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[Qemu-devel] [PULL 13/13] target-tricore: Add instructions of RR1 opcode
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From: |
Bastian Koppelmann |
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Subject: |
[Qemu-devel] [PULL 13/13] target-tricore: Add instructions of RR1 opcode format, that have 0xb3 as first opcode |
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Date: |
Sun, 21 Dec 2014 18:47:49 +0000 |
Add instructions of RR1 opcode format, that have 0xb3 as first opcode.
Add helper functions mulh, mulmh and mulrh, that compute multiplication,
with multiprecision (mulmh) or rounding (mulrh) of 4 halfwords, being either
low or high parts
of two 32 bit regs.
Signed-off-by: Bastian Koppelmann <address@hidden>
Reviewed-by: Richard Henderson <address@hidden>
---
target-tricore/helper.h | 4 +
target-tricore/op_helper.c | 72 +++++++++++++++++
target-tricore/translate.c | 197 +++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 273 insertions(+)
diff --git a/target-tricore/helper.h b/target-tricore/helper.h
index 0294512..068dc7b 100644
--- a/target-tricore/helper.h
+++ b/target-tricore/helper.h
@@ -87,6 +87,10 @@ DEF_HELPER_3(dvinit_b_13, i64, env, i32, i32)
DEF_HELPER_3(dvinit_b_131, i64, env, i32, i32)
DEF_HELPER_3(dvinit_h_13, i64, env, i32, i32)
DEF_HELPER_3(dvinit_h_131, i64, env, i32, i32)
+/* mulh */
+DEF_HELPER_FLAGS_5(mul_h, TCG_CALL_NO_RWG_SE, i64, i32, i32, i32, i32, i32)
+DEF_HELPER_FLAGS_5(mulm_h, TCG_CALL_NO_RWG_SE, i64, i32, i32, i32, i32, i32)
+DEF_HELPER_FLAGS_5(mulr_h, TCG_CALL_NO_RWG_SE, i32, i32, i32, i32, i32, i32)
/* CSA */
DEF_HELPER_2(call, void, env, i32)
DEF_HELPER_1(ret, void, env)
diff --git a/target-tricore/op_helper.c b/target-tricore/op_helper.c
index 63d2d56..13e2729 100644
--- a/target-tricore/op_helper.c
+++ b/target-tricore/op_helper.c
@@ -1228,6 +1228,78 @@ uint64_t helper_dvinit_h_131(CPUTriCoreState *env,
uint32_t r1, uint32_t r2)
return ret;
}
+uint64_t helper_mul_h(uint32_t arg00, uint32_t arg01,
+ uint32_t arg10, uint32_t arg11, uint32_t n)
+{
+ uint64_t ret;
+ uint32_t result0, result1;
+
+ int32_t sc1 = ((arg00 & 0xffff) == 0x8000) &&
+ ((arg10 & 0xffff) == 0x8000) && (n == 1);
+ int32_t sc0 = ((arg01 & 0xffff) == 0x8000) &&
+ ((arg11 & 0xffff) == 0x8000) && (n == 1);
+ if (sc1) {
+ result1 = 0x7fffffff;
+ } else {
+ result1 = (((uint32_t)(arg00 * arg10)) << n);
+ }
+ if (sc0) {
+ result0 = 0x7fffffff;
+ } else {
+ result0 = (((uint32_t)(arg01 * arg11)) << n);
+ }
+ ret = (((uint64_t)result1 << 32)) | result0;
+ return ret;
+}
+
+uint64_t helper_mulm_h(uint32_t arg00, uint32_t arg01,
+ uint32_t arg10, uint32_t arg11, uint32_t n)
+{
+ uint64_t ret;
+ int64_t result0, result1;
+
+ int32_t sc1 = ((arg00 & 0xffff) == 0x8000) &&
+ ((arg10 & 0xffff) == 0x8000) && (n == 1);
+ int32_t sc0 = ((arg01 & 0xffff) == 0x8000) &&
+ ((arg11 & 0xffff) == 0x8000) && (n == 1);
+
+ if (sc1) {
+ result1 = 0x7fffffff;
+ } else {
+ result1 = (((int32_t)arg00 * (int32_t)arg10) << n);
+ }
+ if (sc0) {
+ result0 = 0x7fffffff;
+ } else {
+ result0 = (((int32_t)arg01 * (int32_t)arg11) << n);
+ }
+ ret = (result1 + result0);
+ ret = ret << 16;
+ return ret;
+}
+uint32_t helper_mulr_h(uint32_t arg00, uint32_t arg01,
+ uint32_t arg10, uint32_t arg11, uint32_t n)
+{
+ uint32_t result0, result1;
+
+ int32_t sc1 = ((arg00 & 0xffff) == 0x8000) &&
+ ((arg10 & 0xffff) == 0x8000) && (n == 1);
+ int32_t sc0 = ((arg01 & 0xffff) == 0x8000) &&
+ ((arg11 & 0xffff) == 0x8000) && (n == 1);
+
+ if (sc1) {
+ result1 = 0x7fffffff;
+ } else {
+ result1 = ((arg00 * arg10) << n) + 0x8000;
+ }
+ if (sc0) {
+ result0 = 0x7fffffff;
+ } else {
+ result0 = ((arg01 * arg11) << n) + 0x8000;
+ }
+ return (result1 & 0xffff0000) | (result0 >> 16);
+}
+
/* context save area (CSA) related helpers */
static int cdc_increment(target_ulong *psw)
diff --git a/target-tricore/translate.c b/target-tricore/translate.c
index bd35c29..dbcf87e 100644
--- a/target-tricore/translate.c
+++ b/target-tricore/translate.c
@@ -124,6 +124,64 @@ void tricore_cpu_dump_state(CPUState *cs, FILE *f,
tcg_temp_free_i32(helper_tmp); \
} while (0)
+#define GEN_HELPER_LL(name, ret, arg0, arg1, n) do { \
+ TCGv arg00 = tcg_temp_new(); \
+ TCGv arg01 = tcg_temp_new(); \
+ TCGv arg11 = tcg_temp_new(); \
+ tcg_gen_sari_tl(arg00, arg0, 16); \
+ tcg_gen_ext16s_tl(arg01, arg0); \
+ tcg_gen_ext16s_tl(arg11, arg1); \
+ gen_helper_##name(ret, arg00, arg01, arg11, arg11, n); \
+ tcg_temp_free(arg00); \
+ tcg_temp_free(arg01); \
+ tcg_temp_free(arg11); \
+} while (0)
+
+#define GEN_HELPER_LU(name, ret, arg0, arg1, n) do { \
+ TCGv arg00 = tcg_temp_new(); \
+ TCGv arg01 = tcg_temp_new(); \
+ TCGv arg10 = tcg_temp_new(); \
+ TCGv arg11 = tcg_temp_new(); \
+ tcg_gen_sari_tl(arg00, arg0, 16); \
+ tcg_gen_ext16s_tl(arg01, arg0); \
+ tcg_gen_sari_tl(arg11, arg1, 16); \
+ tcg_gen_ext16s_tl(arg10, arg1); \
+ gen_helper_##name(ret, arg00, arg01, arg10, arg11, n); \
+ tcg_temp_free(arg00); \
+ tcg_temp_free(arg01); \
+ tcg_temp_free(arg10); \
+ tcg_temp_free(arg11); \
+} while (0)
+
+#define GEN_HELPER_UL(name, ret, arg0, arg1, n) do { \
+ TCGv arg00 = tcg_temp_new(); \
+ TCGv arg01 = tcg_temp_new(); \
+ TCGv arg10 = tcg_temp_new(); \
+ TCGv arg11 = tcg_temp_new(); \
+ tcg_gen_sari_tl(arg00, arg0, 16); \
+ tcg_gen_ext16s_tl(arg01, arg0); \
+ tcg_gen_sari_tl(arg10, arg1, 16); \
+ tcg_gen_ext16s_tl(arg11, arg1); \
+ gen_helper_##name(ret, arg00, arg01, arg10, arg11, n); \
+ tcg_temp_free(arg00); \
+ tcg_temp_free(arg01); \
+ tcg_temp_free(arg10); \
+ tcg_temp_free(arg11); \
+} while (0)
+
+#define GEN_HELPER_UU(name, ret, arg0, arg1, n) do { \
+ TCGv arg00 = tcg_temp_new(); \
+ TCGv arg01 = tcg_temp_new(); \
+ TCGv arg11 = tcg_temp_new(); \
+ tcg_gen_sari_tl(arg01, arg0, 16); \
+ tcg_gen_ext16s_tl(arg00, arg0); \
+ tcg_gen_sari_tl(arg11, arg1, 16); \
+ gen_helper_##name(ret, arg00, arg01, arg11, arg11, n); \
+ tcg_temp_free(arg00); \
+ tcg_temp_free(arg01); \
+ tcg_temp_free(arg11); \
+} while (0)
+
#define EA_ABS_FORMAT(con) (((con & 0x3C000) << 14) + (con & 0x3FFF))
#define EA_B_ABSOLUT(con) (((offset & 0xf00000) << 8) | \
((offset & 0x0fffff) << 1))
@@ -1406,6 +1464,36 @@ gen_dvinit_h(CPUTriCoreState *env, TCGv rl, TCGv rh,
TCGv r1, TCGv r2)
tcg_temp_free_i64(ret);
}
+static void gen_calc_usb_mul_h(TCGv arg_low, TCGv arg_high)
+{
+ TCGv temp = tcg_temp_new();
+ /* calc AV bit */
+ tcg_gen_add_tl(temp, arg_low, arg_low);
+ tcg_gen_xor_tl(temp, temp, arg_low);
+ tcg_gen_add_tl(cpu_PSW_AV, arg_high, arg_high);
+ tcg_gen_xor_tl(cpu_PSW_AV, cpu_PSW_AV, arg_high);
+ tcg_gen_or_tl(cpu_PSW_AV, cpu_PSW_AV, temp);
+ /* calc SAV bit */
+ tcg_gen_or_tl(cpu_PSW_SAV, cpu_PSW_SAV, cpu_PSW_AV);
+ tcg_gen_movi_tl(cpu_PSW_V, 0);
+ tcg_temp_free(temp);
+}
+
+static void gen_calc_usb_mulr_h(TCGv arg)
+{
+ TCGv temp = tcg_temp_new();
+ /* calc AV bit */
+ tcg_gen_add_tl(temp, arg, arg);
+ tcg_gen_xor_tl(temp, temp, arg);
+ tcg_gen_shli_tl(cpu_PSW_AV, temp, 16);
+ tcg_gen_or_tl(cpu_PSW_AV, cpu_PSW_AV, temp);
+ /* calc SAV bit */
+ tcg_gen_or_tl(cpu_PSW_SAV, cpu_PSW_SAV, cpu_PSW_AV);
+ /* clear V bit */
+ tcg_gen_movi_tl(cpu_PSW_V, 0);
+ tcg_temp_free(temp);
+}
+
/* helpers for generating program flow micro-ops */
static inline void gen_save_pc(target_ulong pc)
@@ -4585,6 +4673,111 @@ static void decode_rr_divide(CPUTriCoreState *env,
DisasContext *ctx)
}
}
+/* RR1 Format */
+static void decode_rr1_mul(CPUTriCoreState *env, DisasContext *ctx)
+{
+ uint32_t op2;
+
+ int r1, r2, r3;
+ TCGv n;
+ TCGv_i64 temp64;
+
+ r1 = MASK_OP_RR1_S1(ctx->opcode);
+ r2 = MASK_OP_RR1_S2(ctx->opcode);
+ r3 = MASK_OP_RR1_D(ctx->opcode);
+ n = tcg_const_i32(MASK_OP_RR1_N(ctx->opcode));
+ op2 = MASK_OP_RR1_OP2(ctx->opcode);
+
+ switch (op2) {
+ case OPC2_32_RR1_MUL_H_32_LL:
+ temp64 = tcg_temp_new_i64();
+ GEN_HELPER_LL(mul_h, temp64, cpu_gpr_d[r1], cpu_gpr_d[r2], n);
+ tcg_gen_extr_i64_i32(cpu_gpr_d[r3], cpu_gpr_d[r3+1], temp64);
+ gen_calc_usb_mul_h(cpu_gpr_d[r3], cpu_gpr_d[r3+1]);
+ tcg_temp_free_i64(temp64);
+ break;
+ case OPC2_32_RR1_MUL_H_32_LU:
+ temp64 = tcg_temp_new_i64();
+ GEN_HELPER_LU(mul_h, temp64, cpu_gpr_d[r1], cpu_gpr_d[r2], n);
+ tcg_gen_extr_i64_i32(cpu_gpr_d[r3], cpu_gpr_d[r3+1], temp64);
+ gen_calc_usb_mul_h(cpu_gpr_d[r3], cpu_gpr_d[r3+1]);
+ tcg_temp_free_i64(temp64);
+ break;
+ case OPC2_32_RR1_MUL_H_32_UL:
+ temp64 = tcg_temp_new_i64();
+ GEN_HELPER_UL(mul_h, temp64, cpu_gpr_d[r1], cpu_gpr_d[r2], n);
+ tcg_gen_extr_i64_i32(cpu_gpr_d[r3], cpu_gpr_d[r3+1], temp64);
+ gen_calc_usb_mul_h(cpu_gpr_d[r3], cpu_gpr_d[r3+1]);
+ tcg_temp_free_i64(temp64);
+ break;
+ case OPC2_32_RR1_MUL_H_32_UU:
+ temp64 = tcg_temp_new_i64();
+ GEN_HELPER_UU(mul_h, temp64, cpu_gpr_d[r1], cpu_gpr_d[r2], n);
+ tcg_gen_extr_i64_i32(cpu_gpr_d[r3], cpu_gpr_d[r3+1], temp64);
+ gen_calc_usb_mul_h(cpu_gpr_d[r3], cpu_gpr_d[r3+1]);
+ tcg_temp_free_i64(temp64);
+ break;
+ case OPC2_32_RR1_MULM_H_64_LL:
+ temp64 = tcg_temp_new_i64();
+ GEN_HELPER_LL(mulm_h, temp64, cpu_gpr_d[r1], cpu_gpr_d[r2], n);
+ tcg_gen_extr_i64_i32(cpu_gpr_d[r3], cpu_gpr_d[r3+1], temp64);
+ /* reset V bit */
+ tcg_gen_movi_tl(cpu_PSW_V, 0);
+ /* reset AV bit */
+ tcg_gen_mov_tl(cpu_PSW_AV, cpu_PSW_V);
+ tcg_temp_free_i64(temp64);
+ break;
+ case OPC2_32_RR1_MULM_H_64_LU:
+ temp64 = tcg_temp_new_i64();
+ GEN_HELPER_LU(mulm_h, temp64, cpu_gpr_d[r1], cpu_gpr_d[r2], n);
+ tcg_gen_extr_i64_i32(cpu_gpr_d[r3], cpu_gpr_d[r3+1], temp64);
+ /* reset V bit */
+ tcg_gen_movi_tl(cpu_PSW_V, 0);
+ /* reset AV bit */
+ tcg_gen_mov_tl(cpu_PSW_AV, cpu_PSW_V);
+ tcg_temp_free_i64(temp64);
+ break;
+ case OPC2_32_RR1_MULM_H_64_UL:
+ temp64 = tcg_temp_new_i64();
+ GEN_HELPER_UL(mulm_h, temp64, cpu_gpr_d[r1], cpu_gpr_d[r2], n);
+ tcg_gen_extr_i64_i32(cpu_gpr_d[r3], cpu_gpr_d[r3+1], temp64);
+ /* reset V bit */
+ tcg_gen_movi_tl(cpu_PSW_V, 0);
+ /* reset AV bit */
+ tcg_gen_mov_tl(cpu_PSW_AV, cpu_PSW_V);
+ tcg_temp_free_i64(temp64);
+ break;
+ case OPC2_32_RR1_MULM_H_64_UU:
+ temp64 = tcg_temp_new_i64();
+ GEN_HELPER_UU(mulm_h, temp64, cpu_gpr_d[r1], cpu_gpr_d[r2], n);
+ tcg_gen_extr_i64_i32(cpu_gpr_d[r3], cpu_gpr_d[r3+1], temp64);
+ /* reset V bit */
+ tcg_gen_movi_tl(cpu_PSW_V, 0);
+ /* reset AV bit */
+ tcg_gen_mov_tl(cpu_PSW_AV, cpu_PSW_V);
+ tcg_temp_free_i64(temp64);
+
+ break;
+ case OPC2_32_RR1_MULR_H_16_LL:
+ GEN_HELPER_LL(mulr_h, cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2], n);
+ gen_calc_usb_mulr_h(cpu_gpr_d[r3]);
+ break;
+ case OPC2_32_RR1_MULR_H_16_LU:
+ GEN_HELPER_LU(mulr_h, cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2], n);
+ gen_calc_usb_mulr_h(cpu_gpr_d[r3]);
+ break;
+ case OPC2_32_RR1_MULR_H_16_UL:
+ GEN_HELPER_UL(mulr_h, cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2], n);
+ gen_calc_usb_mulr_h(cpu_gpr_d[r3]);
+ break;
+ case OPC2_32_RR1_MULR_H_16_UU:
+ GEN_HELPER_UU(mulr_h, cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2], n);
+ gen_calc_usb_mulr_h(cpu_gpr_d[r3]);
+ break;
+ }
+ tcg_temp_free(n);
+}
+
static void decode_32Bit_opc(CPUTriCoreState *env, DisasContext *ctx)
{
int op1;
@@ -4838,6 +5031,10 @@ static void decode_32Bit_opc(CPUTriCoreState *env,
DisasContext *ctx)
case OPCM_32_RR_DIVIDE:
decode_rr_divide(env, ctx);
break;
+/* RR1 Format */
+ case OPCM_32_RR1_MUL:
+ decode_rr1_mul(env, ctx);
+ break;
}
}
--
2.2.1
- [Qemu-devel] [PULL 06/13] target-tricore: Change SSOV/SUOV makro name to SSOV32/SUOV32, (continued)
- [Qemu-devel] [PULL 06/13] target-tricore: Change SSOV/SUOV makro name to SSOV32/SUOV32, Bastian Koppelmann, 2014/12/21
- [Qemu-devel] [PULL 04/13] target-tricore: pretty-print register dump and show more status registers, Bastian Koppelmann, 2014/12/21
- [Qemu-devel] [PULL 11/13] target-tricore: Add missing 1.6 insn of BOL opcode format, Bastian Koppelmann, 2014/12/21
- [Qemu-devel] [PULL 07/13] target-tricore: Add instructions of RR opcode format, that have 0xb as the first opcode, Bastian Koppelmann, 2014/12/21
- [Qemu-devel] [PULL 05/13] target-tricore: Fix mask handling JNZ.T being 7 bit long, Bastian Koppelmann, 2014/12/21
- [Qemu-devel] [PULL 10/13] target-tricore: Add instructions of RR opcode format, that have 0x4b as the first opcode, Bastian Koppelmann, 2014/12/21
- [Qemu-devel] [PULL 12/13] target-tricore: Fix MFCR/MTCR insn and B format offset., Bastian Koppelmann, 2014/12/21
- [Qemu-devel] [PULL 03/13] target-tricore: add missing 64-bit MOV in RLC format, Bastian Koppelmann, 2014/12/21
- [Qemu-devel] [PULL 08/13] target-tricore: Add instructions of RR opcode format, that have 0xf as the first opcode, Bastian Koppelmann, 2014/12/21
- [Qemu-devel] [PULL 09/13] target-tricore: Add instructions of RR opcode format, that have 0x1 as the first opcode, Bastian Koppelmann, 2014/12/21
- [Qemu-devel] [PULL 13/13] target-tricore: Add instructions of RR1 opcode format, that have 0xb3 as first opcode,
Bastian Koppelmann <=
- Re: [Qemu-devel] [PULL 00/13] tricore patches, Peter Maydell, 2014/12/22