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32x: drc: new smc handling, write handlers adjusted.

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git-svn-id: file:///home/notaz/opt/svn/PicoDrive@820 be3aeb3a-fb24-0410-a615-afba39da0efa
This commit is contained in:
notaz 2009-10-18 20:52:50 +00:00
parent 2b2b46b05d
commit f4bb5d6b2c
9 changed files with 389 additions and 150 deletions
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45
cpu/drc/emit_x86.c
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@ -7,6 +7,8 @@
#define COUNT_OP
#endif
enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI };
// TODO: move
static int reg_map_g2h[] = {
-1, -1, -1, -1,
@ -17,14 +19,14 @@ static int reg_map_g2h[] = {
-1, -1, -1, -1,
};
enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI };
#define CONTEXT_REG xBP
#define EMIT_PTR(ptr, val, type) \
*(type *)(ptr) = val
#define EMIT(val, type) { \
EMIT_PTR(tcache_ptr, val, type); \
tcache_ptr = (char *)tcache_ptr + sizeof(type); \
tcache_ptr += sizeof(type); \
}
#define EMIT_OP(op) { \
@ -99,32 +101,29 @@ enum { xAX = 0, xCX, xDX, xBX, xSP, xBP, xSI, xDI };
}
#define EMIT_CONDITIONAL(code, is_nonzero) { \
char *ptr = tcache_ptr; \
tcache_ptr = (char *)tcache_ptr + 2; \
u8 *ptr = tcache_ptr; \
tcache_ptr = tcache_ptr + 2; \
code; \
EMIT_PTR(ptr, ((is_nonzero) ? 0x75 : 0x74), u8); \
EMIT_PTR(ptr + 1, ((char *)tcache_ptr - (ptr + 2)), u8); \
EMIT_PTR(ptr + 1, (tcache_ptr - (ptr + 2)), u8); \
}
static void emith_pass_arg(int count, ...)
{
va_list vl;
int i;
va_start(vl, count);
for (i = 0; i < count; i++) {
long av = va_arg(vl, long);
int r = 7;
switch (i) {
case 0: r = xAX; break;
case 1: r = xDX; break;
case 2: r = xCX; break;
}
emith_move_r_imm(r, av);
#define arg2reg(rd, arg) \
switch (arg) { \
case 0: rd = xAX; break; \
case 1: rd = xDX; break; \
case 2: rd = xCX; break; \
}
va_end(vl);
#define emith_pass_arg_r(arg, reg) { \
int rd = 7; \
arg2reg(rd, arg); \
emith_move_r_r(rd, reg); \
}
#define emith_pass_arg_imm(arg, imm) { \
int rd = 7; \
arg2reg(rd, arg); \
emith_move_r_imm(rd, imm); \
}