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[Qemu-devel] [PATCH v3 5/5] target-tricore: Add instructions of BO opcod
|
From: |
Bastian Koppelmann |
|
Subject: |
[Qemu-devel] [PATCH v3 5/5] target-tricore: Add instructions of BO opcode format |
|
Date: |
Mon, 13 Oct 2014 17:27:04 +0100 |
Add instructions of BO opcode format.
Add microcode generator functions gen_swap, gen_ldmst.
Add microcode generator functions gen_st/ld_preincr, which write back the
address after the memory access.
Add helper for circular and bit reverse addr mode calculation.
Add sign extended bitmask for BO_OFF10 field.
Signed-off-by: Bastian Koppelmann <address@hidden>
---
v2 -> v3:
- Add microcode generator functions gen_st/ld_preincr, which write back the
address after the memory access.
- ST/LD_PREINC insn now use gen_st/ld_preincr or write back the address
after
after the memory access.
target-tricore/helper.h | 3 +
target-tricore/op_helper.c | 36 +++
target-tricore/translate.c | 663 +++++++++++++++++++++++++++++++++++++++
target-tricore/tricore-opcodes.h | 2 +
4 files changed, 704 insertions(+)
diff --git a/target-tricore/helper.h b/target-tricore/helper.h
index fbabbd5..b3fc33c 100644
--- a/target-tricore/helper.h
+++ b/target-tricore/helper.h
@@ -27,3 +27,6 @@ DEF_HELPER_2(ldlcx, void, env, i32)
DEF_HELPER_2(lducx, void, env, i32)
DEF_HELPER_2(stlcx, void, env, i32)
DEF_HELPER_2(stucx, void, env, i32)
+/* Address mode helper */
+DEF_HELPER_1(br_update, i32, i32)
+DEF_HELPER_2(circ_update, i32, i32, i32)
diff --git a/target-tricore/op_helper.c b/target-tricore/op_helper.c
index 94b5d8e..a36988a 100644
--- a/target-tricore/op_helper.c
+++ b/target-tricore/op_helper.c
@@ -20,6 +20,42 @@
#include "exec/helper-proto.h"
#include "exec/cpu_ldst.h"
+/* Addressing mode helper */
+
+static uint16_t reverse16(uint16_t val)
+{
+ uint8_t high = (uint8_t)(val >> 8);
+ uint8_t low = (uint8_t)(val & 0xff);
+
+ uint16_t rh, rl;
+
+ rl = (uint16_t)((high * 0x0202020202ULL & 0x010884422010ULL) % 1023);
+ rh = (uint16_t)((low * 0x0202020202ULL & 0x010884422010ULL) % 1023);
+
+ return (rh << 8) | rl;
+}
+
+uint32_t helper_br_update(uint32_t reg)
+{
+ uint32_t index = reg & 0xffff;
+ uint32_t incr = reg >> 16;
+ uint32_t new_index = reverse16(reverse16(index) + reverse16(incr));
+ return reg - index + new_index;
+}
+
+uint32_t helper_circ_update(uint32_t reg, uint32_t off)
+{
+ uint32_t index = reg & 0xffff;
+ uint32_t length = reg >> 16;
+ int32_t new_index = index + off;
+ if (new_index < 0) {
+ new_index += length;
+ } else {
+ new_index %= length;
+ }
+ return reg - index + new_index;
+}
+
#define SSOV(env, ret, arg, len) do { \
int64_t max_pos = INT##len ##_MAX; \
int64_t max_neg = INT##len ##_MIN; \
diff --git a/target-tricore/translate.c b/target-tricore/translate.c
index ddbabc4..d5a9596 100644
--- a/target-tricore/translate.c
+++ b/target-tricore/translate.c
@@ -149,6 +149,15 @@ static void gen_st_2regs_64(TCGv rh, TCGv rl, TCGv
address, DisasContext *ctx)
tcg_temp_free_i64(temp);
}
+static void gen_offset_st_2regs(TCGv rh, TCGv rl, TCGv base, int16_t con,
+ DisasContext *ctx)
+{
+ TCGv temp = tcg_temp_new();
+ tcg_gen_addi_tl(temp, base, con);
+ gen_st_2regs_64(rh, rl, temp, ctx);
+ tcg_temp_free(temp);
+}
+
static void gen_ld_2regs_64(TCGv rh, TCGv rl, TCGv address, DisasContext *ctx)
{
TCGv_i64 temp = tcg_temp_new_i64();
@@ -160,6 +169,35 @@ static void gen_ld_2regs_64(TCGv rh, TCGv rl, TCGv
address, DisasContext *ctx)
tcg_temp_free_i64(temp);
}
+static void gen_offset_ld_2regs(TCGv rh, TCGv rl, TCGv base, int16_t con,
+ DisasContext *ctx)
+{
+ TCGv temp = tcg_temp_new();
+ tcg_gen_addi_tl(temp, base, con);
+ gen_ld_2regs_64(rh, rl, temp, ctx);
+ tcg_temp_free(temp);
+}
+
+static void gen_st_preincr(DisasContext *ctx, TCGv r1, TCGv r2, int16_t off,
+ TCGMemOp mop)
+{
+ TCGv temp = tcg_temp_new();
+ tcg_gen_addi_tl(temp, r2, off);
+ tcg_gen_qemu_st_tl(r1, temp, ctx->mem_idx, mop);
+ tcg_gen_mov_tl(r2, temp);
+ tcg_temp_free(temp);
+}
+
+static void gen_ld_preincr(DisasContext *ctx, TCGv r1, TCGv r2, int16_t off,
+ TCGMemOp mop)
+{
+ TCGv temp = tcg_temp_new();
+ tcg_gen_addi_tl(temp, r2, off);
+ tcg_gen_qemu_ld_tl(r1, temp, ctx->mem_idx, mop);
+ tcg_gen_mov_tl(r2, temp);
+ tcg_temp_free(temp);
+}
+
/* M(EA, word) = (M(EA, word) & ~E[a][63:32]) | (E[a][31:0] & E[a][63:32]); */
static void gen_ldmst(DisasContext *ctx, int ereg, TCGv ea)
{
@@ -1635,6 +1673,612 @@ static void decode_bit_sh_logic2(CPUTriCoreState *env,
DisasContext *ctx)
tcg_temp_free(temp);
}
+/* BO-format */
+
+
+static void decode_bo_addrmode_post_pre_base(CPUTriCoreState *env,
+ DisasContext *ctx)
+{
+ uint32_t op2;
+ uint32_t off10;
+ int32_t r1, r2;
+ TCGv temp;
+
+ r1 = MASK_OP_BO_S1D(ctx->opcode);
+ r2 = MASK_OP_BO_S2(ctx->opcode);
+ off10 = MASK_OP_BO_OFF10_SEXT(ctx->opcode);
+ op2 = MASK_OP_BO_OP2(ctx->opcode);
+
+ switch (op2) {
+ case OPC2_32_BO_CACHEA_WI_SHORTOFF:
+ case OPC2_32_BO_CACHEA_W_SHORTOFF:
+ case OPC2_32_BO_CACHEA_I_SHORTOFF:
+ /* instruction to access the cache */
+ break;
+ case OPC2_32_BO_CACHEA_WI_POSTINC:
+ case OPC2_32_BO_CACHEA_W_POSTINC:
+ case OPC2_32_BO_CACHEA_I_POSTINC:
+ /* instruction to access the cache, but we still need to handle
+ the addressing mode */
+ tcg_gen_addi_tl(cpu_gpr_d[r2], cpu_gpr_d[r2], off10);
+ break;
+ case OPC2_32_BO_CACHEA_WI_PREINC:
+ case OPC2_32_BO_CACHEA_W_PREINC:
+ case OPC2_32_BO_CACHEA_I_PREINC:
+ /* instruction to access the cache, but we still need to handle
+ the addressing mode */
+ tcg_gen_addi_tl(cpu_gpr_d[r2], cpu_gpr_d[r2], off10);
+ break;
+ case OPC2_32_BO_CACHEI_WI_SHORTOFF:
+ case OPC2_32_BO_CACHEI_W_SHORTOFF:
+ /* TODO: Raise illegal opcode trap,
+ if tricore_feature(TRICORE_FEATURE_13) */
+ break;
+ case OPC2_32_BO_CACHEI_W_POSTINC:
+ case OPC2_32_BO_CACHEI_WI_POSTINC:
+ if (!tricore_feature(env, TRICORE_FEATURE_13)) {
+ tcg_gen_addi_tl(cpu_gpr_d[r2], cpu_gpr_d[r2], off10);
+ } /* TODO: else raise illegal opcode trap */
+ break;
+ case OPC2_32_BO_CACHEI_W_PREINC:
+ case OPC2_32_BO_CACHEI_WI_PREINC:
+ if (!tricore_feature(env, TRICORE_FEATURE_13)) {
+ tcg_gen_addi_tl(cpu_gpr_d[r2], cpu_gpr_d[r2], off10);
+ } /* TODO: else raise illegal opcode trap */
+ break;
+ case OPC2_32_BO_ST_A_SHORTOFF:
+ gen_offset_st(ctx, cpu_gpr_a[r1], cpu_gpr_a[r2], off10, MO_LESL);
+ break;
+ case OPC2_32_BO_ST_A_POSTINC:
+ tcg_gen_qemu_st_tl(cpu_gpr_a[r1], cpu_gpr_a[r2], ctx->mem_idx,
+ MO_LESL);
+ tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);
+ break;
+ case OPC2_32_BO_ST_A_PREINC:
+ gen_st_preincr(ctx, cpu_gpr_a[r1], cpu_gpr_a[r2], off10, MO_LESL);
+ break;
+ case OPC2_32_BO_ST_B_SHORTOFF:
+ gen_offset_st(ctx, cpu_gpr_d[r1], cpu_gpr_a[r2], off10, MO_UB);
+ break;
+ case OPC2_32_BO_ST_B_POSTINC:
+ tcg_gen_qemu_st_tl(cpu_gpr_d[r1], cpu_gpr_a[r2], ctx->mem_idx,
+ MO_UB);
+ tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);
+ break;
+ case OPC2_32_BO_ST_B_PREINC:
+ gen_st_preincr(ctx, cpu_gpr_d[r1], cpu_gpr_a[r2], off10, MO_UB);
+ break;
+ case OPC2_32_BO_ST_D_SHORTOFF:
+ gen_offset_st_2regs(cpu_gpr_d[r1+1], cpu_gpr_d[r1], cpu_gpr_a[r2],
+ off10, ctx);
+ break;
+ case OPC2_32_BO_ST_D_POSTINC:
+ gen_st_2regs_64(cpu_gpr_d[r1+1], cpu_gpr_d[r1], cpu_gpr_a[r2], ctx);
+ tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);
+ break;
+ case OPC2_32_BO_ST_D_PREINC:
+ temp = tcg_temp_new();
+ tcg_gen_addi_tl(temp, cpu_gpr_a[r2], off10);
+ gen_st_2regs_64(cpu_gpr_d[r1+1], cpu_gpr_d[r1], temp, ctx);
+ tcg_gen_mov_tl(cpu_gpr_a[r2], temp);
+ tcg_temp_free(temp);
+ break;
+ case OPC2_32_BO_ST_DA_SHORTOFF:
+ gen_offset_st_2regs(cpu_gpr_a[r1+1], cpu_gpr_a[r1], cpu_gpr_a[r2],
+ off10, ctx);
+ break;
+ case OPC2_32_BO_ST_DA_POSTINC:
+ gen_st_2regs_64(cpu_gpr_a[r1+1], cpu_gpr_a[r1], cpu_gpr_a[r2], ctx);
+ tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);
+ break;
+ case OPC2_32_BO_ST_DA_PREINC:
+ temp = tcg_temp_new();
+ tcg_gen_addi_tl(temp, cpu_gpr_a[r2], off10);
+ gen_st_2regs_64(cpu_gpr_a[r1+1], cpu_gpr_a[r1], temp, ctx);
+ tcg_gen_mov_tl(cpu_gpr_a[r2], temp);
+ tcg_temp_free(temp);
+ break;
+ case OPC2_32_BO_ST_H_SHORTOFF:
+ gen_offset_st(ctx, cpu_gpr_d[r1], cpu_gpr_a[r2], off10, MO_LEUW);
+ break;
+ case OPC2_32_BO_ST_H_POSTINC:
+ tcg_gen_qemu_st_tl(cpu_gpr_d[r1], cpu_gpr_a[r2], ctx->mem_idx,
+ MO_LEUW);
+ tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);
+ break;
+ case OPC2_32_BO_ST_H_PREINC:
+ gen_st_preincr(ctx, cpu_gpr_d[r1], cpu_gpr_a[r2], off10, MO_LEUW);
+ break;
+ case OPC2_32_BO_ST_Q_SHORTOFF:
+ temp = tcg_temp_new();
+ tcg_gen_shri_tl(temp, cpu_gpr_d[r1], 16);
+ gen_offset_st(ctx, temp, cpu_gpr_a[r2], off10, MO_LEUW);
+ tcg_temp_free(temp);
+ break;
+ case OPC2_32_BO_ST_Q_POSTINC:
+ temp = tcg_temp_new();
+ tcg_gen_shri_tl(temp, cpu_gpr_d[r1], 16);
+ tcg_gen_qemu_st_tl(temp, cpu_gpr_a[r2], ctx->mem_idx,
+ MO_LEUW);
+ tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);
+ tcg_temp_free(temp);
+ break;
+ case OPC2_32_BO_ST_Q_PREINC:
+ temp = tcg_temp_new();
+ tcg_gen_shri_tl(temp, cpu_gpr_d[r1], 16);
+ gen_st_preincr(ctx, temp, cpu_gpr_a[r2], off10, MO_LEUW);
+ tcg_temp_free(temp);
+ break;
+ case OPC2_32_BO_ST_W_SHORTOFF:
+ gen_offset_st(ctx, cpu_gpr_d[r1], cpu_gpr_a[r2], off10, MO_LEUL);
+ break;
+ case OPC2_32_BO_ST_W_POSTINC:
+ tcg_gen_qemu_st_tl(cpu_gpr_d[r1], cpu_gpr_a[r2], ctx->mem_idx,
+ MO_LEUL);
+ tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);
+ break;
+ case OPC2_32_BO_ST_W_PREINC:
+ gen_st_preincr(ctx, cpu_gpr_d[r1], cpu_gpr_a[r2], off10, MO_LEUL);
+ break;
+ }
+}
+
+static void decode_bo_addrmode_bitreverse_circular(CPUTriCoreState *env,
+ DisasContext *ctx)
+{
+ uint32_t op2;
+ uint32_t off10;
+ int32_t r1, r2;
+ TCGv temp, temp2, temp3;
+
+ r1 = MASK_OP_BO_S1D(ctx->opcode);
+ r2 = MASK_OP_BO_S2(ctx->opcode);
+ off10 = MASK_OP_BO_OFF10_SEXT(ctx->opcode);
+ op2 = MASK_OP_BO_OP2(ctx->opcode);
+
+ temp = tcg_temp_new();
+ temp2 = tcg_temp_new();
+ temp3 = tcg_const_i32(off10);
+
+ tcg_gen_ext16u_tl(temp, cpu_gpr_a[r2+1]);
+ tcg_gen_add_tl(temp2, cpu_gpr_a[r2], temp);
+
+ switch (op2) {
+ case OPC2_32_BO_CACHEA_WI_BR:
+ case OPC2_32_BO_CACHEA_W_BR:
+ case OPC2_32_BO_CACHEA_I_BR:
+ gen_helper_br_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1]);
+ break;
+ case OPC2_32_BO_CACHEA_WI_CIRC:
+ case OPC2_32_BO_CACHEA_W_CIRC:
+ case OPC2_32_BO_CACHEA_I_CIRC:
+ gen_helper_circ_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1], temp3);
+ break;
+ case OPC2_32_BO_ST_A_BR:
+ tcg_gen_qemu_st_tl(cpu_gpr_a[r1], temp2, ctx->mem_idx, MO_LEUL);
+ gen_helper_br_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1]);
+ break;
+ case OPC2_32_BO_ST_A_CIRC:
+ tcg_gen_qemu_st_tl(cpu_gpr_a[r1], temp2, ctx->mem_idx, MO_LEUL);
+ gen_helper_circ_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1], temp3);
+ break;
+ case OPC2_32_BO_ST_B_BR:
+ tcg_gen_qemu_st_tl(cpu_gpr_d[r1], temp2, ctx->mem_idx, MO_UB);
+ gen_helper_br_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1]);
+ break;
+ case OPC2_32_BO_ST_B_CIRC:
+ tcg_gen_qemu_st_tl(cpu_gpr_d[r1], temp2, ctx->mem_idx, MO_UB);
+ gen_helper_circ_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1], temp3);
+ break;
+ case OPC2_32_BO_ST_D_BR:
+ gen_st_2regs_64(cpu_gpr_d[r1+1], cpu_gpr_d[r1], temp2, ctx);
+ gen_helper_br_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1]);
+ break;
+ case OPC2_32_BO_ST_D_CIRC:
+ tcg_gen_qemu_st_tl(cpu_gpr_d[r1], temp2, ctx->mem_idx, MO_LEUL);
+ tcg_gen_shri_tl(temp2, cpu_gpr_a[r2+1], 16);
+ tcg_gen_addi_tl(temp, temp, 4);
+ tcg_gen_rem_tl(temp, temp, temp2);
+ tcg_gen_add_tl(temp2, cpu_gpr_a[r2], temp);
+ tcg_gen_qemu_st_tl(cpu_gpr_d[r1+1], temp2, ctx->mem_idx, MO_LEUL);
+ gen_helper_circ_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1], temp3);
+ break;
+ case OPC2_32_BO_ST_DA_BR:
+ gen_st_2regs_64(cpu_gpr_a[r1+1], cpu_gpr_a[r1], temp2, ctx);
+ gen_helper_br_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1]);
+ break;
+ case OPC2_32_BO_ST_DA_CIRC:
+ tcg_gen_qemu_st_tl(cpu_gpr_a[r1], temp2, ctx->mem_idx, MO_LEUL);
+ tcg_gen_shri_tl(temp2, cpu_gpr_a[r2+1], 16);
+ tcg_gen_addi_tl(temp, temp, 4);
+ tcg_gen_rem_tl(temp, temp, temp2);
+ tcg_gen_add_tl(temp2, cpu_gpr_a[r2], temp);
+ tcg_gen_qemu_st_tl(cpu_gpr_a[r1+1], temp2, ctx->mem_idx, MO_LEUL);
+ gen_helper_circ_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1], temp3);
+ break;
+ case OPC2_32_BO_ST_H_BR:
+ tcg_gen_qemu_st_tl(cpu_gpr_d[r1], temp2, ctx->mem_idx, MO_LEUW);
+ gen_helper_br_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1]);
+ break;
+ case OPC2_32_BO_ST_H_CIRC:
+ tcg_gen_qemu_st_tl(cpu_gpr_d[r1], temp2, ctx->mem_idx, MO_LEUW);
+ gen_helper_circ_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1], temp3);
+ break;
+ case OPC2_32_BO_ST_Q_BR:
+ tcg_gen_shri_tl(temp, cpu_gpr_d[r1], 16);
+ tcg_gen_qemu_st_tl(temp, temp2, ctx->mem_idx, MO_LEUW);
+ gen_helper_br_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1]);
+ break;
+ case OPC2_32_BO_ST_Q_CIRC:
+ tcg_gen_shri_tl(temp, cpu_gpr_d[r1], 16);
+ tcg_gen_qemu_st_tl(temp, temp2, ctx->mem_idx, MO_LEUW);
+ gen_helper_circ_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1], temp3);
+ break;
+ case OPC2_32_BO_ST_W_BR:
+ tcg_gen_qemu_st_tl(cpu_gpr_d[r1], temp2, ctx->mem_idx, MO_LEUL);
+ gen_helper_br_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1]);
+ break;
+ case OPC2_32_BO_ST_W_CIRC:
+ tcg_gen_qemu_st_tl(cpu_gpr_d[r1], temp2, ctx->mem_idx, MO_LEUL);
+ gen_helper_circ_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1], temp3);
+ break;
+ }
+ tcg_temp_free(temp);
+ tcg_temp_free(temp2);
+ tcg_temp_free(temp3);
+}
+
+static void decode_bo_addrmode_ld_post_pre_base(CPUTriCoreState *env,
+ DisasContext *ctx)
+{
+ uint32_t op2;
+ uint32_t off10;
+ int32_t r1, r2;
+ TCGv temp;
+
+ r1 = MASK_OP_BO_S1D(ctx->opcode);
+ r2 = MASK_OP_BO_S2(ctx->opcode);
+ off10 = MASK_OP_BO_OFF10_SEXT(ctx->opcode);
+ op2 = MASK_OP_BO_OP2(ctx->opcode);
+
+ switch (op2) {
+ case OPC2_32_BO_LD_A_SHORTOFF:
+ gen_offset_ld(ctx, cpu_gpr_a[r1], cpu_gpr_a[r2], off10, MO_LEUL);
+ break;
+ case OPC2_32_BO_LD_A_POSTINC:
+ tcg_gen_qemu_ld_tl(cpu_gpr_a[r1], cpu_gpr_a[r2], ctx->mem_idx,
+ MO_LEUL);
+ tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);
+ break;
+ case OPC2_32_BO_LD_A_PREINC:
+ gen_ld_preincr(ctx, cpu_gpr_a[r1], cpu_gpr_a[r2], off10, MO_LEUL);
+ break;
+ case OPC2_32_BO_LD_B_SHORTOFF:
+ gen_offset_ld(ctx, cpu_gpr_d[r1], cpu_gpr_a[r2], off10, MO_SB);
+ break;
+ case OPC2_32_BO_LD_B_POSTINC:
+ tcg_gen_qemu_ld_tl(cpu_gpr_d[r1], cpu_gpr_a[r2], ctx->mem_idx,
+ MO_SB);
+ tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);
+ break;
+ case OPC2_32_BO_LD_B_PREINC:
+ gen_ld_preincr(ctx, cpu_gpr_d[r1], cpu_gpr_a[r2], off10, MO_SB);
+ break;
+ case OPC2_32_BO_LD_BU_SHORTOFF:
+ gen_offset_ld(ctx, cpu_gpr_d[r1], cpu_gpr_a[r2], off10, MO_UB);
+ break;
+ case OPC2_32_BO_LD_BU_POSTINC:
+ tcg_gen_qemu_ld_tl(cpu_gpr_d[r1], cpu_gpr_a[r2], ctx->mem_idx,
+ MO_UB);
+ tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);
+ break;
+ case OPC2_32_BO_LD_BU_PREINC:
+ gen_ld_preincr(ctx, cpu_gpr_d[r1], cpu_gpr_a[r2], off10, MO_SB);
+ break;
+ case OPC2_32_BO_LD_D_SHORTOFF:
+ gen_offset_ld_2regs(cpu_gpr_d[r1+1], cpu_gpr_d[r1], cpu_gpr_a[r2],
+ off10, ctx);
+ break;
+ case OPC2_32_BO_LD_D_POSTINC:
+ gen_ld_2regs_64(cpu_gpr_d[r1+1], cpu_gpr_d[r1], cpu_gpr_a[r2], ctx);
+ tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);
+ break;
+ case OPC2_32_BO_LD_D_PREINC:
+ temp = tcg_temp_new();
+ tcg_gen_addi_tl(temp, cpu_gpr_a[r2], off10);
+ gen_ld_2regs_64(cpu_gpr_d[r1+1], cpu_gpr_d[r1], temp, ctx);
+ tcg_gen_mov_tl(cpu_gpr_a[r2], temp);
+ tcg_temp_free(temp);
+ break;
+ case OPC2_32_BO_LD_DA_SHORTOFF:
+ gen_offset_ld_2regs(cpu_gpr_a[r1+1], cpu_gpr_a[r1], cpu_gpr_a[r2],
+ off10, ctx);
+ break;
+ case OPC2_32_BO_LD_DA_POSTINC:
+ gen_ld_2regs_64(cpu_gpr_a[r1+1], cpu_gpr_a[r1], cpu_gpr_a[r2], ctx);
+ tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);
+ break;
+ case OPC2_32_BO_LD_DA_PREINC:
+ temp = tcg_temp_new();
+ tcg_gen_addi_tl(temp, cpu_gpr_a[r2], off10);
+ gen_ld_2regs_64(cpu_gpr_a[r1+1], cpu_gpr_a[r1], temp, ctx);
+ tcg_gen_mov_tl(cpu_gpr_a[r2], temp);
+ tcg_temp_free(temp);
+ break;
+ case OPC2_32_BO_LD_H_SHORTOFF:
+ gen_offset_ld(ctx, cpu_gpr_d[r1], cpu_gpr_a[r2], off10, MO_LESW);
+ break;
+ case OPC2_32_BO_LD_H_POSTINC:
+ tcg_gen_qemu_ld_tl(cpu_gpr_d[r1], cpu_gpr_a[r2], ctx->mem_idx,
+ MO_LESW);
+ tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);
+ break;
+ case OPC2_32_BO_LD_H_PREINC:
+ gen_ld_preincr(ctx, cpu_gpr_d[r1], cpu_gpr_a[r2], off10, MO_LESW);
+ break;
+ case OPC2_32_BO_LD_HU_SHORTOFF:
+ gen_offset_ld(ctx, cpu_gpr_d[r1], cpu_gpr_a[r2], off10, MO_LEUW);
+ break;
+ case OPC2_32_BO_LD_HU_POSTINC:
+ tcg_gen_qemu_ld_tl(cpu_gpr_d[r1], cpu_gpr_a[r2], ctx->mem_idx,
+ MO_LEUW);
+ tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);
+ break;
+ case OPC2_32_BO_LD_HU_PREINC:
+ gen_ld_preincr(ctx, cpu_gpr_d[r1], cpu_gpr_a[r2], off10, MO_LEUW);
+ break;
+ case OPC2_32_BO_LD_Q_SHORTOFF:
+ gen_offset_ld(ctx, cpu_gpr_d[r1], cpu_gpr_a[r2], off10, MO_LEUW);
+ tcg_gen_shli_tl(cpu_gpr_d[r1], cpu_gpr_d[r1], 16);
+ break;
+ case OPC2_32_BO_LD_Q_POSTINC:
+ tcg_gen_qemu_ld_tl(cpu_gpr_d[r1], cpu_gpr_a[r2], ctx->mem_idx,
+ MO_LEUW);
+ tcg_gen_shli_tl(cpu_gpr_d[r1], cpu_gpr_d[r1], 16);
+ tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);
+ break;
+ case OPC2_32_BO_LD_Q_PREINC:
+ gen_ld_preincr(ctx, cpu_gpr_d[r1], cpu_gpr_a[r2], off10, MO_LEUW);
+ tcg_gen_shli_tl(cpu_gpr_d[r1], cpu_gpr_d[r1], 16);
+ break;
+ case OPC2_32_BO_LD_W_SHORTOFF:
+ gen_offset_ld(ctx, cpu_gpr_d[r1], cpu_gpr_a[r2], off10, MO_LEUL);
+ break;
+ case OPC2_32_BO_LD_W_POSTINC:
+ tcg_gen_qemu_ld_tl(cpu_gpr_d[r1], cpu_gpr_a[r2], ctx->mem_idx,
+ MO_LEUL);
+ tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);
+ break;
+ case OPC2_32_BO_LD_W_PREINC:
+ gen_ld_preincr(ctx, cpu_gpr_d[r1], cpu_gpr_a[r2], off10, MO_LEUL);
+ break;
+ }
+}
+
+static void decode_bo_addrmode_ld_bitreverse_circular(CPUTriCoreState *env,
+ DisasContext *ctx)
+{
+ uint32_t op2;
+ uint32_t off10;
+ int r1, r2;
+
+ TCGv temp, temp2, temp3;
+
+ r1 = MASK_OP_BO_S1D(ctx->opcode);
+ r2 = MASK_OP_BO_S2(ctx->opcode);
+ off10 = MASK_OP_BO_OFF10_SEXT(ctx->opcode);
+ op2 = MASK_OP_BO_OP2(ctx->opcode);
+
+ temp = tcg_temp_new();
+ temp2 = tcg_temp_new();
+ temp3 = tcg_const_i32(off10);
+
+ tcg_gen_ext16u_tl(temp, cpu_gpr_a[r2+1]);
+ tcg_gen_add_tl(temp2, cpu_gpr_a[r2], temp);
+
+
+ switch (op2) {
+ case OPC2_32_BO_LD_A_BR:
+ tcg_gen_qemu_ld_tl(cpu_gpr_a[r1], temp2, ctx->mem_idx, MO_LEUL);
+ gen_helper_br_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1]);
+ break;
+ case OPC2_32_BO_LD_A_CIRC:
+ tcg_gen_qemu_ld_tl(cpu_gpr_a[r1], temp2, ctx->mem_idx, MO_LEUL);
+ gen_helper_circ_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1], temp3);
+ break;
+ case OPC2_32_BO_LD_B_BR:
+ tcg_gen_qemu_ld_tl(cpu_gpr_d[r1], temp2, ctx->mem_idx, MO_SB);
+ gen_helper_br_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1]);
+ break;
+ case OPC2_32_BO_LD_B_CIRC:
+ tcg_gen_qemu_ld_tl(cpu_gpr_d[r1], temp2, ctx->mem_idx, MO_SB);
+ gen_helper_circ_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1], temp3);
+ break;
+ case OPC2_32_BO_LD_BU_BR:
+ tcg_gen_qemu_ld_tl(cpu_gpr_d[r1], temp2, ctx->mem_idx, MO_UB);
+ gen_helper_br_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1]);
+ break;
+ case OPC2_32_BO_LD_BU_CIRC:
+ tcg_gen_qemu_ld_tl(cpu_gpr_d[r1], temp2, ctx->mem_idx, MO_UB);
+ gen_helper_circ_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1], temp3);
+ break;
+ case OPC2_32_BO_LD_D_BR:
+ gen_ld_2regs_64(cpu_gpr_d[r1+1], cpu_gpr_d[r1], temp2, ctx);
+ gen_helper_br_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1]);
+ break;
+ case OPC2_32_BO_LD_D_CIRC:
+ tcg_gen_qemu_ld_tl(cpu_gpr_d[r1], temp2, ctx->mem_idx, MO_LEUL);
+ tcg_gen_shri_tl(temp2, cpu_gpr_a[r2+1], 16);
+ tcg_gen_addi_tl(temp, temp, 4);
+ tcg_gen_rem_tl(temp, temp, temp2);
+ tcg_gen_add_tl(temp2, cpu_gpr_a[r2], temp);
+ tcg_gen_qemu_ld_tl(cpu_gpr_d[r1+1], temp2, ctx->mem_idx, MO_LEUL);
+ gen_helper_circ_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1], temp3);
+ break;
+ case OPC2_32_BO_LD_DA_BR:
+ gen_ld_2regs_64(cpu_gpr_a[r1+1], cpu_gpr_a[r1], temp2, ctx);
+ gen_helper_br_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1]);
+ break;
+ case OPC2_32_BO_LD_DA_CIRC:
+ tcg_gen_qemu_ld_tl(cpu_gpr_a[r1], temp2, ctx->mem_idx, MO_LEUL);
+ tcg_gen_shri_tl(temp2, cpu_gpr_a[r2+1], 16);
+ tcg_gen_addi_tl(temp, temp, 4);
+ tcg_gen_rem_tl(temp, temp, temp2);
+ tcg_gen_add_tl(temp2, cpu_gpr_a[r2], temp);
+ tcg_gen_qemu_ld_tl(cpu_gpr_a[r1+1], temp2, ctx->mem_idx, MO_LEUL);
+ gen_helper_circ_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1], temp3);
+ break;
+ case OPC2_32_BO_LD_H_BR:
+ tcg_gen_qemu_ld_tl(cpu_gpr_d[r1], temp2, ctx->mem_idx, MO_LESW);
+ gen_helper_br_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1]);
+ break;
+ case OPC2_32_BO_LD_H_CIRC:
+ tcg_gen_qemu_ld_tl(cpu_gpr_d[r1], temp2, ctx->mem_idx, MO_LESW);
+ gen_helper_circ_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1], temp3);
+ break;
+ case OPC2_32_BO_LD_HU_BR:
+ tcg_gen_qemu_ld_tl(cpu_gpr_d[r1], temp2, ctx->mem_idx, MO_LEUW);
+ gen_helper_br_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1]);
+ break;
+ case OPC2_32_BO_LD_HU_CIRC:
+ tcg_gen_qemu_ld_tl(cpu_gpr_d[r1], temp2, ctx->mem_idx, MO_LEUW);
+ gen_helper_circ_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1], temp3);
+ break;
+ case OPC2_32_BO_LD_Q_BR:
+ tcg_gen_qemu_ld_tl(cpu_gpr_d[r1], temp2, ctx->mem_idx, MO_LEUW);
+ tcg_gen_shli_tl(cpu_gpr_d[r1], cpu_gpr_d[r1], 16);
+ gen_helper_br_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1]);
+ break;
+ case OPC2_32_BO_LD_Q_CIRC:
+ tcg_gen_qemu_ld_tl(cpu_gpr_d[r1], temp2, ctx->mem_idx, MO_LEUW);
+ tcg_gen_shli_tl(cpu_gpr_d[r1], cpu_gpr_d[r1], 16);
+ gen_helper_circ_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1], temp3);
+ break;
+ case OPC2_32_BO_LD_W_BR:
+ tcg_gen_qemu_ld_tl(cpu_gpr_d[r1], temp2, ctx->mem_idx, MO_LEUL);
+ gen_helper_br_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1]);
+ break;
+ case OPC2_32_BO_LD_W_CIRC:
+ tcg_gen_qemu_ld_tl(cpu_gpr_d[r1], temp2, ctx->mem_idx, MO_LEUL);
+ gen_helper_circ_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1], temp3);
+ break;
+ }
+ tcg_temp_free(temp);
+ tcg_temp_free(temp2);
+ tcg_temp_free(temp3);
+}
+
+static void decode_bo_addrmode_stctx_post_pre_base(CPUTriCoreState *env,
+ DisasContext *ctx)
+{
+ uint32_t op2;
+ uint32_t off10;
+ int r1, r2;
+
+ TCGv temp, temp2;
+
+ r1 = MASK_OP_BO_S1D(ctx->opcode);
+ r2 = MASK_OP_BO_S2(ctx->opcode);
+ off10 = MASK_OP_BO_OFF10_SEXT(ctx->opcode);
+ op2 = MASK_OP_BO_OP2(ctx->opcode);
+
+
+ temp = tcg_temp_new();
+ temp2 = tcg_temp_new();
+
+ switch (op2) {
+ case OPC2_32_BO_LDLCX_SHORTOFF:
+ tcg_gen_addi_tl(temp, cpu_gpr_a[r2], off10);
+ gen_helper_ldlcx(cpu_env, temp);
+ break;
+ case OPC2_32_BO_LDMST_SHORTOFF:
+ tcg_gen_addi_tl(temp, cpu_gpr_a[r2], off10);
+ gen_ldmst(ctx, r1, temp);
+ break;
+ case OPC2_32_BO_LDMST_POSTINC:
+ gen_ldmst(ctx, r1, cpu_gpr_a[r2]);
+ tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);
+ break;
+ case OPC2_32_BO_LDMST_PREINC:
+ tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);
+ gen_ldmst(ctx, r1, cpu_gpr_a[r2]);
+ break;
+ case OPC2_32_BO_LDUCX_SHORTOFF:
+ tcg_gen_addi_tl(temp, cpu_gpr_a[r2], off10);
+ gen_helper_lducx(cpu_env, temp);
+ break;
+ case OPC2_32_BO_LEA_SHORTOFF:
+ tcg_gen_addi_tl(cpu_gpr_a[r1], cpu_gpr_a[r2], off10);
+ break;
+ case OPC2_32_BO_STLCX_SHORTOFF:
+ tcg_gen_addi_tl(temp, cpu_gpr_a[r2], off10);
+ gen_helper_stlcx(cpu_env, temp);
+ break;
+ case OPC2_32_BO_STUCX_SHORTOFF:
+ tcg_gen_addi_tl(temp, cpu_gpr_a[r2], off10);
+ gen_helper_stucx(cpu_env, temp);
+ break;
+ case OPC2_32_BO_SWAP_W_SHORTOFF:
+ tcg_gen_addi_tl(temp, cpu_gpr_a[r2], off10);
+ gen_swap(ctx, r1, temp);
+ break;
+ case OPC2_32_BO_SWAP_W_POSTINC:
+ gen_swap(ctx, r1, cpu_gpr_a[r2]);
+ tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);
+ break;
+ case OPC2_32_BO_SWAP_W_PREINC:
+ tcg_gen_addi_tl(cpu_gpr_a[r2], cpu_gpr_a[r2], off10);
+ gen_swap(ctx, r1, cpu_gpr_a[r2]);
+ break;
+ }
+ tcg_temp_free(temp);
+ tcg_temp_free(temp2);
+}
+
+static void decode_bo_addrmode_ldmst_bitreverse_circular(CPUTriCoreState *env,
+ DisasContext *ctx)
+{
+ uint32_t op2;
+ uint32_t off10;
+ int r1, r2;
+
+ TCGv temp, temp2, temp3;
+
+ r1 = MASK_OP_BO_S1D(ctx->opcode);
+ r2 = MASK_OP_BO_S2(ctx->opcode);
+ off10 = MASK_OP_BO_OFF10_SEXT(ctx->opcode);
+ op2 = MASK_OP_BO_OP2(ctx->opcode);
+
+ temp = tcg_temp_new();
+ temp2 = tcg_temp_new();
+ temp3 = tcg_const_i32(off10);
+
+ tcg_gen_ext16u_tl(temp, cpu_gpr_a[r2+1]);
+ tcg_gen_add_tl(temp2, cpu_gpr_a[r2], temp);
+
+ switch (op2) {
+ case OPC2_32_BO_LDMST_BR:
+ gen_ldmst(ctx, r1, temp2);
+ gen_helper_br_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1]);
+ break;
+ case OPC2_32_BO_LDMST_CIRC:
+ gen_ldmst(ctx, r1, temp2);
+ gen_helper_circ_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1], temp3);
+ break;
+ case OPC2_32_BO_SWAP_W_BR:
+ gen_swap(ctx, r1, temp2);
+ gen_helper_br_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1]);
+ break;
+ case OPC2_32_BO_SWAP_W_CIRC:
+ gen_swap(ctx, r1, temp2);
+ gen_helper_circ_update(cpu_gpr_a[r2+1], cpu_gpr_a[r2+1], temp3);
+ break;
+ }
+ tcg_temp_free(temp);
+ tcg_temp_free(temp2);
+ tcg_temp_free(temp3);
+}
+
static void decode_32Bit_opc(CPUTriCoreState *env, DisasContext *ctx)
{
int op1;
@@ -1742,6 +2386,25 @@ static void decode_32Bit_opc(CPUTriCoreState *env,
DisasContext *ctx)
case OPCM_32_BIT_SH_LOGIC2:
decode_bit_sh_logic2(env, ctx);
break;
+ /* BO Format */
+ case OPCM_32_BO_ADDRMODE_POST_PRE_BASE:
+ decode_bo_addrmode_post_pre_base(env, ctx);
+ break;
+ case OPCM_32_BO_ADDRMODE_BITREVERSE_CIRCULAR:
+ decode_bo_addrmode_bitreverse_circular(env, ctx);
+ break;
+ case OPCM_32_BO_ADDRMODE_LD_POST_PRE_BASE:
+ decode_bo_addrmode_ld_post_pre_base(env, ctx);
+ break;
+ case OPCM_32_BO_ADDRMODE_LD_BITREVERSE_CIRCULAR:
+ decode_bo_addrmode_ld_bitreverse_circular(env, ctx);
+ break;
+ case OPCM_32_BO_ADDRMODE_STCTX_POST_PRE_BASE:
+ decode_bo_addrmode_stctx_post_pre_base(env, ctx);
+ break;
+ case OPCM_32_BO_ADDRMODE_LDMST_BITREVERSE_CIRCULAR:
+ decode_bo_addrmode_ldmst_bitreverse_circular(env, ctx);
+ break;
}
}
diff --git a/target-tricore/tricore-opcodes.h b/target-tricore/tricore-opcodes.h
index 342414f..7e6f33b 100644
--- a/target-tricore/tricore-opcodes.h
+++ b/target-tricore/tricore-opcodes.h
@@ -105,6 +105,8 @@
/* BO Format */
#define MASK_OP_BO_OFF10(op) (MASK_BITS_SHIFT(op, 16, 21) + \
(MASK_BITS_SHIFT(op, 28, 31) << 6))
+#define MASK_OP_BO_OFF10_SEXT(op) (MASK_BITS_SHIFT_SEXT(op, 16, 21) + \
+ (MASK_BITS_SHIFT_SEXT(op, 28, 31) << 6))
#define MASK_OP_BO_OP2(op) MASK_BITS_SHIFT(op, 22, 27)
#define MASK_OP_BO_S2(op) MASK_BITS_SHIFT(op, 12, 15)
#define MASK_OP_BO_S1D(op) MASK_BITS_SHIFT(op, 8, 11)
--
2.1.2
- [Qemu-devel] [PATCH v3 0/5] Add TriCore ABS, ABSB, B, BIT, BO instructions, Bastian Koppelmann, 2014/10/13
- [Qemu-devel] [PATCH v3 1/5] target-tricore: Cleanup and Bugfixes, Bastian Koppelmann, 2014/10/13
- [Qemu-devel] [PATCH v3 2/5] target-tricore: Add instructions of ABS, ABSB opcode format, Bastian Koppelmann, 2014/10/13
- [Qemu-devel] [PATCH v3 3/5] target-tricore: Add instructions of B opcode format, Bastian Koppelmann, 2014/10/13
- [Qemu-devel] [PATCH v3 4/5] target-tricore: Add instructions of BIT opcode format, Bastian Koppelmann, 2014/10/13
- [Qemu-devel] [PATCH v3 5/5] target-tricore: Add instructions of BO opcode format,
Bastian Koppelmann <=
- Re: [Qemu-devel] [PATCH v3 0/5] Add TriCore ABS, ABSB, B, BIT, BO instructions, Bastian Koppelmann, 2014/10/14