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(uxn.c) Cache intermediary result in POKE2 usage

This commit is contained in:
neauoire 2023-08-30 09:52:47 -07:00
parent 07dc45c0e7
commit aeb38c0819
1 changed files with 4 additions and 4 deletions
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8
src/uxn.c
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@ -45,7 +45,7 @@ uxn_eval(Uxn *u, Uint16 pc)
int ins = ram[pc++]; int ins = ram[pc++];
int k = ins & 0x80 ? 0xff : 0; int k = ins & 0x80 ? 0xff : 0;
Stack *s = ins & 0x40 ? &u->rst : &u->wst; Stack *s = ins & 0x40 ? &u->rst : &u->wst;
Uint8 *ptr = s->dat + s->ptr - 1; Uint8 *ptr = s->dat + s->ptr - 1, *rr;
switch(ins & 0x1f ? ins & 0x3f : ins << 4) { switch(ins & 0x1f ? ins & 0x3f : ins << 4) {
/* IMM */ /* IMM */
case 0x000: /* BRK */ return 1; case 0x000: /* BRK */ return 1;
@ -88,15 +88,15 @@ uxn_eval(Uxn *u, Uint16 pc)
case 0x10: /* LDZ */ t=T; SET(1, 0) PUT1(ram[t]) break; case 0x10: /* LDZ */ t=T; SET(1, 0) PUT1(ram[t]) break;
case 0x30: /* LDZ2 */ t=T; SET(1, 1) PUT2(PEEK2(ram + t)) break; case 0x30: /* LDZ2 */ t=T; SET(1, 1) PUT2(PEEK2(ram + t)) break;
case 0x11: /* STZ */ t=T;n=N; SET(2,-2) ram[t] = n; break; case 0x11: /* STZ */ t=T;n=N; SET(2,-2) ram[t] = n; break;
case 0x31: /* STZ2 */ t=T;n=H2; SET(3,-3) POKE2(ram + t, n) break; case 0x31: /* STZ2 */ t=T;n=H2; SET(3,-3) rr = ram + t; POKE2(rr, n) break;
case 0x12: /* LDR */ t=T; SET(1, 0) PUT1(ram[pc + (Sint8)t]) break; case 0x12: /* LDR */ t=T; SET(1, 0) PUT1(ram[pc + (Sint8)t]) break;
case 0x32: /* LDR2 */ t=T; SET(1, 1) PUT2(PEEK2(ram + pc + (Sint8)t)) break; case 0x32: /* LDR2 */ t=T; SET(1, 1) PUT2(PEEK2(ram + pc + (Sint8)t)) break;
case 0x13: /* STR */ t=T;n=N; SET(2,-2) ram[pc + (Sint8)t] = n; break; case 0x13: /* STR */ t=T;n=N; SET(2,-2) ram[pc + (Sint8)t] = n; break;
case 0x33: /* STR2 */ t=T;n=H2; SET(3,-3) POKE2(ram + pc + (Sint8)t, n) break; case 0x33: /* STR2 */ t=T;n=H2; SET(3,-3) rr = ram + pc + (Sint8)t; POKE2(rr, n) break;
case 0x14: /* LDA */ t=T2; SET(2,-1) PUT1(ram[t]) break; case 0x14: /* LDA */ t=T2; SET(2,-1) PUT1(ram[t]) break;
case 0x34: /* LDA2 */ t=T2; SET(2, 0) PUT2(PEEK2(ram + t)) break; case 0x34: /* LDA2 */ t=T2; SET(2, 0) PUT2(PEEK2(ram + t)) break;
case 0x15: /* STA */ t=T2;n=L; SET(3,-3) ram[t] = n; break; case 0x15: /* STA */ t=T2;n=L; SET(3,-3) ram[t] = n; break;
case 0x35: /* STA2 */ t=T2;n=N2; SET(4,-4) POKE2(ram + t, n) break; case 0x35: /* STA2 */ t=T2;n=N2; SET(4,-4) rr = ram + t; POKE2(rr, n) break;
case 0x16: /* DEI */ t=T; SET(1, 0) PUT1(DEI(t)) break; case 0x16: /* DEI */ t=T; SET(1, 0) PUT1(DEI(t)) break;
case 0x36: /* DEI2 */ t=T; SET(1, 1) PUT1x2(DEI(t + 1), DEI(t)) break; case 0x36: /* DEI2 */ t=T; SET(1, 1) PUT1x2(DEI(t + 1), DEI(t)) break;
case 0x17: /* DEO */ t=T;n=N; SET(2,-2) DEO(t, n) break; case 0x17: /* DEO */ t=T;n=N; SET(2,-2) DEO(t, n) break;