motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-07 17:53:56 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

target/loongarch: move translate modules to tcg/

Browse source 
Introduce the target/loongarch/tcg directory. Its purpose is to hold the TCG
code that is selected by CONFIG_TCG

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20240102020200.3462097-2-gaosong@loongson.cn>
This commit is contained in:
Song Gao 2024-01-02 10:02:00 +08:00
parent beb60920a1
commit 5c23704e47
24 changed files with 20 additions and 14 deletions
Download patch file Download diff file Expand all files Collapse all files

72
target/loongarch/tcg/insn_trans/trans_fcmp.c.inc Normal file
View file

@ -0,0 +1,72 @@
/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (c) 2021 Loongson Technology Corporation Limited
*/
/* bit0(signaling/quiet) bit1(lt) bit2(eq) bit3(un) bit4(neq) */
static uint32_t get_fcmp_flags(int cond)
{
uint32_t flags = 0;
if (cond & 0x1) {
flags |= FCMP_LT;
}
if (cond & 0x2) {
flags |= FCMP_EQ;
}
if (cond & 0x4) {
flags |= FCMP_UN;
}
if (cond & 0x8) {
flags |= FCMP_GT | FCMP_LT;
}
return flags;
}
static bool trans_fcmp_cond_s(DisasContext *ctx, arg_fcmp_cond_s *a)
{
TCGv var, src1, src2;
uint32_t flags;
void (*fn)(TCGv, TCGv_env, TCGv, TCGv, TCGv_i32);
if (!avail_FP_SP(ctx)) {
return false;
}
CHECK_FPE;
var = tcg_temp_new();
src1 = get_fpr(ctx, a->fj);
src2 = get_fpr(ctx, a->fk);
fn = (a->fcond & 1 ? gen_helper_fcmp_s_s : gen_helper_fcmp_c_s);
flags = get_fcmp_flags(a->fcond >> 1);
fn(var, tcg_env, src1, src2, tcg_constant_i32(flags));
tcg_gen_st8_tl(var, tcg_env, offsetof(CPULoongArchState, cf[a->cd]));
return true;
}
static bool trans_fcmp_cond_d(DisasContext *ctx, arg_fcmp_cond_d *a)
{
TCGv var, src1, src2;
uint32_t flags;
void (*fn)(TCGv, TCGv_env, TCGv, TCGv, TCGv_i32);
if (!avail_FP_DP(ctx)) {
return false;
}
CHECK_FPE;
var = tcg_temp_new();
src1 = get_fpr(ctx, a->fj);
src2 = get_fpr(ctx, a->fk);
fn = (a->fcond & 1 ? gen_helper_fcmp_s_d : gen_helper_fcmp_c_d);
flags = get_fcmp_flags(a->fcond >> 1);
fn(var, tcg_env, src1, src2, tcg_constant_i32(flags));
tcg_gen_st8_tl(var, tcg_env, offsetof(CPULoongArchState, cf[a->cd]));
return true;
}