diff options
Diffstat (limited to 'z80.cpu')
| -rw-r--r-- | z80.cpu | 35 |
1 files changed, 35 insertions, 0 deletions
@@ -2226,4 +2226,39 @@ dd OOOOOOOO dd_normal fd OOOOOOOO fd_normal dispatch O + +ed 01101111 rld + local tmp 8 + local tmp2 8 + z80_fetch_hl + cycles 4 + + lsr scratch1 4 tmp + + lsl scratch1 4 scratch1 + + and 0xF a tmp2 + or tmp2 scratch1 scratch1 + + and 0xF0 a a + or tmp a a + update_flags SZYH0XPN0 + z80_store_hl + +ed 01100111 rrd + local tmp 8 + local tmp2 8 + z80_fetch_hl + cycles 4 + + and 0xF scratch1 tmp + lsr scratch1 4 scratch1 + + lsl a 4 tmp2 + or tmp2 scratch1 scratch1 + + and 0xF0 a a + or tmp a a + update_flags SZYH0XPN0 + z80_store_hl
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