Macintosh-Tools/macemu
1
0
Fork 0
mirror of https://github.com/kanjitalk755/macemu.git synced 2024-11-23 04:33:24 +00:00
Code Issues Projects Releases Wiki Activity

- changed set/get PC to better reflect direct or real addressing modes

Browse Source 
- removed m68k_get_pc_p()
- default to not using prefetch buffer
This commit is contained in:
gbeauche 2000-09-22 17:21:45 +00:00
parent b7177f6932
commit d3f64dcb5f
1 changed files with 14 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
BasiliskII/src/uae_cpu/newcpu.h
View File

@ -6,6 +6,9 @@
* Copyright 1995 Bernd Schmidt
*/
#ifndef NEWCPU_H
#define NEWCPU_H
#define SPCFLAG_STOP 2
#define SPCFLAG_DISK 4
#define SPCFLAG_INT 8
@ -140,6 +143,7 @@ static __inline__ uae_u32 get_ilong_prefetch (uae_s32 o)
static __inline__ void fill_prefetch_0 (void)
{
#if USE_PREFETCH_BUFFER
uae_u32 r;
#ifdef UNALIGNED_PROFITABLE
r = *(uae_u32 *)regs.pc_p;
@ -148,6 +152,7 @@ static __inline__ void fill_prefetch_0 (void)
r = do_get_mem_long ((uae_u32 *)regs.pc_p);
do_put_mem_long (&regs.prefetch, r);
#endif
#endif
}
#if 0
@ -188,8 +193,12 @@ static __inline__ uae_u32 next_ilong (void)
#if !defined USE_COMPILER
static __inline__ void m68k_setpc (uaecptr newpc)
{
#if REAL_ADDRESSING || DIRECT_ADDRESSING
regs.pc_p = get_real_address(newpc);
#else
regs.pc_p = regs.pc_oldp = get_real_address(newpc);
regs.pc = newpc;
#endif
}
#else
extern void m68k_setpc (uaecptr newpc);
@ -197,12 +206,11 @@ extern void m68k_setpc (uaecptr newpc);
static __inline__ uaecptr m68k_getpc (void)
{
#if REAL_ADDRESSING || DIRECT_ADDRESSING
return get_virtual_address(regs.pc_p);
#else
return regs.pc + ((char *)regs.pc_p - (char *)regs.pc_oldp);
}
static __inline__ uaecptr m68k_getpc_p (uae_u8 *p)
{
return regs.pc + ((char *)p - (char *)regs.pc_oldp);
#endif
}
#ifdef USE_COMPILER
@ -280,3 +288,4 @@ extern struct cputbl op_smalltbl_4[];
extern cpuop_func *cpufunctbl[65536] ASM_SYM_FOR_FUNC ("cpufunctbl");
#endif /* NEWCPU_H */