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do not compile with stack auto, change functions to be nonreentrant, use fixed parameters

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- frees up ~4KB of code space
This commit is contained in:
Jeff Wang
2019-05-02 03:27:01 -04:00
parent 6399cbf44f
commit 0049f3df98
15 changed files with 121 additions and 104 deletions
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14
src/calc.c
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@ -16,6 +16,8 @@
#define STACK_Z 2
#define STACK_T 3
uint8_t NoLift = 0;
//stack "grows" towards 0
__xdata dec80 Stack[STACK_SIZE]; //0->x, 1->y, 2->z, 3->t initially
uint8_t StackPtr = 0;
@ -27,22 +29,18 @@ static void pop(){
StackPtr++; //adjust pointer
}
void push_decn(const char* signif_str, exp_t exponent, uint8_t no_lift){
if (!no_lift){
void push_decn(__xdata const char* signif_str, exp_t exponent){
if (!NoLift){
StackPtr--;
}
set_x(signif_str, exponent);
build_dec80(signif_str, exponent);
copy_decn(&stack(STACK_X), &AccDecn);
}
void clear_x(void){
set_dec80_zero(&stack(STACK_X));
}
void set_x(const char* signif_str, exp_t exponent){
build_dec80(signif_str, exponent);
copy_decn(&stack(STACK_X), &AccDecn);
}
__xdata dec80* get_x(void){
return &stack(STACK_X);
}