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authorRichard Henderson <rth@twiddle.net>2014-03-19 09:04:04 -0700
committerRichard Henderson <rth@twiddle.net>2014-04-17 11:47:40 -0700
commit5238c88657d751e3acf3e953a9b11f5f24262f75 (patch)
tree5dff01f20899796247b519ed241cce8bf21188c4 /target-alpha
parent67debe3ae5fe060355d9e9ef34df6ee1c54f413c (diff)
downloadqemu-arm-5238c88657d751e3acf3e953a9b11f5f24262f75.tar.gz
target-alpha: Introduce REQUIRE_TB_FLAG
The methods by which we check for cpu features varied wildly across the function. Using a nice macro cleans this up. Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'target-alpha')
-rw-r--r--target-alpha/translate.c317
1 files changed, 133 insertions, 184 deletions
diff --git a/target-alpha/translate.c b/target-alpha/translate.c
index 29dffb7409..6ce4207adb 100644
--- a/target-alpha/translate.c
+++ b/target-alpha/translate.c
@@ -1765,6 +1765,13 @@ static ExitStatus gen_mtpr(DisasContext *ctx, int rb, int regno)
}
#endif /* !USER_ONLY*/
+#define REQUIRE_TB_FLAG(FLAG) \
+ do { \
+ if ((ctx->tb->flags & (FLAG)) == 0) { \
+ goto invalid_opc; \
+ } \
+ } while (0)
+
static ExitStatus translate_one(DisasContext *ctx, uint32_t insn)
{
uint32_t palcode;
@@ -1849,28 +1856,26 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn)
break;
case 0x0A:
/* LDBU */
- if (ctx->tb->flags & TB_FLAGS_AMASK_BWX) {
- gen_load_mem(ctx, &tcg_gen_qemu_ld8u, ra, rb, disp16, 0, 0);
- break;
- }
- goto invalid_opc;
+ REQUIRE_TB_FLAG(TB_FLAGS_AMASK_BWX);
+ gen_load_mem(ctx, &tcg_gen_qemu_ld8u, ra, rb, disp16, 0, 0);
+ break;
case 0x0B:
/* LDQ_U */
gen_load_mem(ctx, &tcg_gen_qemu_ld64, ra, rb, disp16, 0, 1);
break;
case 0x0C:
/* LDWU */
- if (ctx->tb->flags & TB_FLAGS_AMASK_BWX) {
- gen_load_mem(ctx, &tcg_gen_qemu_ld16u, ra, rb, disp16, 0, 0);
- break;
- }
- goto invalid_opc;
+ REQUIRE_TB_FLAG(TB_FLAGS_AMASK_BWX);
+ gen_load_mem(ctx, &tcg_gen_qemu_ld16u, ra, rb, disp16, 0, 0);
+ break;
case 0x0D:
/* STW */
+ REQUIRE_TB_FLAG(TB_FLAGS_AMASK_BWX);
gen_store_mem(ctx, &tcg_gen_qemu_st16, ra, rb, disp16, 0, 0);
break;
case 0x0E:
/* STB */
+ REQUIRE_TB_FLAG(TB_FLAGS_AMASK_BWX);
gen_store_mem(ctx, &tcg_gen_qemu_st8, ra, rb, disp16, 0, 0);
break;
case 0x0F:
@@ -2535,12 +2540,10 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn)
}
break;
case 0x14:
+ REQUIRE_TB_FLAG(TB_FLAGS_AMASK_FIX);
switch (fpfn) { /* fn11 & 0x3F */
case 0x04:
/* ITOFS */
- if ((ctx->tb->flags & TB_FLAGS_AMASK_FIX) == 0) {
- goto invalid_opc;
- }
if (likely(rc != 31)) {
if (ra != 31) {
TCGv_i32 tmp = tcg_temp_new_i32();
@@ -2553,23 +2556,14 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn)
break;
case 0x0A:
/* SQRTF */
- if (ctx->tb->flags & TB_FLAGS_AMASK_FIX) {
- gen_fsqrtf(rb, rc);
- break;
- }
- goto invalid_opc;
+ gen_fsqrtf(rb, rc);
+ break;
case 0x0B:
/* SQRTS */
- if (ctx->tb->flags & TB_FLAGS_AMASK_FIX) {
- gen_fsqrts(ctx, rb, rc, fn11);
- break;
- }
- goto invalid_opc;
+ gen_fsqrts(ctx, rb, rc, fn11);
+ break;
case 0x14:
/* ITOFF */
- if ((ctx->tb->flags & TB_FLAGS_AMASK_FIX) == 0) {
- goto invalid_opc;
- }
if (likely(rc != 31)) {
if (ra != 31) {
TCGv_i32 tmp = tcg_temp_new_i32();
@@ -2582,9 +2576,6 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn)
break;
case 0x24:
/* ITOFT */
- if ((ctx->tb->flags & TB_FLAGS_AMASK_FIX) == 0) {
- goto invalid_opc;
- }
if (likely(rc != 31)) {
if (ra != 31) {
tcg_gen_mov_i64(cpu_fir[rc], cpu_ir[ra]);
@@ -2595,18 +2586,12 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn)
break;
case 0x2A:
/* SQRTG */
- if (ctx->tb->flags & TB_FLAGS_AMASK_FIX) {
- gen_fsqrtg(rb, rc);
- break;
- }
- goto invalid_opc;
+ gen_fsqrtg(rb, rc);
+ break;
case 0x02B:
/* SQRTT */
- if (ctx->tb->flags & TB_FLAGS_AMASK_FIX) {
- gen_fsqrtt(ctx, rb, rc, fn11);
- break;
- }
- goto invalid_opc;
+ gen_fsqrtt(ctx, rb, rc, fn11);
+ break;
default:
goto invalid_opc;
}
@@ -2918,11 +2903,11 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn)
case 0x19:
/* HW_MFPR (PALcode) */
#ifndef CONFIG_USER_ONLY
- if (ctx->tb->flags & TB_FLAGS_PAL_MODE) {
- return gen_mfpr(ra, insn & 0xffff);
- }
-#endif
+ REQUIRE_TB_FLAG(TB_FLAGS_PAL_MODE);
+ return gen_mfpr(ra, insn & 0xffff);
+#else
goto invalid_opc;
+#endif
case 0x1A:
/* JMP, JSR, RET, JSR_COROUTINE. These only differ by the branch
prediction stack action, which of course we don't implement. */
@@ -2939,7 +2924,8 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn)
case 0x1B:
/* HW_LD (PALcode) */
#ifndef CONFIG_USER_ONLY
- if (ctx->tb->flags & TB_FLAGS_PAL_MODE) {
+ REQUIRE_TB_FLAG(TB_FLAGS_PAL_MODE);
+ {
TCGv addr;
if (ra == 31) {
@@ -3016,15 +3002,14 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn)
tcg_temp_free(addr);
break;
}
-#endif
+#else
goto invalid_opc;
+#endif
case 0x1C:
switch (fn7) {
case 0x00:
/* SEXTB */
- if ((ctx->tb->flags & TB_FLAGS_AMASK_BWX) == 0) {
- goto invalid_opc;
- }
+ REQUIRE_TB_FLAG(TB_FLAGS_AMASK_BWX);
if (likely(rc != 31)) {
if (islit) {
tcg_gen_movi_i64(cpu_ir[rc], (int64_t)((int8_t)lit));
@@ -3035,164 +3020,128 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn)
break;
case 0x01:
/* SEXTW */
- if (ctx->tb->flags & TB_FLAGS_AMASK_BWX) {
- if (likely(rc != 31)) {
- if (islit) {
- tcg_gen_movi_i64(cpu_ir[rc], (int64_t)((int16_t)lit));
- } else {
- tcg_gen_ext16s_i64(cpu_ir[rc], cpu_ir[rb]);
- }
+ REQUIRE_TB_FLAG(TB_FLAGS_AMASK_BWX);
+ if (likely(rc != 31)) {
+ if (islit) {
+ tcg_gen_movi_i64(cpu_ir[rc], (int64_t)((int16_t)lit));
+ } else {
+ tcg_gen_ext16s_i64(cpu_ir[rc], cpu_ir[rb]);
}
- break;
}
- goto invalid_opc;
+ break;
case 0x30:
/* CTPOP */
- if (ctx->tb->flags & TB_FLAGS_AMASK_CIX) {
- if (likely(rc != 31)) {
- if (islit) {
- tcg_gen_movi_i64(cpu_ir[rc], ctpop64(lit));
- } else {
- gen_helper_ctpop(cpu_ir[rc], cpu_ir[rb]);
- }
+ REQUIRE_TB_FLAG(TB_FLAGS_AMASK_CIX);
+ if (likely(rc != 31)) {
+ if (islit) {
+ tcg_gen_movi_i64(cpu_ir[rc], ctpop64(lit));
+ } else {
+ gen_helper_ctpop(cpu_ir[rc], cpu_ir[rb]);
}
- break;
}
- goto invalid_opc;
+ break;
case 0x31:
/* PERR */
- if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) {
- gen_perr(ra, rb, rc, islit, lit);
- break;
- }
- goto invalid_opc;
+ REQUIRE_TB_FLAG(TB_FLAGS_AMASK_MVI);
+ gen_perr(ra, rb, rc, islit, lit);
+ break;
case 0x32:
/* CTLZ */
- if (ctx->tb->flags & TB_FLAGS_AMASK_CIX) {
- if (likely(rc != 31)) {
- if (islit) {
- tcg_gen_movi_i64(cpu_ir[rc], clz64(lit));
- } else {
- gen_helper_ctlz(cpu_ir[rc], cpu_ir[rb]);
- }
+ REQUIRE_TB_FLAG(TB_FLAGS_AMASK_CIX);
+ if (likely(rc != 31)) {
+ if (islit) {
+ tcg_gen_movi_i64(cpu_ir[rc], clz64(lit));
+ } else {
+ gen_helper_ctlz(cpu_ir[rc], cpu_ir[rb]);
}
- break;
}
- goto invalid_opc;
+ break;
case 0x33:
/* CTTZ */
- if (ctx->tb->flags & TB_FLAGS_AMASK_CIX) {
- if (likely(rc != 31)) {
- if (islit) {
- tcg_gen_movi_i64(cpu_ir[rc], ctz64(lit));
- } else {
- gen_helper_cttz(cpu_ir[rc], cpu_ir[rb]);
- }
+ REQUIRE_TB_FLAG(TB_FLAGS_AMASK_CIX);
+ if (likely(rc != 31)) {
+ if (islit) {
+ tcg_gen_movi_i64(cpu_ir[rc], ctz64(lit));
+ } else {
+ gen_helper_cttz(cpu_ir[rc], cpu_ir[rb]);
}
- break;
}
- goto invalid_opc;
+ break;
case 0x34:
/* UNPKBW */
- if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) {
- if (real_islit || ra != 31) {
- goto invalid_opc;
- }
- gen_unpkbw(rb, rc);
- break;
+ REQUIRE_TB_FLAG(TB_FLAGS_AMASK_MVI);
+ if (real_islit || ra != 31) {
+ goto invalid_opc;
}
- goto invalid_opc;
+ gen_unpkbw(rb, rc);
+ break;
case 0x35:
/* UNPKBL */
- if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) {
- if (real_islit || ra != 31) {
- goto invalid_opc;
- }
- gen_unpkbl(rb, rc);
- break;
+ REQUIRE_TB_FLAG(TB_FLAGS_AMASK_MVI);
+ if (real_islit || ra != 31) {
+ goto invalid_opc;
}
- goto invalid_opc;
+ gen_unpkbl(rb, rc);
+ break;
case 0x36:
/* PKWB */
- if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) {
- if (real_islit || ra != 31) {
- goto invalid_opc;
- }
- gen_pkwb(rb, rc);
- break;
+ REQUIRE_TB_FLAG(TB_FLAGS_AMASK_MVI);
+ if (real_islit || ra != 31) {
+ goto invalid_opc;
}
- goto invalid_opc;
+ gen_pkwb(rb, rc);
+ break;
case 0x37:
/* PKLB */
- if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) {
- if (real_islit || ra != 31) {
- goto invalid_opc;
- }
- gen_pklb(rb, rc);
- break;
+ REQUIRE_TB_FLAG(TB_FLAGS_AMASK_MVI);
+ if (real_islit || ra != 31) {
+ goto invalid_opc;
}
- goto invalid_opc;
+ gen_pklb(rb, rc);
+ break;
case 0x38:
/* MINSB8 */
- if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) {
- gen_minsb8(ra, rb, rc, islit, lit);
- break;
- }
- goto invalid_opc;
+ REQUIRE_TB_FLAG(TB_FLAGS_AMASK_MVI);
+ gen_minsb8(ra, rb, rc, islit, lit);
+ break;
case 0x39:
/* MINSW4 */
- if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) {
- gen_minsw4(ra, rb, rc, islit, lit);
- break;
- }
- goto invalid_opc;
+ REQUIRE_TB_FLAG(TB_FLAGS_AMASK_MVI);
+ gen_minsw4(ra, rb, rc, islit, lit);
+ break;
case 0x3A:
/* MINUB8 */
- if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) {
- gen_minub8(ra, rb, rc, islit, lit);
- break;
- }
- goto invalid_opc;
+ REQUIRE_TB_FLAG(TB_FLAGS_AMASK_MVI);
+ gen_minub8(ra, rb, rc, islit, lit);
+ break;
case 0x3B:
/* MINUW4 */
- if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) {
- gen_minuw4(ra, rb, rc, islit, lit);
- break;
- }
- goto invalid_opc;
+ REQUIRE_TB_FLAG(TB_FLAGS_AMASK_MVI);
+ gen_minuw4(ra, rb, rc, islit, lit);
+ break;
case 0x3C:
/* MAXUB8 */
- if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) {
- gen_maxub8(ra, rb, rc, islit, lit);
- break;
- }
- goto invalid_opc;
+ REQUIRE_TB_FLAG(TB_FLAGS_AMASK_MVI);
+ gen_maxub8(ra, rb, rc, islit, lit);
+ break;
case 0x3D:
/* MAXUW4 */
- if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) {
- gen_maxuw4(ra, rb, rc, islit, lit);
- break;
- }
- goto invalid_opc;
+ REQUIRE_TB_FLAG(TB_FLAGS_AMASK_MVI);
+ gen_maxuw4(ra, rb, rc, islit, lit);
+ break;
case 0x3E:
/* MAXSB8 */
- if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) {
- gen_maxsb8(ra, rb, rc, islit, lit);
- break;
- }
- goto invalid_opc;
+ REQUIRE_TB_FLAG(TB_FLAGS_AMASK_MVI);
+ gen_maxsb8(ra, rb, rc, islit, lit);
+ break;
case 0x3F:
/* MAXSW4 */
- if (ctx->tb->flags & TB_FLAGS_AMASK_MVI) {
- gen_maxsw4(ra, rb, rc, islit, lit);
- break;
- }
- goto invalid_opc;
+ REQUIRE_TB_FLAG(TB_FLAGS_AMASK_MVI);
+ gen_maxsw4(ra, rb, rc, islit, lit);
+ break;
case 0x70:
/* FTOIT */
- if ((ctx->tb->flags & TB_FLAGS_AMASK_FIX) == 0) {
- goto invalid_opc;
- }
+ REQUIRE_TB_FLAG(TB_FLAGS_AMASK_FIX);
if (likely(rc != 31)) {
if (ra != 31) {
tcg_gen_mov_i64(cpu_ir[rc], cpu_fir[ra]);
@@ -3203,9 +3152,7 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn)
break;
case 0x78:
/* FTOIS */
- if ((ctx->tb->flags & TB_FLAGS_AMASK_FIX) == 0) {
- goto invalid_opc;
- }
+ REQUIRE_TB_FLAG(TB_FLAGS_AMASK_FIX);
if (rc != 31) {
TCGv_i32 tmp1 = tcg_temp_new_i32();
if (ra != 31) {
@@ -3226,35 +3173,36 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn)
case 0x1D:
/* HW_MTPR (PALcode) */
#ifndef CONFIG_USER_ONLY
- if (ctx->tb->flags & TB_FLAGS_PAL_MODE) {
- return gen_mtpr(ctx, rb, insn & 0xffff);
- }
-#endif
+ REQUIRE_TB_FLAG(TB_FLAGS_PAL_MODE);
+ return gen_mtpr(ctx, rb, insn & 0xffff);
+#else
goto invalid_opc;
+#endif
case 0x1E:
/* HW_RET (PALcode) */
#ifndef CONFIG_USER_ONLY
- if (ctx->tb->flags & TB_FLAGS_PAL_MODE) {
- if (rb == 31) {
- /* Pre-EV6 CPUs interpreted this as HW_REI, loading the return
- address from EXC_ADDR. This turns out to be useful for our
- emulation PALcode, so continue to accept it. */
- TCGv tmp = tcg_temp_new();
- tcg_gen_ld_i64(tmp, cpu_env, offsetof(CPUAlphaState, exc_addr));
- gen_helper_hw_ret(cpu_env, tmp);
- tcg_temp_free(tmp);
- } else {
- gen_helper_hw_ret(cpu_env, cpu_ir[rb]);
- }
- ret = EXIT_PC_UPDATED;
- break;
+ REQUIRE_TB_FLAG(TB_FLAGS_PAL_MODE);
+ if (rb == 31) {
+ /* Pre-EV6 CPUs interpreted this as HW_REI, loading the return
+ address from EXC_ADDR. This turns out to be useful for our
+ emulation PALcode, so continue to accept it. */
+ TCGv tmp = tcg_temp_new();
+ tcg_gen_ld_i64(tmp, cpu_env, offsetof(CPUAlphaState, exc_addr));
+ gen_helper_hw_ret(cpu_env, tmp);
+ tcg_temp_free(tmp);
+ } else {
+ gen_helper_hw_ret(cpu_env, cpu_ir[rb]);
}
-#endif
+ ret = EXIT_PC_UPDATED;
+ break;
+#else
goto invalid_opc;
+#endif
case 0x1F:
/* HW_ST (PALcode) */
#ifndef CONFIG_USER_ONLY
- if (ctx->tb->flags & TB_FLAGS_PAL_MODE) {
+ REQUIRE_TB_FLAG(TB_FLAGS_PAL_MODE);
+ {
TCGv addr, val;
addr = tcg_temp_new();
if (rb != 31) {
@@ -3328,8 +3276,9 @@ static ExitStatus translate_one(DisasContext *ctx, uint32_t insn)
tcg_temp_free(addr);
break;
}
-#endif
+#else
goto invalid_opc;
+#endif
case 0x20:
/* LDF */
gen_load_mem(ctx, &gen_qemu_ldf, ra, rb, disp16, 1, 0);