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target-alpha: Move exception helpers to helper.c.

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Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Richard Henderson 2012-03-24 09:51:08 -07:00 • committed by Blue Swirl
parent 0be034bc2c
commit b9f0923eb7
5 changed files with 63 additions and 56 deletions
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39
target-alpha/helper.c
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@ -23,6 +23,7 @@
#include "cpu.h"
#include "softfloat.h"
#include "helper.h"
uint64_t cpu_alpha_load_fpcr (CPUAlphaState *env)
{
@ -484,3 +485,41 @@ void cpu_dump_state (CPUAlphaState *env, FILE *f, fprintf_function cpu_fprintf,
}
cpu_fprintf(f, "\n");
}
void do_restore_state(CPUAlphaState *env, void *retaddr)
{
uintptr_t pc = (uintptr_t)retaddr;
if (pc) {
TranslationBlock *tb = tb_find_pc(pc);
if (tb) {
cpu_restore_state(tb, env, pc);
}
}
}
/* This should only be called from translate, via gen_excp.
We expect that ENV->PC has already been updated. */
void QEMU_NORETURN helper_excp(CPUAlphaState *env, int excp, int error)
{
env->exception_index = excp;
env->error_code = error;
cpu_loop_exit(env);
}
/* This may be called from any of the helpers to set up EXCEPTION_INDEX. */
void QEMU_NORETURN dynamic_excp(CPUAlphaState *env, void *retaddr,
int excp, int error)
{
env->exception_index = excp;
env->error_code = error;
do_restore_state(env, retaddr);
cpu_loop_exit(env);
}
void QEMU_NORETURN arith_excp(CPUAlphaState *env, void *retaddr,
int exc, uint64_t mask)
{
env->trap_arg0 = exc;
env->trap_arg1 = mask;
dynamic_excp(env, retaddr, EXCP_ARITH, 0);
}