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Clean up code using pop_or_peek

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JJ Bliss
2026-05-02 10:05:02 -04:00
parent 30f9c86c22
commit fcf42a5b4a
1 changed files with 9 additions and 13 deletions
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uxn/uxn.ha
+9 -13
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@@ -795,7 +795,7 @@ export fn uxn_step(state: *uxn) (done | error) = {
// /* JCN */ OPC(0x0d,POx(a,d) POx(b,0),if(b) MOV)
case let jcn_inst: JCN =>
let addr = pop_or_get(jcn_inst,0,state);
let cond: u8 = pop_or_get(normal_op {keep = jcn_inst.keep,
let cond: u8 = pop_or_peek(normal_op {keep = jcn_inst.keep,
ret = jcn_inst.ret,
short = false},
if(jcn_inst.short){ yield 2;} else { yield 1; }, state ): u8;
@@ -958,21 +958,17 @@ export fn uxn_step(state: *uxn) (done | error) = {
push_to_stack(eor_inst.ret, res, state);
// /* SFT */ OPC(0x1f,POx(a,0) POx(b,d),PUx(b >> (a & 0xf) << (a >> 4), d,r))
case let sft_inst: SFT =>
let shifts: u8 = pop_or_get(normal_op{short = false, keep = sft_inst.keep, ret = sft_inst.ret}, 0, state): u8;
let shifts: u8 = pop_or_peek(normal_op{short = false, keep = sft_inst.keep, ret = sft_inst.ret}, 0, state): u8;
let rightshifts = shifts & 0b00001111;
let leftshifts = (shifts & 0b11110000) >> 4;
if(sft_inst.short){ //TODO, this seems like it can be cleaned up a bit
let low = pop_or_get(normal_op{short = false, keep = sft_inst.keep, ret = sft_inst.ret}, 1, state): u8;
let high = pop_or_get(normal_op{short = false, keep = sft_inst.keep, ret = sft_inst.ret}, 2, state): u8;
let val = short_from_bytes(high,low);
let res = (val >> rightshifts ) << leftshifts;
push_to_stack(sft_inst.ret, res, state);
}else{
let val = pop_or_get(sft_inst, 1, state): u8;
let res = (val >> rightshifts ) << leftshifts;
push_to_stack(sft_inst.ret, res, state);
let val = pop_or_peek(sft_inst,1,state);
let res = match(val) {
case let s: u16 =>
yield (s >> rightshifts ) << leftshifts;
case let b: u8 =>
yield (b >> rightshifts ) << leftshifts;
};
push_to_stack(sft_inst.ret, res, state);
case =>
return readval: unhandled;