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(uxn.c) Cache stack pointer

This commit is contained in:
Devine Lu Linvega 2023-04-11 10:32:23 -07:00
parent fc8400dcac
commit daa421c259
1 changed files with 3 additions and 3 deletions
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6
src/uxn.c
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@ -31,8 +31,8 @@ WITH REGARD TO THIS SOFTWARE.
#define SET(mul, add) { if(mul > s->ptr) HALT(1) tmp = s->ptr + k * mul + add; if(tmp > 254) HALT(2) s->ptr = tmp; }
#define PUT(o, v) { s->dat[(Uint8)(s->ptr - 1 - (o))] = (v); }
#define PUT2(o, v) { tmp = (v); s->dat[(Uint8)(s->ptr - o - 2)] = tmp >> 8; s->dat[(Uint8)(s->ptr - o - 1)] = tmp; }
#define PUSH(stack, v) { if((stack)->ptr > 254) HALT(2) (stack)->dat[(stack)->ptr++] = (v); }
#define PUSH2(stack, v) { if((stack)->ptr > 253) HALT(2) tmp = (v); (stack)->dat[(stack)->ptr] = tmp >> 8; (stack)->dat[(stack)->ptr + 1] = tmp; (stack)->ptr += 2; }
#define PUSH(x, v) { z = (x); if(z->ptr > 254) HALT(2) z->dat[z->ptr++] = (v); }
#define PUSH2(x, v) { z = (x); if(z->ptr > 253) HALT(2) tmp = (v); z->dat[z->ptr] = tmp >> 8; z->dat[z->ptr + 1] = tmp; z->ptr += 2; }
#define DEO(a, b) { u->dev[(a)] = (b); if((deo_mask[(a) >> 4] >> ((a) & 0xf)) & 0x1) uxn_deo(u, (a)); }
#define DEI(a, b) { PUT((a), ((dei_mask[(b) >> 4] >> ((b) & 0xf)) & 0x1) ? uxn_dei(u, (b)) : u->dev[(b)]) }
@ -41,7 +41,7 @@ uxn_eval(Uxn *u, Uint16 pc)
{
Uint8 ins, opc, k;
Uint16 t, n, l, tmp;
Stack *s;
Stack *s, *z;
if(!pc || u->dev[0x0f]) return 0;
for(;;) {
ins = u->ram[pc++];