From 9b686843a0d88d78553aeea4cd1b976a58db1863 Mon Sep 17 00:00:00 2001
From: ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Thu, 29 May 2008 18:28:07 +0000
Subject: [PATCH] Fix truncate/extend reversal in MIPS DIV{, U} handling, by
Richard Sandiford.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4620 c046a42c-6fe2-441c-8c8c-71466251a162
---
target-mips/translate.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/target-mips/translate.c b/target-mips/translate.c
index fefa2c2b44..d6239a5f57 100644
--- a/target-mips/translate.c
+++ b/target-mips/translate.c
@@ -1906,12 +1906,12 @@ static void gen_muldiv (DisasContext *ctx, uint32_t opc,
TCGv r_tmp2 = new_tmp();
TCGv r_tmp3 = new_tmp();
- tcg_gen_ext_i32_tl(r_tmp1, cpu_T[0]);
- tcg_gen_ext_i32_tl(r_tmp2, cpu_T[1]);
+ tcg_gen_trunc_tl_i32(r_tmp1, cpu_T[0]);
+ tcg_gen_trunc_tl_i32(r_tmp2, cpu_T[1]);
tcg_gen_div_i32(r_tmp3, r_tmp1, r_tmp2);
tcg_gen_rem_i32(r_tmp1, r_tmp1, r_tmp2);
- tcg_gen_trunc_tl_i32(cpu_T[0], r_tmp3);
- tcg_gen_trunc_tl_i32(cpu_T[1], r_tmp1);
+ tcg_gen_ext_i32_tl(cpu_T[0], r_tmp3);
+ tcg_gen_ext_i32_tl(cpu_T[1], r_tmp1);
gen_store_LO(cpu_T[0], 0);
gen_store_HI(cpu_T[1], 0);
dead_tmp(r_tmp1);
@@ -1932,12 +1932,12 @@ static void gen_muldiv (DisasContext *ctx, uint32_t opc,
TCGv r_tmp2 = new_tmp();
TCGv r_tmp3 = new_tmp();
- tcg_gen_ext_i32_tl(r_tmp1, cpu_T[0]);
- tcg_gen_ext_i32_tl(r_tmp2, cpu_T[1]);
+ tcg_gen_trunc_tl_i32(r_tmp1, cpu_T[0]);
+ tcg_gen_trunc_tl_i32(r_tmp2, cpu_T[1]);
tcg_gen_divu_i32(r_tmp3, r_tmp1, r_tmp2);
tcg_gen_remu_i32(r_tmp1, r_tmp1, r_tmp2);
- tcg_gen_trunc_tl_i32(cpu_T[0], r_tmp3);
- tcg_gen_trunc_tl_i32(cpu_T[1], r_tmp1);
+ tcg_gen_ext_i32_tl(cpu_T[0], r_tmp3);
+ tcg_gen_ext_i32_tl(cpu_T[1], r_tmp1);
gen_store_LO(cpu_T[0], 0);
gen_store_HI(cpu_T[1], 0);
dead_tmp(r_tmp1);
--
2.30.2