From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:52164) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YYx2t-0001JK-HB for qemu-devel@nongnu.org; Fri, 20 Mar 2015 09:33:04 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YYx2o-0000WJ-Jz for qemu-devel@nongnu.org; Fri, 20 Mar 2015 09:33:03 -0400 Received: from mail.uni-paderborn.de ([131.234.142.9]:40955) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YYx2o-0000W0-BE for qemu-devel@nongnu.org; Fri, 20 Mar 2015 09:32:58 -0400 From: Bastian Koppelmann Date: Fri, 20 Mar 2015 14:34:28 +0000 Message-Id: <1426862068-5710-1-git-send-email-kbastian@mail.uni-paderborn.de> Subject: [Qemu-devel] [PATCH] target-tricore: fix DVINIT_HU/BU calculating overflow before result List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org dvinit_hu/bu for ISA v1.3 calculate the higher part of the result, that is needed for the overflow bits, after calculating the overflow bits. Signed-off-by: Bastian Koppelmann --- target-tricore/translate.c | 29 +++++++++++++++++------------ 1 file changed, 17 insertions(+), 12 deletions(-) diff --git a/target-tricore/translate.c b/target-tricore/translate.c index 0b7cf06..d3680c3 100644 --- a/target-tricore/translate.c +++ b/target-tricore/translate.c @@ -6240,7 +6240,7 @@ static void decode_rr_divide(CPUTriCoreState *env, DisasContext *ctx) uint32_t op2; int r1, r2, r3; - TCGv temp, temp2; + TCGv temp, temp2, temp3; op2 = MASK_OP_RR_OP2(ctx->opcode); r3 = MASK_OP_RR_D(ctx->opcode); @@ -6261,14 +6261,17 @@ static void decode_rr_divide(CPUTriCoreState *env, DisasContext *ctx) case OPC2_32_RR_DVINIT_BU: temp = tcg_temp_new(); temp2 = tcg_temp_new(); + temp3 = tcg_temp_new(); + + tcg_gen_shri_tl(temp3, cpu_gpr_d[r1], 8); /* reset av */ tcg_gen_movi_tl(cpu_PSW_AV, 0); if (!tricore_feature(env, TRICORE_FEATURE_131)) { /* overflow = (abs(D[r3+1]) >= abs(D[r2])) */ - tcg_gen_neg_tl(temp, cpu_gpr_d[r3+1]); + tcg_gen_neg_tl(temp, temp3); /* use cpu_PSW_AV to compare against 0 */ - tcg_gen_movcond_tl(TCG_COND_LT, temp, cpu_gpr_d[r3+1], cpu_PSW_AV, - temp, cpu_gpr_d[r3+1]); + tcg_gen_movcond_tl(TCG_COND_LT, temp, temp3, cpu_PSW_AV, + temp, temp3); tcg_gen_neg_tl(temp2, cpu_gpr_d[r2]); tcg_gen_movcond_tl(TCG_COND_LT, temp2, cpu_gpr_d[r2], cpu_PSW_AV, temp2, cpu_gpr_d[r2]); @@ -6281,9 +6284,8 @@ static void decode_rr_divide(CPUTriCoreState *env, DisasContext *ctx) /* sv */ tcg_gen_or_tl(cpu_PSW_SV, cpu_PSW_SV, cpu_PSW_V); /* write result */ - tcg_gen_shri_tl(temp, cpu_gpr_d[r1], 8); tcg_gen_shli_tl(cpu_gpr_d[r3], cpu_gpr_d[r1], 24); - tcg_gen_mov_tl(cpu_gpr_d[r3+1], temp); + tcg_gen_mov_tl(cpu_gpr_d[r3+1], temp3); tcg_temp_free(temp); tcg_temp_free(temp2); @@ -6295,14 +6297,17 @@ static void decode_rr_divide(CPUTriCoreState *env, DisasContext *ctx) case OPC2_32_RR_DVINIT_HU: temp = tcg_temp_new(); temp2 = tcg_temp_new(); + temp3 = tcg_temp_new(); + + tcg_gen_shri_tl(temp3, cpu_gpr_d[r1], 16); /* reset av */ tcg_gen_movi_tl(cpu_PSW_AV, 0); if (!tricore_feature(env, TRICORE_FEATURE_131)) { /* overflow = (abs(D[r3+1]) >= abs(D[r2])) */ - tcg_gen_neg_tl(temp, cpu_gpr_d[r3+1]); + tcg_gen_neg_tl(temp, temp3); /* use cpu_PSW_AV to compare against 0 */ - tcg_gen_movcond_tl(TCG_COND_LT, temp, cpu_gpr_d[r3+1], cpu_PSW_AV, - temp, cpu_gpr_d[r3+1]); + tcg_gen_movcond_tl(TCG_COND_LT, temp, temp3, cpu_PSW_AV, + temp, temp3); tcg_gen_neg_tl(temp2, cpu_gpr_d[r2]); tcg_gen_movcond_tl(TCG_COND_LT, temp2, cpu_gpr_d[r2], cpu_PSW_AV, temp2, cpu_gpr_d[r2]); @@ -6315,11 +6320,11 @@ static void decode_rr_divide(CPUTriCoreState *env, DisasContext *ctx) /* sv */ tcg_gen_or_tl(cpu_PSW_SV, cpu_PSW_SV, cpu_PSW_V); /* write result */ - tcg_gen_mov_tl(temp, cpu_gpr_d[r1]); - tcg_gen_shri_tl(cpu_gpr_d[r3+1], temp, 16); - tcg_gen_shli_tl(cpu_gpr_d[r3], temp, 16); + tcg_gen_mov_tl(cpu_gpr_d[r3+1], temp3); + tcg_gen_shli_tl(cpu_gpr_d[r3], cpu_gpr_d[r1], 16); tcg_temp_free(temp); tcg_temp_free(temp2); + tcg_temp_free(temp3); break; case OPC2_32_RR_DVINIT: temp = tcg_temp_new(); -- 2.3.3