py: change negative array indices with array - 1.

This commit is contained in:
Damien George 2014-01-02 18:20:41 +00:00
parent 27bf5b829b
commit 66327006fc

View File

@ -78,7 +78,7 @@ bool mp_execute_byte_code_2(const byte **ip_in_out, mp_obj_t *fastn, mp_obj_t **
volatile machine_uint_t currently_in_except_block = 0; // 0 or 1, to detect nested exceptions
machine_uint_t exc_stack[8]; // on the exception stack we store (ip, sp | X) for each block, X = previous value of currently_in_except_block
machine_uint_t *volatile exc_sp = &exc_stack[-1]; // stack grows up, exc_sp points to top of stack
machine_uint_t *volatile exc_sp = &exc_stack[0] - 1; // stack grows up, exc_sp points to top of stack
// outer exception handling loop
for (;;) {
@ -453,7 +453,7 @@ bool mp_execute_byte_code_2(const byte **ip_in_out, mp_obj_t *fastn, mp_obj_t **
case MP_BC_RETURN_VALUE:
nlr_pop();
*sp_in_out = sp;
assert(exc_sp == &exc_stack[-1]);
assert(exc_sp == &exc_stack[0] - 1);
return false;
case MP_BC_YIELD_VALUE: