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[PATCH 22/26] target/mips: Extract Toshiba TXx9 translation routines
|
From: |
Philippe Mathieu-Daudé |
|
Subject: |
[PATCH 22/26] target/mips: Extract Toshiba TXx9 translation routines |
|
Date: |
Fri, 20 Nov 2020 22:08:40 +0100 |
Extract 300 lines of the Toshiba TX19/TX39/TX49/TX79
translation routines to 'vendor-tx_translate.c.inc'.
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
target/mips/translate.c | 302 +-----------------------
target/mips/vendor-tx_translate.c.inc | 315 ++++++++++++++++++++++++++
2 files changed, 316 insertions(+), 301 deletions(-)
create mode 100644 target/mips/vendor-tx_translate.c.inc
diff --git a/target/mips/translate.c b/target/mips/translate.c
index 6b35498dd3d..a1cf1fe7f23 100644
--- a/target/mips/translate.c
+++ b/target/mips/translate.c
@@ -730,31 +730,6 @@ enum {
* configure the 128-bit data path as two 64-bit, four 32-bit, eight 16-bit
* or sixteen 8-bit paths.
*
- * Reference:
- *
- * The Toshiba TX System RISC TX79 Core Architecture manual,
- * https://wiki.qemu.org/File:C790.pdf
- *
- * Three-Operand Multiply and Multiply-Add (4 instructions)
- * --------------------------------------------------------
- * MADD [rd,] rs, rt Multiply/Add
- * MADDU [rd,] rs, rt Multiply/Add Unsigned
- * MULT [rd,] rs, rt Multiply (3-operand)
- * MULTU [rd,] rs, rt Multiply Unsigned (3-operand)
- *
- * Multiply Instructions for Pipeline 1 (10 instructions)
- * ------------------------------------------------------
- * MULT1 [rd,] rs, rt Multiply Pipeline 1
- * MULTU1 [rd,] rs, rt Multiply Unsigned Pipeline 1
- * DIV1 rs, rt Divide Pipeline 1
- * DIVU1 rs, rt Divide Unsigned Pipeline 1
- * MADD1 [rd,] rs, rt Multiply-Add Pipeline 1
- * MADDU1 [rd,] rs, rt Multiply-Add Unsigned Pipeline 1
- * MFHI1 rd Move From HI1 Register
- * MFLO1 rd Move From LO1 Register
- * MTHI1 rs Move To HI1 Register
- * MTLO1 rs Move To LO1 Register
- *
* Arithmetic (19 instructions)
* ----------------------------
* PADDB rd, rs, rt Parallel Add Byte
@@ -3046,44 +3021,6 @@ static void gen_shift(DisasContext *ctx, uint32_t opc,
tcg_temp_free(t1);
}
-#if defined(TARGET_MIPS64)
-/* Copy GPR to and from TX79 HI1/LO1 register. */
-static void gen_HILO1_tx79(DisasContext *ctx, uint32_t opc, int reg)
-{
- if (reg == 0 && (opc == OPC_MFHI1 || opc == OPC_MFLO1)) {
- /* Treat as NOP. */
- return;
- }
-
- switch (opc) {
- case OPC_MFHI1:
- tcg_gen_mov_tl(cpu_gpr[reg], cpu_HI[1]);
- break;
- case OPC_MFLO1:
- tcg_gen_mov_tl(cpu_gpr[reg], cpu_LO[1]);
- break;
- case OPC_MTHI1:
- if (reg != 0) {
- tcg_gen_mov_tl(cpu_HI[1], cpu_gpr[reg]);
- } else {
- tcg_gen_movi_tl(cpu_HI[1], 0);
- }
- break;
- case OPC_MTLO1:
- if (reg != 0) {
- tcg_gen_mov_tl(cpu_LO[1], cpu_gpr[reg]);
- } else {
- tcg_gen_movi_tl(cpu_LO[1], 0);
- }
- break;
- default:
- MIPS_INVAL("mfthilo1 TX79");
- generate_exception_end(ctx, EXCP_RI);
- break;
- }
-}
-#endif
-
/* Arithmetic on HI/LO registers */
static void gen_HILO(DisasContext *ctx, uint32_t opc, int acc, int reg)
{
@@ -3432,65 +3369,6 @@ static void gen_r6_muldiv(DisasContext *ctx, int opc,
int rd, int rs, int rt)
tcg_temp_free(t1);
}
-#if defined(TARGET_MIPS64)
-static void gen_div1_tx79(DisasContext *ctx, uint32_t opc, int rs, int rt)
-{
- TCGv t0, t1;
-
- t0 = tcg_temp_new();
- t1 = tcg_temp_new();
-
- gen_load_gpr(t0, rs);
- gen_load_gpr(t1, rt);
-
- switch (opc) {
- case OPC_DIV1:
- {
- TCGv t2 = tcg_temp_new();
- TCGv t3 = tcg_temp_new();
- tcg_gen_ext32s_tl(t0, t0);
- tcg_gen_ext32s_tl(t1, t1);
- tcg_gen_setcondi_tl(TCG_COND_EQ, t2, t0, INT_MIN);
- tcg_gen_setcondi_tl(TCG_COND_EQ, t3, t1, -1);
- tcg_gen_and_tl(t2, t2, t3);
- tcg_gen_setcondi_tl(TCG_COND_EQ, t3, t1, 0);
- tcg_gen_or_tl(t2, t2, t3);
- tcg_gen_movi_tl(t3, 0);
- tcg_gen_movcond_tl(TCG_COND_NE, t1, t2, t3, t2, t1);
- tcg_gen_div_tl(cpu_LO[1], t0, t1);
- tcg_gen_rem_tl(cpu_HI[1], t0, t1);
- tcg_gen_ext32s_tl(cpu_LO[1], cpu_LO[1]);
- tcg_gen_ext32s_tl(cpu_HI[1], cpu_HI[1]);
- tcg_temp_free(t3);
- tcg_temp_free(t2);
- }
- break;
- case OPC_DIVU1:
- {
- TCGv t2 = tcg_const_tl(0);
- TCGv t3 = tcg_const_tl(1);
- tcg_gen_ext32u_tl(t0, t0);
- tcg_gen_ext32u_tl(t1, t1);
- tcg_gen_movcond_tl(TCG_COND_EQ, t1, t1, t2, t3, t1);
- tcg_gen_divu_tl(cpu_LO[1], t0, t1);
- tcg_gen_remu_tl(cpu_HI[1], t0, t1);
- tcg_gen_ext32s_tl(cpu_LO[1], cpu_LO[1]);
- tcg_gen_ext32s_tl(cpu_HI[1], cpu_HI[1]);
- tcg_temp_free(t3);
- tcg_temp_free(t2);
- }
- break;
- default:
- MIPS_INVAL("div1 TX79");
- generate_exception_end(ctx, EXCP_RI);
- goto out;
- }
- out:
- tcg_temp_free(t0);
- tcg_temp_free(t1);
-}
-#endif
-
static void gen_muldiv(DisasContext *ctx, uint32_t opc,
int acc, int rs, int rt)
{
@@ -3683,138 +3561,6 @@ static void gen_muldiv(DisasContext *ctx, uint32_t opc,
tcg_temp_free(t1);
}
-/*
- * These MULT[U] and MADD[U] instructions implemented in for example
- * the Toshiba/Sony R5900 and the Toshiba TX19, TX39 and TX79 core
- * architectures are special three-operand variants with the syntax
- *
- * MULT[U][1] rd, rs, rt
- *
- * such that
- *
- * (rd, LO, HI) <- rs * rt
- *
- * and
- *
- * MADD[U][1] rd, rs, rt
- *
- * such that
- *
- * (rd, LO, HI) <- (LO, HI) + rs * rt
- *
- * where the low-order 32-bits of the result is placed into both the
- * GPR rd and the special register LO. The high-order 32-bits of the
- * result is placed into the special register HI.
- *
- * If the GPR rd is omitted in assembly language, it is taken to be 0,
- * which is the zero register that always reads as 0.
- */
-static void gen_mul_txx9(DisasContext *ctx, uint32_t opc,
- int rd, int rs, int rt)
-{
- TCGv t0 = tcg_temp_new();
- TCGv t1 = tcg_temp_new();
- int acc = 0;
-
- gen_load_gpr(t0, rs);
- gen_load_gpr(t1, rt);
-
- switch (opc) {
- case OPC_MULT1:
- acc = 1;
- /* Fall through */
- case OPC_MULT:
- {
- TCGv_i32 t2 = tcg_temp_new_i32();
- TCGv_i32 t3 = tcg_temp_new_i32();
- tcg_gen_trunc_tl_i32(t2, t0);
- tcg_gen_trunc_tl_i32(t3, t1);
- tcg_gen_muls2_i32(t2, t3, t2, t3);
- if (rd) {
- tcg_gen_ext_i32_tl(cpu_gpr[rd], t2);
- }
- tcg_gen_ext_i32_tl(cpu_LO[acc], t2);
- tcg_gen_ext_i32_tl(cpu_HI[acc], t3);
- tcg_temp_free_i32(t2);
- tcg_temp_free_i32(t3);
- }
- break;
- case OPC_MULTU1:
- acc = 1;
- /* Fall through */
- case OPC_MULTU:
- {
- TCGv_i32 t2 = tcg_temp_new_i32();
- TCGv_i32 t3 = tcg_temp_new_i32();
- tcg_gen_trunc_tl_i32(t2, t0);
- tcg_gen_trunc_tl_i32(t3, t1);
- tcg_gen_mulu2_i32(t2, t3, t2, t3);
- if (rd) {
- tcg_gen_ext_i32_tl(cpu_gpr[rd], t2);
- }
- tcg_gen_ext_i32_tl(cpu_LO[acc], t2);
- tcg_gen_ext_i32_tl(cpu_HI[acc], t3);
- tcg_temp_free_i32(t2);
- tcg_temp_free_i32(t3);
- }
- break;
- case OPC_MADD1:
- acc = 1;
- /* Fall through */
- case OPC_MADD:
- {
- TCGv_i64 t2 = tcg_temp_new_i64();
- TCGv_i64 t3 = tcg_temp_new_i64();
-
- tcg_gen_ext_tl_i64(t2, t0);
- tcg_gen_ext_tl_i64(t3, t1);
- tcg_gen_mul_i64(t2, t2, t3);
- tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]);
- tcg_gen_add_i64(t2, t2, t3);
- tcg_temp_free_i64(t3);
- gen_move_low32(cpu_LO[acc], t2);
- gen_move_high32(cpu_HI[acc], t2);
- if (rd) {
- gen_move_low32(cpu_gpr[rd], t2);
- }
- tcg_temp_free_i64(t2);
- }
- break;
- case OPC_MADDU1:
- acc = 1;
- /* Fall through */
- case OPC_MADDU:
- {
- TCGv_i64 t2 = tcg_temp_new_i64();
- TCGv_i64 t3 = tcg_temp_new_i64();
-
- tcg_gen_ext32u_tl(t0, t0);
- tcg_gen_ext32u_tl(t1, t1);
- tcg_gen_extu_tl_i64(t2, t0);
- tcg_gen_extu_tl_i64(t3, t1);
- tcg_gen_mul_i64(t2, t2, t3);
- tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]);
- tcg_gen_add_i64(t2, t2, t3);
- tcg_temp_free_i64(t3);
- gen_move_low32(cpu_LO[acc], t2);
- gen_move_high32(cpu_HI[acc], t2);
- if (rd) {
- gen_move_low32(cpu_gpr[rd], t2);
- }
- tcg_temp_free_i64(t2);
- }
- break;
- default:
- MIPS_INVAL("mul/madd TXx9");
- generate_exception_end(ctx, EXCP_RI);
- goto out;
- }
-
- out:
- tcg_temp_free(t0);
- tcg_temp_free(t1);
-}
-
static void gen_cl(DisasContext *ctx, uint32_t opc,
int rd, int rs)
{
@@ -11247,6 +10993,7 @@ out:
#include "mod-mips-dsp_translate.c.inc"
#include "vendor-vr54xx_translate.c.inc"
+#include "vendor-tx_translate.c.inc"
#include "vendor-loong-simd_translate.c.inc"
#include "vendor-loong-lext_translate.c.inc"
#include "vendor-xburst_translate.c.inc"
@@ -11365,53 +11112,6 @@ static void decode_opc_special_r6(CPUMIPSState *env,
DisasContext *ctx)
}
}
-static void decode_opc_special_tx79(CPUMIPSState *env, DisasContext *ctx)
-{
- int rs = extract32(ctx->opcode, 21, 5);
- int rt = extract32(ctx->opcode, 16, 5);
- int rd = extract32(ctx->opcode, 11, 5);
- uint32_t op1 = MASK_SPECIAL(ctx->opcode);
-
- switch (op1) {
- case OPC_MOVN: /* Conditional move */
- case OPC_MOVZ:
- gen_cond_move(ctx, op1, rd, rs, rt);
- break;
- case OPC_MFHI: /* Move from HI/LO */
- case OPC_MFLO:
- gen_HILO(ctx, op1, 0, rd);
- break;
- case OPC_MTHI:
- case OPC_MTLO: /* Move to HI/LO */
- gen_HILO(ctx, op1, 0, rs);
- break;
- case OPC_MULT:
- case OPC_MULTU:
- gen_mul_txx9(ctx, op1, rd, rs, rt);
- break;
- case OPC_DIV:
- case OPC_DIVU:
- gen_muldiv(ctx, op1, 0, rs, rt);
- break;
-#if defined(TARGET_MIPS64)
- case OPC_DMULT:
- case OPC_DMULTU:
- case OPC_DDIV:
- case OPC_DDIVU:
- check_insn_opc_user_only(ctx, INSN_R5900);
- gen_muldiv(ctx, op1, 0, rs, rt);
- break;
-#endif
- case OPC_JR:
- gen_compute_branch(ctx, op1, 4, rs, 0, 0, 4);
- break;
- default: /* Invalid */
- MIPS_INVAL("special_tx79");
- generate_exception_end(ctx, EXCP_RI);
- break;
- }
-}
-
static void decode_opc_special_legacy(CPUMIPSState *env, DisasContext *ctx)
{
int rs, rt, rd, sa;
diff --git a/target/mips/vendor-tx_translate.c.inc
b/target/mips/vendor-tx_translate.c.inc
new file mode 100644
index 00000000000..1d157743bd4
--- /dev/null
+++ b/target/mips/vendor-tx_translate.c.inc
@@ -0,0 +1,315 @@
+/*
+ * Toshiba TX instruction translation routines.
+ *
+ * Copyright (c) 2004-2005 Jocelyn Mayer
+ * Copyright (c) 2006 Marius Groeger (FPU operations)
+ * Copyright (c) 2006 Thiemo Seufer (MIPS32R2 support)
+ * Copyright (c) 2009 CodeSourcery (MIPS16 and microMIPS support)
+ * Copyright (c) 2012 Jia Liu & Dongxue Zhang (MIPS ASE DSP support)
+ *
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ *
+ * Overview of the TX79-specific instruction set
+ * =============================================
+ *
+ * Reference:
+ *
+ * The Toshiba TX System RISC TX79 Core Architecture manual,
+ * https://wiki.qemu.org/File:C790.pdf
+ *
+ * Three-Operand Multiply and Multiply-Add (4 instructions)
+ * --------------------------------------------------------
+ * MADD [rd,] rs, rt Multiply/Add
+ * MADDU [rd,] rs, rt Multiply/Add Unsigned
+ * MULT [rd,] rs, rt Multiply (3-operand)
+ * MULTU [rd,] rs, rt Multiply Unsigned (3-operand)
+ *
+ * Multiply Instructions for Pipeline 1 (10 instructions)
+ * ------------------------------------------------------
+ * MULT1 [rd,] rs, rt Multiply Pipeline 1
+ * MULTU1 [rd,] rs, rt Multiply Unsigned Pipeline 1
+ * DIV1 rs, rt Divide Pipeline 1
+ * DIVU1 rs, rt Divide Unsigned Pipeline 1
+ * MADD1 [rd,] rs, rt Multiply-Add Pipeline 1
+ * MADDU1 [rd,] rs, rt Multiply-Add Unsigned Pipeline 1
+ * MFHI1 rd Move From HI1 Register
+ * MFLO1 rd Move From LO1 Register
+ * MTHI1 rs Move To HI1 Register
+ * MTLO1 rs Move To LO1 Register
+ *
+ */
+
+#if defined(TARGET_MIPS64)
+
+/* Copy GPR to and from TX79 HI1/LO1 register. */
+static void gen_HILO1_tx79(DisasContext *ctx, uint32_t opc, int reg)
+{
+ if (reg == 0 && (opc == OPC_MFHI1 || opc == OPC_MFLO1)) {
+ /* Treat as NOP. */
+ return;
+ }
+
+ switch (opc) {
+ case OPC_MFHI1:
+ tcg_gen_mov_tl(cpu_gpr[reg], cpu_HI[1]);
+ break;
+ case OPC_MFLO1:
+ tcg_gen_mov_tl(cpu_gpr[reg], cpu_LO[1]);
+ break;
+ case OPC_MTHI1:
+ if (reg != 0) {
+ tcg_gen_mov_tl(cpu_HI[1], cpu_gpr[reg]);
+ } else {
+ tcg_gen_movi_tl(cpu_HI[1], 0);
+ }
+ break;
+ case OPC_MTLO1:
+ if (reg != 0) {
+ tcg_gen_mov_tl(cpu_LO[1], cpu_gpr[reg]);
+ } else {
+ tcg_gen_movi_tl(cpu_LO[1], 0);
+ }
+ break;
+ default:
+ MIPS_INVAL("mfthilo1 TX79");
+ generate_exception_end(ctx, EXCP_RI);
+ break;
+ }
+}
+
+static void gen_div1_tx79(DisasContext *ctx, uint32_t opc, int rs, int rt)
+{
+ TCGv t0, t1;
+
+ t0 = tcg_temp_new();
+ t1 = tcg_temp_new();
+
+ gen_load_gpr(t0, rs);
+ gen_load_gpr(t1, rt);
+
+ switch (opc) {
+ case OPC_DIV1:
+ {
+ TCGv t2 = tcg_temp_new();
+ TCGv t3 = tcg_temp_new();
+ tcg_gen_ext32s_tl(t0, t0);
+ tcg_gen_ext32s_tl(t1, t1);
+ tcg_gen_setcondi_tl(TCG_COND_EQ, t2, t0, INT_MIN);
+ tcg_gen_setcondi_tl(TCG_COND_EQ, t3, t1, -1);
+ tcg_gen_and_tl(t2, t2, t3);
+ tcg_gen_setcondi_tl(TCG_COND_EQ, t3, t1, 0);
+ tcg_gen_or_tl(t2, t2, t3);
+ tcg_gen_movi_tl(t3, 0);
+ tcg_gen_movcond_tl(TCG_COND_NE, t1, t2, t3, t2, t1);
+ tcg_gen_div_tl(cpu_LO[1], t0, t1);
+ tcg_gen_rem_tl(cpu_HI[1], t0, t1);
+ tcg_gen_ext32s_tl(cpu_LO[1], cpu_LO[1]);
+ tcg_gen_ext32s_tl(cpu_HI[1], cpu_HI[1]);
+ tcg_temp_free(t3);
+ tcg_temp_free(t2);
+ }
+ break;
+ case OPC_DIVU1:
+ {
+ TCGv t2 = tcg_const_tl(0);
+ TCGv t3 = tcg_const_tl(1);
+ tcg_gen_ext32u_tl(t0, t0);
+ tcg_gen_ext32u_tl(t1, t1);
+ tcg_gen_movcond_tl(TCG_COND_EQ, t1, t1, t2, t3, t1);
+ tcg_gen_divu_tl(cpu_LO[1], t0, t1);
+ tcg_gen_remu_tl(cpu_HI[1], t0, t1);
+ tcg_gen_ext32s_tl(cpu_LO[1], cpu_LO[1]);
+ tcg_gen_ext32s_tl(cpu_HI[1], cpu_HI[1]);
+ tcg_temp_free(t3);
+ tcg_temp_free(t2);
+ }
+ break;
+ default:
+ MIPS_INVAL("div1 TX79");
+ generate_exception_end(ctx, EXCP_RI);
+ goto out;
+ }
+ out:
+ tcg_temp_free(t0);
+ tcg_temp_free(t1);
+}
+#endif
+
+/*
+ * These MULT[U] and MADD[U] instructions implemented in for example
+ * the Toshiba/Sony R5900 and the Toshiba TX19, TX39 and TX79 core
+ * architectures are special three-operand variants with the syntax
+ *
+ * MULT[U][1] rd, rs, rt
+ *
+ * such that
+ *
+ * (rd, LO, HI) <- rs * rt
+ *
+ * and
+ *
+ * MADD[U][1] rd, rs, rt
+ *
+ * such that
+ *
+ * (rd, LO, HI) <- (LO, HI) + rs * rt
+ *
+ * where the low-order 32-bits of the result is placed into both the
+ * GPR rd and the special register LO. The high-order 32-bits of the
+ * result is placed into the special register HI.
+ *
+ * If the GPR rd is omitted in assembly language, it is taken to be 0,
+ * which is the zero register that always reads as 0.
+ */
+static void gen_mul_txx9(DisasContext *ctx, uint32_t opc,
+ int rd, int rs, int rt)
+{
+ TCGv t0 = tcg_temp_new();
+ TCGv t1 = tcg_temp_new();
+ int acc = 0;
+
+ gen_load_gpr(t0, rs);
+ gen_load_gpr(t1, rt);
+
+ switch (opc) {
+ case OPC_MULT1:
+ acc = 1;
+ /* Fall through */
+ case OPC_MULT:
+ {
+ TCGv_i32 t2 = tcg_temp_new_i32();
+ TCGv_i32 t3 = tcg_temp_new_i32();
+ tcg_gen_trunc_tl_i32(t2, t0);
+ tcg_gen_trunc_tl_i32(t3, t1);
+ tcg_gen_muls2_i32(t2, t3, t2, t3);
+ if (rd) {
+ tcg_gen_ext_i32_tl(cpu_gpr[rd], t2);
+ }
+ tcg_gen_ext_i32_tl(cpu_LO[acc], t2);
+ tcg_gen_ext_i32_tl(cpu_HI[acc], t3);
+ tcg_temp_free_i32(t2);
+ tcg_temp_free_i32(t3);
+ }
+ break;
+ case OPC_MULTU1:
+ acc = 1;
+ /* Fall through */
+ case OPC_MULTU:
+ {
+ TCGv_i32 t2 = tcg_temp_new_i32();
+ TCGv_i32 t3 = tcg_temp_new_i32();
+ tcg_gen_trunc_tl_i32(t2, t0);
+ tcg_gen_trunc_tl_i32(t3, t1);
+ tcg_gen_mulu2_i32(t2, t3, t2, t3);
+ if (rd) {
+ tcg_gen_ext_i32_tl(cpu_gpr[rd], t2);
+ }
+ tcg_gen_ext_i32_tl(cpu_LO[acc], t2);
+ tcg_gen_ext_i32_tl(cpu_HI[acc], t3);
+ tcg_temp_free_i32(t2);
+ tcg_temp_free_i32(t3);
+ }
+ break;
+ case OPC_MADD1:
+ acc = 1;
+ /* Fall through */
+ case OPC_MADD:
+ {
+ TCGv_i64 t2 = tcg_temp_new_i64();
+ TCGv_i64 t3 = tcg_temp_new_i64();
+
+ tcg_gen_ext_tl_i64(t2, t0);
+ tcg_gen_ext_tl_i64(t3, t1);
+ tcg_gen_mul_i64(t2, t2, t3);
+ tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]);
+ tcg_gen_add_i64(t2, t2, t3);
+ tcg_temp_free_i64(t3);
+ gen_move_low32(cpu_LO[acc], t2);
+ gen_move_high32(cpu_HI[acc], t2);
+ if (rd) {
+ gen_move_low32(cpu_gpr[rd], t2);
+ }
+ tcg_temp_free_i64(t2);
+ }
+ break;
+ case OPC_MADDU1:
+ acc = 1;
+ /* Fall through */
+ case OPC_MADDU:
+ {
+ TCGv_i64 t2 = tcg_temp_new_i64();
+ TCGv_i64 t3 = tcg_temp_new_i64();
+
+ tcg_gen_ext32u_tl(t0, t0);
+ tcg_gen_ext32u_tl(t1, t1);
+ tcg_gen_extu_tl_i64(t2, t0);
+ tcg_gen_extu_tl_i64(t3, t1);
+ tcg_gen_mul_i64(t2, t2, t3);
+ tcg_gen_concat_tl_i64(t3, cpu_LO[acc], cpu_HI[acc]);
+ tcg_gen_add_i64(t2, t2, t3);
+ tcg_temp_free_i64(t3);
+ gen_move_low32(cpu_LO[acc], t2);
+ gen_move_high32(cpu_HI[acc], t2);
+ if (rd) {
+ gen_move_low32(cpu_gpr[rd], t2);
+ }
+ tcg_temp_free_i64(t2);
+ }
+ break;
+ default:
+ MIPS_INVAL("mul/madd TXx9");
+ generate_exception_end(ctx, EXCP_RI);
+ goto out;
+ }
+
+ out:
+ tcg_temp_free(t0);
+ tcg_temp_free(t1);
+}
+
+static void decode_opc_special_tx79(CPUMIPSState *env, DisasContext *ctx)
+{
+ int rs = extract32(ctx->opcode, 21, 5);
+ int rt = extract32(ctx->opcode, 16, 5);
+ int rd = extract32(ctx->opcode, 11, 5);
+ uint32_t op1 = MASK_SPECIAL(ctx->opcode);
+
+ switch (op1) {
+ case OPC_MOVN: /* Conditional move */
+ case OPC_MOVZ:
+ gen_cond_move(ctx, op1, rd, rs, rt);
+ break;
+ case OPC_MFHI: /* Move from HI/LO */
+ case OPC_MFLO:
+ gen_HILO(ctx, op1, 0, rd);
+ break;
+ case OPC_MTHI:
+ case OPC_MTLO: /* Move to HI/LO */
+ gen_HILO(ctx, op1, 0, rs);
+ break;
+ case OPC_MULT:
+ case OPC_MULTU:
+ gen_mul_txx9(ctx, op1, rd, rs, rt);
+ break;
+ case OPC_DIV:
+ case OPC_DIVU:
+ gen_muldiv(ctx, op1, 0, rs, rt);
+ break;
+#if defined(TARGET_MIPS64)
+ case OPC_DMULT:
+ case OPC_DMULTU:
+ case OPC_DDIV:
+ case OPC_DDIVU:
+ check_insn_opc_user_only(ctx, INSN_R5900);
+ gen_muldiv(ctx, op1, 0, rs, rt);
+ break;
+#endif
+ case OPC_JR:
+ gen_compute_branch(ctx, op1, 4, rs, 0, 0, 4);
+ break;
+ default: /* Invalid */
+ MIPS_INVAL("special_tx79");
+ generate_exception_end(ctx, EXCP_RI);
+ break;
+ }
+}
--
2.26.2
- Re: [PATCH 18/26] target/mips: Extract Loongson SIMD translation routines, (continued)
- [PATCH 19/26] target/mips: Extract Loongson EXTensions translation routines, Philippe Mathieu-Daudé, 2020/11/20
- [PATCH 20/26] target/mips: Extract XBurst Media eXtension Unit translation routines, Philippe Mathieu-Daudé, 2020/11/20
- [PATCH 21/26] target/mips: Make pipeline 1 multiply opcodes generic, Philippe Mathieu-Daudé, 2020/11/20
- [PATCH 22/26] target/mips: Extract Toshiba TXx9 translation routines,
Philippe Mathieu-Daudé <=
- [PATCH 23/26] target/mips: Extract Toshiba TX79 multimedia translation routines, Philippe Mathieu-Daudé, 2020/11/20
- [PATCH 24/26] MAINTAINERS: Add entry for MIPS Loongson TCG, Philippe Mathieu-Daudé, 2020/11/20
- [PATCH 25/26] MAINTAINERS: Add entry for MIPS Ingenic Xburst TCG, Philippe Mathieu-Daudé, 2020/11/20
- [PATCH 26/26] MAINTAINERS: Add entry for MIPS Toshiba TCG, Philippe Mathieu-Daudé, 2020/11/20