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Code Issues Projects Releases Wiki Activity

Simplify BranchXCycles

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This commit is contained in:
Aaron Culliney 2015-03-22 15:46:58 -07:00
parent 1635cd5245
commit 358541b8cc
1 changed files with 2 additions and 4 deletions
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6
src/arm/cpu.S
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@ -209,14 +209,12 @@
#define pc_hi_next r0
#define BranchXCycles \
_IncOpCycles \
mov pc_hi_prev, PC_Reg; \
mov pc_hi_prev, pc_hi_prev, LSR #8; \
mov pc_hi_prev, PC_Reg, LSR #8; \
cbw; \
add PC_Reg, PC_Reg, r0; /* branch PC */ \
mov PC_Reg, PC_Reg, LSL #16; /* 16bit under/overflow protection */ \
mov PC_Reg, PC_Reg, LSR #16; \
mov pc_hi_next, PC_Reg; \
mov pc_hi_next, pc_hi_next, LSR #8; \
mov pc_hi_next, PC_Reg, LSR #8; \
teq pc_hi_next, pc_hi_prev; \
addne scratch_count, scratch_count, #1; /* +1 branch taken */ \
strb scratch_count, [mem_cycle_count];