mirror of https://github.com/xemu-project/xemu.git
target-s390: Convert CONVERT FROM FIXED
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
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68c8bd93cc
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683bb9a888
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@ -134,57 +134,6 @@ uint32_t set_cc_nz_f128(float128 v)
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}
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}
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/* convert 32-bit int to 64-bit float */
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void HELPER(cdfbr)(CPUS390XState *env, uint32_t f1, int32_t v2)
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{
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HELPER_LOG("%s: converting %d to f%d\n", __func__, v2, f1);
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env->fregs[f1].d = int32_to_float64(v2, &env->fpu_status);
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}
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/* convert 32-bit int to 128-bit float */
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void HELPER(cxfbr)(CPUS390XState *env, uint32_t f1, int32_t v2)
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{
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CPU_QuadU v1;
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v1.q = int32_to_float128(v2, &env->fpu_status);
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env->fregs[f1].ll = v1.ll.upper;
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env->fregs[f1 + 2].ll = v1.ll.lower;
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}
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/* convert 64-bit int to 32-bit float */
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void HELPER(cegbr)(CPUS390XState *env, uint32_t f1, int64_t v2)
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{
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HELPER_LOG("%s: converting %ld to f%d\n", __func__, v2, f1);
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env->fregs[f1].l.upper = int64_to_float32(v2, &env->fpu_status);
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}
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/* convert 64-bit int to 64-bit float */
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void HELPER(cdgbr)(CPUS390XState *env, uint32_t f1, int64_t v2)
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{
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HELPER_LOG("%s: converting %ld to f%d\n", __func__, v2, f1);
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env->fregs[f1].d = int64_to_float64(v2, &env->fpu_status);
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}
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/* convert 64-bit int to 128-bit float */
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void HELPER(cxgbr)(CPUS390XState *env, uint32_t f1, int64_t v2)
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{
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CPU_QuadU x1;
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x1.q = int64_to_float128(v2, &env->fpu_status);
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HELPER_LOG("%s: converted %ld to 0x%lx and 0x%lx\n", __func__, v2,
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x1.ll.upper, x1.ll.lower);
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env->fregs[f1].ll = x1.ll.upper;
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env->fregs[f1 + 2].ll = x1.ll.lower;
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}
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/* convert 32-bit int to 32-bit float */
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void HELPER(cefbr)(CPUS390XState *env, uint32_t f1, int32_t v2)
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{
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env->fregs[f1].l.upper = int32_to_float32(v2, &env->fpu_status);
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HELPER_LOG("%s: converting %d to 0x%d in f%d\n", __func__, v2,
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env->fregs[f1].l.upper, f1);
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}
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/* 32-bit FP addition */
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uint64_t HELPER(aeb)(CPUS390XState *env, uint64_t f1, uint64_t f2)
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{
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@ -416,6 +365,36 @@ static int swap_round_mode(CPUS390XState *env, int m3)
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return ret;
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}
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/* convert 64-bit int to 32-bit float */
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uint64_t HELPER(cegb)(CPUS390XState *env, int64_t v2, uint32_t m3)
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{
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int hold = swap_round_mode(env, m3);
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float32 ret = int64_to_float32(v2, &env->fpu_status);
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set_float_rounding_mode(hold, &env->fpu_status);
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handle_exceptions(env, GETPC());
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return ret;
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}
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/* convert 64-bit int to 64-bit float */
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uint64_t HELPER(cdgb)(CPUS390XState *env, int64_t v2, uint32_t m3)
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{
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int hold = swap_round_mode(env, m3);
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float64 ret = int64_to_float64(v2, &env->fpu_status);
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set_float_rounding_mode(hold, &env->fpu_status);
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handle_exceptions(env, GETPC());
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return ret;
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}
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/* convert 64-bit int to 128-bit float */
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uint64_t HELPER(cxgb)(CPUS390XState *env, int64_t v2, uint32_t m3)
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{
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int hold = swap_round_mode(env, m3);
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float128 ret = int64_to_float128(v2, &env->fpu_status);
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set_float_rounding_mode(hold, &env->fpu_status);
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handle_exceptions(env, GETPC());
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return RET128(ret);
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}
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/* convert 32-bit float to 64-bit int */
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uint64_t HELPER(cgeb)(CPUS390XState *env, uint64_t v2, uint32_t m3)
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{
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@ -30,12 +30,9 @@ DEF_HELPER_4(stam, void, env, i32, i64, i32)
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DEF_HELPER_4(lam, void, env, i32, i64, i32)
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DEF_HELPER_4(mvcle, i32, env, i32, i64, i32)
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DEF_HELPER_4(clcle, i32, env, i32, i64, i32)
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DEF_HELPER_3(cefbr, void, env, i32, s32)
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DEF_HELPER_3(cdfbr, void, env, i32, s32)
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DEF_HELPER_3(cxfbr, void, env, i32, s32)
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DEF_HELPER_3(cegbr, void, env, i32, s64)
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DEF_HELPER_3(cdgbr, void, env, i32, s64)
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DEF_HELPER_3(cxgbr, void, env, i32, s64)
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DEF_HELPER_3(cegb, i64, env, s64, i32)
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DEF_HELPER_3(cdgb, i64, env, s64, i32)
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DEF_HELPER_3(cxgb, i64, env, s64, i32)
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DEF_HELPER_3(aeb, i64, env, i64, i64)
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DEF_HELPER_3(adb, i64, env, i64, i64)
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DEF_HELPER_5(axb, i64, env, i64, i64, i64, i64)
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@ -170,6 +170,13 @@
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C(0xb3a8, CGEBR, RRF_e, Z, 0, e2, r1, 0, cgeb, 0)
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C(0xb3a9, CGDBR, RRF_e, Z, 0, f2_o, r1, 0, cgdb, 0)
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C(0xb3aa, CGXBR, RRF_e, Z, 0, x2_o, r1, 0, cgxb, 0)
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/* CONVERT FROM FIXED */
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C(0xb394, CEFBR, RRF_e, Z, 0, r2_32s, new, e1, cegb, 0)
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C(0xb395, CDFBR, RRF_e, Z, 0, r2_32s, f1, 0, cdgb, 0)
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C(0xb396, CXFBR, RRF_e, Z, 0, r2_32s, x1, 0, cxgb, 0)
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C(0xb3a4, CEGBR, RRF_e, Z, 0, r2_o, new, e1, cegb, 0)
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C(0xb3a5, CDGBR, RRF_e, Z, 0, r2_o, f1, 0, cdgb, 0)
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C(0xb3a6, CXGBR, RRF_e, Z, 0, r2_o, x1, 0, cxgb, 0)
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/* DIVIDE */
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C(0x1d00, DR, RR_a, Z, r1_D32, r2_32s, new_P, r1_P32, divs32, 0)
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@ -1381,8 +1381,7 @@ static void disas_b2(CPUS390XState *env, DisasContext *s, int op,
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static void disas_b3(CPUS390XState *env, DisasContext *s, int op, int m3,
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int r1, int r2)
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{
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TCGv_i64 tmp;
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TCGv_i32 tmp32_1, tmp32_2;
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TCGv_i32 tmp32_1;
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LOG_DISAS("disas_b3: op 0x%x m3 0x%x r1 %d r2 %d\n", op, m3, r1, r2);
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#define FP_HELPER(i) \
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tmp32_1 = tcg_const_i32(r1); \
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@ -1405,51 +1404,6 @@ static void disas_b3(CPUS390XState *env, DisasContext *s, int op, int m3,
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tcg_gen_st_i32(tmp32_1, cpu_env, offsetof(CPUS390XState, fpc));
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tcg_temp_free_i32(tmp32_1);
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break;
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case 0x94: /* CEFBR R1,R2 [RRE] */
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case 0x95: /* CDFBR R1,R2 [RRE] */
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case 0x96: /* CXFBR R1,R2 [RRE] */
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tmp32_1 = tcg_const_i32(r1);
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tmp32_2 = load_reg32(r2);
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switch (op) {
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case 0x94:
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gen_helper_cefbr(cpu_env, tmp32_1, tmp32_2);
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break;
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case 0x95:
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gen_helper_cdfbr(cpu_env, tmp32_1, tmp32_2);
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break;
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case 0x96:
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gen_helper_cxfbr(cpu_env, tmp32_1, tmp32_2);
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break;
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default:
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tcg_abort();
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}
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tcg_temp_free_i32(tmp32_1);
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tcg_temp_free_i32(tmp32_2);
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break;
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case 0xa4: /* CEGBR R1,R2 [RRE] */
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case 0xa5: /* CDGBR R1,R2 [RRE] */
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tmp32_1 = tcg_const_i32(r1);
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tmp = load_reg(r2);
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switch (op) {
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case 0xa4:
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gen_helper_cegbr(cpu_env, tmp32_1, tmp);
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break;
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case 0xa5:
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gen_helper_cdgbr(cpu_env, tmp32_1, tmp);
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break;
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default:
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tcg_abort();
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}
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tcg_temp_free_i32(tmp32_1);
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tcg_temp_free_i64(tmp);
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break;
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case 0xa6: /* CXGBR R1,R2 [RRE] */
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tmp32_1 = tcg_const_i32(r1);
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tmp = load_reg(r2);
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gen_helper_cxgbr(cpu_env, tmp32_1, tmp);
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tcg_temp_free_i32(tmp32_1);
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tcg_temp_free_i64(tmp);
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break;
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default:
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LOG_DISAS("illegal b3 operation 0x%x\n", op);
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gen_illegal_opcode(s);
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@ -2144,6 +2098,31 @@ static ExitStatus op_cgxb(DisasContext *s, DisasOps *o)
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return NO_EXIT;
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}
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static ExitStatus op_cegb(DisasContext *s, DisasOps *o)
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{
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TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
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gen_helper_cegb(o->out, cpu_env, o->in2, m3);
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tcg_temp_free_i32(m3);
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return NO_EXIT;
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}
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static ExitStatus op_cdgb(DisasContext *s, DisasOps *o)
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{
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TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
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gen_helper_cdgb(o->out, cpu_env, o->in2, m3);
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tcg_temp_free_i32(m3);
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return NO_EXIT;
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}
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static ExitStatus op_cxgb(DisasContext *s, DisasOps *o)
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{
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TCGv_i32 m3 = tcg_const_i32(get_field(s->fields, m3));
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gen_helper_cxgb(o->out, cpu_env, o->in2, m3);
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tcg_temp_free_i32(m3);
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return_low128(o->out2);
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return NO_EXIT;
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}
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static ExitStatus op_clc(DisasContext *s, DisasOps *o)
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{
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int l = get_field(s->fields, l1);
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