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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@14 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2007-01-02 22:17:05 +00:00
parent 8c1952f0d7
commit 672ad67113
13 changed files with 165 additions and 100 deletions
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12
cpu/musashi/m68kcpu.c
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@ -39,8 +39,8 @@ static const char* copyright_notice =
/* ================================= DATA ================================= */
/* ======================================================================== */
int m68ki_initial_cycles;
int m68ki_remaining_cycles = 0; /* Number of clocks remaining */
// int m68ki_initial_cycles; // moved to m68k_execute() stack
// int m68ki_remaining_cycles = 0; /* Number of clocks remaining */
uint m68ki_tracing = 0;
uint m68ki_address_space;
@ -771,6 +771,8 @@ void m68k_set_cpu_type(unsigned int cpu_type)
/* ASG: removed per-instruction interrupt checks */
int m68k_execute(int num_cycles)
{
int m68ki_initial_cycles;
/* Make sure we're not stopped */
if(!CPU_STOPPED)
{
@ -827,17 +829,19 @@ int m68k_execute(int num_cycles)
return num_cycles;
}
#if 0
int m68k_cycles_run(void)
{
return m68ki_initial_cycles - GET_CYCLES();
}
#endif
int m68k_cycles_remaining(void)
{
return GET_CYCLES();
}
#if 0
/* Change the timeslice */
void m68k_modify_timeslice(int cycles)
{
@ -851,7 +855,7 @@ void m68k_end_timeslice(void)
m68ki_initial_cycles = GET_CYCLES();
SET_CYCLES(0);
}
#endif
/* ASG: rewrote so that the int_level is a mask of the IPL0/IPL1/IPL2 bits */
/* KS: Modified so that IPL* bits match with mask positions in the SR

5
cpu/musashi/m68kcpu.h
View file

@ -891,13 +891,16 @@ typedef struct
void (*set_fc_callback)(unsigned int new_fc); /* Called when the CPU function code changes */
void (*instr_hook_callback)(void); /* Called every instruction cycle prior to execution */
sint cyc_remaining_cycles;
} m68ki_cpu_core;
extern m68ki_cpu_core *m68ki_cpu_p;
#define m68ki_cpu (*m68ki_cpu_p) // test
extern sint m68ki_remaining_cycles;
// extern sint m68ki_remaining_cycles;
#define m68ki_remaining_cycles m68ki_cpu_p->cyc_remaining_cycles
extern uint m68ki_tracing;
extern uint8 m68ki_shift_8_table[];
extern uint16 m68ki_shift_16_table[];