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#include "config.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/types.h>
#include <orc/orcprogram.h>
#include <orc/x86.h>
#define SIZE 65536
/* sse rules */
static void
sse_emit_loadi_s16 (OrcProgram *p, int reg, int value)
{
if (value == 0) {
printf(" pxor %%%s, %%%s\n", x86_get_regname_sse(reg),
x86_get_regname_sse(reg));
*p->codeptr++ = 0x0f;
*p->codeptr++ = 0xef;
x86_emit_modrm_reg (p, reg, reg);
} else {
x86_emit_mov_imm_reg (p, 4, value, X86_ECX);
printf(" movd %%ecx, %%%s\n", x86_get_regname_sse(reg));
*p->codeptr++ = 0x66;
*p->codeptr++ = 0x0f;
*p->codeptr++ = 0x6e;
x86_emit_modrm_reg (p, X86_ECX, reg);
printf(" pshufw $0, %%%s, %%%s\n", x86_get_regname_sse(reg),
x86_get_regname_sse(reg));
*p->codeptr++ = 0x66;
*p->codeptr++ = 0x0f;
*p->codeptr++ = 0x70;
x86_emit_modrm_reg (p, reg, reg);
*p->codeptr++ = 0x00;
}
}
static void
sse_rule_loadi_s16 (OrcProgram *p, void *user, OrcInstruction *insn)
{
sse_emit_loadi_s16 (p, p->vars[insn->args[0]].alloc,
p->vars[insn->args[2]].s16);
}
static void
sse_rule_add_s16 (OrcProgram *p, void *user, OrcInstruction *insn)
{
printf(" paddw %%%s, %%%s\n",
x86_get_regname_sse(p->vars[insn->args[2]].alloc),
x86_get_regname_sse(p->vars[insn->args[0]].alloc));
*p->codeptr++ = 0x66;
*p->codeptr++ = 0x0f;
*p->codeptr++ = 0xfd;
x86_emit_modrm_reg (p, p->vars[insn->args[2]].alloc,
p->vars[insn->args[0]].alloc);
}
static void
sse_rule_sub_s16 (OrcProgram *p, void *user, OrcInstruction *insn)
{
printf(" psubw %%%s, %%%s\n",
x86_get_regname_sse(p->vars[insn->args[2]].alloc),
x86_get_regname_sse(p->vars[insn->args[0]].alloc));
*p->codeptr++ = 0x66;
*p->codeptr++ = 0x0f;
*p->codeptr++ = 0xf9;
x86_emit_modrm_reg (p, p->vars[insn->args[2]].alloc,
p->vars[insn->args[0]].alloc);
}
static void
sse_rule_mul_s16 (OrcProgram *p, void *user, OrcInstruction *insn)
{
printf(" pmullw %%%s, %%%s\n",
x86_get_regname_sse(p->vars[insn->args[2]].alloc),
x86_get_regname_sse(p->vars[insn->args[0]].alloc));
*p->codeptr++ = 0x66;
*p->codeptr++ = 0x0f;
*p->codeptr++ = 0xd5;
x86_emit_modrm_reg (p, p->vars[insn->args[2]].alloc,
p->vars[insn->args[0]].alloc);
}
static void
sse_rule_lshift_s16 (OrcProgram *p, void *user, OrcInstruction *insn)
{
if (p->vars[insn->args[2]].vartype == ORC_VAR_TYPE_CONST) {
printf(" psllw $%d, %%%s\n",
p->vars[insn->args[2]].s16,
x86_get_regname_sse(p->vars[insn->args[0]].alloc));
*p->codeptr++ = 0x66;
*p->codeptr++ = 0x0f;
*p->codeptr++ = 0x71;
x86_emit_modrm_reg (p, p->vars[insn->args[0]].alloc, 6);
*p->codeptr++ = p->vars[insn->args[2]].s16;
} else {
/* FIXME this doesn't work quite right */
printf(" psllw %%%s, %%%s\n",
x86_get_regname_sse(p->vars[insn->args[2]].alloc),
x86_get_regname_sse(p->vars[insn->args[0]].alloc));
*p->codeptr++ = 0x66;
*p->codeptr++ = 0x0f;
*p->codeptr++ = 0xf1;
x86_emit_modrm_reg (p, p->vars[insn->args[0]].alloc,
p->vars[insn->args[2]].alloc);
}
}
static void
sse_rule_rshift_s16 (OrcProgram *p, void *user, OrcInstruction *insn)
{
if (p->vars[insn->args[2]].vartype == ORC_VAR_TYPE_CONST) {
printf(" psraw $%d, %%%s\n",
p->vars[insn->args[2]].s16,
x86_get_regname_sse(p->vars[insn->args[0]].alloc));
*p->codeptr++ = 0x66;
*p->codeptr++ = 0x0f;
*p->codeptr++ = 0x71;
x86_emit_modrm_reg (p, p->vars[insn->args[0]].alloc, 4);
*p->codeptr++ = p->vars[insn->args[2]].s16;
} else {
/* FIXME this doesn't work quite right */
printf(" psraw %%%s, %%%s\n",
x86_get_regname_sse(p->vars[insn->args[2]].alloc),
x86_get_regname_sse(p->vars[insn->args[0]].alloc));
*p->codeptr++ = 0x66;
*p->codeptr++ = 0x0f;
*p->codeptr++ = 0xe1;
x86_emit_modrm_reg (p, p->vars[insn->args[0]].alloc,
p->vars[insn->args[2]].alloc);
}
}
void
orc_program_sse_register_rules (void)
{
int i;
orc_rule_register ("_loadi_s16", ORC_RULE_SSE_4, sse_rule_loadi_s16, NULL,
ORC_RULE_REG_IMM);
for(i=ORC_RULE_SSE_1; i <= ORC_RULE_SSE_8; i++) {
orc_rule_register ("add_s16", i, sse_rule_add_s16, NULL,
ORC_RULE_REG_REG);
orc_rule_register ("sub_s16", i, sse_rule_sub_s16, NULL,
ORC_RULE_REG_REG);
orc_rule_register ("mul_s16", i, sse_rule_mul_s16, NULL,
ORC_RULE_REG_REG);
orc_rule_register ("lshift_s16", i, sse_rule_lshift_s16, NULL,
ORC_RULE_REG_REG);
orc_rule_register ("rshift_s16", i, sse_rule_rshift_s16, NULL,
ORC_RULE_REG_REG);
}
}
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