motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-02 07:13:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

target-mips: Avoid shifting left into sign bit

Browse source 
Add U suffix to various places where we shift a 1 left by 31,
to avoid undefined behaviour.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
This commit is contained in:
Peter Maydell 2014-03-17 16:00:34 +00:00 • committed by Michael Tokarev
parent d9631b90da
commit f45cb2f43f
4 changed files with 17 additions and 17 deletions
Download patch file Download diff file Expand all files Collapse all files

8
target-mips/helper.c
View file

@ -458,7 +458,7 @@ void mips_cpu_do_interrupt(CPUState *cs)
env->hflags &= ~(MIPS_HFLAG_KSU);
/* EJTAG probe trap enable is not implemented... */
if (!(env->CP0_Status & (1 << CP0St_EXL)))
env->CP0_Cause &= ~(1 << CP0Ca_BD);
env->CP0_Cause &= ~(1U << CP0Ca_BD);
env->active_tc.PC = (int32_t)0xBFC00480;
set_hflags_for_handler(env);
break;
@ -478,7 +478,7 @@ void mips_cpu_do_interrupt(CPUState *cs)
env->hflags |= MIPS_HFLAG_64 | MIPS_HFLAG_CP0;
env->hflags &= ~(MIPS_HFLAG_KSU);
if (!(env->CP0_Status & (1 << CP0St_EXL)))
env->CP0_Cause &= ~(1 << CP0Ca_BD);
env->CP0_Cause &= ~(1U << CP0Ca_BD);
env->active_tc.PC = (int32_t)0xBFC00000;
set_hflags_for_handler(env);
break;
@ -616,9 +616,9 @@ void mips_cpu_do_interrupt(CPUState *cs)
if (!(env->CP0_Status & (1 << CP0St_EXL))) {
env->CP0_EPC = exception_resume_pc(env);
if (env->hflags & MIPS_HFLAG_BMASK) {
env->CP0_Cause |= (1 << CP0Ca_BD);
env->CP0_Cause |= (1U << CP0Ca_BD);
} else {
env->CP0_Cause &= ~(1 << CP0Ca_BD);
env->CP0_Cause &= ~(1U << CP0Ca_BD);
}
env->CP0_Status |= (1 << CP0St_EXL);
env->hflags |= MIPS_HFLAG_64 | MIPS_HFLAG_CP0;