public void Assemble_LabelsAreResolved_Correctly()
{
var lines = new []
{
"(FIRST)",
"@0",
"(SECOND)",
"@i",
"(THIRD)",
"@x",
"@FIRST",
"@THIRD"
};
var expcted = new[]
{
"0000000000000000",
"0000000000010000",
"0000000000010001",
"0000000000000000",
"0000000000000010",
};
var actaul = HackAssembler.Assemble(lines);
Assert.Equal(expcted, actaul);
}
public void Assemble_SymbolsAreResolved_Correctly(string symbol, string[] expected)
{
var lines = new []
{
symbol
};
var actual = HackAssembler.Assemble(lines);
Assert.Equal(expected, actual);
}
public void Asseble_WithEmptyLinesAndCommentsAndWhiteSpaces_AreIgnored()
{
var lines = new[]
{
"",
"// comment",
" ",
"@0 ",
"@1 // comment"
};
var expected = new[]
{
"0000000000000000",
"0000000000000001"
};
var actual = HackAssembler.Assemble(lines);
Assert.Equal(expected, actual);
}
public void Asseble_LoacalsAreResolved_Correctly()
{
var lines = new []
{
"@i",
"@longName",
"@i",
"@x"
};
var expcted = new[]
{
"0000000000010000",
"0000000000010001",
"0000000000010000",
"0000000000010010",
};
var actual = HackAssembler.Assemble(lines);
Assert.Equal(expcted, actual);
}
public void Assemble_ReturnsCorrectBinaryInsertuctions()
{
var lines = new[] {
"",
"// This file is part of www.nand2tetris.org",
"// and the book \"The Elements of Computing Systems\"",
"// by Nisan and Schocken, MIT Press.",
"// File name: projects/04/Mult.asm",
"",
"// Multiplies R0 and R1 and stores the result in R2.",
"// (R0, R1, R2 refer to RAM[0], RAM[1], and RAM[2], respectively.)",
"",
"// Put your code here.",
"@R2",
" M=0",
"@i",
" M=0",
" (LOOP)",
"@R0",
" D=M",
"@i",
" D=D-M",
"@END",
" D;JEQ",
"",
" @R1",
"D=M",
" @R2",
"M=D+M",
" @i",
"M=M+1",
"@LOOP",
"0;JMP",
"",
" (END)",
"@END",
"0;JMP",
};
var expected = new[] {
"0000000000000010",
"1110101010001000",
"0000000000010000",
"1110101010001000",
"0000000000000000",
"1111110000010000",
"0000000000010000",
"1111010011010000",
"0000000000010010",
"1110001100000010",
"0000000000000001",
"1111110000010000",
"0000000000000010",
"1111000010001000",
"0000000000010000",
"1111110111001000",
"0000000000000100",
"1110101010000111",
"0000000000010010",
"1110101010000111",
};
var actual = HackAssembler.Assemble(lines);
Assert.Equal(expected, actual);
}