added some message logging

source/cd_hw/cdc.c

@@ -471,9 +471,6 @@ void cdc_reg_w(unsigned char data)
 
 unsigned char cdc_reg_r(void)
 {
-#ifdef LOG_CDC
-  error("CDC register %X read (%X) ", scd.regs[0x04>>1].byte.l & 0x0F, s68k.pc);
-#endif
   switch (scd.regs[0x04>>1].byte.l & 0x0F)
   {
     case 0x01:  /* IFSTAT */

source/cd_hw/scd.c

@@ -190,6 +190,9 @@ INLINE void s68k_poll_detect(reg)
       if (s68k.pc == s68k.poll.pc)
       {
         /* stop SUB-CPU until register is modified by MAIN-CPU */
+#ifdef LOG_SCD
+        error("s68k stopped from %d cycles\n", s68k.cycles);
+#endif
         s68k.cycles = s68k.cycle_end;
         s68k.stopped = 1 << reg;
       }
@@ -226,6 +229,9 @@ INLINE void s68k_poll_sync(reg)
 
     /* restart MAIN-CPU */
     m68k.stopped = 0;
+#ifdef LOG_SCD
+    error("m68k started from %d cycles\n", cycles);
+#endif
   }
 
   /* clear CPU register(s) access flags */
@@ -269,6 +275,9 @@ static unsigned int scd_read_byte(unsigned int address)
   if (address == 0xff8007)
   {
     unsigned int data = cdc_reg_r();
+#ifdef LOG_CDC
+    error("CDC register %X read 0x%02X (%X) ", scd.regs[0x04>>1].byte.l & 0x0F, data, s68k.pc);
+#endif
     return data;
   }
   
@@ -1667,9 +1676,6 @@ int scd_context_load(uint8 *state)
   load_param(&tmp32, 4); s68k_set_reg(M68K_REG_USP,tmp32);
   load_param(&tmp32, 4); s68k_set_reg(M68K_REG_ISP,tmp32);
 
-  /* update IRQ level */
-  s68k_update_irq((scd.pending & scd.regs[0x32>>1].byte.l) >> 1);
-
   return bufferptr;
 }
 

source/m68k/m68kcpu.c

@@ -273,7 +273,11 @@ void m68k_run(unsigned int cycles)
 
   /* Save end cycles count for when CPU is stopped */
   m68k.cycle_end = cycles;
-  
+
+#ifdef LOGVDP
+  error("[%d][%d] m68k run to %d cycles (%x)\n", v_counter, m68k.cycles, cycles, m68k.pc);
+#endif
+   
   while (m68k.cycles < cycles)
   {
     /* Set tracing accodring to T1. */

source/m68k/s68kcpu.c

@@ -211,13 +211,13 @@ void s68k_update_irq(unsigned int mask)
 
   /* Set IRQ level */
   CPU_INT_LEVEL = mask << 8;
-
-  /* Check interrupt mask to process IRQ  */
-  m68ki_check_interrupts();
   
 #ifdef LOG_SCD
   error("[%d][%d] IRQ Level = %d(0x%02x) (%x)\n", v_counter, s68k.cycles, CPU_INT_LEVEL>>8,FLAG_INT_MASK,s68k.pc);
 #endif
+
+  /* Check interrupt mask to process IRQ  */
+  m68ki_check_interrupts();
 }
 
 void s68k_run(unsigned int cycles) 
@@ -234,7 +234,10 @@ void s68k_run(unsigned int cycles)
 
   /* Save end cycles count for when CPU is stopped */
   s68k.cycle_end = cycles;
-  
+#ifdef LOG_SCD
+  error("[%d][%d] s68k run to %d cycles (%x), irq mask = %x (%x)\n", v_counter, s68k.cycles, cycles, s68k.pc,FLAG_INT_MASK, CPU_INT_LEVEL);
+#endif
+ 
   while (s68k.cycles < cycles)
   {
     /* Set tracing accodring to T1. */

source/mem68k.c

@@ -233,6 +233,9 @@ INLINE void m68k_poll_detect(reg)
       if (m68k.pc == m68k.poll.pc)
       {
         /* stop MAIN-CPU until register is modified by SUB-CPU */
+#ifdef LOG_SCD
+        error("m68k stopped from %d cycles\n", m68k.cycles);
+#endif
         m68k.cycles = m68k.cycle_end;
         m68k.stopped = 1 << reg;
       }
@@ -269,6 +272,9 @@ INLINE void m68k_poll_sync(reg)
 
     /* restart SUB-CPU */
     s68k.stopped = 0;
+#ifdef LOG_SCD
+    error("s68k started from %d cycles\n", cycles);
+#endif
   }
 
   /* clear CPU register(s) access flags */