uxn

commit 9b8cd748ad81ad74c5cdb7e48e4f6bae319a60e6
parent 0e7137e016114335ffe8278eb7a4e1648e10cbc4
Author: Devine Lu Linvega <aliceffekt@gmail.com>
Date:   Tue,  3 Jan 2023 10:48:17 -0800

Faster CALL opcodes

Diffstat:
M
src/uxn.c
 | 
8
++++----

1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/src/uxn.c b/src/uxn.c
@@ -48,10 +48,10 @@ uxn_eval(Uxn *u, Uint16 pc)
 		switch(instr & 0x1f) {
 		case 0x00:
 		/* Literals/Calls */
-		if(instr == 0x20)      /* JMI  */ { sp = &u->wst->ptr; PEEK16(a, pc) pc = a; }
-		else if(instr == 0x40) /* JCI  */ { sp = &u->wst->ptr; src = u->wst; POP8(a) PEEK16(b, pc) pc = a ? (Uint16)b : pc + 2; }
-		else if(instr == 0x60) /* JSI  */ { sp = &u->wst->ptr; PEEK16(a, pc) PUSH16(u->rst, pc + 2) pc = a; }
-		else if(bs)            /* LIT2 */ { PEEK16(a, pc) PUSH16(src, a) pc = pc + 2; }
+		if(instr == 0x20)      /* JMI  */ { PEEK16(a, pc) pc = a; }
+		else if(instr == 0x40) /* JCI  */ { sp = &u->wst->ptr; src = u->wst; POP8(a) if(a) { PEEK16(b, pc) pc = b; } else { pc += 2; } }
+		else if(instr == 0x60) /* JSI  */ { PEEK16(a, pc) PUSH16(u->rst, pc + 2) pc = a; }
+		else if(bs)            /* LIT2 */ { PEEK16(a, pc) PUSH16(src, a) pc += 2; }
 		else                   /* LITr */ { a = u->ram[pc++]; PUSH8(src, a) } break;
 		/* ALU */
 		case 0x01: /* INC */ POP(a) PUSH(src, a + 1) break;