From 2e134c9c55cb4f1d8e9aca26360c006624344091 Mon Sep 17 00:00:00 2001 From: bellard Date: Tue, 11 Nov 2003 13:55:33 +0000 Subject: [PATCH] 64-bit multiplication fix (Ulrich Hecht) git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@446 c046a42c-6fe2-441c-8c8c-71466251a162 --- target-arm/op.c | 4 ++-- target-arm/translate.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/target-arm/op.c b/target-arm/op.c index 5879eba9fd..73f95b7774 100644 --- a/target-arm/op.c +++ b/target-arm/op.c @@ -368,7 +368,7 @@ void OPPROTO op_mul_T0_T1(void) void OPPROTO op_mull_T0_T1(void) { uint64_t res; - res = T0 * T1; + res = (uint64_t)T0 * (uint64_t)T1; T1 = res >> 32; T0 = res; } @@ -377,7 +377,7 @@ void OPPROTO op_mull_T0_T1(void) void OPPROTO op_imull_T0_T1(void) { uint64_t res; - res = (int32_t)T0 * (int32_t)T1; + res = (int64_t)T0 * (int64_t)T1; T1 = res >> 32; T0 = res; } diff --git a/target-arm/translate.c b/target-arm/translate.c index 808fa2b34f..9447946293 100644 --- a/target-arm/translate.c +++ b/target-arm/translate.c @@ -516,9 +516,9 @@ static void disas_arm_insn(DisasContext *s) gen_movl_T0_reg(s, rs); gen_movl_T1_reg(s, rm); if (insn & (1 << 22)) - gen_op_mull_T0_T1(); - else gen_op_imull_T0_T1(); + else + gen_op_mull_T0_T1(); if (insn & (1 << 21)) gen_op_addq_T0_T1(rn, rd); if (insn & (1 << 20)) -- GitLab