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68k, synchronize timing in fame and musashi (for debugging)

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This commit is contained in:
kub 2021-05-24 23:10:03 +02:00
parent b26071be31
commit 5e04c2f37f
6 changed files with 15 additions and 9 deletions
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10
cpu/musashi/m68kcpu.c
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@ -43,7 +43,7 @@ extern void m68040_fpu_op1(void);
/* ================================= DATA ================================= */
/* ======================================================================== */
int m68ki_initial_cycles;
//int m68ki_initial_cycles;
//int m68ki_remaining_cycles = 0; /* Number of clocks remaining */
uint m68ki_tracing = 0;
uint m68ki_address_space;
@ -828,6 +828,10 @@ int m68k_execute(int num_cycles)
m68ki_instruction_jump_table[REG_IR]();
USE_CYCLES(CYC_INSTRUCTION[REG_IR]); // moving this up may cause a deadlock
/* ASG: update cycles */
USE_CYCLES(CPU_INT_CYCLES);
CPU_INT_CYCLES = 0;
/* Trace m68k_exception, if necessary */
m68ki_exception_if_trace(); /* auto-disable (see m68kcpu.h) */
@ -839,10 +843,6 @@ int m68k_execute(int num_cycles)
/* set previous PC to current PC for the next entry into the loop */
REG_PPC = REG_PC;
/* ASG: update cycles */
USE_CYCLES(CPU_INT_CYCLES);
CPU_INT_CYCLES = 0;
/* return how many clocks we used */
return m68ki_initial_cycles - GET_CYCLES();
}