mirror of
https://github.com/dborth/snes9xgx.git
synced 2024-11-23 19:19:22 +01:00
Merge pull request #725 from emukidid/master
More GameCube optimisations
This commit is contained in:
dborth
GitHub
commit
8ea78dde4a
10
Makefile.gc
10
Makefile.gc
@ -20,22 +20,22 @@ TARGETDIR := executables
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BUILD := build_gc
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SOURCES := source source/images source/sounds source/fonts source/lang \
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source/gui source/utils source/utils/sz \
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source/snes9x source/snes9x/apu
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source/snes9x source/snes9x/apu source/utils/vm
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INCLUDES := source source/snes9x
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#---------------------------------------------------------------------------------
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# options for code generation
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#---------------------------------------------------------------------------------
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CFLAGS = -g -O3 -LTO -Wall $(MACHDEP) $(INCLUDE) -DNO_SOUND \
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LTO = -flto
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CFLAGS = -g -O3 $(LTO) -Wall $(MACHDEP) $(INCLUDE) -DNO_SOUND \
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-DHAVE_STDINT_H -DBLARGG_NONPORTABLE -DBLARGG_BIG_ENDIAN -DBLARGG_CPU_POWERPC \
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-DZLIB -DRIGHTSHIFT_IS_SAR -DCPU_SHUTDOWN -DCORRECT_VRAM_READS \
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-D_SZ_ONE_DIRECTORY -D_LZMA_IN_CB -D_LZMA_OUT_READ \
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-D_SZ_ONE_DIRECTORY -D_LZMA_IN_CB -D_LZMA_OUT_READ -DUSE_VM \
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-fomit-frame-pointer \
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-Wno-unused-parameter -Wno-strict-aliasing \
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-Wno-write-strings -Wno-parentheses
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CXXFLAGS = $(CFLAGS)
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LDFLAGS = -g $(MACHDEP) -LTO -Wl,-Map,$(notdir $@).map
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LDFLAGS = -g $(MACHDEP) $(LTO) -Wl,-Map,$(notdir $@).map
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#---------------------------------------------------------------------------------
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# any extra libraries we wish to link with the project
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@ -57,9 +57,15 @@ static GuiImageData * pointer[4];
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#define MEM_ALLOC(A) (u8*)mem2_malloc(A)
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#define MEM_DEALLOC(A) mem2_free(A)
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#else
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#ifdef USE_VM
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#include "vmalloc.h"
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#define MEM_ALLOC(A) (u8*)vm_malloc(A)
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#define MEM_DEALLOC(A) vm_free(A)
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#else
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#define MEM_ALLOC(A) (u8*)memalign(32, A)
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#define MEM_DEALLOC(A) free(A)
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#endif
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#endif
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static GuiTrigger * trigA = NULL;
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static GuiTrigger * trig2 = NULL;
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@ -1213,7 +1219,27 @@ static int MenuGame()
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GuiText titleTxt((char *)Memory.ROMFilename, 22, (GXColor){255, 255, 255, 255});
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titleTxt.SetAlignment(ALIGN_LEFT, ALIGN_TOP);
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titleTxt.SetPosition(50,50);
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titleTxt.SetPosition(50,40);
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char memInfo[128];
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memset(&memInfo[0], 0, 128);
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#ifdef USE_VM
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sprintf(&memInfo[0], "Memory Free: RAM %.2fMB VM %.2fMB"
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,((float)((u32)SYS_GetArena1Hi()-(u32)SYS_GetArena1Lo())/1024/1024)
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,((float)(vm_size_free())/1024/1024));
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#else
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#ifdef HW_RVL
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sprintf(&memInfo[0], "Memory Free: MEM1 %.2fMB MEM2 %.2fMB"
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,((float)((u32)SYS_GetArena1Hi()-(u32)SYS_GetArena1Lo())/1024/1024)
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,((float)((u32)SYS_GetArena2Hi()-(u32)SYS_GetArena2Lo())/1024/1024));
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#else
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sprintf(&memInfo[0], "Memory Free: RAM %.2fMB"
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,((float)((u32)SYS_GetArena1Hi()-(u32)SYS_GetArena1Lo())/1024/1024));
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#endif
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#endif
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GuiText memTxt(memInfo, 18, (GXColor){255, 255, 255, 255});
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memTxt.SetAlignment(ALIGN_LEFT, ALIGN_TOP);
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memTxt.SetPosition(50,70);
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GuiSound btnSoundOver(button_over_pcm, button_over_pcm_size, SOUND_PCM);
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GuiSound btnSoundClick(button_click_pcm, button_click_pcm_size, SOUND_PCM);
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@ -1398,6 +1424,7 @@ static int MenuGame()
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HaltGui();
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GuiWindow w(screenwidth, screenheight);
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w.Append(&titleTxt);
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w.Append(&memTxt);
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w.Append(&saveBtn);
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w.Append(&loadBtn);
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w.Append(&deleteBtn);
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@ -1424,6 +1451,7 @@ static int MenuGame()
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bgTopImg->SetEffect(EFFECT_SLIDE_TOP | EFFECT_SLIDE_IN, 35);
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closeBtn.SetEffect(EFFECT_SLIDE_TOP | EFFECT_SLIDE_IN, 35);
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titleTxt.SetEffect(EFFECT_SLIDE_TOP | EFFECT_SLIDE_IN, 35);
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memTxt.SetEffect(EFFECT_SLIDE_TOP | EFFECT_SLIDE_IN, 35);
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mainmenuBtn.SetEffect(EFFECT_SLIDE_BOTTOM | EFFECT_SLIDE_IN, 35);
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bgBottomImg->SetEffect(EFFECT_SLIDE_BOTTOM | EFFECT_SLIDE_IN, 35);
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btnLogo->SetEffect(EFFECT_SLIDE_BOTTOM | EFFECT_SLIDE_IN, 35);
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@ -1547,6 +1575,7 @@ static int MenuGame()
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bgTopImg->SetEffect(EFFECT_SLIDE_TOP | EFFECT_SLIDE_OUT, 15);
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closeBtn.SetEffect(EFFECT_SLIDE_TOP | EFFECT_SLIDE_OUT, 15);
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titleTxt.SetEffect(EFFECT_SLIDE_TOP | EFFECT_SLIDE_OUT, 15);
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memTxt.SetEffect(EFFECT_SLIDE_TOP | EFFECT_SLIDE_OUT, 15);
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mainmenuBtn.SetEffect(EFFECT_SLIDE_BOTTOM | EFFECT_SLIDE_OUT, 15);
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bgBottomImg->SetEffect(EFFECT_SLIDE_BOTTOM | EFFECT_SLIDE_OUT, 15);
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btnLogo->SetEffect(EFFECT_SLIDE_BOTTOM | EFFECT_SLIDE_OUT, 15);
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@ -208,6 +208,9 @@
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extern int WiiFileLoader();
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extern void WiiSetupCheats();
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#endif
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#ifdef USE_VM
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#include "vmalloc.h"
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#endif
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#ifndef SET_UI_COLOR
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#define SET_UI_COLOR(r, g, b) ;
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@ -1070,7 +1073,11 @@ bool8 CMemory::Init (void)
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RAM = (uint8 *) memalign(32,0x20000);
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SRAM = (uint8 *) memalign(32,0x20000);
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VRAM = (uint8 *) memalign(32,0x10000);
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#ifdef USE_VM
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ROM = (uint8 *) vm_malloc(MAX_ROM_SIZE + 0x200 + 0x8000);
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#else
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ROM = (uint8 *) memalign(32,MAX_ROM_SIZE + 0x200 + 0x8000);
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#endif
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IPPU.TileCache[TILE_2BIT] = (uint8 *) memalign(32,MAX_2BIT_TILES * 64);
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IPPU.TileCache[TILE_4BIT] = (uint8 *) memalign(32,MAX_4BIT_TILES * 64);
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@ -1178,7 +1185,11 @@ void CMemory::Deinit (void)
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if (ROM)
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{
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ROM -= 0x8000;
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#ifdef USE_VM
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vm_free(ROM);
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#else
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free(ROM);
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#endif
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ROM = NULL;
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}
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@ -187,7 +187,11 @@ struct CMemory
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{
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enum
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#ifdef HW_DOL
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#ifdef USE_VM
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{ MAX_ROM_SIZE = 0x800000 };
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#else
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{ MAX_ROM_SIZE = 0x600000 };
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#endif
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#else
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{ MAX_ROM_SIZE = 0x800000 };
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#endif
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@ -27,6 +27,9 @@
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#include <wiiuse/wpad.h>
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#include <wupc/wupc.h>
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#endif
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#ifdef USE_VM
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#include "vmalloc.h"
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#endif
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#include "snes9xgx.h"
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#include "networkop.h"
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@ -58,6 +61,9 @@ char appPath[1024] = { 0 };
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static int currentMode;
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extern "C" {
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#ifdef USE_VM
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#include "utils/vm/vm.h"
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#endif
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extern char* strcasestr(const char *, const char *);
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extern void __exception_setreload(int t);
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}
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@ -363,6 +369,10 @@ extern "C" {
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int main(int argc, char *argv[])
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{
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#ifdef USE_VM
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VM_Init(ARAM_SIZE, MRAM_BACKING); // Setup Virtual Memory with the entire ARAM
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#endif
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#ifdef HW_RVL
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L2Enhance();
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@ -443,8 +453,13 @@ int main(int argc, char *argv[])
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savebuffer = (unsigned char *)mem2_malloc(SAVEBUFFERSIZE);
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browserList = (BROWSERENTRY *)mem2_malloc(sizeof(BROWSERENTRY)*MAX_BROWSER_SIZE);
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#else
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savebuffer = (unsigned char *)malloc(SAVEBUFFERSIZE);
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browserList = (BROWSERENTRY *)malloc(sizeof(BROWSERENTRY)*MAX_BROWSER_SIZE);
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#ifdef USE_VM
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savebuffer = (unsigned char *)vm_malloc(SAVEBUFFERSIZE);
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browserList = (BROWSERENTRY *)vm_malloc(sizeof(BROWSERENTRY)*MAX_BROWSER_SIZE);
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#else
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savebuffer = (unsigned char *)memalign(32,SAVEBUFFERSIZE);
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browserList = (BROWSERENTRY *)memalign(32,sizeof(BROWSERENTRY)*MAX_BROWSER_SIZE);
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#endif
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#endif
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InitGUIThreads();
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338
source/utils/vm/asm.h
Normal file
338
source/utils/vm/asm.h
Normal file
@ -0,0 +1,338 @@
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#ifndef __ASM_H__
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#define __ASM_H__
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#ifdef _LANGUAGE_ASSEMBLY
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/* Condition Register Bit Fields */
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#define cr0 0
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#define cr1 1
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#define cr2 2
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#define cr3 3
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#define cr4 4
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#define cr5 5
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#define cr6 6
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#define cr7 7
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/* General Purpose Registers (GPRs) */
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#define r0 0
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#define r1 1
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#define sp 1
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#define r2 2
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#define toc 2
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#define r3 3
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#define r4 4
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#define r5 5
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#define r6 6
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#define r7 7
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#define r8 8
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#define r9 9
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#define r10 10
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#define r11 11
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#define r12 12
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#define r13 13
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#define r14 14
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#define r15 15
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#define r16 16
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#define r17 17
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#define r18 18
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#define r19 19
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#define r20 20
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#define r21 21
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#define r22 22
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#define r23 23
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#define r24 24
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#define r25 25
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#define r26 26
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#define r27 27
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#define r28 28
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#define r29 29
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#define r30 30
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#define r31 31
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/* Floating Point Registers (FPRs) */
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#define fr0 0
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#define fr1 1
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#define fr2 2
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#define fr3 3
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#define fr4 4
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#define fr5 5
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#define fr6 6
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#define fr7 7
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#define fr8 8
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#define fr9 9
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#define fr10 10
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#define fr11 11
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#define fr12 12
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#define fr13 13
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#define fr14 14
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#define fr15 15
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#define fr16 16
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#define fr17 17
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#define fr18 18
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#define fr19 19
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#define fr20 20
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#define fr21 21
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#define fr22 22
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#define fr23 23
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#define fr24 24
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#define fr25 25
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#define fr26 26
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#define fr27 27
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#define fr28 28
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#define fr29 29
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#define fr30 30
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#define fr31 31
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#define vr0 0
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#define vr1 1
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#define vr2 2
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#define vr3 3
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#define vr4 4
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#define vr5 5
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#define vr6 6
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#define vr7 7
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#define vr8 8
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#define vr9 9
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#define vr10 10
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#define vr11 11
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#define vr12 12
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#define vr13 13
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#define vr14 14
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#define vr15 15
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#define vr16 16
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#define vr17 17
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#define vr18 18
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#define vr19 19
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#define vr20 20
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#define vr21 21
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#define vr22 22
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#define vr23 23
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#define vr24 24
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#define vr25 25
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#define vr26 26
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#define vr27 27
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#define vr28 28
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#define vr29 29
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#define vr30 30
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#define vr31 31
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#endif //_LANGUAGE_ASSEMBLY
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#define SPRG0 272
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#define SPRG1 273
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#define SPRG2 274
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#define SPRG3 275
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#define PMC1 953
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#define PMC2 954
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#define PMC3 957
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#define PMC4 958
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#define MMCR0 952
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#define MMCR1 956
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#define LINK_REGISTER_CALLEE_UPDATE_ROOM 4
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#define EXCEPTION_NUMBER 8
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#define SRR0_OFFSET 12
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#define SRR1_OFFSET 16
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#define GPR0_OFFSET 20
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#define GPR1_OFFSET 24
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#define GPR2_OFFSET 28
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#define GPR3_OFFSET 32
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#define GPR4_OFFSET 36
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#define GPR5_OFFSET 40
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#define GPR6_OFFSET 44
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#define GPR7_OFFSET 48
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#define GPR8_OFFSET 52
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#define GPR9_OFFSET 56
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#define GPR10_OFFSET 60
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#define GPR11_OFFSET 64
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#define GPR12_OFFSET 68
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#define GPR13_OFFSET 72
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#define GPR14_OFFSET 76
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#define GPR15_OFFSET 80
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#define GPR16_OFFSET 84
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#define GPR17_OFFSET 88
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#define GPR18_OFFSET 92
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#define GPR19_OFFSET 96
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#define GPR20_OFFSET 100
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#define GPR21_OFFSET 104
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#define GPR22_OFFSET 108
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#define GPR23_OFFSET 112
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#define GPR24_OFFSET 116
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#define GPR25_OFFSET 120
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#define GPR26_OFFSET 124
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#define GPR27_OFFSET 128
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#define GPR28_OFFSET 132
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#define GPR29_OFFSET 136
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#define GPR30_OFFSET 140
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#define GPR31_OFFSET 144
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#define GQR0_OFFSET 148
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#define GQR1_OFFSET 152
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#define GQR2_OFFSET 156
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#define GQR3_OFFSET 160
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#define GQR4_OFFSET 164
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#define GQR5_OFFSET 168
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#define GQR6_OFFSET 172
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#define GQR7_OFFSET 176
|
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|
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#define CR_OFFSET 180
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#define LR_OFFSET 184
|
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#define CTR_OFFSET 188
|
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#define XER_OFFSET 192
|
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#define MSR_OFFSET 196
|
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#define DAR_OFFSET 200
|
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|
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#define STATE_OFFSET 204
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#define MODE_OFFSET 206
|
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|
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#define FPR0_OFFSET 208
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#define FPR1_OFFSET 216
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#define FPR2_OFFSET 224
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#define FPR3_OFFSET 232
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#define FPR4_OFFSET 240
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#define FPR5_OFFSET 248
|
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#define FPR6_OFFSET 256
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#define FPR7_OFFSET 264
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||||
#define FPR8_OFFSET 272
|
||||
#define FPR9_OFFSET 280
|
||||
#define FPR10_OFFSET 288
|
||||
#define FPR11_OFFSET 296
|
||||
#define FPR12_OFFSET 304
|
||||
#define FPR13_OFFSET 312
|
||||
#define FPR14_OFFSET 320
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||||
#define FPR15_OFFSET 328
|
||||
#define FPR16_OFFSET 336
|
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#define FPR17_OFFSET 344
|
||||
#define FPR18_OFFSET 352
|
||||
#define FPR19_OFFSET 360
|
||||
#define FPR20_OFFSET 368
|
||||
#define FPR21_OFFSET 376
|
||||
#define FPR22_OFFSET 384
|
||||
#define FPR23_OFFSET 392
|
||||
#define FPR24_OFFSET 400
|
||||
#define FPR25_OFFSET 408
|
||||
#define FPR26_OFFSET 416
|
||||
#define FPR27_OFFSET 424
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||||
#define FPR28_OFFSET 432
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||||
#define FPR29_OFFSET 440
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||||
#define FPR30_OFFSET 448
|
||||
#define FPR31_OFFSET 456
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|
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#define FPSCR_OFFSET 464
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|
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#define PSR0_OFFSET 472
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#define PSR1_OFFSET 480
|
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#define PSR2_OFFSET 488
|
||||
#define PSR3_OFFSET 496
|
||||
#define PSR4_OFFSET 504
|
||||
#define PSR5_OFFSET 512
|
||||
#define PSR6_OFFSET 520
|
||||
#define PSR7_OFFSET 528
|
||||
#define PSR8_OFFSET 536
|
||||
#define PSR9_OFFSET 544
|
||||
#define PSR10_OFFSET 552
|
||||
#define PSR11_OFFSET 560
|
||||
#define PSR12_OFFSET 568
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#define PSR13_OFFSET 576
|
||||
#define PSR14_OFFSET 584
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||||
#define PSR15_OFFSET 592
|
||||
#define PSR16_OFFSET 600
|
||||
#define PSR17_OFFSET 608
|
||||
#define PSR18_OFFSET 616
|
||||
#define PSR19_OFFSET 624
|
||||
#define PSR20_OFFSET 632
|
||||
#define PSR21_OFFSET 640
|
||||
#define PSR22_OFFSET 648
|
||||
#define PSR23_OFFSET 656
|
||||
#define PSR24_OFFSET 664
|
||||
#define PSR25_OFFSET 672
|
||||
#define PSR26_OFFSET 680
|
||||
#define PSR27_OFFSET 688
|
||||
#define PSR28_OFFSET 696
|
||||
#define PSR29_OFFSET 704
|
||||
#define PSR30_OFFSET 712
|
||||
#define PSR31_OFFSET 720
|
||||
/*
|
||||
* maintain the EABI requested 8 bytes aligment
|
||||
* As SVR4 ABI requires 16, make it 16 (as some
|
||||
* exception may need more registers to be processed...)
|
||||
*/
|
||||
#define EXCEPTION_FRAME_END 728
|
||||
|
||||
#define IBAT0U 528
|
||||
#define IBAT0L 529
|
||||
#define IBAT1U 530
|
||||
#define IBAT1L 531
|
||||
#define IBAT2U 532
|
||||
#define IBAT2L 533
|
||||
#define IBAT3U 534
|
||||
#define IBAT3L 535
|
||||
#define IBAT4U 560
|
||||
#define IBAT4L 561
|
||||
#define IBAT5U 562
|
||||
#define IBAT5L 563
|
||||
#define IBAT6U 564
|
||||
#define IBAT6L 565
|
||||
#define IBAT7U 566
|
||||
#define IBAT7L 567
|
||||
|
||||
#define DBAT0U 536
|
||||
#define DBAT0L 537
|
||||
#define DBAT1U 538
|
||||
#define DBAT1L 539
|
||||
#define DBAT2U 540
|
||||
#define DBAT2L 541
|
||||
#define DBAT3U 542
|
||||
#define DBAT3L 543
|
||||
#define DBAT4U 568
|
||||
#define DBAT4L 569
|
||||
#define DBAT5U 570
|
||||
#define DBAT5L 571
|
||||
#define DBAT6U 572
|
||||
#define DBAT6L 573
|
||||
#define DBAT7U 574
|
||||
#define DBAT7L 575
|
||||
|
||||
#define HID0 1008
|
||||
#define HID1 1009
|
||||
#define HID2 920
|
||||
#define HID4 1011
|
||||
|
||||
#define GQR0 912
|
||||
#define GQR1 913
|
||||
#define GQR2 914
|
||||
#define GQR3 915
|
||||
#define GQR4 916
|
||||
#define GQR5 917
|
||||
#define GQR6 918
|
||||
#define GQR7 919
|
||||
|
||||
#define L2CR 1017
|
||||
|
||||
#define WPAR 921
|
||||
|
||||
#define DMAU 922
|
||||
#define DMAL 923
|
||||
|
||||
#define MSR_RI 0x00000002
|
||||
#define MSR_DR 0x00000010
|
||||
#define MSR_IR 0x00000020
|
||||
#define MSR_IP 0x00000040
|
||||
#define MSR_SE 0x00000400
|
||||
#define MSR_ME 0x00001000
|
||||
#define MSR_FP 0x00002000
|
||||
#define MSR_POW 0x00004000
|
||||
#define MSR_EE 0x00008000
|
||||
|
||||
#define PPC_ALIGNMENT 8
|
||||
|
||||
#define PPC_CACHE_ALIGNMENT 32
|
||||
|
||||
#endif //__ASM_H__
|
||||
71
source/utils/vm/dsihandler.s
Normal file
71
source/utils/vm/dsihandler.s
Normal file
@ -0,0 +1,71 @@
|
||||
/* Copyright 2013 tueidj All Rights Reserved
|
||||
* This code may not be used in any project
|
||||
* without explicit permission from the author.
|
||||
*/
|
||||
|
||||
#include <ppc-asm.h>
|
||||
#include "asm.h"
|
||||
|
||||
.extern vm_dsi_handler
|
||||
.extern default_exceptionhandler
|
||||
|
||||
FUNC_START(dsi_handler)
|
||||
stwu sp,-EXCEPTION_FRAME_END(sp)
|
||||
stw r6,GPR6_OFFSET(sp)
|
||||
stw r7,GPR7_OFFSET(sp)
|
||||
stw r8,GPR8_OFFSET(sp)
|
||||
stw r9,GPR9_OFFSET(sp)
|
||||
stw r10,GPR10_OFFSET(sp)
|
||||
stw r11,GPR11_OFFSET(sp)
|
||||
stw r12,GPR12_OFFSET(sp)
|
||||
mfdsisr r4
|
||||
mfmsr r3
|
||||
ori r3,r3,MSR_RI
|
||||
mtmsr r3
|
||||
|
||||
addi r3,sp,8
|
||||
bl vm_dsi_handler
|
||||
|
||||
# check if it was handled correctly
|
||||
cmplwi r3,0
|
||||
|
||||
lwz r6,GPR6_OFFSET(sp)
|
||||
lwz r7,GPR7_OFFSET(sp)
|
||||
lwz r8,GPR8_OFFSET(sp)
|
||||
lwz r9,GPR9_OFFSET(sp)
|
||||
lwz r10,GPR10_OFFSET(sp)
|
||||
lwz r11,GPR11_OFFSET(sp)
|
||||
lwz r12,GPR12_OFFSET(sp)
|
||||
|
||||
# clear MSR_RI
|
||||
mfmsr r3
|
||||
rlwinm r3,r3,0,31,29
|
||||
mtmsr r3
|
||||
|
||||
bne 1f
|
||||
|
||||
# jump to libogc's default handler
|
||||
addi sp,sp,EXCEPTION_FRAME_END
|
||||
b default_exceptionhandler
|
||||
|
||||
1:
|
||||
lwz r3,CR_OFFSET(sp)
|
||||
lwz r4,LR_OFFSET(sp)
|
||||
lwz r5,CTR_OFFSET(sp)
|
||||
lwz r0,XER_OFFSET(sp)
|
||||
mtcr r3
|
||||
mtlr r4
|
||||
mtctr r5
|
||||
mtxer r0
|
||||
lwz r0,GPR0_OFFSET(sp)
|
||||
lwz r5,GPR5_OFFSET(sp)
|
||||
|
||||
lwz r3,SRR0_OFFSET(sp)
|
||||
lwz r4,SRR1_OFFSET(sp)
|
||||
mtsrr0 r3
|
||||
mtsrr1 r4
|
||||
lwz r3,GPR3_OFFSET(sp)
|
||||
lwz r4,GPR4_OFFSET(sp)
|
||||
lwz sp,GPR1_OFFSET(sp)
|
||||
rfi
|
||||
FUNC_END(dsi_handler)
|
||||
367
source/utils/vm/vm.c
Normal file
367
source/utils/vm/vm.c
Normal file
@ -0,0 +1,367 @@
|
||||
/* Copyright 2013 tueidj All Rights Reserved
|
||||
* This code may not be used in any project
|
||||
* without explicit permission from the author.
|
||||
*/
|
||||
|
||||
#include <gccore.h>
|
||||
#include <stdlib.h>
|
||||
#include <malloc.h>
|
||||
#include <errno.h>
|
||||
#include <ogc/machine/processor.h>
|
||||
#include <ogc/aram.h>
|
||||
#include "vm.h"
|
||||
|
||||
#include <stdio.h>
|
||||
|
||||
typedef u8 vm_page[PAGE_SIZE];
|
||||
|
||||
static p_map phys_map[2048+(PTE_SIZE/PAGE_SIZE)];
|
||||
static vm_map virt_map[65536];
|
||||
static u16 pmap_max, pmap_head;
|
||||
|
||||
static PTE* HTABORG;
|
||||
static vm_page* VM_Base;
|
||||
static vm_page* MEM_Base = NULL;
|
||||
|
||||
static int pagefile_fd = -1;
|
||||
static mutex_t vm_mutex = LWP_MUTEX_NULL;
|
||||
static bool vm_initialized = 0;
|
||||
|
||||
static __inline__ void tlbie(void* p)
|
||||
{
|
||||
asm volatile("tlbie %0" :: "r"(p));
|
||||
}
|
||||
|
||||
static u16 locate_oldest(void)
|
||||
{
|
||||
u16 head = pmap_head;
|
||||
|
||||
for(;;++head)
|
||||
{
|
||||
PTE *p;
|
||||
|
||||
if (head >= pmap_max)
|
||||
head = 0;
|
||||
|
||||
if (!phys_map[head].valid || phys_map[head].locked)
|
||||
continue;
|
||||
|
||||
p = HTABORG+phys_map[head].pte_index;
|
||||
tlbie(VM_Base+phys_map[head].page_index);
|
||||
|
||||
if (p->C)
|
||||
{
|
||||
p->C = 0;
|
||||
phys_map[head].dirty = 1;
|
||||
continue;
|
||||
}
|
||||
|
||||
if (p->R)
|
||||
{
|
||||
p->R = 0;
|
||||
continue;
|
||||
}
|
||||
|
||||
p->data[0] = 0;
|
||||
|
||||
pmap_head = head+1;
|
||||
return head;
|
||||
}
|
||||
}
|
||||
|
||||
static PTE* StorePTE(PTEG pteg, u32 virtual, u32 physical, u8 WIMG, u8 PP, int secondary)
|
||||
{
|
||||
int i;
|
||||
PTE p = {{0}};
|
||||
|
||||
p.valid = 1;
|
||||
p.VSID = VM_VSID;
|
||||
p.hash = secondary ? 1:0;
|
||||
p.API = virtual >> 22;
|
||||
p.RPN = physical >> 12;
|
||||
p.WIMG = WIMG;
|
||||
p.PP = PP;
|
||||
|
||||
for (i=0; i < 8; i++)
|
||||
{
|
||||
if (pteg[i].data[0] == p.data[0])
|
||||
{
|
||||
// printf("Error: address %08x already had a PTE entry\r\n", virtual);
|
||||
// abort();
|
||||
}
|
||||
else if (pteg[i].valid)
|
||||
continue;
|
||||
|
||||
asm volatile("tlbie %0" : : "r"(virtual));
|
||||
pteg[i].data[1] = p.data[1];
|
||||
pteg[i].data[0] = p.data[0];
|
||||
// if (i || secondary)
|
||||
// printf("PTE for address %08x/%08x in PTEG %p index %d (%s)\r\n", virtual, physical, pteg, i, secondary ? "secondary" : "primary");
|
||||
return pteg+i;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static PTEG CalcPTEG(u32 virtual, int secondary)
|
||||
{
|
||||
uint32_t segment_index = (virtual >> 12) & 0xFFFF;
|
||||
u32 ptr = MEM_VIRTUAL_TO_PHYSICAL(HTABORG);
|
||||
u32 hash = segment_index ^ VM_VSID;
|
||||
|
||||
if (secondary) hash = ~hash;
|
||||
|
||||
hash &= (HTABMASK << 10) | 0x3FF;
|
||||
ptr |= hash << 6;
|
||||
|
||||
return (PTEG)MEM_PHYSICAL_TO_K0(ptr);
|
||||
}
|
||||
|
||||
static PTE* insert_pte(u16 index, u32 physical, u8 WIMG, u8 PP)
|
||||
{
|
||||
PTE *pte;
|
||||
int i;
|
||||
u32 virtual = (u32)(VM_Base+index);
|
||||
|
||||
for (i=0; i < 2; i++)
|
||||
{
|
||||
PTEG pteg = CalcPTEG(virtual, i);
|
||||
pte = StorePTE(pteg, virtual, physical, WIMG, PP, i);
|
||||
if (pte)
|
||||
return pte;
|
||||
}
|
||||
|
||||
// printf("Failed to insert PTE for %p\r\n", VM_Base+index);
|
||||
// abort();
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
static void tlbia(void)
|
||||
{
|
||||
int i;
|
||||
for (i=0; i < 64; i++)
|
||||
asm volatile("tlbie %0" :: "r" (i*PAGE_SIZE));
|
||||
}
|
||||
|
||||
/* This definition is wrong, pHndl does not take frame_context* as a parameter,
|
||||
* it has to adjust the stack pointer and finish filling frame_context itself
|
||||
*/
|
||||
void __exception_sethandler(u32 nExcept, void (*pHndl)(frame_context*));
|
||||
extern void default_exceptionhandler();
|
||||
// use our own exception stub because libogc stupidly requires it
|
||||
extern void dsi_handler();
|
||||
|
||||
void* VM_Init(u32 VMSize, u32 MEMSize)
|
||||
{
|
||||
u32 i;
|
||||
u16 index, v_index;
|
||||
|
||||
if (vm_initialized)
|
||||
return VM_Base;
|
||||
|
||||
// parameter checking
|
||||
if (VMSize>MAX_VM_SIZE || MEMSize<MIN_MEM_SIZE || MEMSize>MAX_MEM_SIZE)
|
||||
{
|
||||
errno = EINVAL;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
VMSize = (VMSize+PAGE_SIZE-1)&PAGE_MASK;
|
||||
MEMSize = (MEMSize+PAGE_SIZE-1)&PAGE_MASK;
|
||||
//VM_Base = (vm_page*)(0x80000000 - VMSize);
|
||||
VM_Base = (vm_page*)(ARAM_VM_BASE);
|
||||
pmap_max = MEMSize / PAGE_SIZE + 16;
|
||||
|
||||
// printf("VMSize %08x MEMSize %08x VM_Base %p pmap_max %u\r\n", VMSize, MEMSize, VM_Base, pmap_max);
|
||||
|
||||
if (VMSize <= MEMSize)
|
||||
{
|
||||
errno = EINVAL;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
if (LWP_MutexInit(&vm_mutex, 0) != 0)
|
||||
{
|
||||
errno = ENOLCK;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
pagefile_fd = AR_Init(NULL, 0);
|
||||
// ISFS_Initialize();
|
||||
// doesn't matter if this fails, will be caught when file is opened
|
||||
// ISFS_CreateFile(VM_FILENAME, 0, ISFS_OPEN_RW, ISFS_OPEN_RW, ISFS_OPEN_RW);
|
||||
|
||||
// pagefile_fd = ISFS_Open(VM_FILENAME, ISFS_OPEN_RW);
|
||||
if (pagefile_fd < 0)
|
||||
{
|
||||
errno = ENOENT;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
MEMSize += PTE_SIZE;
|
||||
MEM_Base = (vm_page*)memalign(PAGE_SIZE, MEMSize);
|
||||
|
||||
// printf("MEM_Base: %p\r\n", MEM_Base);
|
||||
|
||||
if (MEM_Base==NULL)
|
||||
{
|
||||
AR_Reset();
|
||||
// ISFS_Close(pagefile_fd);
|
||||
errno = ENOMEM;
|
||||
return NULL;
|
||||
}
|
||||
|
||||
tlbia();
|
||||
DCZeroRange(MEM_Base, MEMSize);
|
||||
HTABORG = (PTE*)(((u32)MEM_Base+0xFFFF)&~0xFFFF);
|
||||
// printf("HTABORG: %p\r\n", HTABORG);
|
||||
|
||||
// attempt to make the pagefile the correct size
|
||||
/* ISFS_Seek(pagefile_fd, 0, SEEK_SET);
|
||||
for (i=0; i<VMSize;)
|
||||
{
|
||||
u32 to_write = VMSize - i;
|
||||
if (to_write > MEMSize)
|
||||
to_write = MEMSize;
|
||||
|
||||
if (ISFS_Write(pagefile_fd, MEM_Base, to_write) != to_write)
|
||||
{
|
||||
free(MEM_Base);
|
||||
ISFS_Close(pagefile_fd);
|
||||
errno = ENOSPC;
|
||||
return NULL;
|
||||
}
|
||||
// printf("Wrote %u bytes to offset %u\r\n", to_write, page);
|
||||
i += to_write;
|
||||
}*/
|
||||
|
||||
// initial commit: map pmap_max pages to fill PTEs with valid RPNs
|
||||
for (index=0,v_index=0; index<pmap_max; ++index,++v_index)
|
||||
{
|
||||
if ((PTE*)(MEM_Base+index) == HTABORG)
|
||||
{
|
||||
// printf("p_map hole: %u -> %u\r\n", index, index+(PTE_SIZE/PAGE_SIZE));
|
||||
for (i=0; i<(PTE_SIZE/PAGE_SIZE); ++i,++index)
|
||||
phys_map[index].valid = 0;
|
||||
|
||||
--index;
|
||||
--v_index;
|
||||
continue;
|
||||
}
|
||||
|
||||
phys_map[index].valid = 1;
|
||||
phys_map[index].locked = 0;
|
||||
phys_map[index].dirty = 0;
|
||||
phys_map[index].page_index = v_index;
|
||||
phys_map[index].pte_index = insert_pte(v_index, MEM_VIRTUAL_TO_PHYSICAL(MEM_Base+index), 0, 0b10) - HTABORG;
|
||||
virt_map[v_index].committed = 0;
|
||||
virt_map[v_index].p_map_index = index;
|
||||
}
|
||||
|
||||
// all indexes up to 65536
|
||||
for (; v_index; ++v_index)
|
||||
{
|
||||
virt_map[v_index].committed = 0;
|
||||
virt_map[v_index].p_map_index = pmap_max;
|
||||
}
|
||||
|
||||
pmap_head = 0;
|
||||
|
||||
// set SDR1
|
||||
mtspr(25, MEM_VIRTUAL_TO_PHYSICAL(HTABORG)|HTABMASK);
|
||||
//printf("SDR1: %08x\r\n", MEM_VIRTUAL_TO_PHYSICAL(HTABORG));
|
||||
// enable SR
|
||||
asm volatile("mtsrin %0,%1" :: "r"(VM_VSID), "r"(VM_Base));
|
||||
// hook DSI
|
||||
__exception_sethandler(EX_DSI, dsi_handler);
|
||||
|
||||
atexit(VM_Deinit);
|
||||
|
||||
vm_initialized = 1;
|
||||
|
||||
return VM_Base;
|
||||
}
|
||||
|
||||
void VM_Deinit(void)
|
||||
{
|
||||
if (!vm_initialized)
|
||||
return;
|
||||
|
||||
// disable SR
|
||||
asm volatile("mtsrin %0,%1" :: "r"(0x80000000), "r"(VM_Base));
|
||||
// restore default DSI handler
|
||||
__exception_sethandler(EX_DSI, default_exceptionhandler);
|
||||
|
||||
free(MEM_Base);
|
||||
MEM_Base = NULL;
|
||||
|
||||
if (vm_mutex != LWP_MUTEX_NULL)
|
||||
{
|
||||
LWP_MutexDestroy(vm_mutex);
|
||||
vm_mutex = LWP_MUTEX_NULL;
|
||||
}
|
||||
|
||||
if (pagefile_fd)
|
||||
{
|
||||
AR_Reset();
|
||||
// ISFS_Close(pagefile_fd);
|
||||
pagefile_fd = -1;
|
||||
// ISFS_Delete(VM_FILENAME);
|
||||
}
|
||||
|
||||
vm_initialized = 0;
|
||||
}
|
||||
|
||||
int vm_dsi_handler(frame_context* state, u32 DSISR)
|
||||
{
|
||||
u16 v_index;
|
||||
u16 p_index;
|
||||
|
||||
if (state->DAR<(u32)VM_Base || state->DAR>=0x80000000)
|
||||
return 0;
|
||||
if ((DSISR&~0x02000000)!=0x40000000)
|
||||
return 0;
|
||||
if (!vm_initialized)
|
||||
return 0;
|
||||
|
||||
LWP_MutexLock(vm_mutex);
|
||||
|
||||
state->DAR &= ~0xFFF;
|
||||
v_index = (vm_page*)state->DAR - VM_Base;
|
||||
|
||||
p_index = locate_oldest();
|
||||
|
||||
// purge p_index if it's dirty
|
||||
if (phys_map[p_index].dirty)
|
||||
{
|
||||
DCFlushRange(MEM_Base+p_index, PAGE_SIZE);
|
||||
AR_StartDMA(AR_MRAMTOARAM,(u32)(MEM_Base+p_index),phys_map[p_index].page_index*PAGE_SIZE,PAGE_SIZE);
|
||||
while (AR_GetDMAStatus());
|
||||
virt_map[phys_map[p_index].page_index].committed = 1;
|
||||
virt_map[phys_map[p_index].page_index].p_map_index = pmap_max;
|
||||
phys_map[p_index].dirty = 0;
|
||||
// printf("VM page %d was purged\r\n", phys_map[p_index].page_index);
|
||||
}
|
||||
|
||||
// fetch v_index if it has been previously committed
|
||||
if (virt_map[v_index].committed)
|
||||
{
|
||||
DCInvalidateRange(MEM_Base+p_index, PAGE_SIZE);
|
||||
AR_StartDMA(AR_ARAMTOMRAM,(u32)(MEM_Base+p_index),v_index*PAGE_SIZE,PAGE_SIZE);
|
||||
while (AR_GetDMAStatus());
|
||||
// printf("VM page %d was fetched\r\n", v_index);
|
||||
}
|
||||
else
|
||||
DCZeroRange(MEM_Base+p_index, PAGE_SIZE);
|
||||
|
||||
// printf("VM page %u (0x%08x) replaced page %u (%p)\r\n", v_index, state->DAR, phys_map[p_index].page_index, VM_Base+phys_map[p_index].page_index);
|
||||
|
||||
virt_map[v_index].p_map_index = p_index;
|
||||
phys_map[p_index].page_index = v_index;
|
||||
phys_map[p_index].pte_index = insert_pte(v_index, MEM_VIRTUAL_TO_PHYSICAL(MEM_Base+p_index), 0, 0b10) - HTABORG;
|
||||
|
||||
LWP_MutexUnlock(vm_mutex);
|
||||
|
||||
return 1;
|
||||
}
|
||||
90
source/utils/vm/vm.h
Normal file
90
source/utils/vm/vm.h
Normal file
@ -0,0 +1,90 @@
|
||||
/* Copyright 2013 tueidj All Rights Reserved
|
||||
* This code may not be used in any project
|
||||
* without explicit permission from the author.
|
||||
*/
|
||||
|
||||
#ifndef _VM_H_
|
||||
#define _VM_H_
|
||||
|
||||
#include <gccore.h>
|
||||
#include <stdlib.h>
|
||||
#include <malloc.h>
|
||||
#include <errno.h>
|
||||
#include <ogc/machine/processor.h>
|
||||
#include <stdio.h>
|
||||
|
||||
#define KB (1024)
|
||||
#define MB (1024*KB)
|
||||
#define MRAM_BACKING (4*MB) // Use 4MB to page our 16MB
|
||||
#define ARAM_RESERVED (64*KB) // Reserved for DSP/AESND/etc
|
||||
#define ARAM_VM_BASE (0x7F000000) // Map ARAM to here
|
||||
#define ARAM_START (ARAM_RESERVED + ARAM_VM_BASE)
|
||||
#define ARAM_SIZE ((16*MB) - ARAM_RESERVED) // ARAM is ~16MB
|
||||
|
||||
// maximum virtual memory size
|
||||
#define MAX_VM_SIZE (256*1024*1024)
|
||||
// maximum physical memory size
|
||||
#define MAX_MEM_SIZE ( 8*1024*1024)
|
||||
// minimum physical memory size
|
||||
#define MIN_MEM_SIZE (256*1024)
|
||||
// page size as defined by hardware
|
||||
#define PAGE_SIZE 4096
|
||||
#define PAGE_MASK (~(PAGE_SIZE-1))
|
||||
|
||||
#define VM_VSID 0
|
||||
#define VM_SEGMENT 0x70000000
|
||||
|
||||
// use 64KB for PTEs
|
||||
#define HTABMASK 0
|
||||
#define PTE_SIZE ((HTABMASK+1)*65536)
|
||||
#define PTE_COUNT (PTE_SIZE>>3)
|
||||
|
||||
//#define VM_FILENAME "/tmp/pagefile.sys"
|
||||
|
||||
// keeps a record of each currently mapped page
|
||||
typedef union
|
||||
{
|
||||
u32 data;
|
||||
struct
|
||||
{
|
||||
u32 valid : 1;
|
||||
u32 locked : 1;
|
||||
u32 dirty : 1;
|
||||
u32 pte_index : 13;
|
||||
u32 page_index : 16;
|
||||
};
|
||||
} p_map;
|
||||
|
||||
// maps VM addresses to mapped pages
|
||||
typedef struct
|
||||
{
|
||||
// data must be fetched when paging in?
|
||||
u16 committed : 1;
|
||||
u16 p_map_index: 12;
|
||||
} vm_map;
|
||||
|
||||
typedef union
|
||||
{
|
||||
u32 data[2];
|
||||
struct
|
||||
{
|
||||
u32 valid : 1;
|
||||
u32 VSID : 24;
|
||||
u32 hash : 1;
|
||||
u32 API : 6;
|
||||
|
||||
u32 RPN : 20;
|
||||
u32 pad0 : 3;
|
||||
u32 R : 1;
|
||||
u32 C : 1;
|
||||
u32 WIMG : 4;
|
||||
u32 pad1 : 1;
|
||||
u32 PP : 2;
|
||||
};
|
||||
} PTE;
|
||||
typedef PTE* PTEG;
|
||||
|
||||
extern void* VM_Init(u32 VMSize, u32 MEMSize);
|
||||
extern void VM_Deinit(void);
|
||||
|
||||
#endif
|
||||
49
source/vmalloc.cpp
Normal file
49
source/vmalloc.cpp
Normal file
@ -0,0 +1,49 @@
|
||||
/****************************************************************************
|
||||
* Snes9x Nintendo Wii/Gamecube Port
|
||||
*
|
||||
* emu_kidid 2015-2018
|
||||
*
|
||||
* vmalloc.cpp
|
||||
*
|
||||
* GC VM memory allocator
|
||||
***************************************************************************/
|
||||
|
||||
#ifdef USE_VM
|
||||
|
||||
#include <ogc/machine/asm.h>
|
||||
#include <ogc/lwp_heap.h>
|
||||
#include <ogc/system.h>
|
||||
#include <ogc/machine/processor.h>
|
||||
#include "utils/vm/vm.h"
|
||||
|
||||
static heap_cntrl vm_heap;
|
||||
|
||||
static int vm_initialised = 0;
|
||||
|
||||
void InitVmManager ()
|
||||
{
|
||||
__lwp_heap_init(&vm_heap, (void *)ARAM_VM_BASE, ARAM_SIZE, 32);
|
||||
vm_initialised = 1;
|
||||
}
|
||||
|
||||
void* vm_malloc(u32 size)
|
||||
{
|
||||
if(!vm_initialised) InitVmManager();
|
||||
return __lwp_heap_allocate(&vm_heap, size);
|
||||
}
|
||||
|
||||
bool vm_free(void *ptr)
|
||||
{
|
||||
if(!vm_initialised) InitVmManager();
|
||||
return __lwp_heap_free(&vm_heap, ptr);
|
||||
}
|
||||
|
||||
int vm_size_free()
|
||||
{
|
||||
if(!vm_initialised) InitVmManager();
|
||||
heap_iblock info;
|
||||
__lwp_heap_getinfo(&vm_heap,&info);
|
||||
return info.free_size;
|
||||
}
|
||||
|
||||
#endif
|
||||
21
source/vmalloc.h
Normal file
21
source/vmalloc.h
Normal file
@ -0,0 +1,21 @@
|
||||
/****************************************************************************
|
||||
* Snes9x Nintendo Wii/Gamecube Port
|
||||
*
|
||||
* emu_kidid 2015-2018
|
||||
*
|
||||
* vmalloc.h
|
||||
*
|
||||
* GC VM memory allocator
|
||||
***************************************************************************/
|
||||
|
||||
#ifdef USE_VM
|
||||
|
||||
#ifndef _VMMANAGER_H_
|
||||
#define _VMMANAGER_H_
|
||||
|
||||
void* vm_malloc(u32 size);
|
||||
bool vm_free(void *ptr);
|
||||
int vm_size_free();
|
||||
#endif
|
||||
|
||||
#endif
|
||||
Loading…
Reference in New Issue
Block a user