psxbios: rewrite event handling
authornotaz <notasas@gmail.com>
Sat, 12 Aug 2023 22:59:20 +0000 (01:59 +0300)
committernotaz <notasas@gmail.com>
Sat, 12 Aug 2023 23:05:50 +0000 (02:05 +0300)
no more mapping to some internal array

libpcsxcore/psxbios.c

index 85f79fd..4ecbcb6 100644 (file)
@@ -193,28 +193,21 @@ char *biosC0n[256] = {
 #define Rsp ((char *)PSXM(sp))
 
 typedef struct {
-       u32 desc;
-       s32 status;
-       s32 mode;
+       u32 class;
+       u32 status;
+       u32 spec;
+       u32 mode;
        u32 fhandler;
-} EvCB[32];
+       u32 unused[2];
+} EvCB;
 
-#define EvStUNUSED     0x0000
-#define EvStWAIT       0x1000
-#define EvStACTIVE     0x2000
-#define EvStALREADY 0x4000
+#define EvStUNUSED      0x0000
+#define EvStDISABLED    0x1000
+#define EvStACTIVE      0x2000
+#define EvStALREADY     0x4000
 
-#define EvMdINTR       0x1000
-#define EvMdNOINTR     0x2000
-
-/*
-typedef struct {
-       s32 next;
-       s32 func1;
-       s32 func2;
-       s32 pad;
-} SysRPst;
-*/
+#define EvMdCALL        0x1000
+#define EvMdMARK        0x2000
 
 typedef struct {
        u32 status;
@@ -261,20 +254,9 @@ static int *pad_buf = NULL;
 static char *pad_buf1 = NULL, *pad_buf2 = NULL;
 static int pad_buf1len, pad_buf2len;
 static int pad_stopped = 0;
-
-static u32 regs[35];
-static EvCB *EventCB;
-static EvCB *HwEV; // 0xf0
-static EvCB *EvEV; // 0xf1
-static EvCB *RcEV; // 0xf2
-static EvCB *UeEV; // 0xf3
-static EvCB *SwEV; // 0xf4
-static EvCB *ThEV; // 0xff
 static u32 heap_size = 0;
 static u32 *heap_addr = NULL;
 static u32 *heap_end = NULL;
-static int CardState = -1;
-static int CurThread = 0;
 static FileDesc FDesc[32];
 static u32 card_active_chan = 0;
 
@@ -282,6 +264,7 @@ static u32 card_active_chan = 0;
 #define A_TT_ExCB       0x0100
 #define A_TT_PCB        0x0108
 #define A_TT_TCB        0x0110
+#define A_TT_EvCB       0x0120
 #define A_A0_TABLE      0x0200
 #define A_B0_TABLE      0x0874
 #define A_C0_TABLE      0x0674
@@ -295,6 +278,7 @@ static u32 card_active_chan = 0;
 #define A_EEXIT_PTR     0x75d0
 #define A_EXC_STACK     0x85d8  // exception stack top
 #define A_RCNT_VBL_ACK  0x8600
+#define A_CD_EVENTS     0xb9b8
 #define A_EXC_GP        0xf450
 
 #define HLEOP(n) SWAPu32((0x3b << 26) | (n));
@@ -377,14 +361,10 @@ static inline void softCallInException(u32 pc) {
                ra = sra;
 }
 
-static inline void DeliverEvent(u32 ev, u32 spec) {
-       if (EventCB[ev][spec].status != EvStACTIVE) return;
-
-//     EventCB[ev][spec].status = EvStALREADY;
-       if (EventCB[ev][spec].mode == EvMdINTR) {
-               softCall(EventCB[ev][spec].fhandler);
-       } else EventCB[ev][spec].status = EvStALREADY;
-}
+static u32 OpenEvent(u32 class, u32 spec, u32 mode, u32 func);
+static u32 DeliverEvent(u32 class, u32 spec);
+static u32 UnDeliverEvent(u32 class, u32 spec);
+static void CloseEvent(u32 ev);
 
 /*                                           *
 //                                           *
@@ -397,8 +377,8 @@ static inline void DeliverEvent(u32 ev, u32 spec) {
        ptr = Mcd##mcd##Data + 8192 * FDesc[1 + mcd].mcfile + FDesc[1 + mcd].offset; \
        memcpy(Ra1, ptr, length); \
        if (FDesc[1 + mcd].mode & 0x8000) { \
-       DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
-       DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
+       DeliverEvent(0xf0000011, 0x0004); \
+       DeliverEvent(0xf4000001, 0x0004); \
        v0 = 0; } \
        else v0 = length; \
        FDesc[1 + mcd].offset += v0; \
@@ -412,8 +392,8 @@ static inline void DeliverEvent(u32 ev, u32 spec) {
        FDesc[1 + mcd].offset += length; \
        SaveMcd(Config.Mcd##mcd, Mcd##mcd##Data, offset, length); \
        if (FDesc[1 + mcd].mode & 0x8000) { \
-       DeliverEvent(0x11, 0x2); /* 0xf0000011, 0x0004 */ \
-       DeliverEvent(0x81, 0x2); /* 0xf4000001, 0x0004 */ \
+       DeliverEvent(0xf0000011, 0x0004); \
+       DeliverEvent(0xf4000001, 0x0004); \
        v0 = 0; } \
        else v0 = length; \
 }
@@ -1602,8 +1582,8 @@ void psxBios__bu_init() { // 70
        PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x70]);
 #endif
 
-       DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
-       DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
+       DeliverEvent(0xf0000011, 0x0004);
+       DeliverEvent(0xf4000001, 0x0004);
 
        pc0 = ra;
 }
@@ -1634,11 +1614,11 @@ static void psxBios_DequeueCdIntr() { // a3
 static void psxBios_CdRemove() { // 56, 72
        PSXBIOS_LOG("psxBios_%s\n", biosA0n[0x72]);
 
-       // CloseEvent 0xf1000000
-       // CloseEvent 0xf1000001
-       // CloseEvent 0xf1000002
-       // CloseEvent 0xf1000003
-       // CloseEvent 0xf1000004
+       CloseEvent(loadRam32(A_CD_EVENTS + 0x00));
+       CloseEvent(loadRam32(A_CD_EVENTS + 0x04));
+       CloseEvent(loadRam32(A_CD_EVENTS + 0x08));
+       CloseEvent(loadRam32(A_CD_EVENTS + 0x0c));
+       CloseEvent(loadRam32(A_CD_EVENTS + 0x10));
        psxBios_DequeueCdIntr_();
 
        // EnterCriticalSection - should be done at the beginning,
@@ -1693,24 +1673,24 @@ void psxBios__card_info() { // ab
        switch (port) {
        case 0x0:
        case 0x1:
-               ret = 0x2;
+               ret = 0x0004;
                if (McdDisable[port & 1])
-                       ret = 0x8;
+                       ret = 0x0100;
                break;
        default:
 #ifdef PSXBIOS_LOG
                PSXBIOS_LOG("psxBios_%s: UNKNOWN PORT 0x%x\n", biosA0n[0xab], card_active_chan);
 #endif
-               ret = 0x11;
+               ret = 0x0302;
                break;
        }
 
        if (McdDisable[0] && McdDisable[1])
-               ret = 0x8;
+               ret = 0x0100;
 
-       DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
-//     DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
-       DeliverEvent(0x81, ret); // 0xf4000001, 0x0004
+       DeliverEvent(0xf0000011, 0x0004);
+//     DeliverEvent(0xf4000001, 0x0004);
+       DeliverEvent(0xf4000001, ret);
        v0 = 1; pc0 = ra;
 }
 
@@ -1721,8 +1701,8 @@ void psxBios__card_load() { // ac
 
        card_active_chan = a0;
 
-//     DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
-       DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
+//     DeliverEvent(0xf0000011, 0x0004);
+       DeliverEvent(0xf4000001, 0x0004);
 
        v0 = 1; pc0 = ra;
 }
@@ -1806,154 +1786,176 @@ void psxBios_ResetRCnt() { // 06
        pc0 = ra;
 }
 
+static u32 DeliverEvent(u32 class, u32 spec) {
+       EvCB *ev = (EvCB *)loadRam32ptr(A_TT_EvCB);
+       u32 evcb_len = loadRam32(A_TT_EvCB + 4);
+       u32 ret = loadRam32(A_TT_EvCB) + evcb_len;
+       u32 i, lim = evcb_len / 0x1c;
 
-/* gets ev for use with EventCB */
-#define GetEv() \
-       ev = (a0 >> 24) & 0xf; \
-       if (ev == 0xf) ev = 0x5; \
-       ev*= 32; \
-       ev+= a0&0x1f;
-
-/* gets spec for use with EventCB */
-#define GetSpec() \
-       spec = 0; \
-       switch (a1) { \
-               case 0x0301: spec = 16; break; \
-               case 0x0302: spec = 17; break; \
-               default: \
-                       for (i=0; i<16; i++) if (a1 & (1 << i)) { spec = i; break; } \
-                       break; \
+       for (i = 0; i < lim; i++, ev++) {
+               use_cycles(8);
+               if (SWAP32(ev->status) != EvStACTIVE)
+                       continue;
+               use_cycles(4);
+               if (SWAP32(ev->class) != class)
+                       continue;
+               use_cycles(4);
+               if (SWAP32(ev->spec) != spec)
+                       continue;
+               use_cycles(6);
+               ret = SWAP32(ev->mode);
+               if (ret == EvMdMARK) {
+                       ev->status = SWAP32(EvStALREADY);
+                       continue;
+               }
+               use_cycles(8);
+               if (ret == EvMdCALL) {
+                       ret = SWAP32(ev->fhandler);
+                       if (ret) {
+                               v0 = ret;
+                               softCall(ret);
+                               ret = v0;
+                       }
+               }
        }
+       use_cycles(29);
+       return ret;
+}
 
-void psxBios_DeliverEvent() { // 07
-       int ev, spec;
-       int i;
-
-       GetEv();
-       GetSpec();
-
-#ifdef PSXBIOS_LOG
-       PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x07], ev, spec);
-#endif
-
-       DeliverEvent(ev, spec);
+static u32 UnDeliverEvent(u32 class, u32 spec) {
+       EvCB *ev = (EvCB *)loadRam32ptr(A_TT_EvCB);
+       u32 evcb_len = loadRam32(A_TT_EvCB + 4);
+       u32 ret = loadRam32(A_TT_EvCB) + evcb_len;
+       u32 i, lim = evcb_len / 0x1c;
 
-       pc0 = ra;
+       for (i = 0; i < lim; i++, ev++) {
+               use_cycles(8);
+               if (SWAP32(ev->status) != EvStALREADY)
+                       continue;
+               use_cycles(4);
+               if (SWAP32(ev->class) != class)
+                       continue;
+               use_cycles(4);
+               if (SWAP32(ev->spec) != spec)
+                       continue;
+               use_cycles(6);
+               if (SWAP32(ev->mode) == EvMdMARK)
+                       ev->status = SWAP32(EvStACTIVE);
+       }
+       use_cycles(28);
+       return ret;
 }
 
-void psxBios_OpenEvent() { // 08
-       int ev, spec;
-       int i;
-
-       GetEv();
-       GetSpec();
+static void psxBios_DeliverEvent() { // 07
+       u32 ret;
+       PSXBIOS_LOG("psxBios_%s %x %04x\n", biosB0n[0x07], a0, a1);
 
-#ifdef PSXBIOS_LOG
-       PSXBIOS_LOG("psxBios_%s %x,%x (class:%x, spec:%x, mode:%x, func:%x)\n", biosB0n[0x08], ev, spec, a0, a1, a2, a3);
-#endif
+       ret = DeliverEvent(a0, a1);
+       mips_return(ret);
+}
 
-       EventCB[ev][spec].status = EvStWAIT;
-       EventCB[ev][spec].mode = a2;
-       EventCB[ev][spec].fhandler = a3;
+static s32 get_free_EvCB_slot() {
+       EvCB *ev = (EvCB *)loadRam32ptr(A_TT_EvCB);
+       u32 i, lim = loadRam32(A_TT_EvCB + 4) / 0x1c;
 
-       v0 = ev | (spec << 8);
-       pc0 = ra;
+       use_cycles(19);
+       for (i = 0; i < lim; i++, ev++) {
+               use_cycles(8);
+               if (ev->status == SWAP32(EvStUNUSED))
+                       return i;
+       }
+       return -1;
 }
 
-void psxBios_CloseEvent() { // 09
-       int ev, spec;
-
-       ev   = a0 & 0xff;
-       spec = (a0 >> 8) & 0xff;
+static u32 OpenEvent(u32 class, u32 spec, u32 mode, u32 func) {
+       u32 ret = get_free_EvCB_slot();
+       if ((s32)ret >= 0) {
+               EvCB *ev = (EvCB *)loadRam32ptr(A_TT_EvCB) + ret;
+               ev->class = SWAP32(class);
+               ev->status = SWAP32(EvStDISABLED);
+               ev->spec = SWAP32(spec);
+               ev->mode = SWAP32(mode);
+               ev->fhandler = SWAP32(func);
+               ret |= 0xf1000000u;
+       }
+       return ret;
+}
 
-#ifdef PSXBIOS_LOG
-       PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x09], ev, spec);
-#endif
+static void psxBios_OpenEvent() { // 08
+       u32 ret = OpenEvent(a0, a1, a2, a3);
+       PSXBIOS_LOG("psxBios_%s (class:%x, spec:%04x, mode:%04x, func:%x) -> %x\n",
+               biosB0n[0x08], a0, a1, a2, a3, ret);
+       mips_return_c(ret, 36);
+}
 
-       EventCB[ev][spec].status = EvStUNUSED;
+static void CloseEvent(u32 ev)
+{
+       u32 base = loadRam32(A_TT_EvCB);
+       storeRam32(base + (ev & 0xffff) * sizeof(EvCB) + 4, EvStUNUSED);
+}
 
-       v0 = 1; pc0 = ra;
+static void psxBios_CloseEvent() { // 09
+       PSXBIOS_LOG("psxBios_%s %x (%x)\n", biosB0n[0x09], a0,
+               loadRam32(loadRam32(A_TT_EvCB) + (a0 & 0xffff) * sizeof(EvCB) + 4));
+       CloseEvent(a0);
+       mips_return_c(1, 10);
 }
 
-void psxBios_WaitEvent() { // 0a
-       int ev, spec;
+static void psxBios_WaitEvent() { // 0a
+       u32 base = loadRam32(A_TT_EvCB);
+       u32 status = loadRam32(base + (a0 & 0xffff) * sizeof(EvCB) + 4);
+       PSXBIOS_LOG("psxBios_%s %x (status=%x)\n", biosB0n[0x0a], a0, status);
 
-       ev   = a0 & 0xff;
-       spec = (a0 >> 8) & 0xff;
-#ifdef PSXBIOS_LOG
-       PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0a], ev, spec);
-#endif
-       if (EventCB[ev][spec].status == EvStUNUSED)
-       {
-               v0 = 0;
-               pc0 = ra;
+       use_cycles(15);
+       if (status == EvStALREADY) {
+               storeRam32(base + (a0 & 0xffff) * sizeof(EvCB) + 4, EvStACTIVE);
+               mips_return(1);
                return;
        }
-
-       if (EventCB[ev][spec].status == EvStALREADY)
+       if (status != EvStACTIVE)
        {
-               /* Callback events (mode=EvMdINTR) do never set the ready flag (and thus WaitEvent would hang forever). */
-               if (!(EventCB[ev][spec].mode == EvMdINTR)) EventCB[ev][spec].status = EvStACTIVE;
-               v0 = 1;
-               pc0 = ra;
+               mips_return_c(0, 2);
                return;
        }
 
-       v0 = 0;
-       pc0 = ra;
+       // retrigger this hlecall after the next emulation event
+       pc0 -= 4;
+       if ((s32)(next_interupt - psxRegs.cycle) > 0)
+               psxRegs.cycle = next_interupt;
+       psxBranchTest();
 }
 
-void psxBios_TestEvent() { // 0b
-       int ev, spec;
-
-       ev   = a0 & 0xff;
-       spec = (a0 >> 8) & 0xff;
-
-       if (EventCB[ev][spec].status == EvStALREADY)
-       {
-               if (!(EventCB[ev][spec].mode == EvMdINTR)) EventCB[ev][spec].status = EvStACTIVE;
-               v0 = 1;
-       }
-       else
-       {
-               v0 = 0;
+static void psxBios_TestEvent() { // 0b
+       u32 base = loadRam32(A_TT_EvCB);
+       u32 status = loadRam32(base + (a0 & 0xffff) * sizeof(EvCB) + 4);
+       u32 ret = 0;
+       PSXBIOS_LOG("psxBios_%s    %x %x\n", biosB0n[0x0b], a0, status);
+       if (status == EvStALREADY) {
+               storeRam32(base + (a0 & 0xffff) * sizeof(EvCB) + 4, EvStACTIVE);
+               ret = 1;
        }
 
-#ifdef PSXBIOS_LOG
-       PSXBIOS_LOG("psxBios_%s %x,%x: %x\n", biosB0n[0x0b], ev, spec, v0);
-#endif
-
-       pc0 = ra;
+       mips_return_c(ret, 15);
 }
 
-void psxBios_EnableEvent() { // 0c
-       int ev, spec;
+static void psxBios_EnableEvent() { // 0c
+       u32 base = loadRam32(A_TT_EvCB);
+       u32 status = loadRam32(base + (a0 & 0xffff) * sizeof(EvCB) + 4);
+       PSXBIOS_LOG("psxBios_%s %x (%x)\n", biosB0n[0x0c], a0, status);
+       if (status != EvStUNUSED)
+               storeRam32(base + (a0 & 0xffff) * sizeof(EvCB) + 4, EvStACTIVE);
 
-       ev   = a0 & 0xff;
-       spec = (a0 >> 8) & 0xff;
-
-#ifdef PSXBIOS_LOG
-       PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0c], ev, spec);
-#endif
-
-       EventCB[ev][spec].status = EvStACTIVE;
-
-       v0 = 1; pc0 = ra;
+       mips_return_c(1, 15);
 }
 
-void psxBios_DisableEvent() { // 0d
-       int ev, spec;
-
-       ev   = a0 & 0xff;
-       spec = (a0 >> 8) & 0xff;
-
-#ifdef PSXBIOS_LOG
-       PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x0d], ev, spec);
-#endif
-
-       EventCB[ev][spec].status = EvStWAIT;
+static void psxBios_DisableEvent() { // 0d
+       u32 base = loadRam32(A_TT_EvCB);
+       u32 status = loadRam32(base + (a0 & 0xffff) * sizeof(EvCB) + 4);
+       PSXBIOS_LOG("psxBios_%s %x: %x\n", biosB0n[0x0d], a0, status);
+       if (status != EvStUNUSED)
+               storeRam32(base + (a0 & 0xffff) * sizeof(EvCB) + 4, EvStDISABLED);
 
-       v0 = 1; pc0 = ra;
+       mips_return_c(1, 15);
 }
 
 /*
@@ -2123,22 +2125,12 @@ void psxBios_HookEntryInt() { // 19
        mips_return_void_c(3);
 }
 
-void psxBios_UnDeliverEvent() { // 0x20
-       int ev, spec;
-       int i;
-
-       GetEv();
-       GetSpec();
-
-#ifdef PSXBIOS_LOG
-       PSXBIOS_LOG("psxBios_%s %x,%x\n", biosB0n[0x20], ev, spec);
-#endif
-
-       if (EventCB[ev][spec].status == EvStALREADY &&
-               EventCB[ev][spec].mode == EvMdNOINTR)
-               EventCB[ev][spec].status = EvStACTIVE;
+static void psxBios_UnDeliverEvent() { // 0x20
+       u32 ret;
+       PSXBIOS_LOG("psxBios_%s %x %x\n", biosB0n[0x20], a0, a1);
 
-       pc0 = ra;
+       ret = UnDeliverEvent(a0, a1);
+       mips_return(ret);
 }
 
 char ffile[64], *pfile;
@@ -2246,8 +2238,8 @@ void psxBios_lseek() { // 0x33
                case 0: // SEEK_SET
                        FDesc[a0].offset = a1;
                        v0 = a1;
-//                     DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
-//                     DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
+//                     DeliverEvent(0xf0000011, 0x0004);
+//                     DeliverEvent(0xf4000001, 0x0004);
                        break;
 
                case 1: // SEEK_CUR
@@ -2426,11 +2418,11 @@ void psxBios_firstfile() { // 42
                nfile = 0;
                if (!strncmp(pa0, "bu00", 4)) {
                        // firstfile() calls _card_read() internally, so deliver it's event
-                       DeliverEvent(0x11, 0x2);
+                       DeliverEvent(0xf0000011, 0x0004);
                        bufile(1);
                } else if (!strncmp(pa0, "bu10", 4)) {
                        // firstfile() calls _card_read() internally, so deliver it's event
-                       DeliverEvent(0x11, 0x2);
+                       DeliverEvent(0xf0000011, 0x0004);
                        bufile(2);
                }
        }
@@ -2558,8 +2550,6 @@ void psxBios_InitCARD() { // 4a
        PSXBIOS_LOG("psxBios_%s: %x\n", biosB0n[0x4a], a0);
 #endif
 
-       CardState = 0;
-
        pc0 = ra;
 }
 
@@ -2568,8 +2558,6 @@ void psxBios_StartCARD() { // 4b
        PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4b]);
 #endif
 
-       if (CardState == 0) CardState = 1;
-
        pc0 = ra;
 }
 
@@ -2578,8 +2566,6 @@ void psxBios_StopCARD() { // 4c
        PSXBIOS_LOG("psxBios_%s\n", biosB0n[0x4c]);
 #endif
 
-       if (CardState == 1) CardState = 0;
-
        pc0 = ra;
 }
 
@@ -2613,8 +2599,8 @@ void psxBios__card_write() { // 0x4e
                }
        }
 
-       DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
-//     DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
+       DeliverEvent(0xf0000011, 0x0004);
+//     DeliverEvent(0xf4000001, 0x0004);
 
        v0 = 1; pc0 = ra;
 }
@@ -2647,8 +2633,8 @@ void psxBios__card_read() { // 0x4f
                }
        }
 
-       DeliverEvent(0x11, 0x2); // 0xf0000011, 0x0004
-//     DeliverEvent(0x81, 0x2); // 0xf4000001, 0x0004
+       DeliverEvent(0xf0000011, 0x0004);
+//     DeliverEvent(0xf4000001, 0x0004);
 
        v0 = 1; pc0 = ra;
 }
@@ -2843,6 +2829,12 @@ static void psxBios_SysDeqIntRP() { // 03
        psxBios_SysDeqIntRP_();
 }
 
+static void psxBios_get_free_EvCB_slot() { // 04
+       PSXBIOS_LOG("psxBios_%s\n", biosC0n[0x04]);
+       s32 ret = get_free_EvCB_slot();
+       mips_return_c(ret, 0);
+}
+       
 static void psxBios_SysInitMemory_(u32 base, u32 size) {
        storeRam32(base, 0);
        storeRam32(A_KMALLOC_PTR, base);
@@ -3007,11 +2999,18 @@ static void setup_tt(u32 tcb_cnt, u32 evcb_cnt)
 
        storeRam32(p_pcb, p_tcb);
        storeRam32(p_tcb, 0x4000);          // first TCB
+
+       // default events
+       storeRam32(A_CD_EVENTS + 0x00, OpenEvent(0xf0000003, 0x0010, EvMdMARK, 0));
+       storeRam32(A_CD_EVENTS + 0x04, OpenEvent(0xf0000003, 0x0020, EvMdMARK, 0));
+       storeRam32(A_CD_EVENTS + 0x08, OpenEvent(0xf0000003, 0x0040, EvMdMARK, 0));
+       storeRam32(A_CD_EVENTS + 0x0c, OpenEvent(0xf0000003, 0x0080, EvMdMARK, 0));
+       storeRam32(A_CD_EVENTS + 0x10, OpenEvent(0xf0000003, 0x8000, EvMdMARK, 0));
+       DeliverEvent(0xf0000003, 0x0010);
 }
 
 void psxBiosInit() {
-       u32 base, size;
-       u32 *ptr, *ram32;
+       u32 *ptr, *ram32, *rom32;
        int i;
        uLongf len;
 
@@ -3311,7 +3310,7 @@ void psxBiosInit() {
        biosC0[0x01] = psxBios_InitException;
        biosC0[0x02] = psxBios_SysEnqIntRP;
        biosC0[0x03] = psxBios_SysDeqIntRP;
-       //biosC0[0x04] = psxBios_get_free_EvCB_slot;
+       biosC0[0x04] = psxBios_get_free_EvCB_slot;
        //biosC0[0x05] = psxBios_get_free_TCB_slot;
        //biosC0[0x06] = psxBios_ExceptionHandler;
        //biosC0[0x07] = psxBios_InstallExeptionHandler;
@@ -3338,16 +3337,6 @@ void psxBiosInit() {
        //biosC0[0x1c] = psxBios_PatchAOTable;
 //************** THE END ***************************************
 /**/
-       base = 0x1000;
-       size = sizeof(EvCB) * 32;
-       EventCB = (void *)&psxR[base]; base += size * 6;
-       memset(EventCB, 0, size * 6);
-       HwEV = EventCB;
-       EvEV = EventCB + 32;
-       RcEV = EventCB + 32 * 2;
-       UeEV = EventCB + 32 * 3;
-       SwEV = EventCB + 32 * 4;
-       ThEV = EventCB + 32 * 5;
 
        pad_stopped = 1;
        pad_buf = NULL;
@@ -3357,14 +3346,18 @@ void psxBiosInit() {
        heap_addr = NULL;
        heap_end = NULL;
        heap_size = 0;
-       CardState = -1;
-       CurThread = 0;
        memset(FDesc, 0, sizeof(FDesc));
        card_active_chan = 0;
 
        // initial RNG seed
        psxMu32ref(0x9010) = SWAPu32(0xac20cc00);
 
+       rom32 = (u32 *)psxR;
+       rom32[0x100/4] = SWAP32(0x19951204);
+       rom32[0x104/4] = SWAP32(3);
+       strcpy(psxR + 0x108, "PCSX authors");
+       strcpy(psxR + 0x12c, "PCSX HLE");
+
        // fonts
        len = 0x80000 - 0x66000;
        uncompress((Bytef *)(psxR + 0x66000), &len, font_8140, sizeof(font_8140));
@@ -3550,7 +3543,7 @@ void hleExc0_0_2() // A(91h) - CdromDmaIrqFunc1
        if (psxHu32(0x1074) & psxHu32(0x1070) & 8) { // IRQ3 DMA
                psxHwWrite32(0x1f8010f4, (psxHu32(0x10f4) & 0xffffff) | 0x88000000);
                //if (--cdrom_irq_counter == 0) // 0xa0009180
-               //      DeliverEvent();         // 0xf0000003, 0x10
+               //      DeliverEvent(0xf0000003, 0x10);
                use_cycles(22);
                ret = 1;
        }
@@ -3581,7 +3574,7 @@ void hleExc0_2_2_syscall() // not in any A/B/C table
 
        if (code != R3000E_Syscall) {
                if (code != 0) {
-                       // DeliverEvent(); // 0xf0000010, 0x1000
+                       DeliverEvent(0xf0000010, 0x1000);
                        psxBios_SystemErrorUnresolvedException();
                }
                mips_return_c(0, 17);
@@ -3610,7 +3603,7 @@ void hleExc0_2_2_syscall() // not in any A/B/C table
                        break;
                }
                default:
-                       // DeliverEvent(); // 0xf0000010, 0x4000
+                       DeliverEvent(0xf0000010, 0x4000);
                        break;
        }
        use_cycles(30);
@@ -3627,10 +3620,7 @@ static void handle_chain_1_x_2(u32 ev_index, u32 irqbit)
 {
        u32 ret = 0;
        if (psxHu32(0x1074) & psxHu32(0x1070) & (1u << irqbit)) {
-               // DeliverEvent 0xf2000000 + ev_index, 2
-               if (RcEV[ev_index][1].status == EvStACTIVE) {
-                       softCall(RcEV[ev_index][1].fhandler);
-               }
+               DeliverEvent(0xf2000000 + ev_index, 0x0002);
                ret = 1;
        }
        mips_return_c(ret, 22);
@@ -3694,7 +3684,7 @@ void hleExc3_0_2_defint(void)
        size_t i;
        for (i = 0; i < sizeof(tab) / sizeof(tab[0]); i++) {
                if (psxHu32(0x1074) & psxHu32(0x1070) & (1u << tab[i].irqbit)) {
-                       // DeliverEvent 0xf0000000 + ev, 0x1000
+                       DeliverEvent(0xf0000000 + tab[i].ev, 0x1000);
                        use_cycles(7);
                }
 
@@ -3794,11 +3784,6 @@ void psxBiosFreeze(int Mode) {
        bfreezepsxMptr(pad_buf1, char);
        bfreezepsxMptr(pad_buf2, char);
        bfreezepsxMptr(heap_addr, u32);
-       bfreezel(&pad_buf1len);
-       bfreezel(&pad_buf2len);
-       bfreezes(regs);
-       bfreezel(&CardState);
-       bfreezel(&CurThread);
        bfreezes(FDesc);
        bfreezel(&card_active_chan);
        bfreezel(&pad_stopped);