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py: Temporary fix for bug where not enough VM state is allocated.

This commit is contained in:
Damien George 2014-01-19 01:14:37 +00:00
parent ebde0b8a09
commit e02b2d4391
2 changed files with 6 additions and 12 deletions
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14
py/showbc.c
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@ -206,25 +206,15 @@ void mp_show_byte_code(const byte *ip, int len) {
printf("POP_JUMP_IF_FALSE " UINT_FMT, ip + unum - ip_start);
break;
/*
case MP_BC_JUMP_IF_TRUE_OR_POP:
DECODE_SLABEL;
if (rt_is_true(*sp)) {
ip += unum;
} else {
sp++;
}
printf("JUMP_IF_TRUE_OR_POP " UINT_FMT, ip + unum - ip_start);
break;
case MP_BC_JUMP_IF_FALSE_OR_POP:
DECODE_SLABEL;
if (rt_is_true(*sp)) {
sp++;
} else {
ip += unum;
}
printf("JUMP_IF_FALSE_OR_POP " UINT_FMT, ip + unum - ip_start);
break;
*/
case MP_BC_SETUP_EXCEPT:
DECODE_ULABEL; // except labels are always forward

4
py/vm.c
View File

@ -25,6 +25,8 @@
#define SET_TOP(val) *sp = (val)
mp_obj_t mp_execute_byte_code(const byte *code, const mp_obj_t *args, uint n_args, uint n_state) {
n_state += 1; // XXX there is a bug somewhere which doesn't count enough state... (conwaylife and mandel have the bug)
// allocate state for locals and stack
mp_obj_t temp_state[10];
mp_obj_t *state = &temp_state[0];
@ -86,6 +88,8 @@ bool mp_execute_byte_code_2(const byte *code_info, const byte **ip_in_out, mp_ob
machine_uint_t *volatile exc_sp = &exc_stack[0] - 1; // stack grows up, exc_sp points to top of stack
const byte *volatile save_ip = ip; // this is so we can access ip in the exception handler without making ip volatile (which means the compiler can't keep it in a register in the main loop)
// TODO if an exception occurs, do fast[0,1,2] become invalid??
// outer exception handling loop
for (;;) {
if (nlr_push(&nlr) == 0) {