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more Z80 optimizations

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FeralChild64 committed 2021-01-01 01:38:39 +01:00
1 parent 05c68cd79d
commit 9e26e7e085
17 files changed
+108 -162
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src/zvm_m65/z80_instr_math_8bit.s
+4 -4
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@@ -612,10 +612,10 @@ Z80_common_INC:
Z80_instr_34: ; INC (HL)
jsr (VEC_fetch_via_HL_back)
jsr (VEC_fetch_via_HL)
tax
inc
sta [PTR_DATA],z
sta [REG_HL],z
bra Z80_common_INC
Z80_instr_DD_34: ; INC (IX+d)
@@ -668,10 +668,10 @@ Z80_common_DEC:
Z80_instr_35: ; DEC (HL)
jsr (VEC_fetch_via_HL_back)
jsr (VEC_fetch_via_HL)
tax
dec
sta [PTR_DATA],z
sta [REG_HL],z
bra Z80_common_DEC
Z80_instr_DD_35: ; DEC (IX+d)