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move 'FORCEINLINE mmu_gpu_map()' to MMU.h, because gcc does not like it in .cpp

This commit is contained in:
matusz 2009-04-28 10:49:41 +00:00
parent b8aea4ffaa
commit 75e749ecf9
2 changed files with 26 additions and 25 deletions
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24
desmume/src/MMU.cpp
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@ -289,7 +289,6 @@ u8 vram_lcdc_map[VRAM_LCDC_PAGES];
//in the range of 0x06000000 - 0x06800000 in 16KB pages (the ARM9 vram mappable area) //in the range of 0x06000000 - 0x06800000 in 16KB pages (the ARM9 vram mappable area)
//this maps to 16KB pages in the LCDC buffer which is what will actually contain the data //this maps to 16KB pages in the LCDC buffer which is what will actually contain the data
#define VRAM_ARM9_PAGES 512
u8 vram_arm9_map[VRAM_ARM9_PAGES]; u8 vram_arm9_map[VRAM_ARM9_PAGES];
//this chooses which banks are mapped in the 128K banks starting at 0x06000000 in ARM7 //this chooses which banks are mapped in the 128K banks starting at 0x06000000 in ARM7
@ -420,29 +419,6 @@ u8 *MMU_RenderMapToLCD(u32 vram_addr)
} }
FORCEINLINE void* MMU_gpu_map(u32 vram_addr)
{
//THIS FUNCTION IS NOT AS DANGEROUS!
//as an alternative to the above, use this:
//it is supposed to map a single gpu vram address to emulator host memory
//but it returns a pointer to some zero memory in case of accesses to unmapped memory.
//this correctly handles the case with tile accesses to unmapped memory.
//it could also potentially go through a different LUT than vram_arm9_map in case we discover
//that it needs to be set up with different or no mirroring
//(I think it is a reasonable possibility that only the cpu has the nutty mirroring rules)
//
//if this system isn't used, Fantasy Aquarium displays garbage in the first ingame screen
//due to it storing 0x0F0F or somesuch in screen memory which points to a ridiculously big tile
//which should contain all 0 pixels
u32 vram_page = (vram_addr>>14)&(VRAM_ARM9_PAGES-1);
u32 ofs = vram_addr & 0x3FFF;
vram_page = vram_arm9_map[vram_page];
//blank pages are handled by the extra 16KB of blank memory at the end of ARM9_LCD
//and the fact that blank pages are mapped to appear at that location
return ARM9Mem.ARM9_LCD + (vram_page<<14) + ofs;
}
template<u8 DMA_CHANNEL> template<u8 DMA_CHANNEL>
void DMAtoVRAMmapping() void DMAtoVRAMmapping()
{ {

27
desmume/src/MMU.h
View File

@ -181,7 +181,32 @@ extern struct armcpu_memory_iface arm7_base_memory_iface;
extern struct armcpu_memory_iface arm9_direct_memory_iface; extern struct armcpu_memory_iface arm9_direct_memory_iface;
extern u8 *MMU_RenderMapToLCD(u32 vram_addr); extern u8 *MMU_RenderMapToLCD(u32 vram_addr);
extern void* MMU_gpu_map(u32 vram_addr);
#define VRAM_ARM9_PAGES 512
extern u8 vram_arm9_map[VRAM_ARM9_PAGES];
FORCEINLINE void* MMU_gpu_map(u32 vram_addr)
{
//THIS FUNCTION IS NOT AS DANGEROUS!
//as an alternative to the above, use this:
//it is supposed to map a single gpu vram address to emulator host memory
//but it returns a pointer to some zero memory in case of accesses to unmapped memory.
//this correctly handles the case with tile accesses to unmapped memory.
//it could also potentially go through a different LUT than vram_arm9_map in case we discover
//that it needs to be set up with different or no mirroring
//(I think it is a reasonable possibility that only the cpu has the nutty mirroring rules)
//
//if this system isn't used, Fantasy Aquarium displays garbage in the first ingame screen
//due to it storing 0x0F0F or somesuch in screen memory which points to a ridiculously big tile
//which should contain all 0 pixels
u32 vram_page = (vram_addr>>14)&(VRAM_ARM9_PAGES-1);
u32 ofs = vram_addr & 0x3FFF;
vram_page = vram_arm9_map[vram_page];
//blank pages are handled by the extra 16KB of blank memory at the end of ARM9_LCD
//and the fact that blank pages are mapped to appear at that location
return ARM9Mem.ARM9_LCD + (vram_page<<14) + ofs;
}
enum MMU_ACCESS_TYPE enum MMU_ACCESS_TYPE
{ {