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added hack to allow physical mem read/writes
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cbd1de38be
commit
829952834a
1 changed files with 20 additions and 2 deletions
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@ -41,11 +41,19 @@ inline void ReadFromHardware(T &var, const u32 addr) {
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// Scratchpad memory
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} else if (addr > MEM_SCRATCHPAD_VADDR && addr <= (MEM_SCRATCHPAD_VADDR + MEM_SCRATCHPAD_SIZE)) {
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var = *((const T*)&g_scratchpad[addr & MEM_SCRATCHPAD_MASK]);
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}
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/*else if ((addr & 0x3F800000) == 0x04000000) {
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var = *((const T*)&m_pVRAM[addr & VRAM_MASK]);
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}*/
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else {
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// HACK(bunnei): There is no layer yet to translate virtual addresses to physical addresses.
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// Until we progress far enough along, we'll accept all physical address reads here. I think
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// that this is typically a corner-case from usermode software unless they are trying to do
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// bare-metal things (e.g. early 3DS homebrew writes directly to the FB @ 0x20184E60, etc.
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} else if (((addr & 0xF0000000) == MEM_FCRAM_PADDR) && (addr < (MEM_FCRAM_PADDR_END))) {
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var = *((const T*)&g_fcram[addr & MEM_FCRAM_MASK]);
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} else {
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_assert_msg_(MEMMAP, false, "unknown hardware read");
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// WARN_LOG(MEMMAP, "ReadFromHardware: Invalid addr %08x PC %08x LR %08x", addr, currentMIPS->pc, currentMIPS->r[MIPS_REG_RA]);
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}
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@ -73,6 +81,7 @@ inline void WriteToHardware(u32 addr, const T data) {
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// heap size... the following is writing to FCRAM + 0, which is actually supposed to be the
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// application's GSP heap
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*(T*)&g_fcram[addr & MEM_FCRAM_MASK] = data;
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} else if ((addr & 0xFF000000) == 0x14000000) {
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_assert_msg_(MEMMAP, false, "umimplemented write to GSP heap");
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} else if ((addr & 0xFFF00000) == 0x1EC00000) {
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@ -85,6 +94,15 @@ inline void WriteToHardware(u32 addr, const T data) {
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_assert_msg_(MEMMAP, false, "umimplemented write to Configuration Memory");
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} else if ((addr & 0xFFFFF000) == 0x1FF81000) {
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_assert_msg_(MEMMAP, false, "umimplemented write to shared page");
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// HACK(bunnei): There is no layer yet to translate virtual addresses to physical addresses.
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// Until we progress far enough along, we'll accept all physical address writes here. I think
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// that this is typically a corner-case from usermode software unless they are trying to do
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// bare-metal things (e.g. early 3DS homebrew writes directly to the FB @ 0x20184E60, etc.
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} else if (((addr & 0xF0000000) == MEM_FCRAM_PADDR) && (addr < (MEM_FCRAM_PADDR_END))) {
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*(T*)&g_fcram[addr & MEM_FCRAM_MASK] = data;
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// Error out...
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} else {
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_assert_msg_(MEMMAP, false, "unknown hardware write");
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}
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