30 lines
935 B
JavaScript
30 lines
935 B
JavaScript
const { POINTER_TO_DISPLAY } = require('./machine.config');
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const { num2hex } = require('./logging.js');
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/**
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* Print the contents of display memory as hex number
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* @param {Uint8Array} mem - CPU memory
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**/
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const printDisplay = (mem) => {
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const disp = mem[POINTER_TO_DISPLAY];
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for (let i = disp; i < disp + 16; i += 4) {
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console.log(`${num2hex(mem[i])} ${num2hex(mem[i+1])} ${num2hex(mem[i+2])} ${num2hex(mem[i+3])}`);
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}
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}
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/**
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* Print the contents of display memory using black and white emoji circles
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* @param {Uint8Array} mem - CPU memory
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**/
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const prettyPrintDisplay = (mem) => {
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const disp = mem[POINTER_TO_DISPLAY];
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const num2pic = (n) => n > 0 ? '⚫' : '⚪';
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for (let i = disp; i < disp + 16; i += 4) {
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console.log(`${num2pic(mem[i])}${num2pic(mem[i+1])}${num2pic(mem[i+2])}${num2pic(mem[i+3])}`);
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}
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}
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module.exports = {
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"printDisplay": printDisplay,
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"prettyPrintDisplay": prettyPrintDisplay,
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} |