psxmem: handle io mirrors

tested on real hardware (ignoring missing fault emulation)
fixes Star Wars - Episode I

diff --git a/libpcsxcore/new_dynarec/pcsxmem.c b/libpcsxcore/new_dynarec/pcsxmem.c
index a42852a..3d14904 100644 (file)
--- a/libpcsxcore/new_dynarec/pcsxmem.c
+++ b/libpcsxcore/new_dynarec/pcsxmem.c
@@ -338,11 +338,17 @@ void new_dyna_pcsx_mem_init(void)
 
        // scratchpad
        map_l1_mem(mem_readtab, 0, 0x1f800000, 0x1000, psxH);
+       map_l1_mem(mem_readtab, 0, 0x9f800000, 0x1000, psxH);
        map_l1_mem(mem_writetab, 0, 0x1f800000, 0x1000, psxH);
+       map_l1_mem(mem_writetab, 0, 0x9f800000, 0x1000, psxH);
 
        // I/O
        map_item(&mem_readtab[0x1f801000 >> 12], mem_iortab, 1);
+       map_item(&mem_readtab[0x9f801000 >> 12], mem_iortab, 1);
+       map_item(&mem_readtab[0xbf801000 >> 12], mem_iortab, 1);
        map_item(&mem_writetab[0x1f801000 >> 12], mem_iowtab, 1);
+       map_item(&mem_writetab[0x9f801000 >> 12], mem_iowtab, 1);
+       map_item(&mem_writetab[0xbf801000 >> 12], mem_iowtab, 1);
 
        // L2
        // unmapped tables

diff --git a/libpcsxcore/psxmem.c b/libpcsxcore/psxmem.c
index 9e44267..4373121 100644 (file)
--- a/libpcsxcore/psxmem.c
+++ b/libpcsxcore/psxmem.c
@@ -212,8 +212,8 @@ u8 psxMemRead8(u32 mem) {
        u32 t;
 
        t = mem >> 16;
-       if (t == 0x1f80) {
-               if (mem < 0x1f801000)
+       if (t == 0x1f80 || t == 0x9f80 || t == 0xbf80) {
+               if ((mem & 0xffff) < 0x400)
                        return psxHu8(mem);
                else
                        return psxHwRead8(mem);
@@ -237,8 +237,8 @@ u16 psxMemRead16(u32 mem) {
        u32 t;
 
        t = mem >> 16;
-       if (t == 0x1f80) {
-               if (mem < 0x1f801000)
+       if (t == 0x1f80 || t == 0x9f80 || t == 0xbf80) {
+               if ((mem & 0xffff) < 0x400)
                        return psxHu16(mem);
                else
                        return psxHwRead16(mem);
@@ -262,8 +262,8 @@ u32 psxMemRead32(u32 mem) {
        u32 t;
 
        t = mem >> 16;
-       if (t == 0x1f80) {
-               if (mem < 0x1f801000)
+       if (t == 0x1f80 || t == 0x9f80 || t == 0xbf80) {
+               if ((mem & 0xffff) < 0x400)
                        return psxHu32(mem);
                else
                        return psxHwRead32(mem);
@@ -287,8 +287,8 @@ void psxMemWrite8(u32 mem, u8 value) {
        u32 t;
 
        t = mem >> 16;
-       if (t == 0x1f80) {
-               if (mem < 0x1f801000)
+       if (t == 0x1f80 || t == 0x9f80 || t == 0xbf80) {
+               if ((mem & 0xffff) < 0x400)
                        psxHu8(mem) = value;
                else
                        psxHwWrite8(mem, value);
@@ -314,8 +314,8 @@ void psxMemWrite16(u32 mem, u16 value) {
        u32 t;
 
        t = mem >> 16;
-       if (t == 0x1f80) {
-               if (mem < 0x1f801000)
+       if (t == 0x1f80 || t == 0x9f80 || t == 0xbf80) {
+               if ((mem & 0xffff) < 0x400)
                        psxHu16ref(mem) = SWAPu16(value);
                else
                        psxHwWrite16(mem, value);
@@ -342,8 +342,8 @@ void psxMemWrite32(u32 mem, u32 value) {
 
 //     if ((mem&0x1fffff) == 0x71E18 || value == 0x48088800) SysPrintf("t2fix!!\n");
        t = mem >> 16;
-       if (t == 0x1f80) {
-               if (mem < 0x1f801000)
+       if (t == 0x1f80 || t == 0x9f80 || t == 0xbf80) {
+               if ((mem & 0xffff) < 0x400)
                        psxHu32ref(mem) = SWAPu32(value);
                else
                        psxHwWrite32(mem, value);
@@ -400,8 +400,8 @@ void *psxMemPointer(u32 mem) {
        u32 t;
 
        t = mem >> 16;
-       if (t == 0x1f80) {
-               if (mem < 0x1f801000)
+       if (t == 0x1f80 || t == 0x9f80 || t == 0xbf80) {
+               if ((mem & 0xffff) < 0x400)
                        return (void *)&psxH[mem];
                else
                        return NULL;