private static void AddBootstrappingCode(StreamWriter sw)
{
var bootstrapLines = new BootstrapCode().ToAssembly();
foreach (var line in bootstrapLines)
{
sw.WriteLine(line);
}
}
public void Name()
{
var expected = new []
{
"// SP=256",
"@256",
"D=A",
"@SP",
"M=D",
"",
$"// call Sys.init 0",
$"// push Sys.init$ret.0",
$"@Sys.init$ret.0",
"D=A",
"@SP",
"A=M",
"M=D",
"@SP",
"M=M+1",
"// push LCL",
"@LCL",
"D=M",
"@SP",
"A=M",
"M=D",
"@SP",
"M=M+1",
"// push ARG",
"@ARG",
"D=M",
"@SP",
"A=M",
"M=D",
"@SP",
"M=M+1",
"// push THIS",
"@THIS",
"D=M",
"@SP",
"A=M",
"M=D",
"@SP",
"M=M+1",
"// push THAT",
"@THAT",
"D=M",
"@SP",
"A=M",
"M=D",
"@SP",
"M=M+1",
"// ARG = SP-5-nArgs",
"@SP",
"D=M",
"@5",
"D=D-A",
$"@0",
"D=D-A",
"@ARG",
"M=D",
"// LCL = SP",
"@SP",
"D=M",
"@LCL",
"M=D",
$"// goto Sys.init",
$"@Sys.init",
"0;JMP",
$"(Sys.init$ret.0)",
""
};
var actual = new BootstrapCode().ToAssembly();
Assert.Equal(expected, actual);
}
