mirror of
https://github.com/Oibaf66/uae-wii.git
synced 2024-06-03 00:58:47 +02:00
110 lines
2.9 KiB
C
110 lines
2.9 KiB
C
|
|
STATIC_INLINE uae_u32 get_word_prefetch (struct regstruct *regs, int o)
|
|
{
|
|
uae_u32 v = regs->irc;
|
|
regs->irc = get_word (m68k_getpc(regs) + o);
|
|
return v;
|
|
}
|
|
STATIC_INLINE uae_u32 get_long_prefetch (struct regstruct *regs, int o)
|
|
{
|
|
uae_u32 v = get_word_prefetch (regs, o) << 16;
|
|
v |= get_word_prefetch (regs, o + 2);
|
|
return v;
|
|
}
|
|
|
|
#ifdef CPUEMU_6
|
|
STATIC_INLINE uae_u32 mem_access_delay_word_read (uaecptr addr)
|
|
{
|
|
if (addr < 0x200000 || (addr >= 0xc00000 && addr < 0xe00000)) {
|
|
return wait_cpu_cycle_read (addr, 1);
|
|
} else if (!(addr >= 0xa00000 && addr < 0xc00000)) {
|
|
do_cycles_ce (4 * CYCLE_UNIT / 2);
|
|
}
|
|
return get_word (addr);
|
|
}
|
|
STATIC_INLINE uae_u32 mem_access_delay_byte_read (uaecptr addr)
|
|
{
|
|
if (addr < 0x200000 || (addr >= 0xc00000 && addr < 0xe00000)) {
|
|
return wait_cpu_cycle_read (addr, 0);
|
|
} else if (!(addr >= 0xa00000 && addr < 0xc00000)) {
|
|
do_cycles_ce (4 * CYCLE_UNIT / 2);
|
|
}
|
|
return get_byte (addr);
|
|
}
|
|
STATIC_INLINE void mem_access_delay_byte_write (uaecptr addr, uae_u32 v)
|
|
{
|
|
if (addr < 0x200000 || (addr >= 0xc00000 && addr < 0xe00000)) {
|
|
wait_cpu_cycle_write (addr, 0, v);
|
|
return;
|
|
} else if (!(addr >= 0xa00000 && addr < 0xc00000)) {
|
|
do_cycles_ce (4 * CYCLE_UNIT / 2);
|
|
}
|
|
put_byte (addr, v);
|
|
}
|
|
STATIC_INLINE void mem_access_delay_word_write (uaecptr addr, uae_u32 v)
|
|
{
|
|
if (addr < 0x200000 || (addr >= 0xc00000 && addr < 0xe00000)) {
|
|
wait_cpu_cycle_write (addr, 1, v);
|
|
return;
|
|
} else if (!(addr >= 0xa00000 && addr < 0xc00000)) {
|
|
do_cycles_ce (4 * CYCLE_UNIT / 2);
|
|
}
|
|
put_word (addr, v);
|
|
}
|
|
|
|
STATIC_INLINE uae_u32 get_word_ce (uaecptr addr)
|
|
{
|
|
return mem_access_delay_word_read (addr);
|
|
}
|
|
|
|
STATIC_INLINE uae_u32 get_byte_ce (uaecptr addr)
|
|
{
|
|
return mem_access_delay_byte_read (addr);
|
|
}
|
|
|
|
STATIC_INLINE uae_u32 get_word_ce_prefetch (struct regstruct *regs, int o)
|
|
{
|
|
uae_u32 v = regs->irc;
|
|
regs->irc = get_word_ce (m68k_getpc(regs) + o);
|
|
return v;
|
|
}
|
|
|
|
STATIC_INLINE void put_word_ce (uaecptr addr, uae_u16 v)
|
|
{
|
|
mem_access_delay_word_write (addr, v);
|
|
}
|
|
|
|
STATIC_INLINE void put_byte_ce (uaecptr addr, uae_u8 v)
|
|
{
|
|
mem_access_delay_byte_write (addr, v);
|
|
}
|
|
|
|
STATIC_INLINE void m68k_do_rts_ce (struct regstruct *regs)
|
|
{
|
|
uaecptr pc;
|
|
pc = get_word_ce (m68k_areg (regs, 7)) << 16;
|
|
pc |= get_word_ce (m68k_areg (regs, 7) + 2);
|
|
m68k_areg (regs, 7) += 4;
|
|
if (pc & 1)
|
|
exception3 (0x4e75, m68k_getpc (regs), pc);
|
|
else
|
|
m68k_setpc (regs, pc);
|
|
}
|
|
|
|
STATIC_INLINE void m68k_do_bsr_ce (struct regstruct *regs, uaecptr oldpc, uae_s32 offset)
|
|
{
|
|
m68k_areg (regs, 7) -= 4;
|
|
put_word_ce (m68k_areg (regs, 7), oldpc >> 16);
|
|
put_word_ce (m68k_areg (regs, 7) + 2, oldpc);
|
|
m68k_incpc (regs, offset);
|
|
}
|
|
|
|
STATIC_INLINE void m68k_do_jsr_ce (struct regstruct *regs, uaecptr oldpc, uaecptr dest)
|
|
{
|
|
m68k_areg (regs, 7) -= 4;
|
|
put_word_ce (m68k_areg (regs, 7), oldpc >> 16);
|
|
put_word_ce (m68k_areg (regs, 7) + 2, oldpc);
|
|
m68k_setpc (regs, dest);
|
|
}
|
|
#endif
|