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target-tricore: Add instructions of RRR1 opcode format, which have 0xe3 as first opcode

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Add helpers helper_subadr_h/_ssov which subs one halfword and adds one
halfword, rounds / and saturates each half word independently.

Add microcode helper functions:
    * gen_msubad_h/ads_h: multiply two halfwords left justified and sub from the
                          first one word and add the second one word
                          / and saturate each resulting word independetly.
    * gen_msubadm_h/adms_h: multiply two halfwords in q-format left justified
                            and sub from the first one word and add to
                            the second one word / and saturate each resulting
                            word independetly.
    * gen_msubadr32_h/32s_h: multiply two halfwords in q-format left justified
                             and sub from the first one word and add to
                             the second one word, round both results / and
                             saturate each resulting word independetly.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
This commit is contained in:
Bastian Koppelmann 2015-02-25 11:55:52 +00:00
parent 62e47b2e6d
commit 068fac77c8
4 changed files with 415 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
target-tricore/helper.h
View File

@ -29,6 +29,7 @@ DEF_HELPER_3(sub_suov, i32, env, i32, i32)
DEF_HELPER_3(sub_h_ssov, i32, env, i32, i32)
DEF_HELPER_3(sub_h_suov, i32, env, i32, i32)
DEF_HELPER_4(subr_h_ssov, i32, env, i64, i32, i32)
DEF_HELPER_4(subadr_h_ssov, i32, env, i64, i32, i32)
DEF_HELPER_3(mul_ssov, i32, env, i32, i32)
DEF_HELPER_3(mul_suov, i32, env, i32, i32)
DEF_HELPER_3(sha_ssov, i32, env, i32, i32)
@ -63,6 +64,7 @@ DEF_HELPER_3(add_h, i32, env, i32, i32)
DEF_HELPER_3(sub_b, i32, env, i32, i32)
DEF_HELPER_3(sub_h, i32, env, i32, i32)
DEF_HELPER_4(subr_h, i32, env, i64, i32, i32)
DEF_HELPER_4(subadr_h, i32, env, i64, i32, i32)
DEF_HELPER_5(msubr_q, i32, env, i32, i32, i32, i32)
DEF_HELPER_FLAGS_2(eq_b, TCG_CALL_NO_RWG_SE, i32, i32, i32)
DEF_HELPER_FLAGS_2(eq_h, TCG_CALL_NO_RWG_SE, i32, i32, i32)

84
target-tricore/op_helper.c
View File

@ -421,6 +421,52 @@ uint32_t helper_subr_h_ssov(CPUTriCoreState *env, uint64_t r1, uint32_t r2_l,
return (result1 & 0xffff0000ULL) | ((result0 >> 16) & 0xffffULL);
}
uint32_t helper_subadr_h_ssov(CPUTriCoreState *env, uint64_t r1, uint32_t r2_l,
uint32_t r2_h)
{
int64_t mul_res0 = sextract64(r1, 0, 32);
int64_t mul_res1 = sextract64(r1, 32, 32);
int64_t r2_low = sextract64(r2_l, 0, 32);
int64_t r2_high = sextract64(r2_h, 0, 32);
int64_t result0, result1;
uint32_t ovf0, ovf1;
uint32_t avf0, avf1;
ovf0 = ovf1 = 0;
result0 = r2_low + mul_res0 + 0x8000;
result1 = r2_high - mul_res1 + 0x8000;
avf0 = result0 * 2u;
avf0 = result0 ^ avf0;
avf1 = result1 * 2u;
avf1 = result1 ^ avf1;
if (result0 > INT32_MAX) {
ovf0 = (1 << 31);
result0 = INT32_MAX;
} else if (result0 < INT32_MIN) {
ovf0 = (1 << 31);
result0 = INT32_MIN;
}
if (result1 > INT32_MAX) {
ovf1 = (1 << 31);
result1 = INT32_MAX;
} else if (result1 < INT32_MIN) {
ovf1 = (1 << 31);
result1 = INT32_MIN;
}
env->PSW_USB_V = ovf0 | ovf1;
env->PSW_USB_SV |= env->PSW_USB_V;
env->PSW_USB_AV = avf0 | avf1;
env->PSW_USB_SAV |= env->PSW_USB_AV;
return (result1 & 0xffff0000ULL) | ((result0 >> 16) & 0xffffULL);
}
target_ulong helper_sub_suov(CPUTriCoreState *env, target_ulong r1,
target_ulong r2)
{
@ -1252,6 +1298,44 @@ uint32_t helper_subr_h(CPUTriCoreState *env, uint64_t r1, uint32_t r2_l,
return (result1 & 0xffff0000ULL) | ((result0 >> 16) & 0xffffULL);
}
uint32_t helper_subadr_h(CPUTriCoreState *env, uint64_t r1, uint32_t r2_l,
uint32_t r2_h)
{
int64_t mul_res0 = sextract64(r1, 0, 32);
int64_t mul_res1 = sextract64(r1, 32, 32);
int64_t r2_low = sextract64(r2_l, 0, 32);
int64_t r2_high = sextract64(r2_h, 0, 32);
int64_t result0, result1;
uint32_t ovf0, ovf1;
uint32_t avf0, avf1;
ovf0 = ovf1 = 0;
result0 = r2_low + mul_res0 + 0x8000;
result1 = r2_high - mul_res1 + 0x8000;
if ((result0 > INT32_MAX) || (result0 < INT32_MIN)) {
ovf0 = (1 << 31);
}
if ((result1 > INT32_MAX) || (result1 < INT32_MIN)) {
ovf1 = (1 << 31);
}
env->PSW_USB_V = ovf0 | ovf1;
env->PSW_USB_SV |= env->PSW_USB_V;
avf0 = result0 * 2u;
avf0 = result0 ^ avf0;
avf1 = result1 * 2u;
avf1 = result1 ^ avf1;
env->PSW_USB_AV = avf0 | avf1;
env->PSW_USB_SAV |= env->PSW_USB_AV;
return (result1 & 0xffff0000ULL) | ((result0 >> 16) & 0xffffULL);
}
uint32_t helper_msubr_q(CPUTriCoreState *env, uint32_t r1, uint32_t r2,
uint32_t r3, uint32_t n)
{

327
target-tricore/translate.c
View File

@ -2171,6 +2171,206 @@ gen_msubs64_q(TCGv rl, TCGv rh, TCGv arg1_low, TCGv arg1_high, TCGv arg2,
tcg_temp_free(temp);
}
static inline void
gen_msubad_h(TCGv ret_low, TCGv ret_high, TCGv r1_low, TCGv r1_high, TCGv r2,
TCGv r3, uint32_t n, uint32_t mode)
{
TCGv temp = tcg_const_i32(n);
TCGv temp2 = tcg_temp_new();
TCGv_i64 temp64 = tcg_temp_new_i64();
switch (mode) {
case MODE_LL:
GEN_HELPER_LL(mul_h, temp64, r2, r3, temp);
break;
case MODE_LU:
GEN_HELPER_LU(mul_h, temp64, r2, r3, temp);
break;
case MODE_UL:
GEN_HELPER_UL(mul_h, temp64, r2, r3, temp);
break;
case MODE_UU:
GEN_HELPER_UU(mul_h, temp64, r2, r3, temp);
break;
}
tcg_gen_extr_i64_i32(temp, temp2, temp64);
gen_addsub64_h(ret_low, ret_high, r1_low, r1_high, temp, temp2,
tcg_gen_add_tl, tcg_gen_sub_tl);
tcg_temp_free(temp);
tcg_temp_free(temp2);
tcg_temp_free_i64(temp64);
}
static inline void
gen_msubadm_h(TCGv ret_low, TCGv ret_high, TCGv r1_low, TCGv r1_high, TCGv r2,
TCGv r3, uint32_t n, uint32_t mode)
{
TCGv temp = tcg_const_i32(n);
TCGv_i64 temp64 = tcg_temp_new_i64();
TCGv_i64 temp64_2 = tcg_temp_new_i64();
TCGv_i64 temp64_3 = tcg_temp_new_i64();
switch (mode) {
case MODE_LL:
GEN_HELPER_LL(mul_h, temp64, r2, r3, temp);
break;
case MODE_LU:
GEN_HELPER_LU(mul_h, temp64, r2, r3, temp);
break;
case MODE_UL:
GEN_HELPER_UL(mul_h, temp64, r2, r3, temp);
break;
case MODE_UU:
GEN_HELPER_UU(mul_h, temp64, r2, r3, temp);
break;
}
tcg_gen_concat_i32_i64(temp64_3, r1_low, r1_high);
tcg_gen_sari_i64(temp64_2, temp64, 32); /* high */
tcg_gen_ext32s_i64(temp64, temp64); /* low */
tcg_gen_sub_i64(temp64, temp64_2, temp64);
tcg_gen_shli_i64(temp64, temp64, 16);
gen_sub64_d(temp64_2, temp64_3, temp64);
/* write back result */
tcg_gen_extr_i64_i32(ret_low, ret_high, temp64_2);
tcg_temp_free(temp);
tcg_temp_free_i64(temp64);
tcg_temp_free_i64(temp64_2);
tcg_temp_free_i64(temp64_3);
}
static inline void
gen_msubadr32_h(TCGv ret, TCGv r1, TCGv r2, TCGv r3, uint32_t n, uint32_t mode)
{
TCGv temp = tcg_const_i32(n);
TCGv temp2 = tcg_temp_new();
TCGv_i64 temp64 = tcg_temp_new_i64();
switch (mode) {
case MODE_LL:
GEN_HELPER_LL(mul_h, temp64, r2, r3, temp);
break;
case MODE_LU:
GEN_HELPER_LU(mul_h, temp64, r2, r3, temp);
break;
case MODE_UL:
GEN_HELPER_UL(mul_h, temp64, r2, r3, temp);
break;
case MODE_UU:
GEN_HELPER_UU(mul_h, temp64, r2, r3, temp);
break;
}
tcg_gen_andi_tl(temp2, r1, 0xffff0000);
tcg_gen_shli_tl(temp, r1, 16);
gen_helper_subadr_h(ret, cpu_env, temp64, temp, temp2);
tcg_temp_free(temp);
tcg_temp_free(temp2);
tcg_temp_free_i64(temp64);
}
static inline void
gen_msubads_h(TCGv ret_low, TCGv ret_high, TCGv r1_low, TCGv r1_high, TCGv r2,
TCGv r3, uint32_t n, uint32_t mode)
{
TCGv temp = tcg_const_i32(n);
TCGv temp2 = tcg_temp_new();
TCGv temp3 = tcg_temp_new();
TCGv_i64 temp64 = tcg_temp_new_i64();
switch (mode) {
case MODE_LL:
GEN_HELPER_LL(mul_h, temp64, r2, r3, temp);
break;
case MODE_LU:
GEN_HELPER_LU(mul_h, temp64, r2, r3, temp);
break;
case MODE_UL:
GEN_HELPER_UL(mul_h, temp64, r2, r3, temp);
break;
case MODE_UU:
GEN_HELPER_UU(mul_h, temp64, r2, r3, temp);
break;
}
tcg_gen_extr_i64_i32(temp, temp2, temp64);
gen_adds(ret_low, r1_low, temp);
tcg_gen_mov_tl(temp, cpu_PSW_V);
tcg_gen_mov_tl(temp3, cpu_PSW_AV);
gen_subs(ret_high, r1_high, temp2);
/* combine v bits */
tcg_gen_or_tl(cpu_PSW_V, cpu_PSW_V, temp);
/* combine av bits */
tcg_gen_or_tl(cpu_PSW_AV, cpu_PSW_AV, temp3);
tcg_temp_free(temp);
tcg_temp_free(temp2);
tcg_temp_free(temp3);
tcg_temp_free_i64(temp64);
}
static inline void
gen_msubadms_h(TCGv ret_low, TCGv ret_high, TCGv r1_low, TCGv r1_high, TCGv r2,
TCGv r3, uint32_t n, uint32_t mode)
{
TCGv temp = tcg_const_i32(n);
TCGv_i64 temp64 = tcg_temp_new_i64();
TCGv_i64 temp64_2 = tcg_temp_new_i64();
switch (mode) {
case MODE_LL:
GEN_HELPER_LL(mul_h, temp64, r2, r3, temp);
break;
case MODE_LU:
GEN_HELPER_LU(mul_h, temp64, r2, r3, temp);
break;
case MODE_UL:
GEN_HELPER_UL(mul_h, temp64, r2, r3, temp);
break;
case MODE_UU:
GEN_HELPER_UU(mul_h, temp64, r2, r3, temp);
break;
}
tcg_gen_sari_i64(temp64_2, temp64, 32); /* high */
tcg_gen_ext32s_i64(temp64, temp64); /* low */
tcg_gen_sub_i64(temp64, temp64_2, temp64);
tcg_gen_shli_i64(temp64, temp64, 16);
tcg_gen_concat_i32_i64(temp64_2, r1_low, r1_high);
gen_helper_sub64_ssov(temp64, cpu_env, temp64_2, temp64);
tcg_gen_extr_i64_i32(ret_low, ret_high, temp64);
tcg_temp_free(temp);
tcg_temp_free_i64(temp64);
tcg_temp_free_i64(temp64_2);
}
static inline void
gen_msubadr32s_h(TCGv ret, TCGv r1, TCGv r2, TCGv r3, uint32_t n, uint32_t mode)
{
TCGv temp = tcg_const_i32(n);
TCGv temp2 = tcg_temp_new();
TCGv_i64 temp64 = tcg_temp_new_i64();
switch (mode) {
case MODE_LL:
GEN_HELPER_LL(mul_h, temp64, r2, r3, temp);
break;
case MODE_LU:
GEN_HELPER_LU(mul_h, temp64, r2, r3, temp);
break;
case MODE_UL:
GEN_HELPER_UL(mul_h, temp64, r2, r3, temp);
break;
case MODE_UU:
GEN_HELPER_UU(mul_h, temp64, r2, r3, temp);
break;
}
tcg_gen_andi_tl(temp2, r1, 0xffff0000);
tcg_gen_shli_tl(temp, r1, 16);
gen_helper_subadr_h_ssov(ret, cpu_env, temp64, temp, temp2);
tcg_temp_free(temp);
tcg_temp_free(temp2);
tcg_temp_free_i64(temp64);
}
static inline void gen_abs(TCGv ret, TCGv r1)
{
TCGv temp = tcg_temp_new();
@ -7259,6 +7459,130 @@ static void decode_rrr1_msubq_h(CPUTriCoreState *env, DisasContext *ctx)
tcg_temp_free(temp2);
}
static void decode_rrr1_msubad_h(CPUTriCoreState *env, DisasContext *ctx)
{
uint32_t op2;
uint32_t r1, r2, r3, r4, n;
op2 = MASK_OP_RRR1_OP2(ctx->opcode);
r1 = MASK_OP_RRR1_S1(ctx->opcode);
r2 = MASK_OP_RRR1_S2(ctx->opcode);
r3 = MASK_OP_RRR1_S3(ctx->opcode);
r4 = MASK_OP_RRR1_D(ctx->opcode);
n = MASK_OP_RRR1_N(ctx->opcode);
switch (op2) {
case OPC2_32_RRR1_MSUBAD_H_32_LL:
gen_msubad_h(cpu_gpr_d[r4], cpu_gpr_d[r4+1], cpu_gpr_d[r3],
cpu_gpr_d[r3+1], cpu_gpr_d[r1], cpu_gpr_d[r2], n, MODE_LL);
break;
case OPC2_32_RRR1_MSUBAD_H_32_LU:
gen_msubad_h(cpu_gpr_d[r4], cpu_gpr_d[r4+1], cpu_gpr_d[r3],
cpu_gpr_d[r3+1], cpu_gpr_d[r1], cpu_gpr_d[r2], n, MODE_LU);
break;
case OPC2_32_RRR1_MSUBAD_H_32_UL:
gen_msubad_h(cpu_gpr_d[r4], cpu_gpr_d[r4+1], cpu_gpr_d[r3],
cpu_gpr_d[r3+1], cpu_gpr_d[r1], cpu_gpr_d[r2], n, MODE_UL);
break;
case OPC2_32_RRR1_MSUBAD_H_32_UU:
gen_msubad_h(cpu_gpr_d[r4], cpu_gpr_d[r4+1], cpu_gpr_d[r3],
cpu_gpr_d[r3+1], cpu_gpr_d[r1], cpu_gpr_d[r2], n, MODE_UU);
break;
case OPC2_32_RRR1_MSUBADS_H_32_LL:
gen_msubads_h(cpu_gpr_d[r4], cpu_gpr_d[r4+1], cpu_gpr_d[r3],
cpu_gpr_d[r3+1], cpu_gpr_d[r1], cpu_gpr_d[r2],
n, MODE_LL);
break;
case OPC2_32_RRR1_MSUBADS_H_32_LU:
gen_msubads_h(cpu_gpr_d[r4], cpu_gpr_d[r4+1], cpu_gpr_d[r3],
cpu_gpr_d[r3+1], cpu_gpr_d[r1], cpu_gpr_d[r2],
n, MODE_LU);
break;
case OPC2_32_RRR1_MSUBADS_H_32_UL:
gen_msubads_h(cpu_gpr_d[r4], cpu_gpr_d[r4+1], cpu_gpr_d[r3],
cpu_gpr_d[r3+1], cpu_gpr_d[r1], cpu_gpr_d[r2],
n, MODE_UL);
break;
case OPC2_32_RRR1_MSUBADS_H_32_UU:
gen_msubads_h(cpu_gpr_d[r4], cpu_gpr_d[r4+1], cpu_gpr_d[r3],
cpu_gpr_d[r3+1], cpu_gpr_d[r1], cpu_gpr_d[r2],
n, MODE_UU);
break;
case OPC2_32_RRR1_MSUBADM_H_64_LL:
gen_msubadm_h(cpu_gpr_d[r4], cpu_gpr_d[r4+1], cpu_gpr_d[r3],
cpu_gpr_d[r3+1], cpu_gpr_d[r1], cpu_gpr_d[r2],
n, MODE_LL);
break;
case OPC2_32_RRR1_MSUBADM_H_64_LU:
gen_msubadm_h(cpu_gpr_d[r4], cpu_gpr_d[r4+1], cpu_gpr_d[r3],
cpu_gpr_d[r3+1], cpu_gpr_d[r1], cpu_gpr_d[r2],
n, MODE_LU);
break;
case OPC2_32_RRR1_MSUBADM_H_64_UL:
gen_msubadm_h(cpu_gpr_d[r4], cpu_gpr_d[r4+1], cpu_gpr_d[r3],
cpu_gpr_d[r3+1], cpu_gpr_d[r1], cpu_gpr_d[r2],
n, MODE_UL);
break;
case OPC2_32_RRR1_MSUBADM_H_64_UU:
gen_msubadm_h(cpu_gpr_d[r4], cpu_gpr_d[r4+1], cpu_gpr_d[r3],
cpu_gpr_d[r3+1], cpu_gpr_d[r1], cpu_gpr_d[r2],
n, MODE_UU);
break;
case OPC2_32_RRR1_MSUBADMS_H_64_LL:
gen_msubadms_h(cpu_gpr_d[r4], cpu_gpr_d[r4+1], cpu_gpr_d[r3],
cpu_gpr_d[r3+1], cpu_gpr_d[r1], cpu_gpr_d[r2],
n, MODE_LL);
break;
case OPC2_32_RRR1_MSUBADMS_H_64_LU:
gen_msubadms_h(cpu_gpr_d[r4], cpu_gpr_d[r4+1], cpu_gpr_d[r3],
cpu_gpr_d[r3+1], cpu_gpr_d[r1], cpu_gpr_d[r2],
n, MODE_LU);
break;
case OPC2_32_RRR1_MSUBADMS_H_64_UL:
gen_msubadms_h(cpu_gpr_d[r4], cpu_gpr_d[r4+1], cpu_gpr_d[r3],
cpu_gpr_d[r3+1], cpu_gpr_d[r1], cpu_gpr_d[r2],
n, MODE_UL);
break;
case OPC2_32_RRR1_MSUBADMS_H_64_UU:
gen_msubadms_h(cpu_gpr_d[r4], cpu_gpr_d[r4+1], cpu_gpr_d[r3],
cpu_gpr_d[r3+1], cpu_gpr_d[r1], cpu_gpr_d[r2],
n, MODE_UU);
break;
case OPC2_32_RRR1_MSUBADR_H_16_LL:
gen_msubadr32_h(cpu_gpr_d[r4], cpu_gpr_d[r3], cpu_gpr_d[r1],
cpu_gpr_d[r2], n, MODE_LL);
break;
case OPC2_32_RRR1_MSUBADR_H_16_LU:
gen_msubadr32_h(cpu_gpr_d[r4], cpu_gpr_d[r3], cpu_gpr_d[r1],
cpu_gpr_d[r2], n, MODE_LU);
break;
case OPC2_32_RRR1_MSUBADR_H_16_UL:
gen_msubadr32_h(cpu_gpr_d[r4], cpu_gpr_d[r3], cpu_gpr_d[r1],
cpu_gpr_d[r2], n, MODE_UL);
break;
case OPC2_32_RRR1_MSUBADR_H_16_UU:
gen_msubadr32_h(cpu_gpr_d[r4], cpu_gpr_d[r3], cpu_gpr_d[r1],
cpu_gpr_d[r2], n, MODE_UU);
break;
case OPC2_32_RRR1_MSUBADRS_H_16_LL:
gen_msubadr32s_h(cpu_gpr_d[r4], cpu_gpr_d[r3], cpu_gpr_d[r1],
cpu_gpr_d[r2], n, MODE_LL);
break;
case OPC2_32_RRR1_MSUBADRS_H_16_LU:
gen_msubadr32s_h(cpu_gpr_d[r4], cpu_gpr_d[r3], cpu_gpr_d[r1],
cpu_gpr_d[r2], n, MODE_LU);
break;
case OPC2_32_RRR1_MSUBADRS_H_16_UL:
gen_msubadr32s_h(cpu_gpr_d[r4], cpu_gpr_d[r3], cpu_gpr_d[r1],
cpu_gpr_d[r2], n, MODE_UL);
break;
case OPC2_32_RRR1_MSUBADRS_H_16_UU:
gen_msubadr32s_h(cpu_gpr_d[r4], cpu_gpr_d[r3], cpu_gpr_d[r1],
cpu_gpr_d[r2], n, MODE_UU);
break;
}
}
static void decode_32Bit_opc(CPUTriCoreState *env, DisasContext *ctx)
{
int op1;
@ -7571,6 +7895,9 @@ static void decode_32Bit_opc(CPUTriCoreState *env, DisasContext *ctx)
case OPCM_32_RRR1_MSUB_Q:
decode_rrr1_msubq_h(env, ctx);
break;
case OPCM_32_RRR1_MSUBAD_H:
decode_rrr1_msubad_h(env, ctx);
break;
}
}

4
target-tricore/tricore-opcodes.h
View File

@ -523,7 +523,7 @@ enum {
OPCM_32_RRR1_MADDSU_H = 0xc3,
OPCM_32_RRR1_MSUB_H = 0xa3,
OPCM_32_RRR1_MSUB_Q = 0x63,
OPCM_32_RRR1_MSUBADS_H = 0xe3,
OPCM_32_RRR1_MSUBAD_H = 0xe3,
/* RRR2 Format */
OPCM_32_RRR2_MADD = 0x03,
OPCM_32_RRR2_MSUB = 0x23,
@ -1352,7 +1352,7 @@ enum {
OPC2_32_RRR1_MSUBADMS_H_64_LL = 0x3e,
OPC2_32_RRR1_MSUBADMS_H_64_LU = 0x3d,
OPC2_32_RRR1_MSUBADMS_H_64_UL = 0x3c,
OPC2_32_RRR1_MSUBADMS_H_16_UU = 0x3f,
OPC2_32_RRR1_MSUBADMS_H_64_UU = 0x3f,
OPC2_32_RRR1_MSUBADR_H_16_LL = 0x0e,
OPC2_32_RRR1_MSUBADR_H_16_LU = 0x0d,
OPC2_32_RRR1_MSUBADR_H_16_UL = 0x0c,