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Z*) speed optimizations

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FeralChild64 committed 2020-12-19 22:24:23 +01:00
1 parent 9c10a29448
commit ed25e2d250
10 files changed
+337 -288
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src/zvm_m65/z80_instr_jump.s
+9 -9
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@@ -10,60 +10,60 @@ Z80_instr_C3: ; JP nn
sta REG_PC+0
jsr (VEC_fetch_value)
sta REG_PC+1
rts
jmp ZVM_next
Z80_instr_C2: ; JP NZ,nn
bbr6 REG_F,Z80_instr_C3
inw REG_PC
inw REG_PC
rts
jmp ZVM_next
Z80_instr_CA: ; JP Z,nn
bbs6 REG_F,Z80_instr_C3
inw REG_PC
inw REG_PC
rts
jmp ZVM_next
Z80_instr_D2: ; JP NC,nn
bbr0 REG_F,Z80_instr_C3
inw REG_PC
inw REG_PC
rts
jmp ZVM_next
Z80_instr_DA: ; JP C,nn
bbs0 REG_F,Z80_instr_C3
inw REG_PC
inw REG_PC
rts
jmp ZVM_next
Z80_instr_E2: ; JP PO,nn
bbr2 REG_F,Z80_instr_C3
inw REG_PC
inw REG_PC
rts
jmp ZVM_next
Z80_instr_EA: ; JP PE,nn
bbs2 REG_F,Z80_instr_C3
inw REG_PC
inw REG_PC
rts
jmp ZVM_next
Z80_instr_F2: ; JP P,nn
bbr7 REG_F,Z80_instr_C3
inw REG_PC
inw REG_PC
rts
jmp ZVM_next
Z80_instr_FA: ; JP M,nn
bbs7 REG_F,Z80_instr_C3
inw REG_PC
inw REG_PC
rts
jmp ZVM_next