Init commit

assembler/targets/test/v8_test.ts

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+import { InstructionOutputLine } from "../../assembly.js";
+import targetV8 from "../v8.js";
+const target = targetV8;
+const tests = [
+	{
+		name: 'pixels_1',
+		input: String.raw`
+		.address $80
+		reset:
+		LDB #$80
+		LDX #$00
+		JMP idle
+		
+		int:
+		LDD $00
+		LDC #$08
+		drawLoop:
+		LDA D
+		AND B,A
+		JZ noPixel
+		STX $00
+		noPixel:
+		ROR B
+		INC X
+		DEC C
+		JNZ drawLoop
+		RTI
+		
+		idle:
+		HLT
+		JMP idle
+		
+		.address $FE
+		.data int
+		.data reset
+		`,
+		expected: [0x7980, 0x7e00, 0x0296, 0x8b00, 0x7a08, 0xc3, 0x41, 0x0490, 0x8600, 0x69, 0x1e, 0x2a, 0x058a, 0x0b, 0x00, 0x0296, 0x86, 0x80],
+	},
+	{
+		name: 'memory_copy_1',
+		input: String.raw`
+		; Bank switch: destroys A, B
+		; ROM: bank number is stored in D's high nibble, push return address, clear carry, use jmp instead of jsr
+		; RAM: bank number is stored in D's low nibble, set carry
+
+		LDB #$F0
+		JNC bankNoCarry
+		NOT B
+		bankNoCarry:
+		LDA $00
+		AND B,A
+		OR D,A
+		STA $00
+		RET
+
+		; Memory copy: A=start, B=offset, length=C, destroys D
+		copyLoop:
+		LDD $00,A
+		ADC B,A
+		STD $00,A
+		DEC C
+		JNZ copyLoop
+		RET
+
+		; Memory copy to screen: A=start, destroys C, D, screen address register
+		LDD #$80
+		LDC D
+		STD $03
+		screenCopyLoop:
+
+		LDD $00,A
+		STD $02
+		DEC C
+		JNZ screenCopyLoop
+		RET
+		`,
+		expected: [0x79f0, 0x0705, 0x31, 0x8800, 0x41, 0x4b, 0x8000, 0x0a, 0x9b00, 0x11, 0x9300, 0x2a, 0x050c, 0x0a, 0x7b80, 0xd3, 0x8303, 0x9b00, 0x8302, 0x2a, 0x051a, 0x0a]
+	}
+];
+
+export function runTests() {
+	testLoop: for (const { input, expected, name } of tests) {
+		const actualOutputLines = target.assemble({
+			source: input,
+		}).lines.filter((line): line is InstructionOutputLine => line.tag === 'instruction');
+		const actualOutputValues = actualOutputLines
+			.map(line => parseInt(line.bits, 2));
+		for (let i = 0; i < expected.length; i++) {
+			const sourceLine = actualOutputLines[i];
+			const actualValue = actualOutputValues[i];
+			const expectedValue = expected[i];
+			if (actualValue !== expectedValue) {
+				const actualValueHex = actualValue.toString(16).padStart(4, '0');
+				const expectedValueHex = expectedValue.toString(16).padStart(4, '0');
+				console.error(`Test '${name}' failed on line ${i}: '${sourceLine.source.sourceInstructionCommented.trim()}'`);
+				console.error(`Expected 0x${expectedValueHex}, got 0x${actualValueHex}`);
+				continue testLoop;
+			}
+		}
+	}
+}