implement MOV

1 files changed, 37 insertions, 1 deletions

diff --git a/src/vm/instruction.test.js b/src/vm/instruction.test.js
index 5dc7eea..3535b76 100644
--- a/src/vm/instruction.test.js
+++ b/src/vm/instruction.test.js
@@ -1,7 +1,7 @@
 'use strict';
 
 const { Core } = require('./core.js');
-const { DAT } = require('./instruction.js');
+const { DAT, MOV } = require('./instruction.js');
 
 
 const CORESIZE = 8000;
@@ -13,3 +13,39 @@ test('DAT does nothing and kills the program', () => {
 	const ins = core.data[pc];
 	expect(DAT(core, pc, ins)).toEqual([]);
 });
+
+
+test('MOV correctly moves a full instruction', () => {
+	const core = new Core(CORESIZE);
+	const pc = 20;
+	core.data[pc] = {
+		opcode: 'MOV',
+		a: { mode: 'direct', value: 0 },
+		b: { mode: 'direct', value: 1 },
+	};
+	const ins = core.data[pc];
+	expect(core.data[pc+1].opcode).toBe('DAT');
+	expect(MOV(core, pc, ins)).toEqual([pc+1]);
+	expect(core.data[pc]).toEqual(core.data[pc+1]);
+	expect(core.data[pc+1].opcode).toBe('MOV');
+});
+
+
+test('MOV correctly moves a B-field', () => {
+	const core = new Core(CORESIZE);
+	const pc = 20;
+	core.data[pc] = {
+		opcode: 'MOV',
+		a: { mode: 'immediate', value: 100 },
+		b: { mode: 'direct', value: 1 },
+	};
+	const ins = core.data[pc];
+	expect(core.data[pc+1].opcode).toBe('DAT');
+	expect(MOV(core, pc, ins)).toEqual([pc+1]);
+	expect(core.data[pc+1]).toEqual({	
+		opcode: 'DAT',
+		a: { mode: 'immediate', value: 0 },
+		b: { mode: 'immediate', value: 100 },
+	});
+
+});