valter/dosbox-staging
1
0
Fork 0
Code Releases Activity

Fix carry flag for ROR instructions

Browse source 
Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@2036
This commit is contained in:
Sjoerd van der Berg 2004-10-23 15:25:47 +00:00
parent 232541c358
commit 4d7944fe9c
1 changed files with 3 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
src/cpu/instructions.h
View file

@ -269,7 +269,7 @@
lf_resb=(lf_var1b >> lf_var2b) | \
(lf_var1b << (8-lf_var2b)); \
save(op1,lf_resb); \
SETFLAGBIT(CF,lf_resb & 1); \
SETFLAGBIT(CF,lf_resb & 0x80); \
if (lf_var2b == 1) SETFLAGBIT(OF,(lf_resb ^ lf_var1b) & 0x80);
#define RORW(op1,op2,load,save) \
@ -280,7 +280,7 @@
lf_resw=(lf_var1w >> lf_var2b) | \
(lf_var1w << (16-lf_var2b)); \
save(op1,lf_resw); \
SETFLAGBIT(CF,lf_resw & 1); \
SETFLAGBIT(CF,lf_resw & 0x8000); \
if (lf_var2b == 1) SETFLAGBIT(OF,(lf_resw ^ lf_var1w) & 0x8000);
#define RORD(op1,op2,load,save) \
@ -291,7 +291,7 @@
lf_resd=(lf_var1d >> lf_var2b) | \
(lf_var1d << (32-lf_var2b)); \
save(op1,lf_resd); \
SETFLAGBIT(CF,lf_resd & 1); \
SETFLAGBIT(CF,lf_resd & 0x80000000); \
if (lf_var2b == 1) SETFLAGBIT(OF,(lf_resd ^ lf_var1d) & 0x80000000);