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32x drc functional on ARM, random adjustments

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@824 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2009-10-22 20:16:32 +00:00
parent 274f95a9a9
commit 553c3eaa3a
12 changed files with 86 additions and 63 deletions
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42
cpu/drc/emit_arm.c
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@ -10,6 +10,7 @@
do { \
*(u32 *)ptr = x; \
ptr = (void *)((u8 *)ptr + sizeof(u32)); \
COUNT_OP; \
} while (0)
#define EMIT(x) EMIT_PTR(tcache_ptr, x)
@ -170,29 +171,26 @@
static void emith_op_imm(int cond, int op, int r, unsigned int imm)
{
u32 v, ror2;
int ror2, rn = r;
u32 v;
if (imm == 0 && op != A_OP_MOV)
if (op == A_OP_MOV)
rn = 0;
else if (imm == 0)
return;
/* shift down to get starting rot2 */
for (v = imm, ror2 = 0; v && !(v & 3); v >>= 2)
ror2++;
ror2 = 16 - ror2;
for (v = imm, ror2 = 0; v != 0 || op == A_OP_MOV; v >>= 8, ror2 -= 8/2) {
/* shift down to get 'best' rot2 */
for (; v && !(v & 3); v >>= 2)
ror2--;
EOP_C_DOP_IMM(cond, op, 0, op == A_OP_MOV ? 0 : r, r, ror2 & 0x0f, v & 0xff);
if (op == A_OP_MOV)
op = A_OP_ORR;
EOP_C_DOP_IMM(cond, op, 0, rn, r, ror2 & 0x0f, v & 0xff);
v >>= 8;
if (v & 0xff)
EOP_C_DOP_IMM(cond, op, 0, r, r, (ror2 - 8/2) & 0x0f, v & 0xff);
v >>= 8;
if (v & 0xff)
EOP_C_DOP_IMM(cond, op, 0, r, r, (ror2 - 16/2) & 0x0f, v & 0xff);
v >>= 8;
if (v & 0xff)
EOP_C_DOP_IMM(cond, op, 0, r, r, (ror2 - 24/2) & 0x0f, v & 0xff);
if (op == A_OP_MOV) {
op = A_OP_ORR;
rn = r;
}
}
}
#define is_offset_24(val) \
@ -227,14 +225,6 @@ static int emith_xbranch(int cond, void *target, int is_call)
return (u32 *)tcache_ptr - start_ptr;
}
static void handle_caches(void)
{
#ifdef ARM
extern void cache_flush_d_inval_i(const void *start_addr, const void *end_addr);
cache_flush_d_inval_i(tcache, tcache_ptr);
#endif
}
#define EMITH_CONDITIONAL(code, is_nonzero) { \
u32 val, cond, *ptr; \