forked from n3tael/labast
75 lines
1.8 KiB
Rust
75 lines
1.8 KiB
Rust
use crate::{errors::RunError, stack::StackVec};
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pub fn jmp(labels: &mut [Option<i16>; 256], program_counter: &mut u16, data: u16) {
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if labels[data as usize].is_none() {
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eprintln!("{}", RunError::UnknownLabel(data));
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std::process::exit(2);
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}
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*program_counter = (labels[data as usize].unwrap() - 1) as u16;
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}
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pub fn jnz(
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memory: &mut StackVec,
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labels: &mut [Option<i16>; 256],
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program_counter: &mut u16,
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data: u16,
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) {
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if labels[data as usize].is_none() {
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eprintln!("{}", RunError::UnknownLabel(data));
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std::process::exit(2);
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}
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if memory.pop() != 0 {
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*program_counter = (labels[data as usize].unwrap() - 1) as u16;
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}
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}
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pub fn jz(
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memory: &mut StackVec,
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labels: &mut [Option<i16>; 256],
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program_counter: &mut u16,
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data: u16,
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) {
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if labels[data as usize].is_none() {
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eprintln!("{}", RunError::UnknownLabel(data));
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std::process::exit(2);
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}
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if memory.pop() == 0 {
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*program_counter = (labels[data as usize].unwrap() - 1) as u16;
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}
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}
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pub fn kjnz(
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memory: &mut StackVec,
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labels: &mut [Option<i16>; 256],
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program_counter: &mut u16,
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data: u16,
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) {
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if labels[data as usize].is_none() {
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eprintln!("{}", RunError::UnknownLabel(data));
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std::process::exit(2);
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}
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if memory.last() != 0 {
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*program_counter = (labels[data as usize].unwrap() - 1) as u16;
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}
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}
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pub fn kjz(
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memory: &mut StackVec,
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labels: &mut [Option<i16>; 256],
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program_counter: &mut u16,
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data: u16,
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) {
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if labels[data as usize].is_none() {
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eprintln!("{}", RunError::UnknownLabel(data));
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std::process::exit(2);
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}
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if memory.last() == 0 {
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*program_counter = (labels[data as usize].unwrap() - 1) as u16;
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}
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}
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