Mercurial > hg > index.cgi
view lwasm/cycle.c @ 455:cad5937314cb
Add operandsizewarning pragma
Add operandsizewarning pragma that will raise warnings for certain operands
if the operand size could be smaller. (Long branch used instead of short
branch, for instance.)
author | William Astle <lost@l-w.ca> |
---|---|
date | Fri, 16 Feb 2018 22:53:46 -0700 |
parents | 0af33282b518 |
children | b9917c4dc6cf |
line wrap: on
line source
/* cycle.c Copyright (c) 2015 Erik Gavriluk Dual-licensed BSD 3-CLAUSE and GPL as per below. Thanks to John Kowalksi for cycle count verification. This file is part of LWTOOLS. LWTOOLS is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ #include "lwasm.h" typedef struct { int opc; int cycles_6809; int cycles_6309; cycle_flags flags; } cycletable_t; static cycletable_t cycletable[] = { { 0x3a, 3, 1, 0 }, // ABX { 0x89, 2, 2, 0 }, // ADCA { 0x99, 4, 3, 0 }, { 0xa9, 4, 4, CYCLE_ADJ }, { 0xb9, 5, 4, 0 }, { 0xc9, 2, 2, 0 }, // ADCB { 0xd9, 4, 3, 0 }, { 0xe9, 4, 4, CYCLE_ADJ }, { 0xf9, 5, 4, 0 }, { 0x1089, 5, 4, 0 }, // ADCD { 0x1099, 7, 5, 0 }, { 0x10a9, 7, 6, CYCLE_ADJ }, { 0x10b9, 8, 6, 0 }, { 0x8b, 2, 2, 0 }, // ADDA { 0x9b, 4, 3, 0 }, { 0xab, 4, 4, CYCLE_ADJ }, { 0xbb, 5, 4, 0 }, { 0xcb, 2, 2, 0 }, // ADDB { 0xdb, 4, 3, 0 }, { 0xeb, 4, 4, CYCLE_ADJ }, { 0xfb, 5, 4, 0 }, { 0xc3, 4, 3, 0 }, // ADDD { 0xd3, 6, 4, 0 }, { 0xe3, 6, 5, CYCLE_ADJ }, { 0xf3, 7, 5, 0 }, { 0x118b, 3, 3, 0 }, // ADDE { 0x119b, 5, 4, 0 }, { 0x11ab, 5, 5, CYCLE_ADJ }, { 0x11bb, 6, 5, 0 }, { 0x11cb, 3, 3, 0 }, // ADDF { 0x11db, 5, 4, 0 }, { 0x11eb, 5, 5, CYCLE_ADJ }, { 0x11fb, 6, 5, 0 }, { 0x1031, 4, 4, 0 }, // ADCR { 0x1030, 4, 4, 0 }, // ADDR { 0x1034, 4, 4, 0 }, // ANDR { 0x1037, 4, 4, 0 }, // CMPR { 0x1036, 4, 4, 0 }, // EORR { 0x1035, 4, 4, 0 }, // ORR { 0x1033, 4, 4, 0 }, // SBCR { 0x1032, 4, 4, 0 }, // SUBR { 0x108b, 5, 4, 0 }, // ADDW { 0x109b, 7, 5, 0 }, { 0x10ab, 7, 6, CYCLE_ADJ }, { 0x10bb, 8, 6, 0 }, { 0x02, 6, 6, 0 }, // AIM { 0x62, 7, 7, CYCLE_ADJ }, { 0x72, 7, 7, 0 }, { 0x84, 2, 2, 0 }, // ANDA { 0x94, 4, 3, 0 }, { 0xa4, 4, 4, CYCLE_ADJ }, { 0xb4, 5, 4, 0 }, { 0xc4, 2, 2, 0 }, // ANDB { 0xd4, 4, 3, 0 }, { 0xe4, 4, 4, CYCLE_ADJ }, { 0xf4, 5, 4, 0 }, { 0x1c, 3, 2, 0 }, // ANDCC { 0x1084, 5, 4, 0 }, // ANDD { 0x1094, 7, 5, 0 }, { 0x10a4, 7, 6, CYCLE_ADJ }, { 0x10b4, 8, 6, 0 }, { 0x48, 2, 1, 0 }, // ASL { 0x58, 2, 1, 0 }, { 0x1048, 3, 2, 0 }, { 0x08, 6, 5, 0 }, { 0x68, 6, 6, CYCLE_ADJ }, { 0x78, 7, 6, 0 }, { 0x47, 2, 1, 0 }, // ASR { 0x57, 2, 1, 0 }, { 0x1047, 3, 2, 0 }, { 0x07, 6, 6, 0 }, { 0x67, 6, 6, CYCLE_ADJ }, { 0x77, 7, 6, 0 }, { 0x1130, 7, 6, 0 }, // BAND { 0x1131, 7, 6, 0 }, // BIAND { 0x1132, 7, 6, 0 }, // BOR { 0x1133, 7, 6, 0 }, // BIOR { 0x1134, 7, 6, 0 }, // BEOR { 0x1135, 7, 6, 0 }, // BIEOR { 0x85, 2, 2, 0 }, // BITA { 0x95, 4, 3, 0 }, { 0xa5, 4, 4, CYCLE_ADJ }, { 0xb5, 5, 4, 0 }, { 0xc5, 2, 2, 0 }, // BITB { 0xd5, 4, 3, 0 }, { 0xe5, 4, 4, CYCLE_ADJ }, { 0xf5, 5, 4, 0 }, { 0x1085, 5, 4, 0 }, // BITD { 0x1095, 7, 5, 0 }, { 0x10a5, 7, 6, CYCLE_ADJ }, { 0x10b5, 8, 6, 0 }, { 0x113c, 4, 4, 0 }, // BITMD { 0x20, 3, 3, 0 }, // BRA { 0x21, 3, 3, 0 }, { 0x22, 3, 3, 0 }, { 0x23, 3, 3, 0 }, { 0x24, 3, 3, 0 }, { 0x25, 3, 3, 0 }, { 0x26, 3, 3, 0 }, { 0x27, 3, 3, 0 }, { 0x28, 3, 3, 0 }, { 0x29, 3, 3, 0 }, { 0x2a, 3, 3, 0 }, { 0x2b, 3, 3, 0 }, { 0x2c, 3, 3, 0 }, { 0x2d, 3, 3, 0 }, { 0x2e, 3, 3, 0 }, { 0x2f, 3, 3, 0 }, { 0x8d, 7, 6, 0 }, // BSR { 0x4f, 2, 1, 0 }, // CLR { 0x5f, 2, 1, 0 }, { 0x104f, 3, 2, 0 }, { 0x114f, 3, 2, 0 }, { 0x115f, 3, 2, 0 }, { 0x105f, 3, 2, 0 }, { 0x0f, 6, 5, 0 }, { 0x6f, 6, 6, CYCLE_ADJ }, { 0x7f, 7, 6, 0 }, { 0x81, 2, 2, 0 }, // CMPA { 0x91, 4, 3, 0 }, { 0xa1, 4, 4, CYCLE_ADJ }, { 0xb1, 5, 4, 0 }, { 0xc1, 2, 2, 0 }, // CMPB { 0xd1, 4, 3, 0 }, { 0xe1, 4, 4, CYCLE_ADJ }, { 0xf1, 5, 4, 0 }, { 0x1083, 5, 4, 0 }, // CMPD { 0x1093, 7, 5, 0 }, { 0x10a3, 7, 6, CYCLE_ADJ }, { 0x10b3, 8, 6, 0 }, { 0x1081, 3, 3, 0 }, // CMPE { 0x1091, 5, 4, 0 }, { 0x10a1, 5, 5, CYCLE_ADJ }, { 0x10b1, 6, 5, 0 }, { 0x10c1, 3, 3, 0 }, // CMPF { 0x10d1, 5, 4, 0 }, { 0x10e1, 5, 5, CYCLE_ADJ }, { 0x10f1, 6, 5, 0 }, { 0x118c, 5, 4, 0 }, // CMPS { 0x119c, 7, 5, 0 }, { 0x11ac, 7, 6, CYCLE_ADJ }, { 0x11bc, 8, 6, 0 }, { 0x1183, 5, 4, 0 }, // CMPU { 0x1193, 7, 5, 0 }, { 0x11a3, 7, 6, CYCLE_ADJ }, { 0x11b3, 8, 6, 0 }, { 0x1181, 5, 4, 0 }, // CMPW { 0x1191, 7, 5, 0 }, { 0x11a1, 7, 6, CYCLE_ADJ }, { 0x11b1, 8, 6, 0 }, { 0x8c, 4, 3, 0 }, // CMPX { 0x9c, 6, 4, 0 }, { 0xac, 6, 5, CYCLE_ADJ }, { 0xbc, 7, 5, 0 }, { 0x108c, 5, 4, 0 }, // CMPY { 0x109c, 7, 5, 0 }, { 0x10ac, 7, 6, CYCLE_ADJ }, { 0x10bc, 8, 6, 0 }, { 0x43, 2, 1, 0 }, // COMA { 0x53, 2, 1, 0 }, // COMB { 0x1043, 3, 2, 0 }, // COMD { 0x1143, 3, 2, 0 }, // COME { 0x1153, 3, 2, 0 }, // COMF { 0x1053, 3, 2, 0 }, // COMW { 0x03, 6, 5, 0 }, // COM { 0x63, 6, 6, CYCLE_ADJ }, { 0x73, 7, 6, 0 }, { 0x3c, 22, 20, CYCLE_ESTIMATED }, // CWAI { 0x19, 2, 1, 0 }, // DAA { 0x4a, 2, 1, 0 }, // DECA { 0x5a, 2, 1, 0 }, // DECB { 0x104a, 3, 2, 0 }, // DECD { 0x114a, 3, 2, 0 }, // DECE { 0x115a, 3, 2, 0 }, // DECF { 0x105a, 3, 2, 0 }, // DECW { 0x0a, 6, 5, 0 }, // DEC { 0x6a, 6, 6, CYCLE_ADJ }, { 0x7a, 7, 6, 0 }, { 0x118d, 25, 25, 0 }, // DIVD { 0x119d, 27, 26, 0 }, { 0x11ad, 27, 27, CYCLE_ADJ }, { 0x11bd, 28, 27, 0 }, { 0x118e, 34, 34, 0 }, // DIVQ { 0x119e, 36, 35, 0 }, { 0x11ae, 36, 36, 0 }, { 0x11be, 37, 36, 0 }, { 0x05, 6, 6, 0 }, // EIM { 0x65, 7, 7, CYCLE_ADJ }, { 0x75, 7, 7, 0 }, { 0x88, 2, 2, 0 }, // EORA { 0x98, 4, 3, 0 }, { 0xa8, 4, 4, CYCLE_ADJ }, { 0xb8, 5, 4, 0 }, { 0xc8, 2, 2, 0 }, // EORB { 0xd8, 4, 3, 0 }, { 0xe8, 4, 4, CYCLE_ADJ }, { 0xf8, 5, 4, 0 }, { 0x1088, 5, 4, 0 }, // EORD { 0x1098, 7, 5, 0 }, { 0x10a8, 7, 6, CYCLE_ADJ }, { 0x10b8, 8, 6, 0 }, { 0x1e, 8, 5, 0 }, // EXG { 0x4c, 2, 1, 0 }, // INCA { 0x5c, 2, 1, 0 }, // INCB { 0x104c, 3, 2, 0 }, // INCD { 0x114c, 3, 2, 0 }, // INCE { 0x115c, 3, 2, 0 }, // INCF { 0x105c, 3, 2, 0 }, // INCW { 0x0c, 6, 5, 0 }, // INC { 0x6c, 6, 6, CYCLE_ADJ }, { 0x7c, 7, 6, 0 }, { 0x0e, 3, 2, 0 }, // JMP { 0x6e, 3, 3, CYCLE_ADJ }, { 0x7e, 4, 3, 0 }, { 0x9d, 7, 6, 0 }, // JSR { 0xad, 7, 6, CYCLE_ADJ }, { 0xbd, 8, 7, 0 }, { 0x16, 5, 4, 0 }, // LBRA { 0x17, 9, 7, 0 }, // LBSR { 0x1021, 5, 5, 0 }, // LBRN { 0x1022, 5, 5, 0 }, // remaining long branches are estimated on 6809 only: { 0x1023, 5, 5, 0 }, // { 0x1024, 5, 5, 0 }, // 6809: 5 cycles, +1 cycle if the branch is taken { 0x1025, 5, 5, 0 }, // 6309 native: always 5 cycles { 0x1026, 5, 5, 0 }, // { 0x1027, 5, 5, 0 }, // this is handled as a special case elsewhere { 0x1028, 5, 5, 0 }, { 0x1029, 5, 5, 0 }, { 0x102a, 5, 5, 0 }, { 0x102b, 5, 5, 0 }, { 0x102c, 5, 5, 0 }, { 0x102d, 5, 5, 0 }, { 0x102e, 5, 5, 0 }, { 0x102f, 5, 5, 0 }, { 0x86, 2, 2, 0 }, // LDA { 0x96, 4, 3, 0 }, { 0xa6, 4, 4, CYCLE_ADJ }, { 0xb6, 5, 4, 0 }, { 0xc6, 2, 2, 0 }, // LDB { 0xd6, 4, 3 }, { 0xe6, 4, 4, CYCLE_ADJ }, { 0xf6, 5, 4, 0 }, { 0x1136, 7, 6, 0 }, // LDBT { 0xcc, 3, 3, 0 }, // LDD { 0xdc, 5, 4, 0 }, { 0xec, 5, 5, CYCLE_ADJ }, { 0xfc, 6, 5, 0 }, { 0x1186, 3, 3, 0 }, // LDE { 0x1196, 5, 4, 0 }, { 0x11a6, 5, 5, CYCLE_ADJ }, { 0x11b6, 6, 5, 0 }, { 0x11c6, 3, 3, 0 }, // LDF { 0x11d6, 5, 4, 0 }, { 0x11e6, 5, 5, CYCLE_ADJ }, { 0x11f6, 6, 5, 0 }, { 0xcd, 5, 5, 0 }, // LDQ { 0x10dc, 8, 7, 0 }, { 0x10ec, 8, 8, CYCLE_ADJ }, { 0x10fc, 9, 8, 0 }, { 0x10ce, 4, 4, 0 }, // LDS { 0x10de, 6, 5, 0 }, { 0x10ee, 6, 6, CYCLE_ADJ }, { 0x10fe, 7, 6, 0 }, { 0xce, 3, 3, 0 }, // LDU { 0xde, 5, 4, 0 }, { 0xee, 5, 5, CYCLE_ADJ }, { 0xfe, 6, 5, 0 }, { 0x1086, 4, 4, 0 }, // LDW { 0x1096, 6, 5, 0 }, { 0x10a6, 6, 6, CYCLE_ADJ }, { 0x10b6, 7, 6, 0 }, { 0x8e, 3, 3, 0 }, // LDX { 0x9e, 5, 4, 0 }, { 0xae, 5, 5, CYCLE_ADJ }, { 0xbe, 6, 5, 0 }, { 0x108e, 4, 4, 0 }, // LDY { 0x109e, 6, 5, 0 }, { 0x10ae, 6, 6, CYCLE_ADJ }, { 0x10be, 7, 6, 0 }, { 0x113d, 5, 5, 0 }, // LDMD { 0x30, 4, 4, CYCLE_ADJ }, // LEA { 0x31, 4, 4, CYCLE_ADJ }, { 0x32, 4, 4, CYCLE_ADJ }, { 0x33, 4, 4, CYCLE_ADJ }, { 0x44, 2, 1, 0 }, // LSRA { 0x54, 2, 1, 0 }, // LSRB { 0x1044, 3, 2, 0 }, // LSRD { 0x1054, 3, 2, 0 }, // LSRW { 0x04, 6, 5, 0 }, // LSR { 0x64, 6, 6, CYCLE_ADJ }, { 0x74, 7, 6, 0 }, { 0x3d, 11, 10, 0 }, // MUL { 0x118f, 28, 28, 0 }, // MULD { 0x119f, 30, 29, 0 }, { 0x11af, 30, 30, CYCLE_ADJ }, { 0x11bf, 31, 30, 0 }, { 0x40, 2, 1, 0 }, // NEGA { 0x50, 2, 1, 0 }, // NEGB { 0x1040, 3, 2, 0 }, // NEGD { 0x00, 6, 5, 0 }, // NEG { 0x60, 6, 6, CYCLE_ADJ }, { 0x70, 7, 6, 0 }, { 0x12, 2, 1, 0 }, // NOP { 0x01, 6, 6, 0 }, // OIM { 0x61, 7, 7, CYCLE_ADJ }, { 0x71, 7, 7, 0 }, { 0x8a, 2, 2, 0 }, // ORA { 0x9a, 4, 3, 0 }, { 0xaa, 4, 4, CYCLE_ADJ }, { 0xba, 5, 4, 0 }, { 0xca, 2, 2, 0 }, // ORB { 0xda, 4, 3, 0 }, { 0xea, 4, 4, CYCLE_ADJ }, { 0xfa, 5, 4, 0 }, { 0x1a, 3, 2, 0 }, // ORCC { 0x108a, 5, 4, 0 }, // ORD { 0x109a, 7, 5, 0 }, { 0x10aa, 7, 6, CYCLE_ADJ }, { 0x10ba, 8, 6, 0 }, { 0x34, 5, 4, CYCLE_ADJ }, // PSHS { 0x36, 5, 4, CYCLE_ADJ }, // PSHU { 0x35, 5, 4, CYCLE_ADJ }, // PULS { 0x37, 5, 4, CYCLE_ADJ }, // PULU { 0x1038, 6, 6, 0 }, // PSHSW { 0x103a, 6, 6, 0 }, // PSHUW { 0x1039, 6, 6, 0 }, // PULSW { 0x103b, 6, 6, 0 }, // PULUW { 0x49, 2, 1, 0 }, // ROLA { 0x59, 2, 1, 0 }, // ROLB { 0x1049, 3, 2, 0 }, // ROLD { 0x1059, 3, 2, 0 }, // ROLW { 0x09, 6, 5, 0 }, // ROL { 0x69, 6, 6, CYCLE_ADJ }, { 0x79, 7, 6, 0 }, { 0x46, 2, 1, 0 }, // RORA { 0x56, 2, 1, 0 }, // RORB { 0x1046, 3, 2, 0 }, // RORD { 0x1056, 3, 2, 0 }, // RORW { 0x06, 6, 5, 0 }, // ROR { 0x66, 6, 6, CYCLE_ADJ }, { 0x76, 7, 6, 0 }, { 0x3b, 6, 17, CYCLE_ESTIMATED }, // RTI { 0x39, 5, 4, 0 }, // RTS { 0x82, 2, 2, 0 }, // SBCA { 0x92, 4, 3, 0 }, { 0xa2, 4, 4, CYCLE_ADJ }, { 0xb2, 5, 4, 0 }, { 0xc2, 2, 2, 0 }, // SBCB { 0xd2, 4, 3, 0 }, { 0xe2, 4, 4, CYCLE_ADJ }, { 0xf2, 5, 4, 0 }, { 0x1082, 5, 4, 0 }, // SBCD { 0x1092, 7, 5, 0 }, { 0x10a2, 7, 6, CYCLE_ADJ }, { 0x10b2, 8, 6, 0 }, { 0x1d, 2, 1, 0 }, // SEX { 0x14, 4, 4, 0 }, // SEXW { 0x97, 4, 3, 0 }, // STA { 0xa7, 4, 4, CYCLE_ADJ }, { 0xb7, 5, 4, 0 }, { 0xd7, 4, 3, 0 }, // STB { 0xe7, 4, 4, CYCLE_ADJ }, { 0xf7, 5, 4, 0 }, { 0x1137, 8, 7, 0 }, // STBT { 0xdd, 5, 4, 0 }, // STD { 0xed, 5, 5, CYCLE_ADJ }, { 0xfd, 6, 5, 0 }, { 0x1197, 5, 4, 0 }, // STE { 0x11a7, 5, 5, CYCLE_ADJ }, { 0x11b7, 6, 5, 0 }, { 0x11d7, 5, 4, 0 }, // STF { 0x11e7, 5, 5, CYCLE_ADJ }, { 0x11f7, 6, 5, 0 }, { 0x10dd, 8, 7, 0 }, // STQ { 0x10ed, 8, 8, CYCLE_ADJ }, { 0x10fd, 9, 8, 0 }, { 0x10df, 6, 5, 0 }, // STS { 0x10ef, 6, 6, CYCLE_ADJ }, { 0x10ff, 7, 6, 0 }, { 0xdf, 5, 4, 0 }, // STU { 0xef, 5, 5, CYCLE_ADJ }, { 0xff, 6, 5, 0 }, { 0x1097, 6, 5, 0 }, // STW { 0x10a7, 6, 6, CYCLE_ADJ }, { 0x10b7, 7, 6, 0 }, { 0x9f, 5, 4, 0 }, // STX { 0xaf, 5, 5, CYCLE_ADJ }, { 0xbf, 6, 5, 0 }, { 0x109f, 6, 5, 0 }, // STY { 0x10af, 6, 6, CYCLE_ADJ }, { 0x10bf, 7, 6, 0 }, { 0x80, 2, 2, 0 }, // SUBA { 0x90, 4, 3, 0 }, { 0xa0, 4, 4, CYCLE_ADJ }, { 0xb0, 5, 4, 0 }, { 0xc0, 2, 2, 0 }, // SUBB { 0xd0, 4, 3, 0 }, { 0xe0, 4, 4, CYCLE_ADJ }, { 0xf0, 5, 4, 0 }, { 0x83, 4, 3, 0 }, // SUBD { 0x93, 6, 4, 0 }, { 0xa3, 6, 5, CYCLE_ADJ }, { 0xb3, 7, 5, 0 }, { 0x1180, 3, 3, 0 }, // SUBE { 0x1190, 5, 4, 0 }, { 0x11a0, 5, 5, CYCLE_ADJ }, { 0x11b0, 6, 5, 0 }, { 0x11c0, 3, 3, 0 }, // SUBF { 0x11d0, 5, 4, 0 }, { 0x11e0, 5, 5, CYCLE_ADJ }, { 0x11f0, 6, 5, 0 }, { 0x1080, 5, 4, 0 }, // SUBW { 0x1090, 7, 5, 0 }, { 0x10a0, 7, 6, CYCLE_ADJ }, { 0x10b0, 8, 6, 0 }, { 0x3f, 19, 21, 0 }, // SWI { 0x103f, 20, 22, 0 }, // SWI2 { 0x113f, 20, 22, 0 }, // SWI3 { 0x13, 2, 1, CYCLE_ESTIMATED }, // SYNC { 0x1f, 6, 4, 0 }, // TFR { 0x0b, 6, 6, CYCLE_ESTIMATED }, // TIM { 0x6b, 7, 7, CYCLE_ADJ | CYCLE_ESTIMATED }, { 0x7b, 5, 5, CYCLE_ESTIMATED }, { 0x1138, 6, 6, CYCLE_ESTIMATED }, // TFM { 0x1139, 6, 6, CYCLE_ESTIMATED }, { 0x113a, 6, 6, CYCLE_ESTIMATED }, { 0x113b, 6, 6, CYCLE_ESTIMATED }, { 0x4d, 2, 1, 0 }, // TSTA { 0x5d, 2, 1, 0 }, // TSTB { 0x104d, 3, 2, 0 }, // TSTD { 0x114d, 3, 2, 0 }, // TSTE { 0x115d, 3, 2, 0 }, // TSTF { 0x105d, 3, 2, 0 }, // TSTW { 0x0d, 6, 4, 0 }, // TST { 0x6d, 6, 5, CYCLE_ADJ }, { 0x7d, 7, 5, 0 }, { -1, -1 } }; typedef struct { int cycles_6809_indexed; int cycles_6309_indexed; int cycles_6809_indirect; int cycles_6309_indirect; } indtab_t; static indtab_t indtab[] = { { 2, 1, -1, -1, }, // 0000 ,R+ { 3, 2, 6, 6, }, // 0001 ,R++ [,R++] { 2, 1, -1, -1, }, // 0010 ,-R { 3, 2, 6, 6, }, // 0011 ,--R [,--R] { 0, 0, 3, 3, }, // 0100 ,R [,R] { 1, 1, 4, 4, }, // 0101 B,R [B,R] { 1, 1, 4, 4, }, // 0110 A,R [A,R] { 1, 1, 1, 1, }, // 0111 E,R [E,R] { 1, 1, 4, 4, }, // 1000 n,R [n,R] { 4, 3, 7, 7, }, // 1001 n,R [n,R] (16 bit) { 1, 1, 1, 1, }, // 1010 F,R [F,R] { 4, 2, 4, 4, }, // 1011 D,R [D,R] { 1, 1, 4, 4, }, // 1100 n,PC [n,PC] { 5, 3, 8, 8, }, // 1101 n,PC [n,PC] (16 bit) { 4, 1, 4, 4, }, // 1110 W,R [W,R] { -1, -1, 5, 5, }, // 1111 [n] (16 bit) }; /* calculates additional ticks from post byte in both indexed and indirect modes */ int lwasm_cycle_calc_ind(line_t *cl) { int pb = cl->pb; if ((pb & 0x80) == 0) /* 5 bit offset */ return 1; if (pb & 0x10) /* indirect */ return CURPRAGMA(cl, PRAGMA_6809) ? indtab[pb & 0xf].cycles_6809_indirect : indtab[pb & 0xf].cycles_6309_indirect; else return CURPRAGMA(cl, PRAGMA_6809) ? indtab[pb & 0xf].cycles_6809_indexed : indtab[pb & 0xf].cycles_6309_indexed; } /* calculate additional ticks from post byte in rlist (PSHS A,B,X...) */ int lwasm_cycle_calc_rlist(line_t *cl) { int i, cycles = 0; for (i = 0; i < 8; i++) { // 1 cycle for 8 bit regs CC-DP (bits 0-3) // otherwise 2 if (cl->pb & 1 << i) cycles += (i <= 3) ? 1 : 2; } return cycles; } void lwasm_cycle_update_count(line_t *cl, int opc) { int i; for (i = 0; 1; i++) { if (cycletable[i].opc == -1) return; if (cycletable[i].opc == opc) { cl->cycle_base = CURPRAGMA(cl, PRAGMA_6809) ? cycletable[i].cycles_6809 : cycletable[i].cycles_6309; cl->cycle_flags = cycletable[i].flags; cl->cycle_adj = 0; // long branches are estimated on 6809 if (CURPRAGMA(cl, PRAGMA_6809) && (opc >= 0x1022 && opc <= 0x102f)) cl->cycle_flags |= CYCLE_ESTIMATED; return; } } }