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Simplify register access code

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This commit is contained in:
Nick Krichevsky 2022-04-14 21:22:05 -04:00
parent f1e72b45de
commit deeacd917a
1 changed files with 3 additions and 9 deletions
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12
src/run.rs
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@ -172,9 +172,7 @@ impl Processor {
SixteenBitLoadInstruction::LDEffectiveAddress { dst, offset } => { SixteenBitLoadInstruction::LDEffectiveAddress { dst, offset } => {
let current_sp = self let current_sp = self
.registers .registers
.get_16bit_register(register::SixteenBit::Single( .get_single_16bit_register(register::SingleSixteenBit::StackPointer);
register::SingleSixteenBit::StackPointer,
));
// TODO: This is gross. I'll clean this up when I do more ALU instructions // TODO: This is gross. I'll clean this up when I do more ALU instructions
// because there's bound to be reuse // because there's bound to be reuse
@ -220,9 +218,7 @@ impl Processor {
SixteenBitLoadInstruction::Push { src } => { SixteenBitLoadInstruction::Push { src } => {
let current_sp = self let current_sp = self
.registers .registers
.get_16bit_register(register::SixteenBit::Single( .get_single_16bit_register(register::SingleSixteenBit::StackPointer);
register::SingleSixteenBit::StackPointer,
));
// we want to pop the LSB first (i.e. we write the MSB first) // we want to pop the LSB first (i.e. we write the MSB first)
// https://rgbds.gbdev.io/docs/v0.5.2/gbz80.7#PUSH_r16 // https://rgbds.gbdev.io/docs/v0.5.2/gbz80.7#PUSH_r16
@ -242,9 +238,7 @@ impl Processor {
SixteenBitLoadInstruction::Pop { dst } => { SixteenBitLoadInstruction::Pop { dst } => {
let current_sp = self let current_sp = self
.registers .registers
.get_16bit_register(register::SixteenBit::Single( .get_single_16bit_register(register::SingleSixteenBit::StackPointer);
register::SingleSixteenBit::StackPointer,
));
let popped_bytes = [ let popped_bytes = [
self.memory self.memory