motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-02 15:23:53 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

target/openrisc: Keep SR_CY and SR_OV in a separate variables

Browse source 
This significantly streamlines carry and overflow production.

Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2015-02-18 13:26:26 -08:00
parent 84775c43f3
commit 9745807191
4 changed files with 78 additions and 89 deletions
Download patch file Download diff file Expand all files Collapse all files

31
target/openrisc/exception_helper.c
View file

@ -30,13 +30,32 @@ void HELPER(exception)(CPUOpenRISCState *env, uint32_t excp)
raise_exception(cpu, excp);
}
void HELPER(ove)(CPUOpenRISCState *env, target_ulong test)
static void QEMU_NORETURN do_range(CPUOpenRISCState *env, uintptr_t pc)
{
if (unlikely(test)) {
OpenRISCCPU *cpu = openrisc_env_get_cpu(env);
CPUState *cs = CPU(cpu);
OpenRISCCPU *cpu = openrisc_env_get_cpu(env);
CPUState *cs = CPU(cpu);
cs->exception_index = EXCP_RANGE;
cpu_loop_exit_restore(cs, GETPC());
cs->exception_index = EXCP_RANGE;
cpu_loop_exit_restore(cs, pc);
}
void HELPER(ove_cy)(CPUOpenRISCState *env)
{
if (env->sr_cy) {
do_range(env, GETPC());
}
}
void HELPER(ove_ov)(CPUOpenRISCState *env)
{
if (env->sr_ov < 0) {
do_range(env, GETPC());
}
}
void HELPER(ove_cyov)(CPUOpenRISCState *env)
{
if (env->sr_cy || env->sr_ov < 0) {
do_range(env, GETPC());
}
}