RaySollium99/picodrive
1
0
Fork 0
mirror of https://github.com/RaySollium99/picodrive.git synced 2025-09-05 07:17:45 -04:00
Code Issues Projects Releases Packages Wiki Activity Actions

optimizations, bugfixes, uae works (but with timing glitches?)

Browse source 
git-svn-id: file:///home/notaz/opt/svn/PicoDrive@191 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-07-14 22:07:41 +00:00
parent 2270612aa7
commit ee5e024ce6
8 changed files with 121 additions and 114 deletions
Download patch file Download diff file Expand all files Collapse all files

12
cpu/Cyclone/OpLogic.cpp
View file

@ -307,7 +307,7 @@ int OpExt(int op)
int OpSet(int op)
{
int cc=0,ea=0;
int size=0,use=0;
int size=0,use=0,changed_cycles=0;
char *cond[16]=
{
"al","", "hi","ls","cc","cs","ne","eq",
@ -325,7 +325,8 @@ int OpSet(int op)
use=OpBase(op,size);
if (op!=use) { OpUse(op,use); return 0; } // Use existing handler
OpStart(op,ea); Cycles=8;
changed_cycles=ea<8 && cc>=2;
OpStart(op,ea,0,changed_cycles); Cycles=8;
if (ea<8) Cycles=4;
if (cc)
@ -362,7 +363,7 @@ int OpSet(int op)
EaCalc (0,0x003f, ea,size,0,0);
EaWrite(0, 1, ea,size,0x003f,0,0);
OpEnd(ea);
OpEnd(ea,0,changed_cycles);
return 0;
}
@ -586,7 +587,6 @@ int OpAsr(int op)
int count=0,dir=0;
int size=0,usereg=0,type=0;
ea=0;
count =(op>>9)&7;
dir =(op>>8)&1;
size =(op>>6)&3;
@ -605,7 +605,7 @@ int OpAsr(int op)
if (op!=use) { OpUse(op,use); return 0; } // Use existing handler
OpStart(op); Cycles=size<2?6:8;
OpStart(op,ea,0,count<0); Cycles=size<2?6:8;
EaCalc(10,0x0007, ea,size,1);
EaRead(10, 0, ea,size,0x0007,1);
@ -614,7 +614,7 @@ int OpAsr(int op)
EaWrite(10, 0, ea,size,0x0007,1);
OpEnd();
OpEnd(ea,0,count<0);
return 0;
}