motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-06 01:03:55 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

target/loongarch: Implement vhaddw/vhsubw

Browse source 
This patch includes:
- VHADDW.{H.B/W.H/D.W/Q.D/HU.BU/WU.HU/DU.WU/QU.DU};
- VHSUBW.{H.B/W.H/D.W/Q.D/HU.BU/WU.HU/DU.WU/QU.DU}.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Song Gao <gaosong@loongson.cn>
Message-Id: <20230504122810.4094787-9-gaosong@loongson.cn>
This commit is contained in:
Song Gao 2023-05-04 20:27:34 +08:00
parent a94cb91107
commit c037fbc97d
No known key found for this signature in database
GPG key ID: 40A2FFF239263EDF
5 changed files with 150 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

81
target/loongarch/lsx_helper.c
View file

@ -4,3 +4,84 @@
*
* Copyright (c) 2022-2023 Loongson Technology Corporation Limited
*/
#include "qemu/osdep.h"
#include "cpu.h"
#include "exec/exec-all.h"
#include "exec/helper-proto.h"
#define DO_ADD(a, b) (a + b)
#define DO_SUB(a, b) (a - b)
#define DO_ODD_EVEN(NAME, BIT, E1, E2, DO_OP) \
void HELPER(NAME)(CPULoongArchState *env, \
uint32_t vd, uint32_t vj, uint32_t vk) \
{ \
int i; \
VReg *Vd = &(env->fpr[vd].vreg); \
VReg *Vj = &(env->fpr[vj].vreg); \
VReg *Vk = &(env->fpr[vk].vreg); \
typedef __typeof(Vd->E1(0)) TD; \
\
for (i = 0; i < LSX_LEN/BIT; i++) { \
Vd->E1(i) = DO_OP((TD)Vj->E2(2 * i + 1), (TD)Vk->E2(2 * i)); \
} \
}
DO_ODD_EVEN(vhaddw_h_b, 16, H, B, DO_ADD)
DO_ODD_EVEN(vhaddw_w_h, 32, W, H, DO_ADD)
DO_ODD_EVEN(vhaddw_d_w, 64, D, W, DO_ADD)
void HELPER(vhaddw_q_d)(CPULoongArchState *env,
uint32_t vd, uint32_t vj, uint32_t vk)
{
VReg *Vd = &(env->fpr[vd].vreg);
VReg *Vj = &(env->fpr[vj].vreg);
VReg *Vk = &(env->fpr[vk].vreg);
Vd->Q(0) = int128_add(int128_makes64(Vj->D(1)), int128_makes64(Vk->D(0)));
}
DO_ODD_EVEN(vhsubw_h_b, 16, H, B, DO_SUB)
DO_ODD_EVEN(vhsubw_w_h, 32, W, H, DO_SUB)
DO_ODD_EVEN(vhsubw_d_w, 64, D, W, DO_SUB)
void HELPER(vhsubw_q_d)(CPULoongArchState *env,
uint32_t vd, uint32_t vj, uint32_t vk)
{
VReg *Vd = &(env->fpr[vd].vreg);
VReg *Vj = &(env->fpr[vj].vreg);
VReg *Vk = &(env->fpr[vk].vreg);
Vd->Q(0) = int128_sub(int128_makes64(Vj->D(1)), int128_makes64(Vk->D(0)));
}
DO_ODD_EVEN(vhaddw_hu_bu, 16, UH, UB, DO_ADD)
DO_ODD_EVEN(vhaddw_wu_hu, 32, UW, UH, DO_ADD)
DO_ODD_EVEN(vhaddw_du_wu, 64, UD, UW, DO_ADD)
void HELPER(vhaddw_qu_du)(CPULoongArchState *env,
uint32_t vd, uint32_t vj, uint32_t vk)
{
VReg *Vd = &(env->fpr[vd].vreg);
VReg *Vj = &(env->fpr[vj].vreg);
VReg *Vk = &(env->fpr[vk].vreg);
Vd->Q(0) = int128_add(int128_make64((uint64_t)Vj->D(1)),
int128_make64((uint64_t)Vk->D(0)));
}
DO_ODD_EVEN(vhsubw_hu_bu, 16, UH, UB, DO_SUB)
DO_ODD_EVEN(vhsubw_wu_hu, 32, UW, UH, DO_SUB)
DO_ODD_EVEN(vhsubw_du_wu, 64, UD, UW, DO_SUB)
void HELPER(vhsubw_qu_du)(CPULoongArchState *env,
uint32_t vd, uint32_t vj, uint32_t vk)
{
VReg *Vd = &(env->fpr[vd].vreg);
VReg *Vj = &(env->fpr[vj].vreg);
VReg *Vk = &(env->fpr[vk].vreg);
Vd->Q(0) = int128_sub(int128_make64((uint64_t)Vj->D(1)),
int128_make64((uint64_t)Vk->D(0)));
}