mirror of https://github.com/PCSX2/pcsx2.git
modified the Denormals speed hack; now its "disable underflow checks". -leaving it unchecked makes PCSX2 handle underflow like the real PS2 does. -checking it disables underflow checks and is a bit faster. -making it "grey" sets the DaZ flag, which is what causes the big speedup for intel CPU's.
the funny thing is that leaving it checked (black) sometimes fixes games (fixes minor graphic corruption in Initial D: Special Stage) so try experimenting with it on/off/greyed to see if it fixes graphics for your game. also, you no longer have to restart PCSX2 for the DaZ hack to work :p git-svn-id: http://pcsx2-playground.googlecode.com/svn/trunk@74 a6443dda-0b58-4228-96e9-037be469359c
This commit is contained in:
cottonvibes
Gregory Hainaut
parent
90a9260c26
commit
3bd19c5c7b
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@ -58,7 +58,8 @@
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#define CHECK_EESYNC_HACK (Config.Hacks & 0x1)
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#define CHECK_IOPSYNC_HACK (Config.Hacks & 0x10)
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#define CHECK_EE_IOP_EXTRA (Config.Hacks & 0x20)
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#define CHECK_DENORMALS ((Config.Hacks & 0x8) ? 0xffc0 : 0x7f80) //If enabled, Denormals are Zero for the recs and flush to zero is enabled as well
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#define CHECK_UNDERFLOW (!(Config.Hacks & 0x8))
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#define CHECK_DENORMALS ((Config.Hacks & 0x400) ? 0xffc0 : 0x7f80) //If enabled, Denormals are Zero for the recs and flush to zero is enabled as well
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#define CHECK_FASTBRANCHES (Config.Hacks & 0x80)
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#define CHECK_VUCLIPHACK (Config.Hacks & 0x100) // Special Fix for GoW, updates the clipflag differently in recVUMI_CLIP() (note: turning this hack on, breaks Rockstar games)
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#define CHECK_FPUCLAMPHACK (Config.Hacks & 0x200) // Special Fix for GT4, different clamping for FPU (Note: sets negative infinity to positive fMax when clamping, which the real ps2 doesn't do)
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@ -47,6 +47,7 @@
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#include "iCore.h"
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#include "iVUzerorec.h"
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#include "patch.h"
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#include "cheats/cheats.h"
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#include "../Paths.h"
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@ -57,6 +58,9 @@ static int efile;
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char filename[256];
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extern int g_SaveGSStream;
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extern u32 g_sseMXCSR;
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extern u32 g_sseVUMXCSR;
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static int AccBreak = 0;
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int needReset = 1;
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unsigned int langsMax;
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@ -730,6 +734,7 @@ BOOL APIENTRY HacksProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam) {
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if(Config.Hacks & 0x80) CheckDlgButton(hDlg, IDC_FASTBRANCHES, TRUE);
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if(Config.Hacks & 0x100) CheckDlgButton(hDlg, IDC_VUCLIPHACK, TRUE);
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if(Config.Hacks & 0x200) CheckDlgButton(hDlg, IDC_FPUCLAMPHACK, TRUE);
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if(Config.Hacks & 0x400) CheckDlgButton(hDlg, IDC_DENORMALS, 2);
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return TRUE;
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@ -739,13 +744,16 @@ BOOL APIENTRY HacksProc(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam) {
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Config.Hacks |= IsDlgButtonChecked(hDlg, IDC_SYNCHACK) ? 0x1 : 0;
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Config.Hacks |= IsDlgButtonChecked(hDlg, IDC_OVERFLOWHACK) ? 0x2 : 0;
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Config.Hacks |= IsDlgButtonChecked(hDlg, IDC_SOUNDHACK) ? 0x4 : 0;
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Config.Hacks |= IsDlgButtonChecked(hDlg, IDC_DENORMALS) ? 0x8 : 0;
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Config.Hacks |= IsDlgButtonChecked(hDlg, IDC_SYNCHACK2) ? 0x10 : 0;
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Config.Hacks |= IsDlgButtonChecked(hDlg, IDC_SYNCHACK3) ? 0x20 : 0;
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Config.Hacks |= IsDlgButtonChecked(hDlg, IDC_OVERFLOWHACK_EXTRA) ? 0x40 : 0;
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Config.Hacks |= IsDlgButtonChecked(hDlg, IDC_FASTBRANCHES) ? 0x80 : 0;
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Config.Hacks |= IsDlgButtonChecked(hDlg, IDC_VUCLIPHACK) ? 0x100 : 0;
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Config.Hacks |= IsDlgButtonChecked(hDlg, IDC_FPUCLAMPHACK) ? 0x200 : 0;
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Config.Hacks |= ( IsDlgButtonChecked(hDlg, IDC_DENORMALS) == 2 ) ? 0x408 : (IsDlgButtonChecked(hDlg, IDC_DENORMALS) ? 0x8 : 0); // 0x408 == greyed checkbox (DaZ SSE flag; so the CPU sets denormals to zero)
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g_sseVUMXCSR = CHECK_DENORMALS;
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SetCPUState(g_sseMXCSR, g_sseVUMXCSR);
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SaveConfig();
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@ -950,7 +950,7 @@ BEGIN
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CONTROL "Disable All Overflow Checks - Doesn't check for overflow at all in the VU Recs.",IDC_OVERFLOWHACK,
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"Button",BS_AUTOCHECKBOX | WS_TABSTOP,14,63,373,10
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CTEXT "These hacks will effect the speed of PCSX2 but possibly comprimise on compatability",IDC_HACKDESC,7,7,392,8
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CONTROL "Tighter SPU2 Sync ( FFXII vids) - Slower, not useful anymore.",IDC_SOUNDHACK,
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CONTROL "Tighter SPU2 Sync ( FFXII vids) - Slower, not very useful anymore.",IDC_SOUNDHACK,
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"Button",BS_AUTOCHECKBOX | WS_TABSTOP,14,197,323,10
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CONTROL "IOP Sync Hack (x2) - Doubles the cycle rate of the IOP.",IDC_SYNCHACK2,
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"Button",BS_AUTOCHECKBOX | WS_TABSTOP,14,128,270,10
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@ -958,12 +958,12 @@ BEGIN
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"Button",BS_AUTOCHECKBOX | WS_TABSTOP,14,142,359,10
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CONTROL "Enable Extra Overflow Checks - Enable extra overflow checks used to help stop SPS. ( Slow! )",IDC_OVERFLOWHACK_EXTRA,
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"Button",BS_AUTOCHECKBOX | WS_TABSTOP,14,50,377,10
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CONTROL "EE/IOP Fast Branches - Quick branching ( Very small speedup, use only when you need every fps! )",IDC_FASTBRANCHES,
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CONTROL "EE/IOP Fast Branches - Quick branching ( Very small speedup; Not Recommended! )",IDC_FASTBRANCHES,
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"Button",BS_AUTOCHECKBOX | WS_TABSTOP,14,183,351,10
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CTEXT "If you have problems, disable all these and try again",IDC_STATIC,7,22,392,8
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GROUPBOX "Overflow and Underflow",IDC_STATIC,7,36,392,60
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CONTROL "Denormals are Zero - Makes very small numbers equal zero. ( Big speedup on Intel CPUs ) ( Needs Restart! )",IDC_DENORMALS,
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"Button",BS_AUTOCHECKBOX | WS_TABSTOP,14,76,377,10
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CONTROL "Disable Underflow Checks - ( Checked = Small Speedup. ) ( Grey = DaZ Flag; Big Speedup for Intel CPU's! )",IDC_DENORMALS,
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"Button",BS_AUTO3STATE | WS_TABSTOP,14,76,377,10
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GROUPBOX "Sync Hacks",IDC_STATIC,7,101,392,59
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GROUPBOX "Miscellaneous / Special Game Fixes",IDC_STATIC,7,168,392,76
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CONTROL "VU Clip Hack - Special fix for God of War; Breaks Rockstar games!",IDC_VUCLIPHACK,
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@ -1432,7 +1432,7 @@ void recUpdateFlags(VURegs * VU, int reg, int info)
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SHL32ItoR(x86macflag, 4); // Shift the Overflow and Underflow flags left 4
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//-------------------------Optional Code: Denormals Are Zero------------------------------
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if (!(Config.Hacks & 0x8)) { //only use if denormals hack is off
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if (CHECK_UNDERFLOW) { // Sets underflow/denormals to zero
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SSE_ANDNPS_XMM_to_XMM(EEREC_TEMP, reg); // EEREC_TEMP = !EEREC_TEMP & reg
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// Now we have Denormals are Positive Zero in EEREC_TEMP; the next two lines take Signed Zero into account
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SSE_ANDPS_M128_to_XMM(reg, (uptr)&VU_Signed_Zero_Mask[ 0 ]);
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@ -1546,7 +1546,7 @@ void recUpdateFlags(VURegs * VU, int reg, int info)
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SHL32ItoR(x86macflag, 4); // Shift the Overflow and Underflow flags left 4
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//-------------------------Optional Code: Denormals Are Zero------------------------------
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if (!(Config.Hacks & 0x8)) { //only use if denormals hack is off
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if (CHECK_UNDERFLOW) { // Sets underflow/denormals to zero
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SSE_ANDNPS_XMM_to_XMM(t1reg, reg); // t1reg = !t1reg & reg
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// Now we have Denormals are Positive Zero in t1reg; the next two lines take Signed Zero into account
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SSE_ANDPS_M128_to_XMM(reg, (uptr)&VU_Signed_Zero_Mask[ 0 ]);
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@ -1450,7 +1450,7 @@ void eeFPURecompileCode(R5900FNPTR_INFO xmmcode, R5900FNPTR_INFO fpucode, int xm
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extern u8 g_MACFlagTransform[256]; // for vus
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u32 g_sseMXCSR = 0x9fc0; //0x9fc0 disable all exception, round to 0, flush to 0
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u32 g_sseVUMXCSR = 0;
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u32 g_sseVUMXCSR = 0x7f80;
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void SetCPUState(u32 sseMXCSR, u32 sseVUMXCSR)
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{
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