Apple-2-Tools/apple2ix
1
0
Fork 0
mirror of https://github.com/mauiaaron/apple2.git synced 2024-07-05 15:28:59 +00:00
Code Issues Projects Releases Wiki Activity

Refactoring: shifting to avoid stack hit

Browse Source
This commit is contained in:
Aaron Culliney 2014-06-07 13:40:18 -07:00
parent 05e10b7eb8
commit 30cf264aa6
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/x86/cpu.S
View File

@ -82,7 +82,7 @@
#define BranchXCycles \
incb DebugCycleCount; /* +1 branch taken */ \
pushl %ebx; \
shll $16, %ebx; \
movw PC_Reg, %bx; \
cbw; \
addw %bx, %ax; \
@ -90,7 +90,7 @@
cmpb %ah, %bh; \
je 9f; \
incb DebugCycleCount; /* +1 branch new page */ \
9: popl %ebx;
9: shrl $16, %ebx;
#define FlagC lahf; \
andb $C_Flag, %ah; \