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comparison z80.cpu @ 1739:435877da5837

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Fixed flag calculation in dec (hl) in new Z80 core
author Michael Pavone <pavone@retrodev.com>
date Mon, 04 Feb 2019 22:02:59 -0800
parents d6157b7eb20c
children 28ab56ff8cea
comparison
equal deleted inserted replaced
1738:d6157b7eb20c 1739:435877da5837
1365 update_flags SZYHVXN1 1365 update_flags SZYHVXN1
1366 and 0xFF00 iy iy 1366 and 0xFF00 iy iy
1367 or tmp iy iy 1367 or tmp iy iy
1368 1368
1369 00110101 dec_hl 1369 00110101 dec_hl
1370 local tmp 8
1370 z80_fetch_hl 1371 z80_fetch_hl
1371 #TODO: fix size 1372 #TODO: Either make DSL compiler smart enough to optimize these unnecessary moves out
1372 sub 1 scratch1 scratch1 1373 #or add some syntax to force a certain size on an operation so they are unnecessary
1374 mov scratch1 tmp
1375 sub 1 tmp tmp
1373 update_flags SZYHVXN1 1376 update_flags SZYHVXN1
1377 mov tmp scratch1
1374 z80_store_hl 1378 z80_store_hl
1375 1379
1376 dd 00110101 dec_ixd 1380 dd 00110101 dec_ixd
1377 local tmp 8 1381 local tmp 8
1378 z80_fetch_index ix 1382 z80_fetch_index ix