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comparison z80.cpu @ 1764:6cc2fa6a1955

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A couple more instruction timing fixes in new Z80 core
author Michael Pavone <pavone@retrodev.com>
date Wed, 20 Feb 2019 00:16:27 -0800
parents 7e97d820b491
children 1dc718581aac
comparison
equal deleted inserted replaced
1763:7e97d820b491 1764:6cc2fa6a1955
381 381
382 dd 01110RRR ld_to_ix 382 dd 01110RRR ld_to_ix
383 z80_calc_index ix 383 z80_calc_index ix
384 mov wz scratch2 384 mov wz scratch2
385 mov main.R scratch1 385 mov main.R scratch1
386 cycles 5
386 ocall write_8 387 ocall write_8
387 388
388 fd 01110RRR ld_to_iy 389 fd 01110RRR ld_to_iy
389 z80_calc_index iy 390 z80_calc_index iy
390 mov wz scratch2 391 mov wz scratch2
391 mov main.R scratch1 392 mov main.R scratch1
393 cycles 5
392 ocall write_8 394 ocall write_8
393 395
394 00110110 ld_to_hl_immed 396 00110110 ld_to_hl_immed
395 z80_fetch_immed 397 z80_fetch_immed
396 z80_store_hl 398 z80_store_hl
985 add 1 hlt wz 987 add 1 hlt wz
986 adc src hlt hlt 988 adc src hlt hlt
987 update_flags SZYHVXN0C 989 update_flags SZYHVXN0C
988 mov hlt l 990 mov hlt l
989 lsr hlt 8 h 991 lsr hlt 8 h
992 cycles 7
990 993
991 ed 01001010 adc_hl_bc 994 ed 01001010 adc_hl_bc
992 local hlw 16 995 local hlw 16
993 local bcw 16 996 local bcw 16
994 meta hlt hlw 997 meta hlt hlw
1111 add 1 hlt wz 1114 add 1 hlt wz
1112 sbc src hlt hlt 1115 sbc src hlt hlt
1113 update_flags SZYHVXN1C 1116 update_flags SZYHVXN1C
1114 mov hlt l 1117 mov hlt l
1115 lsr hlt 8 h 1118 lsr hlt 8 h
1119 cycles 7
1116 1120
1117 ed 01000010 sbc_hl_bc 1121 ed 01000010 sbc_hl_bc
1118 local hlw 16 1122 local hlw 16
1119 local bcw 16 1123 local bcw 16
1120 meta hlt hlw 1124 meta hlt hlw
1367 #or add some syntax to force a certain size on an operation so they are unnecessary 1371 #or add some syntax to force a certain size on an operation so they are unnecessary
1368 mov scratch1 tmp 1372 mov scratch1 tmp
1369 add 1 tmp tmp 1373 add 1 tmp tmp
1370 update_flags SZYHVXN0 1374 update_flags SZYHVXN0
1371 mov tmp scratch1 1375 mov tmp scratch1
1376 cycles 1
1372 z80_store_hl 1377 z80_store_hl
1373 1378
1374 dd 00110100 inc_ixd 1379 dd 00110100 inc_ixd
1375 local tmp 8 1380 local tmp 8
1376 z80_fetch_index ix 1381 z80_fetch_index ix
1459 #or add some syntax to force a certain size on an operation so they are unnecessary 1464 #or add some syntax to force a certain size on an operation so they are unnecessary
1460 mov scratch1 tmp 1465 mov scratch1 tmp
1461 sub 1 tmp tmp 1466 sub 1 tmp tmp
1462 update_flags SZYHVXN1 1467 update_flags SZYHVXN1
1463 mov tmp scratch1 1468 mov tmp scratch1
1469 cycles 1
1464 z80_store_hl 1470 z80_store_hl
1465 1471
1466 dd 00110101 dec_ixd 1472 dd 00110101 dec_ixd
1467 local tmp 8 1473 local tmp 8
1468 z80_fetch_index ix 1474 z80_fetch_index ix