URL
https://opencores.org/ocsvn/forwardcom/forwardcom/trunk
Subversion Repositories forwardcom
[/] [forwardcom/] [bintools/] [format_tables.cpp] - Rev 92
Go to most recent revision | Compare with Previous | Blame | View Log
/**************************** 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};
Go to most recent revision | Compare with Previous | Blame | View Log