From: notaz <notasas@gmail.com>
Date: Sun, 5 Aug 2007 19:41:41 +0000 (+0000)
Subject: port to updated Cyclone, debug menu
X-Git-Tag: v1.85~699
X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0af33fe0ef24a3e3b65217ad0d7aa2db03d16fc1;p=picodrive.git

port to updated Cyclone, debug menu

git-svn-id: file:///home/notaz/opt/svn/PicoDrive@217 be3aeb3a-fb24-0410-a615-afba39da0efa
---

diff --git a/Pico/Area.c b/Pico/Area.c
index a88ed80a..3749ac32 100644
--- a/Pico/Area.c
+++ b/Pico/Area.c
@@ -63,7 +63,7 @@ int PicoAreaPackCpu(unsigned char *cpu, int is_sub)
   *(unsigned int *)(cpu+0x44)=CycloneGetSr(context);
   *(unsigned int *)(cpu+0x48)=context->osp;
   cpu[0x4c] = context->irq;
-  cpu[0x4d] = context->stopped;
+  cpu[0x4d] = context->state_flags & 1;
 #endif
 
 #ifdef EMU_M68K
@@ -102,7 +102,9 @@ int PicoAreaUnpackCpu(unsigned char *cpu, int is_sub)
   context->membase=0;
   context->pc = context->checkpc(*(unsigned int *)(cpu+0x40)); // Base pc
   context->irq = cpu[0x4c];
-  context->stopped = cpu[0x4d];
+  context->state_flags = 0;
+  if (cpu[0x4d])
+    context->state_flags |= 1;
 #endif
 
 #ifdef EMU_M68K
diff --git a/Pico/Memory.c b/Pico/Memory.c
index daec623c..2b253d80 100644
--- a/Pico/Memory.c
+++ b/Pico/Memory.c
@@ -22,8 +22,8 @@ typedef unsigned int   u32;
 extern unsigned int lastSSRamWrite; // used by serial SRAM code
 
 #ifdef _ASM_MEMORY_C
-u8   PicoRead8(u32 a);
-u16  PicoRead16(u32 a);
+u32  PicoRead8(u32 a);
+u32  PicoRead16(u32 a);
 void PicoWriteRomHW_SSF2(u32 a,u32 d);
 void PicoWriteRomHW_in1 (u32 a,u32 d);
 #endif
@@ -69,11 +69,13 @@ static u32 CPU_CALL PicoCheckPc(u32 pc)
   u32 ret=0;
 #if defined(EMU_C68K)
   pc-=PicoCpu.membase; // Get real pc
-  pc&=0xfffffe;
-  if (pc == 0)
+//  pc&=0xfffffe;
+  pc&=~1;
+  if ((pc<<8) == 0)
     return (int)Pico.rom + Pico.romsize; // common crash condition, can happen if acc timing is off
 
-  PicoCpu.membase=PicoMemBase(pc);
+  PicoCpu.membase=PicoMemBase(pc&0x00ffffff);
+  PicoCpu.membase-=pc&0xff000000;
 
   ret = PicoCpu.membase+pc;
 #elif defined(EMU_A68K)
@@ -264,7 +266,7 @@ static void OtherWrite8End(u32 a,u32 d,int realsize)
 //                     Read Rom and read Ram
 
 #ifndef _ASM_MEMORY_C
-u8 CPU_CALL PicoRead8(u32 a)
+u32 CPU_CALL PicoRead8(u32 a)
 {
   u32 d=0;
 
@@ -312,12 +314,12 @@ u8 CPU_CALL PicoRead8(u32 a)
     lastread_d[lrp_cyc++&15] = (u8)d;
   }
 #endif
-  return (u8)d;
+  return d;
 }
 
-u16 CPU_CALL PicoRead16(u32 a)
+u32 CPU_CALL PicoRead16(u32 a)
 {
-  u16 d=0;
+  u32 d=0;
 
   if ((a&0xe00000)==0xe00000) { d=*(u16 *)(Pico.ram+(a&0xfffe)); goto end; } // Ram
 
@@ -326,14 +328,14 @@ u16 CPU_CALL PicoRead16(u32 a)
 #if !(defined(EMU_C68K) && defined(EMU_M68K))
   // sram
   if(a >= SRam.start && a <= SRam.end && (Pico.m.sram_reg & 1)) {
-    d = (u16) SRAMRead(a);
+    d = SRAMRead(a);
     goto end;
   }
 #endif
 
   if (a<Pico.romsize) { d = *(u16 *)(Pico.rom+a); goto end; } // Rom
 
-  d = (u16)OtherRead16(a, 16);
+  d = OtherRead16(a, 16);
 
   end:
   //if ((a&0xe0ffff)==0xe0AF0E+0x69c||(a&0xe0ffff)==0xe0A9A8+0x69c||(a&0xe0ffff)==0xe0A9AA+0x69c||(a&0xe0ffff)==0xe0A9AC+0x69c)
diff --git a/Pico/MemoryCmn.c b/Pico/MemoryCmn.c
index f47392bd..ee75abca 100644
--- a/Pico/MemoryCmn.c
+++ b/Pico/MemoryCmn.c
@@ -102,7 +102,6 @@ u32 OtherRead16(u32 a, int realsize)
 #if 1
     if (!d) {
       // needed by buggy Terminator (Sega CD)
-      extern int z80stopCycle;
       int stop_before = SekCyclesDone() - z80stopCycle;
       dprintf("stop before: %i", stop_before);
       if (stop_before > 0 && stop_before <= 32) // Gens uses 16 here
diff --git a/Pico/Pico.c b/Pico/Pico.c
index e2b16a20..62b1b48a 100644
--- a/Pico/Pico.c
+++ b/Pico/Pico.c
@@ -21,7 +21,7 @@ int emustatus = 0;
 void (*PicoWriteSound)(int len) = 0; // called once per frame at the best time to send sound buffer (PsndOut) to hardware
 
 struct PicoSRAM SRam;
-int z80startCycle = 0, z80stopCycle = 0; // in 68k cycles
+int z80startCycle, z80stopCycle; // in 68k cycles
 //int z80ExtraCycles = 0;
 int PicoPad[2];  // Joypads, format is SACB RLDU
 int PicoMCD = 0; // mega CD status: scd_started, reset_pending
@@ -463,13 +463,13 @@ static void PicoRunZ80Simple(int line_from, int line_to)
 
   if(!(PicoOpt&4) || Pico.m.z80Run == 0) { line_from_r = line_to_r; line_to_r = 0; }
 
-  if(z80startCycle != 0) {
+  if(z80startCycle != 0x01000000) {
     line_from_r = vcounts[z80startCycle>>8]+1;
-    z80startCycle = 0;
+    z80startCycle = 0x01000000;
   }
-  if(z80stopCycle != 0) {
+  if(z80stopCycle != 0x01000000) {
     line_to_r = vcounts[z80stopCycle>>8]+1;
-    z80stopCycle = 0;
+    z80stopCycle = 0x01000000;
   }
 
   if(PicoOpt&1) {
@@ -656,33 +656,47 @@ int PicoFrame(void)
 // callback to output message from emu
 void (*PicoMessage)(const char *msg)=NULL;
 
-#if defined(__DEBUG_PRINT) || defined(WIN32)
+#if defined(__DEBUG_PRINT) || defined(__GP2X__)
 // tmp debug: dump some stuff
 #define bit(r, x) ((r>>x)&1)
 void z80_debug(char *dstr);
-char *debugString()
+char *debugString(void)
 {
 #if 1
   static char dstr[1024];
-  unsigned char *reg=Pico.video.reg, r;
-
-  // dump some info
-  sprintf(dstr, "mode set 1: %02x\n", (r=reg[0]));
-  sprintf(dstr, "%sdisplay_disable: %i, M3: %i, palette: %i, ?, hints: %i\n\n", dstr, bit(r,0), bit(r,1), bit(r,2), bit(r,4));
-  sprintf(dstr, "%smode set 2: %02x\n",  dstr,  (r=reg[1]));
-  sprintf(dstr, "%sSMS/genesis: %i, pal: %i, dma: %i, vints: %i, disp: %i, TMS9918: %i\n\n",dstr, bit(r,2), bit(r,3), bit(r,4), bit(r,5), bit(r,6), bit(r,7));
-  sprintf(dstr, "%smode set 3: %02x\n",  dstr,  (r=reg[0xB]));
-  sprintf(dstr, "%sLSCR: %i, HSCR: %i, 2cell vscroll: %i, IE2: %i\n\n", dstr, bit(r,0), bit(r,1), bit(r,2), bit(r,3));
-  sprintf(dstr, "%smode set 4: %02x\n",  dstr,  (r=reg[0xC]));
-  sprintf(dstr, "%sinterlace: %i%i; cells: %i; shadow: %i\n\n", dstr, bit(r,2), bit(r,1), (r&0x80) ? 40 : 32,  bit(r,3));
-  sprintf(dstr, "%sscroll size: w: %i; h: %i\n\n",  dstr, reg[0x10]&3, (reg[0x10]&0x30)>>4);
-  sprintf(dstr, "%sSRAM: det: %i; eeprom: %i\n",  dstr, bit(Pico.m.sram_reg, 4), bit(Pico.m.sram_reg, 2));
-  sprintf(dstr, "%sCPU state: PC: %06x cycles: %i\n", dstr, SekPc, SekCyclesDoneT());
+  struct PicoVideo *pv=&Pico.video;
+  unsigned char *reg=pv->reg, r;
+  char *dstrp;
+
+  dstrp = dstr;
+  sprintf(dstrp, "mode set 1: %02x\n", (r=reg[0])); dstrp+=strlen(dstrp);
+  sprintf(dstrp, "display_disable: %i, M3: %i, palette: %i, ?, hints: %i\n", bit(r,0), bit(r,1), bit(r,2), bit(r,4));
+  dstrp+=strlen(dstrp);
+  sprintf(dstrp, "mode set 2: %02x\n", (r=reg[1])); dstrp+=strlen(dstrp);
+  sprintf(dstrp, "SMS/gen: %i, pal: %i, dma: %i, vints: %i, disp: %i, TMS: %i\n", bit(r,2), bit(r,3), bit(r,4),
+  	bit(r,5), bit(r,6), bit(r,7)); dstrp+=strlen(dstrp);
+  sprintf(dstrp, "mode set 3: %02x\n", (r=reg[0xB])); dstrp+=strlen(dstrp);
+  sprintf(dstrp, "LSCR: %i, HSCR: %i, 2cell vscroll: %i, IE2: %i\n", bit(r,0), bit(r,1), bit(r,2), bit(r,3)); dstrp+=strlen(dstrp);
+  sprintf(dstrp, "mode set 4: %02x\n", (r=reg[0xC])); dstrp+=strlen(dstrp);
+  sprintf(dstrp, "interlace: %i%i, cells: %i, shadow: %i\n", bit(r,2), bit(r,1), (r&0x80) ? 40 : 32,  bit(r,3));
+  dstrp+=strlen(dstrp);
+  sprintf(dstrp, "scroll size: w: %i, h: %i  SRAM: %i; eeprom: %i\n", reg[0x10]&3, (reg[0x10]&0x30)>>4,
+  	bit(Pico.m.sram_reg, 4), bit(Pico.m.sram_reg, 2)); dstrp+=strlen(dstrp);
+  sprintf(dstrp, "pend int: v:%i, h:%i, vdp status: %04x\n", bit(pv->pending_ints,5), bit(pv->pending_ints,4), pv->status);
+  dstrp+=strlen(dstrp);
 #ifdef EMU_C68K
-  for(r=0; r < 8; r++)
-    sprintf(dstr, "%sd%i=%08x, a%i=%08x\n", dstr, r, PicoCpu.d[r], r, PicoCpu.a[r]);
+  sprintf(dstrp, "M68k: PC: %06x, st_flg: %x, cycles: %u\n", SekPc, PicoCpu.state_flags, SekCyclesDoneT());
+  dstrp+=strlen(dstrp);
+  sprintf(dstrp, "d0=%08x, a0=%08x, osp=%08x, irql=%i\n", PicoCpu.d[0], PicoCpu.a[0], PicoCpu.osp, PicoCpu.irq); dstrp+=strlen(dstrp);
+  sprintf(dstrp, "d1=%08x, a1=%08x,  sr=%04x\n", PicoCpu.d[1], PicoCpu.a[1], CycloneGetSr(&PicoCpu)); dstrp+=strlen(dstrp);
+  for(r=2; r < 8; r++) {
+    sprintf(dstrp, "d%i=%08x, a%i=%08x\n", r, PicoCpu.d[r], r, PicoCpu.a[r]); dstrp+=strlen(dstrp);
+  }
 #endif
-  z80_debug(dstr);
+  sprintf(dstrp, "z80Run: %i, pal: %i, frame#: %i\n", Pico.m.z80Run, Pico.m.pal, Pico.m.frame_count); dstrp+=strlen(dstrp);
+  z80_debug(dstrp); dstrp+=strlen(dstrp);
+  if (strlen(dstr) > sizeof(dstr))
+    printf("warning: debug buffer overflow (%i/%i)\n", strlen(dstr), sizeof(dstr));
 
 #else
   struct PicoVideo *pvid=&Pico.video;
diff --git a/Pico/PicoInt.h b/Pico/PicoInt.h
index b624bd57..58d37d09 100644
--- a/Pico/PicoInt.h
+++ b/Pico/PicoInt.h
@@ -38,8 +38,8 @@ extern struct Cyclone PicoCpu, PicoCpuS68k;
 }
 #define SekPc (PicoCpu.pc-PicoCpu.membase)
 #define SekPcS68k (PicoCpuS68k.pc-PicoCpuS68k.membase)
-#define SekSetStop(x) { PicoCpu.stopped=x; if (x) PicoCpu.cycles=0; }
-#define SekSetStopS68k(x) { PicoCpuS68k.stopped=x; if (x) PicoCpuS68k.cycles=0; }
+#define SekSetStop(x) { PicoCpu.state_flags&=~1; if (x) { PicoCpu.state_flags|=1; PicoCpu.cycles=0; } }
+#define SekSetStopS68k(x) { PicoCpuS68k.state_flags&=~1; if (x) { PicoCpuS68k.state_flags|=1; PicoCpuS68k.cycles=0; } }
 #endif
 
 #ifdef EMU_A68K
diff --git a/Pico/Sek.c b/Pico/Sek.c
index 3ce710fe..24fda926 100644
--- a/Pico/Sek.c
+++ b/Pico/Sek.c
@@ -43,12 +43,13 @@ static int (*ResetCallback)()=DoReset;
 
 #ifdef EMU_C68K
 // interrupt acknowledgment
-static void SekIntAck(int level)
+static int SekIntAck(int level)
 {
   // try to emulate VDP's reaction to 68000 int ack
   if     (level == 4) Pico.video.pending_ints  =  0;
   else if(level == 6) Pico.video.pending_ints &= ~0x20;
   PicoCpu.irq = 0;
+  return CYCLONE_INT_ACK_AUTOVECTOR;
 }
 
 static void SekResetAck()
@@ -69,7 +70,7 @@ static int SekUnrecognizedOpcode()
   // see if we are not executing trash
   if (pc < 0x200 || (pc > Pico.romsize+4 && (pc&0xe00000)!=0xe00000)) {
     PicoCpu.cycles = 0;
-    PicoCpu.stopped = 1;
+    PicoCpu.state_flags |= 1;
     return 1;
   }
 #ifdef EMU_M68K // debugging cyclone
@@ -92,6 +93,11 @@ static int SekIntAckM68K(int level)
   CPU_INT_LEVEL = 0;
   return M68K_INT_ACK_AUTOVECTOR;
 }
+
+static int SekTasCallback(void)
+{
+  return 0; // no writeback
+}
 #endif
 
 
@@ -118,6 +124,7 @@ int SekInit()
     m68k_set_cpu_type(M68K_CPU_TYPE_68000);
     m68k_init();
     m68k_set_int_ack_callback(SekIntAckM68K);
+    m68k_set_tas_instr_callback(SekTasCallback);
     m68k_pulse_reset(); // Init cpu emulator
     m68k_set_context(oldcontext);
   }
@@ -132,7 +139,7 @@ int SekReset()
   if (Pico.rom==NULL) return 1;
 
 #ifdef EMU_C68K
-  PicoCpu.stopped=0;
+  PicoCpu.state_flags=0;
   PicoCpu.osp=0;
   PicoCpu.srh =0x27; // Supervisor mode
   PicoCpu.flags=4;   // Z set
@@ -161,6 +168,13 @@ int SekReset()
 
 int SekInterrupt(int irq)
 {
+#if defined(EMU_C68K) && defined(EMU_M68K)
+  {
+    extern unsigned int dbg_irq_level;
+    dbg_irq_level=irq;
+    return 0;
+  }
+#endif
 #ifdef EMU_C68K
   PicoCpu.irq=irq;
 #endif
diff --git a/Pico/_cyclone_debug.c b/Pico/_cyclone_debug.c
index 9112c09d..a15f85be 100644
--- a/Pico/_cyclone_debug.c
+++ b/Pico/_cyclone_debug.c
@@ -7,7 +7,7 @@ typedef unsigned char  u8;
 static unsigned int pppc, ops=0;
 extern unsigned int lastread_a, lastread_d[16], lastwrite_cyc_d[16], lastwrite_mus_d[16];
 extern int lrp_cyc, lrp_mus, lwp_cyc, lwp_mus;
-unsigned int old_regs[16], old_sr, ppop, have_illegal = 0;
+unsigned int old_regs[16], old_sr, ppop, have_illegal = 0, dbg_irq_level = 0;
 
 #undef dprintf
 #define dprintf(f,...) printf("%05i:%03i: " f "\n",Pico.m.frame_count,Pico.m.scanline,##__VA_ARGS__)
@@ -59,15 +59,22 @@ int CM_compareRun(int cyc)
     memcpy(old_regs, PicoCpu.d, 4*16);
     old_sr = CycloneGetSr(&PicoCpu);
 
-    /*
-    dprintf("---");
+#if 0
     {
       char buff[128];
       dprintf("---");
       m68k_disassemble(buff, pppc, M68K_CPU_TYPE_68000);
       dprintf("PC: %06x: %04x: %s", pppc, ppop, buff);
+      //dprintf("A7: %08x", PicoCpu.a[7]);
+    }
+#endif
+
+    if (dbg_irq_level)
+    {
+      PicoCpu.irq=dbg_irq_level;
+      m68k_set_irq(dbg_irq_level);
+      dbg_irq_level=0;
     }
-    */
 
     PicoCpu.cycles=1;
     CycloneRun(&PicoCpu);
@@ -99,8 +106,8 @@ int CM_compareRun(int cyc)
 
     // compare PC
     m68ki_cpu.pc&=~1;
-    if( SekPc != (m68ki_cpu.pc&0xffffff) ) {
-      dprintf("PC: %06x vs %06x", SekPc, m68ki_cpu.pc&0xffffff);
+    if( SekPc != (m68ki_cpu.pc/*&0xffffff*/) ) {
+      dprintf("PC: %06x vs %06x", SekPc, m68ki_cpu.pc/*&0xffffff*/);
       err=1;
     }
 
@@ -139,19 +146,25 @@ int CM_compareRun(int cyc)
     }
 
     // stopped
-    if((PicoCpu.stopped && !m68ki_cpu.stopped) || (!PicoCpu.stopped && m68ki_cpu.stopped)) {
-      dprintf("stopped: %i vs %i", PicoCpu.stopped, m68ki_cpu.stopped);
+    if(((PicoCpu.state_flags&1) && !m68ki_cpu.stopped) || (!(PicoCpu.state_flags&1) && m68ki_cpu.stopped)) {
+      dprintf("stopped: %i vs %i", PicoCpu.state_flags&1, m68ki_cpu.stopped);
+      err=1;
+    }
+
+    // tracing
+    if(((PicoCpu.state_flags&2) && !m68ki_tracing) || (!(PicoCpu.state_flags&2) && m68ki_tracing)) {
+      dprintf("tracing: %i vs %i", PicoCpu.state_flags&2, m68ki_tracing);
       err=1;
     }
 
     if(err) dumpPCandExit();
 
-/*
+#if 0
     if (PicoCpu.a[7] < 0x00ff0000 || PicoCpu.a[7] >= 0x01000000)
     {
       PicoCpu.a[7] = m68ki_cpu.dar[15] = 0xff8000;
     }
-*/
+#endif
 #if 0
     m68k_set_reg(M68K_REG_SR, ((mu_sr-1)&~0x2000)|(mu_sr&0x2000)); // broken
     CycloneSetSr(&PicoCpu, ((mu_sr-1)&~0x2000)|(mu_sr&0x2000));
diff --git a/Pico/cd/Memory.c b/Pico/cd/Memory.c
index 44f84d82..e0b5d08e 100644
--- a/Pico/cd/Memory.c
+++ b/Pico/cd/Memory.c
@@ -417,9 +417,9 @@ static void OtherWrite8End(u32 a, u32 d, int realsize)
 
 //u8 PicoReadM68k8_(u32 a);
 #ifdef _ASM_CD_MEMORY_C
-u8 PicoReadM68k8(u32 a);
+u32 PicoReadM68k8(u32 a);
 #else
-static u8 PicoReadM68k8(u32 a)
+static u32 PicoReadM68k8(u32 a)
 {
   u32 d=0;
 
@@ -468,17 +468,17 @@ static u8 PicoReadM68k8(u32 a)
 #ifdef __debug_io
   dprintf("r8 : %06x,   %02x @%06x", a&0xffffff, (u8)d, SekPc);
 #endif
-  return (u8)d;
+  return d;
 }
 #endif
 
 
 #ifdef _ASM_CD_MEMORY_C
-u16 PicoReadM68k16(u32 a);
+u32 PicoReadM68k16(u32 a);
 #else
-static u16 PicoReadM68k16(u32 a)
+static u32 PicoReadM68k16(u32 a)
 {
-  u16 d=0;
+  u32 d=0;
 
   if ((a&0xe00000)==0xe00000) { d=*(u16 *)(Pico.ram+(a&0xfffe)); goto end; } // Ram
 
@@ -515,7 +515,7 @@ static u16 PicoReadM68k16(u32 a)
   if ((a&0xffffc0)==0xa12000)
     rdprintf("m68k_regs r16: [%02x] @%06x", a&0x3f, SekPc);
 
-  d = (u16)OtherRead16(a, 16);
+  d = OtherRead16(a, 16);
 
   if ((a&0xffffc0)==0xa12000)
     rdprintf("ret = %04x", d);
@@ -778,9 +778,9 @@ static void PicoWriteM68k32(u32 a,u32 d)
 // -----------------------------------------------------------------
 
 #ifdef _ASM_CD_MEMORY_C
-u8 PicoReadS68k8(u32 a);
+u32 PicoReadS68k8(u32 a);
 #else
-static u8 PicoReadS68k8(u32 a)
+static u32 PicoReadS68k8(u32 a)
 {
   u32 d=0;
 
@@ -868,16 +868,15 @@ static u8 PicoReadS68k8(u32 a)
 #ifdef __debug_io2
   dprintf("s68k r8 : %06x,   %02x @%06x", a&0xffffff, (u8)d, SekPcS68k);
 #endif
-  return (u8)d;
+  return d;
 }
 #endif
 
 
-//u16 PicoReadS68k16_(u32 a);
 #ifdef _ASM_CD_MEMORY_C
-u16 PicoReadS68k16(u32 a);
+u32 PicoReadS68k16(u32 a);
 #else
-static u16 PicoReadS68k16(u32 a)
+static u32 PicoReadS68k16(u32 a)
 {
   u32 d=0;
 
diff --git a/Pico/cd/Pico.s b/Pico/cd/Pico.s
index 380ca5dd..b1f554c5 100644
--- a/Pico/cd/Pico.s
+++ b/Pico/cd/Pico.s
@@ -36,8 +36,8 @@ SekRunPS:
     ldr     lr, =PicoCpuS68k
     ldr     r2, =CycloneEnd_M68k
     ldr     r3, =CycloneEnd_S68k
-    str     r2, [r7,#0x54]
-    str     r3, [lr,#0x54]
+    str     r2, [r7,#0x98]
+    str     r3, [lr,#0x98]
 
     @ update aims
     ldr     r8, =SekCycleAim
@@ -132,15 +132,14 @@ SekRunPS_end:
     ldr     r7, =PicoCpu
     ldr     lr, =PicoCpuS68k
     mov     r0, #0
-    str     r0, [r7,#0x54]            @ remove CycloneEnd handler
-    str     r0, [lr,#0x54]
+    str     r0, [r7,#0x98]            @ remove CycloneEnd handler
+    str     r0, [lr,#0x98]
     @ return
     add     sp, sp, #2*4
     ldmfd   sp!, {r4-r11,pc}
 
 
 
-
 CycloneRunLocal:
                      ;@ r0-3 = Temporary registers
   ldr r4,[r7,#0x40]  ;@ r4 = Current PC + Memory Base
@@ -159,20 +158,23 @@ CycloneRunLocal:
   cmp r0,#6 ;@ irq>6 ?
   andle r1,r1,#7 ;@ Get interrupt mask
   cmple r0,r1 ;@ irq<=6: Is irq<=mask ?
-  ldrgt lr,[r7,#0x54]      @ Interrupt will definitely use more cycles than our step,
-  bgt CycloneDoInterrupt   @ so make this function return directly to CycloneEnd_*
+  bgt CycloneDoInterrupt
 NoIntsLocal:
 
-  ;@ Check if our processor is in stopped state and jump to opcode handler if not
-  ldr r0,[r7,#0x58]
+;@ Check if our processor is in special state
+;@ and jump to opcode handler if not
+  ldr r0,[r7,#0x58] ;@ state_flags
   ldrh r8,[r4],#2 ;@ Fetch first opcode
-  tst r0,r0 ;@ stopped?
+  tst r0,#0x03 ;@ special state?
   andeq r9,r9,#0xf0000000
   ldreq pc,[r6,r8,asl #2] ;@ Jump to opcode handler
 
-  @ stopped
+CycloneSpecial2:
+  tst r0,#2 ;@ tracing?
+  bne CycloneDoTrace
+;@ stopped or halted
   sub r4,r4,#2
-  ldr r1,[r7,#0x54]
+  ldr r1,[r7,#0x98]
   mov r5,#0
   bx r1
 
diff --git a/Pico/cd/Sek.c b/Pico/cd/Sek.c
index f28b1423..3788fcb6 100644
--- a/Pico/cd/Sek.c
+++ b/Pico/cd/Sek.c
@@ -39,13 +39,14 @@ static int SekIntAckS68kM(int level)
 #endif
 
 #ifdef EMU_C68K
-// interrupt acknowledgment
-static void SekIntAckS68k(int level)
+// interrupt acknowledgement
+static int SekIntAckS68k(int level)
 {
   int level_new = new_irq_level(level);
 
   dprintf("s68kACK %i -> %i", level, level_new);
   PicoCpuS68k.irq = level_new;
+  return CYCLONE_INT_ACK_AUTOVECTOR;
 }
 
 static void SekResetAck()
@@ -97,7 +98,7 @@ int SekResetS68k()
   if (Pico.rom==NULL) return 1;
 
 #ifdef EMU_C68K
-  PicoCpuS68k.stopped=0;
+  PicoCpuS68k.state_flags=0;
   PicoCpuS68k.osp=0;
   PicoCpuS68k.srh =0x27; // Supervisor mode
   PicoCpuS68k.flags=4;   // Z set
diff --git a/Pico/sound/sound.c b/Pico/sound/sound.c
index cc36a449..c0b32523 100644
--- a/Pico/sound/sound.c
+++ b/Pico/sound/sound.c
@@ -109,13 +109,14 @@ static void dac_recalculate()
 
 void sound_reset()
 {
-  extern int z80stopCycle;
   void *ym2612_regs;
 
   // also clear the internal registers+addr line
   ym2612_regs = YM2612GetRegs();
   memset(ym2612_regs, 0, 0x200+4);
-  z80stopCycle = 0;
+  // setting these to 0 might confuse timing code,
+  // so better set to something like this instead
+  z80startCycle = z80stopCycle = 0x01000000;
 
   sound_rerate(0);
 }
@@ -462,11 +463,11 @@ void z80_exit()
 #endif
 }
 
-#if defined(__DEBUG_PRINT) || defined(WIN32)
+#if defined(__DEBUG_PRINT) || defined(__GP2X__)
 void z80_debug(char *dstr)
 {
 #if defined(_USE_DRZ80)
-  sprintf(dstr, "%sZ80 state: PC: %04x SP: %04x\n", dstr, drZ80.Z80PC-drZ80.Z80PC_BASE, drZ80.Z80SP-drZ80.Z80SP_BASE);
+  sprintf(dstr, "Z80 state: PC: %04x SP: %04x\n", drZ80.Z80PC-drZ80.Z80PC_BASE, drZ80.Z80SP-drZ80.Z80SP_BASE);
 #endif
 }
 #endif
diff --git a/platform/gp2x/Makefile b/platform/gp2x/Makefile
index 377ea112..d9c40bb3 100644
--- a/platform/gp2x/Makefile
+++ b/platform/gp2x/Makefile
@@ -6,7 +6,7 @@ CROSS = arm-linux-
 
 # settings
 #mz80 = 1
-debug_cyclone = 0
+#debug_cyclone = 1
 asm_memory = 1
 asm_render = 1
 asm_ym2612 = 1
@@ -180,7 +180,7 @@ testrefr.gpe : test.o gp2x.o asmutils.o
 # build Cyclone
 ../../cpu/Cyclone/proj/Cyclone.s :
 	@echo building Cyclone...
-	@make -C ../../cpu/Cyclone/proj
+	@make -C ../../cpu/Cyclone/proj CONFIG_FILE=config_pico.h
 
 ../../cpu/musashi/m68kops.c :
 	@make -C ../../cpu/musashi
diff --git a/platform/gp2x/menu.c b/platform/gp2x/menu.c
index 22752796..3386a959 100644
--- a/platform/gp2x/menu.c
+++ b/platform/gp2x/menu.c
@@ -419,6 +419,36 @@ static char *romsel_loop(char *curr_path)
 	return ret;
 }
 
+// ------------ debug menu ------------
+
+char *debugString(void);
+
+static void draw_debug(void)
+{
+	char *p, *str = debugString();
+	int len, line;
+
+	gp2x_pd_clone_buffer2();
+
+	p = str;
+	for (line = 0; line < 24; line++)
+	{
+		while (*p && *p != '\n') p++;
+		len = p - str;
+		if (len > 55) len = 55;
+		gp2x_smalltext8_lim(1, line*10, str, len);
+		if (*p == 0) break;
+		p++; str = p;
+	}
+	gp2x_video_flip2();
+}
+
+static void debug_menu_loop(void)
+{
+	draw_debug();
+	wait_for_input(GP2X_B|GP2X_X);
+}
+
 // ------------ patch/gg menu ------------
 
 static void draw_patchlist(int sel)
@@ -444,7 +474,7 @@ static void draw_patchlist(int sel)
 }
 
 
-void patches_menu_loop(void)
+static void patches_menu_loop(void)
 {
 	int menu_sel = 0;
 	unsigned long inp = 0;
@@ -1239,7 +1269,8 @@ static void draw_menu_root(int menu_sel)
 
 static void menu_loop_root(void)
 {
-	int ret, menu_sel = 4, menu_sel_max = 8, menu_sel_min = 4;
+	static int menu_sel = 4;
+	int ret, menu_sel_max = 8, menu_sel_min = 4;
 	unsigned long inp = 0;
 	char curr_path[PATH_MAX], *selfname;
 	FILE *tstf;
@@ -1254,7 +1285,7 @@ static void menu_loop_root(void)
 		getcwd(curr_path, PATH_MAX);
 	}
 
-	if (rom_data) menu_sel = menu_sel_min = 0;
+	if (rom_data) menu_sel_min = 0;
 	if (PicoPatches) menu_sel_max = 9;
 
 	/* make sure action buttons are not pressed on entering menu */
@@ -1264,9 +1295,10 @@ static void menu_loop_root(void)
 	for (;;)
 	{
 		draw_menu_root(menu_sel);
-		inp = wait_for_input(GP2X_UP|GP2X_DOWN|GP2X_B|GP2X_X|GP2X_SELECT);
+		inp = wait_for_input(GP2X_UP|GP2X_DOWN|GP2X_B|GP2X_X|GP2X_SELECT|GP2X_L|GP2X_R);
 		if(inp & GP2X_UP  )  { menu_sel--; if (menu_sel < menu_sel_min) menu_sel = menu_sel_max; }
 		if(inp & GP2X_DOWN)  { menu_sel++; if (menu_sel > menu_sel_max) menu_sel = menu_sel_min; }
+		if((inp & (GP2X_L|GP2X_R)) == (GP2X_L|GP2X_R)) debug_menu_loop();
 		if(inp &(GP2X_SELECT|GP2X_X)){
 			if (rom_data) {
 				while (gp2x_joystick_read(1) & (GP2X_SELECT|GP2X_X)) usleep(50*1000); // wait until select is released
diff --git a/platform/gp2x/version.h b/platform/gp2x/version.h
index cc93f892..a3ccbd30 100644
--- a/platform/gp2x/version.h
+++ b/platform/gp2x/version.h
@@ -1,2 +1,2 @@
-#define VERSION "1.32"
+#define VERSION "1.33"