From: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
To: qemu-devel@nongnu.org
Cc: peter.maydell@linaro.org, rth@twiddle.net
Subject: [Qemu-devel] [PATCH v2 4/5] target-tricore: Add instructions of BIT opcode format
Date: Wed, 1 Oct 2014 10:35:35 +0100 [thread overview]
Message-ID: <1412156136-28899-5-git-send-email-kbastian@mail.uni-paderborn.de> (raw)
In-Reply-To: <1412156136-28899-1-git-send-email-kbastian@mail.uni-paderborn.de>
Add instructions of BIT opcode format.
Add microcode generator functions gen_bit_1/2op to do 1/2 bit operations on the last bit.
Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
---
v1 -> v2:
- gen_bit_2op: Now uses deposit and two shifts.
- gen_bit_1op: Now masks output instead of inputs and eliminates special cases for NOR.
- Remove depositing into r3 from decode_bit_andacc/orand, since gen_bit_2op does it.
- decode_bit_insert: Now uses shift + deposit.
- BIT_AND_NOR_T, BIT_XNOR_T and BIT_OR_NOR_T now use conditionalization.
- BIT_XNOR_T and BIT_SH_XNOR_T now use tcg_gen_eqv_tl.
target-tricore/translate.c | 312 +++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 312 insertions(+)
diff --git a/target-tricore/translate.c b/target-tricore/translate.c
index 830bcd0..0cede7e 100644
--- a/target-tricore/translate.c
+++ b/target-tricore/translate.c
@@ -425,6 +425,49 @@ static inline void gen_subs(TCGv ret, TCGv r1, TCGv r2)
gen_helper_sub_ssov(ret, cpu_env, r1, r2);
}
+static inline void gen_bit_2op(TCGv ret, TCGv r1, TCGv r2,
+ int pos1, int pos2,
+ void(*op1)(TCGv, TCGv, TCGv),
+ void(*op2)(TCGv, TCGv, TCGv))
+{
+ TCGv temp1, temp2;
+
+ temp1 = tcg_temp_new();
+ temp2 = tcg_temp_new();
+
+ tcg_gen_shri_tl(temp2, r2, pos2);
+ tcg_gen_shri_tl(temp1, r1, pos1);
+
+ (*op1)(temp1, temp1, temp2);
+ (*op2)(temp1 , ret, temp1);
+
+ tcg_gen_deposit_tl(ret, ret, temp1, 0, 1);
+
+ tcg_temp_free(temp1);
+ tcg_temp_free(temp2);
+}
+
+/* ret = r1[pos1] op1 r2[pos2]; */
+static inline void gen_bit_1op(TCGv ret, TCGv r1, TCGv r2,
+ int pos1, int pos2,
+ void(*op1)(TCGv, TCGv, TCGv))
+{
+ TCGv temp1, temp2;
+
+ temp1 = tcg_temp_new();
+ temp2 = tcg_temp_new();
+
+ tcg_gen_shri_tl(temp2, r2, pos2);
+ tcg_gen_shri_tl(temp1, r1, pos1);
+
+ (*op1)(ret, temp1, temp2);
+
+ tcg_gen_andi_tl(ret, ret, 0x1);
+
+ tcg_temp_free(temp1);
+ tcg_temp_free(temp2);
+}
+
/* helpers for generating program flow micro-ops */
static inline void gen_save_pc(target_ulong pc)
@@ -1345,6 +1388,253 @@ static void decode_abs_storeb_h(CPUTriCoreState *env, DisasContext *ctx)
tcg_temp_free(temp);
}
+/* Bit-format */
+
+static void decode_bit_andacc(CPUTriCoreState *env, DisasContext *ctx)
+{
+ uint32_t op2;
+ int r1, r2, r3;
+ int pos1, pos2;
+
+ r1 = MASK_OP_BIT_S1(ctx->opcode);
+ r2 = MASK_OP_BIT_S2(ctx->opcode);
+ r3 = MASK_OP_BIT_D(ctx->opcode);
+ pos1 = MASK_OP_BIT_POS1(ctx->opcode);
+ pos2 = MASK_OP_BIT_POS2(ctx->opcode);
+ op2 = MASK_OP_BIT_OP2(ctx->opcode);
+
+
+ switch (op2) {
+ case OPC2_32_BIT_AND_AND_T:
+ gen_bit_2op(cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2],
+ pos1, pos2, &tcg_gen_and_tl, &tcg_gen_and_tl);
+ break;
+ case OPC2_32_BIT_AND_ANDN_T:
+ gen_bit_2op(cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2],
+ pos1, pos2, &tcg_gen_andc_tl, &tcg_gen_and_tl);
+ break;
+ case OPC2_32_BIT_AND_NOR_T:
+#if defined TCG_TARGET_HAS_nor_i32
+ gen_bit_2op(cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2],
+ pos1, pos2, &tcg_gen_nor_tl, &tcg_gen_and_tl);
+#else
+ gen_bit_2op(cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2],
+ pos1, pos2, &tcg_gen_or_tl, &tcg_gen_andc_tl);
+#endif
+ break;
+ case OPC2_32_BIT_AND_OR_T:
+ gen_bit_2op(cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2],
+ pos1, pos2, &tcg_gen_or_tl, &tcg_gen_and_tl);
+ break;
+ }
+}
+
+static void decode_bit_logical_t(CPUTriCoreState *env, DisasContext *ctx)
+{
+ uint32_t op2;
+ int r1, r2, r3;
+ int pos1, pos2;
+ r1 = MASK_OP_BIT_S1(ctx->opcode);
+ r2 = MASK_OP_BIT_S2(ctx->opcode);
+ r3 = MASK_OP_BIT_D(ctx->opcode);
+ pos1 = MASK_OP_BIT_POS1(ctx->opcode);
+ pos2 = MASK_OP_BIT_POS2(ctx->opcode);
+ op2 = MASK_OP_BIT_OP2(ctx->opcode);
+
+ switch (op2) {
+ case OPC2_32_BIT_AND_T:
+ gen_bit_1op(cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2],
+ pos1, pos2, &tcg_gen_and_tl);
+ break;
+ case OPC2_32_BIT_ANDN_T:
+ gen_bit_1op(cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2],
+ pos1, pos2, &tcg_gen_andc_tl);
+ break;
+ case OPC2_32_BIT_NOR_T:
+ gen_bit_1op(cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2],
+ pos1, pos2, &tcg_gen_nor_tl);
+ break;
+ case OPC2_32_BIT_OR_T:
+ gen_bit_1op(cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2],
+ pos1, pos2, &tcg_gen_or_tl);
+ break;
+ }
+}
+
+static void decode_bit_insert(CPUTriCoreState *env, DisasContext *ctx)
+{
+ uint32_t op2;
+ int r1, r2, r3;
+ int pos1, pos2;
+ TCGv temp;
+ op2 = MASK_OP_BIT_OP2(ctx->opcode);
+ r1 = MASK_OP_BIT_S1(ctx->opcode);
+ r2 = MASK_OP_BIT_S2(ctx->opcode);
+ r3 = MASK_OP_BIT_D(ctx->opcode);
+ pos1 = MASK_OP_BIT_POS1(ctx->opcode);
+ pos2 = MASK_OP_BIT_POS2(ctx->opcode);
+
+ temp = tcg_temp_new();
+
+ tcg_gen_shri_tl(temp, cpu_gpr_d[r2], pos2);
+ if (op2 == OPC2_32_BIT_INSN_T) {
+ tcg_gen_not_tl(temp, temp);
+ }
+ tcg_gen_deposit_tl(cpu_gpr_d[r3], cpu_gpr_d[r1], temp, pos1, 1);
+ tcg_temp_free(temp);
+}
+
+static void decode_bit_logical_t2(CPUTriCoreState *env, DisasContext *ctx)
+{
+ uint32_t op2;
+
+ int r1, r2, r3;
+ int pos1, pos2;
+
+ op2 = MASK_OP_BIT_OP2(ctx->opcode);
+ r1 = MASK_OP_BIT_S1(ctx->opcode);
+ r2 = MASK_OP_BIT_S2(ctx->opcode);
+ r3 = MASK_OP_BIT_D(ctx->opcode);
+ pos1 = MASK_OP_BIT_POS1(ctx->opcode);
+ pos2 = MASK_OP_BIT_POS2(ctx->opcode);
+
+ switch (op2) {
+ case OPC2_32_BIT_NAND_T:
+ gen_bit_1op(cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2],
+ pos1, pos2, &tcg_gen_nand_tl);
+ break;
+ case OPC2_32_BIT_ORN_T:
+ gen_bit_1op(cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2],
+ pos1, pos2, &tcg_gen_orc_tl);
+ break;
+ case OPC2_32_BIT_XNOR_T:
+ gen_bit_1op(cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2],
+ pos1, pos2, &tcg_gen_eqv_tl);
+ break;
+ case OPC2_32_BIT_XOR_T:
+ gen_bit_1op(cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2],
+ pos1, pos2, &tcg_gen_xor_tl);
+ break;
+ }
+}
+
+static void decode_bit_orand(CPUTriCoreState *env, DisasContext *ctx)
+{
+ uint32_t op2;
+
+ int r1, r2, r3;
+ int pos1, pos2;
+
+ op2 = MASK_OP_BIT_OP2(ctx->opcode);
+ r1 = MASK_OP_BIT_S1(ctx->opcode);
+ r2 = MASK_OP_BIT_S2(ctx->opcode);
+ r3 = MASK_OP_BIT_D(ctx->opcode);
+ pos1 = MASK_OP_BIT_POS1(ctx->opcode);
+ pos2 = MASK_OP_BIT_POS2(ctx->opcode);
+
+ switch (op2) {
+ case OPC2_32_BIT_OR_AND_T:
+ gen_bit_2op(cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2],
+ pos1, pos2, &tcg_gen_and_tl, &tcg_gen_or_tl);
+ break;
+ case OPC2_32_BIT_OR_ANDN_T:
+ gen_bit_2op(cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2],
+ pos1, pos2, &tcg_gen_andc_tl, &tcg_gen_or_tl);
+ break;
+ case OPC2_32_BIT_OR_NOR_T:
+#if defined TCG_TARGET_HAS_nor_i32
+ gen_bit_2op(cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2],
+ pos1, pos2, &tcg_gen_nor_tl, &tcg_gen_or_tl);
+#else
+ gen_bit_2op(cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2],
+ pos1, pos2, &tcg_gen_or_tl, &tcg_gen_orc_tl);
+#endif
+ break;
+ case OPC2_32_BIT_OR_OR_T:
+ gen_bit_2op(cpu_gpr_d[r3], cpu_gpr_d[r1], cpu_gpr_d[r2],
+ pos1, pos2, &tcg_gen_or_tl, &tcg_gen_or_tl);
+ break;
+ }
+}
+
+static void decode_bit_sh_logic1(CPUTriCoreState *env, DisasContext *ctx)
+{
+ uint32_t op2;
+ int r1, r2, r3;
+ int pos1, pos2;
+ TCGv temp;
+
+ op2 = MASK_OP_BIT_OP2(ctx->opcode);
+ r1 = MASK_OP_BIT_S1(ctx->opcode);
+ r2 = MASK_OP_BIT_S2(ctx->opcode);
+ r3 = MASK_OP_BIT_D(ctx->opcode);
+ pos1 = MASK_OP_BIT_POS1(ctx->opcode);
+ pos2 = MASK_OP_BIT_POS2(ctx->opcode);
+
+ temp = tcg_temp_new();
+
+ switch (op2) {
+ case OPC2_32_BIT_SH_AND_T:
+ gen_bit_1op(temp, cpu_gpr_d[r1], cpu_gpr_d[r2],
+ pos1, pos2, &tcg_gen_and_tl);
+ break;
+ case OPC2_32_BIT_SH_ANDN_T:
+ gen_bit_1op(temp, cpu_gpr_d[r1], cpu_gpr_d[r2],
+ pos1, pos2, &tcg_gen_andc_tl);
+ break;
+ case OPC2_32_BIT_SH_NOR_T:
+ gen_bit_1op(temp, cpu_gpr_d[r1], cpu_gpr_d[r2],
+ pos1, pos2, &tcg_gen_nor_tl);
+ break;
+ case OPC2_32_BIT_SH_OR_T:
+ gen_bit_1op(temp, cpu_gpr_d[r1], cpu_gpr_d[r2],
+ pos1, pos2, &tcg_gen_or_tl);
+ break;
+ }
+ tcg_gen_shli_tl(cpu_gpr_d[r3], cpu_gpr_d[r3], 1);
+ tcg_gen_add_tl(cpu_gpr_d[r3], cpu_gpr_d[r3], temp);
+ tcg_temp_free(temp);
+}
+
+static void decode_bit_sh_logic2(CPUTriCoreState *env, DisasContext *ctx)
+{
+ uint32_t op2;
+ int r1, r2, r3;
+ int pos1, pos2;
+ TCGv temp;
+
+ op2 = MASK_OP_BIT_OP2(ctx->opcode);
+ r1 = MASK_OP_BIT_S1(ctx->opcode);
+ r2 = MASK_OP_BIT_S2(ctx->opcode);
+ r3 = MASK_OP_BIT_D(ctx->opcode);
+ pos1 = MASK_OP_BIT_POS1(ctx->opcode);
+ pos2 = MASK_OP_BIT_POS2(ctx->opcode);
+
+ temp = tcg_temp_new();
+
+ switch (op2) {
+ case OPC2_32_BIT_SH_NAND_T:
+ gen_bit_1op(temp, cpu_gpr_d[r1] , cpu_gpr_d[r2] ,
+ pos1, pos2, &tcg_gen_nand_tl);
+ break;
+ case OPC2_32_BIT_SH_ORN_T:
+ gen_bit_1op(temp, cpu_gpr_d[r1], cpu_gpr_d[r2],
+ pos1, pos2, &tcg_gen_orc_tl);
+ break;
+ case OPC2_32_BIT_SH_XNOR_T:
+ gen_bit_1op(temp, cpu_gpr_d[r1], cpu_gpr_d[r2],
+ pos1, pos2, &tcg_gen_eqv_tl);
+ break;
+ case OPC2_32_BIT_SH_XOR_T:
+ gen_bit_1op(temp, cpu_gpr_d[r1], cpu_gpr_d[r2],
+ pos1, pos2, &tcg_gen_xor_tl);
+ break;
+ }
+ tcg_gen_shli_tl(cpu_gpr_d[r3], cpu_gpr_d[r3], 1);
+ tcg_gen_add_tl(cpu_gpr_d[r3], cpu_gpr_d[r3], temp);
+ tcg_temp_free(temp);
+}
+
static void decode_32Bit_opc(CPUTriCoreState *env, DisasContext *ctx)
{
int op1;
@@ -1430,6 +1720,28 @@ static void decode_32Bit_opc(CPUTriCoreState *env, DisasContext *ctx)
address = MASK_OP_B_DISP24(ctx->opcode);
gen_compute_branch(ctx, op1, 0, 0, 0, address);
break;
+/* Bit-format */
+ case OPCM_32_BIT_ANDACC:
+ decode_bit_andacc(env, ctx);
+ break;
+ case OPCM_32_BIT_LOGICAL_T1:
+ decode_bit_logical_t(env, ctx);
+ break;
+ case OPCM_32_BIT_INSERT:
+ decode_bit_insert(env, ctx);
+ break;
+ case OPCM_32_BIT_LOGICAL_T2:
+ decode_bit_logical_t2(env, ctx);
+ break;
+ case OPCM_32_BIT_ORAND:
+ decode_bit_orand(env, ctx);
+ break;
+ case OPCM_32_BIT_SH_LOGIC1:
+ decode_bit_sh_logic1(env, ctx);
+ break;
+ case OPCM_32_BIT_SH_LOGIC2:
+ decode_bit_sh_logic2(env, ctx);
+ break;
}
}
--
2.1.1
next prev parent reply other threads:[~2014-10-01 8:36 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-01 9:35 [Qemu-devel] [PATCH v2 0/5] Add TriCore ABS, ABSB, B, BIT, BO instructions Bastian Koppelmann
2014-10-01 9:35 ` [Qemu-devel] [PATCH v2 1/5] target-tricore: Cleanup and Bugfixes Bastian Koppelmann
2014-10-01 9:35 ` [Qemu-devel] [PATCH v2 2/5] target-tricore: Add instructions of ABS, ABSB opcode format Bastian Koppelmann
2014-10-01 15:46 ` Richard Henderson
2014-10-01 9:35 ` [Qemu-devel] [PATCH v2 3/5] target-tricore: Add instructions of B " Bastian Koppelmann
2014-10-01 9:35 ` Bastian Koppelmann [this message]
2014-10-01 15:51 ` [Qemu-devel] [PATCH v2 4/5] target-tricore: Add instructions of BIT " Richard Henderson
2014-10-01 9:35 ` [Qemu-devel] [PATCH v2 5/5] target-tricore: Add instructions of BO " Bastian Koppelmann
2014-10-01 16:02 ` Richard Henderson
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