ShuriZma
/
pcsx2
mirror of https://github.com/PCSX2/pcsx2.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

More work on cycles. FPU is slower than assumed earlier. 

Also added COP0 DIE bit handling, that disables the EE's dual issue capabilities.

git-svn-id: http://pcsx2.googlecode.com/svn/trunk@1029 96395faa-99c1-11dd-bbfe-3dabce05a288
This commit is contained in:
ramapcsx2 2009-04-20 01:40:13 +00:00
parent b21b81df9f
commit 3ee59f3f4e
2 changed files with 6 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
pcsx2/R5900OpcodeTables.cpp
View File

@ -106,7 +106,7 @@ namespace R5900
static const int MMI_Div = 22*8;
static const int MMI_Default = 14;
static const int FPU_Mult = 12;
static const int FPU_Mult = 4*8;
static const int Store = 8;
static const int Load = 8;
@ -432,9 +432,9 @@ namespace R5900
MakeOpcode1( MIN_S, CopDefault );
MakeOpcode1( MUL_S, FPU_Mult );
MakeOpcode1( DIV_S, 3*8 );
MakeOpcode1( SQRT_S, 3*8 );
MakeOpcode1( RSQRT_S, 4*8 );
MakeOpcode1( DIV_S, 6*8 );
MakeOpcode1( SQRT_S, 6*8 );
MakeOpcode1( RSQRT_S, 8*8 );
MakeOpcode1( MULA_S, FPU_Mult );
MakeOpcode1( MADD_S, FPU_Mult );
MakeOpcode1( MSUB_S, FPU_Mult );

3
pcsx2/x86/ix86-32/iR5900-32.cpp
View File

@ -1289,7 +1289,8 @@ void recompileNextInstruction(int delayslot)
return;
}
}
s_nBlockCycles += opcode.cycles;
//If thh COP0 DIE bit is disabled, double the cycles. Happens rarely.
s_nBlockCycles += opcode.cycles * (2 - ((cpuRegs.CP0.n.Config >> 18) & 0x1));
opcode.recompile();
}