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target-mips: Add ASE DSP bit/manipulation instructions

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Add MIPS ASE DSP Bit/Manipulation instructions.

Signed-off-by: Jia Liu <proljc@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Jia Liu
2012-10-24 22:17:09 +08:00
committed by Aurelien Jarno
parent a22260ae38
commit 1cb6686cf9
3 changed files with 311 additions and 0 deletions
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55
target-mips/dsp_helper.c
View File

@@ -3112,6 +3112,61 @@ DM_OPERATE(dmsubu, mul_u32_u32, 0, 0);
#undef DM_OPERATE
#endif
/** DSP Bit/Manipulation Sub-class insns **/
target_ulong helper_bitrev(target_ulong rt)
{
int32_t temp;
uint32_t rd;
int i;
temp = rt & MIPSDSP_LO;
rd = 0;
for (i = 0; i < 16; i++) {
rd = (rd << 1) | (temp & 1);
temp = temp >> 1;
}
return (target_ulong)rd;
}
#define BIT_INSV(name, posfilter, sizefilter, ret_type) \
target_ulong helper_##name(CPUMIPSState *env, target_ulong rs, \
target_ulong rt) \
{ \
uint32_t pos, size, msb, lsb; \
target_ulong filter; \
target_ulong temp, temprs, temprt; \
target_ulong dspc; \
\
dspc = env->active_tc.DSPControl; \
\
pos = dspc & posfilter; \
size = (dspc >> 7) & sizefilter; \
\
msb = pos + size - 1; \
lsb = pos; \
\
if (lsb > msb || (msb > TARGET_LONG_BITS)) { \
return rt; \
} \
\
filter = ((int32_t)0x01 << size) - 1; \
filter = filter << pos; \
temprs = rs & filter; \
temprt = rt & ~filter; \
temp = temprs | temprt; \
\
return (target_long)(ret_type)temp; \
}
BIT_INSV(insv, 0x1F, 0x1F, int32_t);
#ifdef TARGET_MIPS64
BIT_INSV(dinsv, 0x7F, 0x3F, target_long);
#endif
#undef BIT_INSV
#undef MIPSDSP_LHI
#undef MIPSDSP_LLO
#undef MIPSDSP_HI

7
target-mips/helper.h
View File

@@ -617,4 +617,11 @@ DEF_HELPER_FLAGS_4(dmsub, 0, void, tl, tl, i32, env)
DEF_HELPER_FLAGS_4(dmsubu, 0, void, tl, tl, i32, env)
#endif
/* DSP Bit/Manipulation Sub-class insns */
DEF_HELPER_FLAGS_1(bitrev, TCG_CALL_NO_RWG_SE, tl, tl)
DEF_HELPER_FLAGS_3(insv, 0, tl, env, tl, tl)
#if defined(TARGET_MIPS64)
DEF_HELPER_FLAGS_3(dinsv, 0, tl, env, tl, tl);
#endif
#include "def-helper.h"

249
target-mips/translate.c
View File

@@ -342,6 +342,11 @@ enum {
OPC_DPA_W_PH_DSP = 0x30 | OPC_SPECIAL3,
#if defined(TARGET_MIPS64)
OPC_DPAQ_W_QH_DSP = 0x34 | OPC_SPECIAL3,
#endif
/* DSP Bit/Manipulation Sub-class */
OPC_INSV_DSP = 0x0C | OPC_SPECIAL3,
#if defined(TARGET_MIPS64)
OPC_DINSV_DSP = 0x0D | OPC_SPECIAL3,
#endif
};
@@ -450,6 +455,12 @@ enum {
OPC_PRECEU_PH_QBR = (0x1D << 6) | OPC_ABSQ_S_PH_DSP,
OPC_PRECEU_PH_QBLA = (0x1E << 6) | OPC_ABSQ_S_PH_DSP,
OPC_PRECEU_PH_QBRA = (0x1F << 6) | OPC_ABSQ_S_PH_DSP,
/* DSP Bit/Manipulation Sub-class */
OPC_BITREV = (0x1B << 6) | OPC_ABSQ_S_PH_DSP,
OPC_REPL_QB = (0x02 << 6) | OPC_ABSQ_S_PH_DSP,
OPC_REPLV_QB = (0x03 << 6) | OPC_ABSQ_S_PH_DSP,
OPC_REPL_PH = (0x0A << 6) | OPC_ABSQ_S_PH_DSP,
OPC_REPLV_PH = (0x0B << 6) | OPC_ABSQ_S_PH_DSP,
};
#define MASK_CMPU_EQ_QB(op) (MASK_SPECIAL3(op) | (op & (0x1F << 6)))
@@ -518,6 +529,12 @@ enum {
OPC_MULSA_W_PH = (0x02 << 6) | OPC_DPA_W_PH_DSP,
};
#define MASK_INSV(op) (MASK_SPECIAL3(op) | (op & (0x1F << 6)))
enum {
/* DSP Bit/Manipulation Sub-class */
OPC_INSV = (0x00 << 6) | OPC_INSV_DSP,
};
#if defined(TARGET_MIPS64)
#define MASK_ABSQ_S_QH(op) (MASK_SPECIAL3(op) | (op & (0x1F << 6)))
enum {
@@ -539,6 +556,13 @@ enum {
OPC_ABSQ_S_OB = (0x01 << 6) | OPC_ABSQ_S_QH_DSP,
OPC_ABSQ_S_PW = (0x11 << 6) | OPC_ABSQ_S_QH_DSP,
OPC_ABSQ_S_QH = (0x09 << 6) | OPC_ABSQ_S_QH_DSP,
/* DSP Bit/Manipulation Sub-class */
OPC_REPL_OB = (0x02 << 6) | OPC_ABSQ_S_QH_DSP,
OPC_REPL_PW = (0x12 << 6) | OPC_ABSQ_S_QH_DSP,
OPC_REPL_QH = (0x0A << 6) | OPC_ABSQ_S_QH_DSP,
OPC_REPLV_OB = (0x03 << 6) | OPC_ABSQ_S_QH_DSP,
OPC_REPLV_PW = (0x13 << 6) | OPC_ABSQ_S_QH_DSP,
OPC_REPLV_QH = (0x0B << 6) | OPC_ABSQ_S_QH_DSP,
};
#endif
@@ -591,6 +615,14 @@ enum {
};
#endif
#if defined(TARGET_MIPS64)
#define MASK_DINSV(op) (MASK_SPECIAL3(op) | (op & (0x1F << 6)))
enum {
/* DSP Bit/Manipulation Sub-class */
OPC_DINSV = (0x00 << 6) | OPC_DINSV_DSP,
};
#endif
#if defined(TARGET_MIPS64)
#define MASK_DPAQ_W_QH(op) (MASK_SPECIAL3(op) | (op & (0x1F << 6)))
enum {
@@ -13604,6 +13636,149 @@ static void gen_mipsdsp_multiply(DisasContext *ctx, uint32_t op1, uint32_t op2,
}
static void gen_mipsdsp_bitinsn(CPUMIPSState *env, DisasContext *ctx,
uint32_t op1, uint32_t op2,
int ret, int val)
{
const char *opn = "mipsdsp Bit/ Manipulation";
int16_t imm;
TCGv t0;
TCGv val_t;
if (ret == 0) {
/* Treat as NOP. */
MIPS_DEBUG("NOP");
return;
}
t0 = tcg_temp_new();
val_t = tcg_temp_new();
gen_load_gpr(val_t, val);
switch (op1) {
case OPC_ABSQ_S_PH_DSP:
switch (op2) {
case OPC_BITREV:
check_dsp(ctx);
gen_helper_bitrev(cpu_gpr[ret], val_t);
break;
case OPC_REPL_QB:
check_dsp(ctx);
{
target_long result;
imm = (ctx->opcode >> 16) & 0xFF;
result = (uint32_t)imm << 24 |
(uint32_t)imm << 16 |
(uint32_t)imm << 8 |
(uint32_t)imm;
result = (int32_t)result;
tcg_gen_movi_tl(cpu_gpr[ret], result);
}
break;
case OPC_REPLV_QB:
check_dsp(ctx);
tcg_gen_ext8u_tl(cpu_gpr[ret], val_t);
tcg_gen_shli_tl(t0, cpu_gpr[ret], 8);
tcg_gen_or_tl(cpu_gpr[ret], cpu_gpr[ret], t0);
tcg_gen_shli_tl(t0, cpu_gpr[ret], 16);
tcg_gen_or_tl(cpu_gpr[ret], cpu_gpr[ret], t0);
tcg_gen_ext32s_tl(cpu_gpr[ret], cpu_gpr[ret]);
break;
case OPC_REPL_PH:
check_dsp(ctx);
{
imm = (ctx->opcode >> 16) & 0x03FF;
tcg_gen_movi_tl(cpu_gpr[ret], \
(target_long)((int32_t)imm << 16 | \
(uint32_t)(uint16_t)imm));
}
break;
case OPC_REPLV_PH:
check_dsp(ctx);
tcg_gen_ext16u_tl(cpu_gpr[ret], val_t);
tcg_gen_shli_tl(t0, cpu_gpr[ret], 16);
tcg_gen_or_tl(cpu_gpr[ret], cpu_gpr[ret], t0);
tcg_gen_ext32s_tl(cpu_gpr[ret], cpu_gpr[ret]);
break;
}
break;
#ifdef TARGET_MIPS64
case OPC_ABSQ_S_QH_DSP:
switch (op2) {
case OPC_REPL_OB:
check_dsp(ctx);
{
target_long temp;
imm = (ctx->opcode >> 16) & 0xFF;
temp = ((uint64_t)imm << 8) | (uint64_t)imm;
temp = (temp << 16) | temp;
temp = (temp << 32) | temp;
tcg_gen_movi_tl(cpu_gpr[ret], temp);
break;
}
case OPC_REPL_PW:
check_dsp(ctx);
{
target_long temp;
imm = (ctx->opcode >> 16) & 0x03FF;
imm = (int16_t)(imm << 6) >> 6;
temp = ((target_long)imm << 32) \
| ((target_long)imm & 0xFFFFFFFF);
tcg_gen_movi_tl(cpu_gpr[ret], temp);
break;
}
case OPC_REPL_QH:
check_dsp(ctx);
{
target_long temp;
imm = (ctx->opcode >> 16) & 0x03FF;
imm = (int16_t)(imm << 6) >> 6;
temp = ((uint64_t)(uint16_t)imm << 48) |
((uint64_t)(uint16_t)imm << 32) |
((uint64_t)(uint16_t)imm << 16) |
(uint64_t)(uint16_t)imm;
tcg_gen_movi_tl(cpu_gpr[ret], temp);
break;
}
case OPC_REPLV_OB:
check_dsp(ctx);
tcg_gen_ext8u_tl(cpu_gpr[ret], val_t);
tcg_gen_shli_tl(t0, cpu_gpr[ret], 8);
tcg_gen_or_tl(cpu_gpr[ret], cpu_gpr[ret], t0);
tcg_gen_shli_tl(t0, cpu_gpr[ret], 16);
tcg_gen_or_tl(cpu_gpr[ret], cpu_gpr[ret], t0);
tcg_gen_shli_tl(t0, cpu_gpr[ret], 32);
tcg_gen_or_tl(cpu_gpr[ret], cpu_gpr[ret], t0);
break;
case OPC_REPLV_PW:
check_dsp(ctx);
tcg_gen_ext32u_i64(cpu_gpr[ret], val_t);
tcg_gen_shli_tl(t0, cpu_gpr[ret], 32);
tcg_gen_or_tl(cpu_gpr[ret], cpu_gpr[ret], t0);
break;
case OPC_REPLV_QH:
check_dsp(ctx);
tcg_gen_ext16u_tl(cpu_gpr[ret], val_t);
tcg_gen_shli_tl(t0, cpu_gpr[ret], 16);
tcg_gen_or_tl(cpu_gpr[ret], cpu_gpr[ret], t0);
tcg_gen_shli_tl(t0, cpu_gpr[ret], 32);
tcg_gen_or_tl(cpu_gpr[ret], cpu_gpr[ret], t0);
break;
}
break;
#endif
}
tcg_temp_free(t0);
tcg_temp_free(val_t);
(void)opn; /* avoid a compiler warning */
MIPS_DEBUG("%s", opn);
}
/* End MIPSDSP functions. */
static void decode_opc (CPUMIPSState *env, DisasContext *ctx, int *is_branch)
@@ -14030,6 +14205,13 @@ static void decode_opc (CPUMIPSState *env, DisasContext *ctx, int *is_branch)
case OPC_PRECEU_PH_QBRA:
gen_mipsdsp_arith(ctx, op1, op2, rd, rs, rt);
break;
case OPC_BITREV:
case OPC_REPL_QB:
case OPC_REPLV_QB:
case OPC_REPL_PH:
case OPC_REPLV_PH:
gen_mipsdsp_bitinsn(env, ctx, op1, op2, rd, rt);
break;
default:
MIPS_INVAL("MASK ABSQ_S.PH");
generate_exception(ctx, EXCP_RI);
@@ -14130,6 +14312,37 @@ static void decode_opc (CPUMIPSState *env, DisasContext *ctx, int *is_branch)
break;
}
break;
case OPC_INSV_DSP:
op2 = MASK_INSV(ctx->opcode);
switch (op2) {
case OPC_INSV:
check_dsp(ctx);
{
TCGv t0, t1;
if (rt == 0) {
MIPS_DEBUG("NOP");
break;
}
t0 = tcg_temp_new();
t1 = tcg_temp_new();
gen_load_gpr(t0, rt);
gen_load_gpr(t1, rs);
gen_helper_insv(cpu_gpr[rt], cpu_env, t1, t0);
tcg_temp_free(t0);
tcg_temp_free(t1);
break;
}
default: /* Invalid */
MIPS_INVAL("MASK INSV");
generate_exception(ctx, EXCP_RI);
break;
}
break;
#if defined(TARGET_MIPS64)
case OPC_DEXTM ... OPC_DEXT:
case OPC_DINSM ... OPC_DINS:
@@ -14171,6 +14384,14 @@ static void decode_opc (CPUMIPSState *env, DisasContext *ctx, int *is_branch)
case OPC_ABSQ_S_QH:
gen_mipsdsp_arith(ctx, op1, op2, rd, rs, rt);
break;
case OPC_REPL_OB:
case OPC_REPL_PW:
case OPC_REPL_QH:
case OPC_REPLV_OB:
case OPC_REPLV_PW:
case OPC_REPLV_QH:
gen_mipsdsp_bitinsn(env, ctx, op1, op2, rd, rt);
break;
default: /* Invalid */
MIPS_INVAL("MASK ABSQ_S.QH");
generate_exception(ctx, EXCP_RI);
@@ -14277,6 +14498,34 @@ static void decode_opc (CPUMIPSState *env, DisasContext *ctx, int *is_branch)
break;
}
break;
case OPC_DINSV_DSP:
op2 = MASK_INSV(ctx->opcode);
switch (op2) {
case OPC_DINSV:
{
TCGv t0, t1;
if (rt == 0) {
MIPS_DEBUG("NOP");
break;
}
check_dsp(ctx);
t0 = tcg_temp_new();
t1 = tcg_temp_new();
gen_load_gpr(t0, rt);
gen_load_gpr(t1, rs);
gen_helper_dinsv(cpu_gpr[rt], cpu_env, t1, t0);
break;
}
default: /* Invalid */
MIPS_INVAL("MASK DINSV");
generate_exception(ctx, EXCP_RI);
break;
}
break;
case OPC_SHLL_OB_DSP:
gen_mipsdsp_shift(ctx, op1, rd, rs, rt);
break;