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comparison z80inst.c @ 235:d9bf8e61c33c

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Get Z80 core working for simple programs
author Mike Pavone <pavone@retrodev.com>
date Thu, 25 Apr 2013 21:01:11 -0700
parents 4d4559b04c59
children 682e505f5757
comparison
equal deleted inserted replaced
234:f456ee23d372 235:d9bf8e61c33c
1247 memcpy(decoded, z80_tbl_a + *istream, sizeof(z80inst)); 1247 memcpy(decoded, z80_tbl_a + *istream, sizeof(z80inst));
1248 1248
1249 } 1249 }
1250 if ((decoded->addr_mode & 0x1F) == Z80_IMMED && decoded->op != Z80_RST && decoded->op != Z80_IM) { 1250 if ((decoded->addr_mode & 0x1F) == Z80_IMMED && decoded->op != Z80_RST && decoded->op != Z80_IM) {
1251 decoded->immed = *(++istream); 1251 decoded->immed = *(++istream);
1252 if (decoded->reg >= Z80_BC && decoded->reg < Z80_UNUSED) { 1252 if ((decoded->reg >= Z80_BC && decoded->reg < Z80_UNUSED) || decoded->op == Z80_CALL || decoded->op == Z80_CALLCC) {
1253 decoded->immed |= *(++istream) << 8; 1253 decoded->immed |= *(++istream) << 8;
1254 } else if (decoded->immed & 0x80) { 1254 } else if (decoded->immed & 0x80) {
1255 decoded->immed |= 0xFF00; 1255 decoded->immed |= 0xFF00;
1256 } 1256 }
1257 } else if ((decoded->addr_mode & 0x1F) == Z80_IMMED_INDIRECT) { 1257 } else if ((decoded->addr_mode & 0x1F) == Z80_IMMED_INDIRECT) {
1336 "outd", 1336 "outd",
1337 "otdr" 1337 "otdr"
1338 }; 1338 };
1339 1339
1340 char * z80_regs[Z80_USE_IMMED] = { 1340 char * z80_regs[Z80_USE_IMMED] = {
1341 "c",
1341 "b", 1342 "b",
1342 "c", 1343 "e",
1343 "d", 1344 "d",
1344 "e", 1345 "l",
1345 "h", 1346 "h",
1346 "l", 1347 "ixl",
1347 "ixh", 1348 "ixh",
1348 "ixl", 1349 "iyl",
1349 "iyh", 1350 "iyh",
1350 "iyl",
1351 "i", 1351 "i",
1352 "r", 1352 "r",
1353 "a", 1353 "a",
1354 "bc", 1354 "bc",
1355 "de", 1355 "de",