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rtasm: Implement immediate group 1 instructions. Fix SIB emition.

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This commit is contained in:
José Fonseca 2008-09-29 19:09:39 +09:00
parent fe1c9872ae
commit 6607f2cf19
2 changed files with 62 additions and 15 deletions
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66
src/gallium/auxiliary/rtasm/rtasm_x86sse.c
View file

@ -240,7 +240,8 @@ static void emit_modrm( struct x86_function *p,
/* Oh-oh we've stumbled into the SIB thing.
*/
if (regmem.file == file_REG32 &&
regmem.idx == reg_SP) {
regmem.idx == reg_SP &&
regmem.mod != mod_REG) {
emit_1ub(p, 0x24); /* simplistic! */
}
@ -435,25 +436,70 @@ void x86_call( struct x86_function *p, struct x86_reg reg)
}
/* michal:
* Temporary. As I need immediate operands, and dont want to mess with the codegen,
* I load the immediate into general purpose register and use it.
*/
void x86_mov_reg_imm( struct x86_function *p, struct x86_reg dst, int imm )
{
DUMP_RI( dst, imm );
assert(dst.file == file_REG32);
assert(dst.mod == mod_REG);
emit_1ub(p, 0xb8 + dst.idx);
emit_1i(p, imm);
}
void x86_add_reg_imm8( struct x86_function *p, struct x86_reg dst, ubyte imm )
/**
* Immediate group 1 instructions.
*/
static INLINE void
x86_group1_imm( struct x86_function *p,
unsigned op, struct x86_reg dst, int imm )
{
assert(dst.file == file_REG32);
assert(dst.mod == mod_REG);
if(-0x80 <= imm && imm < 0x80) {
emit_1ub(p, 0x83);
emit_modrm_noreg(p, op, dst);
emit_1b(p, (char)imm);
}
else {
emit_1ub(p, 0x81);
emit_modrm_noreg(p, op, dst);
emit_1i(p, imm);
}
}
void x86_add_imm( struct x86_function *p, struct x86_reg dst, int imm )
{
DUMP_RI( dst, imm );
assert(dst.mod == mod_REG);
emit_1ub(p, 0x80);
emit_modrm_noreg(p, 0, dst);
emit_1ub(p, imm);
x86_group1_imm(p, 0, dst, imm);
}
void x86_or_imm( struct x86_function *p, struct x86_reg dst, int imm )
{
DUMP_RI( dst, imm );
x86_group1_imm(p, 1, dst, imm);
}
void x86_and_imm( struct x86_function *p, struct x86_reg dst, int imm )
{
DUMP_RI( dst, imm );
x86_group1_imm(p, 4, dst, imm);
}
void x86_sub_imm( struct x86_function *p, struct x86_reg dst, int imm )
{
DUMP_RI( dst, imm );
x86_group1_imm(p, 5, dst, imm);
}
void x86_xor_imm( struct x86_function *p, struct x86_reg dst, int imm )
{
DUMP_RI( dst, imm );
x86_group1_imm(p, 6, dst, imm);
}
void x86_cmp_imm( struct x86_function *p, struct x86_reg dst, int imm )
{
DUMP_RI( dst, imm );
x86_group1_imm(p, 7, dst, imm);
}

11
src/gallium/auxiliary/rtasm/rtasm_x86sse.h
View file

@ -152,12 +152,13 @@ void x86_jmp( struct x86_function *p, int label );
/* void x86_call( struct x86_function *p, void (*label)() ); */
void x86_call( struct x86_function *p, struct x86_reg reg);
/* michal:
* Temporary. As I need immediate operands, and dont want to mess with the codegen,
* I load the immediate into general purpose register and use it.
*/
void x86_mov_reg_imm( struct x86_function *p, struct x86_reg dst, int imm );
void x86_add_reg_imm8( struct x86_function *p, struct x86_reg dst, ubyte imm );
void x86_add_imm( struct x86_function *p, struct x86_reg dst, int imm );
void x86_or_imm( struct x86_function *p, struct x86_reg dst, int imm );
void x86_and_imm( struct x86_function *p, struct x86_reg dst, int imm );
void x86_sub_imm( struct x86_function *p, struct x86_reg dst, int imm );
void x86_xor_imm( struct x86_function *p, struct x86_reg dst, int imm );
void x86_cmp_imm( struct x86_function *p, struct x86_reg dst, int imm );
/* Macro for sse_shufps() and sse2_pshufd():