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Fix truncate/extend reversal in MIPS DIV{, U} handling, by Richard Sandiford.

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4620 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2008-05-29 18:28:07 +00:00
parent 84774e8ea3
commit 9b686843a0
1 changed files with 8 additions and 8 deletions
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16
target-mips/translate.c
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@ -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);