,M,M, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,3}, // 9: format 1.8
 
{2,2,2,2,2,2,2,2, A,2,2,2,2,2,2,2, 2,2,3,2,2,2,2,2, 2,2,2,2,2,2,2,2, N,2,2,2,2,2,2,2,0x5A,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2},//10: format 2.5
{l,L,2,2,2,2,L,2, L,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2}, //11: format 2.6
{1,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, A,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2}, //12: format 2.9
{2,2,2,l,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,L,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2, 2,2,2,2,2,2,2,2}, //13: format 3.1
{0}
};
 
// Table of number of operands for each instruction, Format 2.0.7, op2 = 1
uint8_t numOperands2071[64] = {
// 0 8 16 24 32 40 48 56
3,3,3,3,3,3,3,3, 3,3,3,3,3,3,3,3, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0};
 
// Table of number of operands for each instruction, Format 2.2.6, op2 = 1
uint8_t numOperands2261[64] = {
// 0 8 16 24 32 40 48 56
N,N,N,0,0,0,0,0, 0xB,3,3,3,3,3,3,3, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0};
 
// Table of number of operands for each instruction, Format 2.2.7, op2 = 1
uint8_t numOperands2271[64] = {
// 0 8 16 24 32 40 48 56
3,3,3,3,3,3,3,3, N,N,3,3,3,3,3,3, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0};

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