128 lines
1.2 KiB
NASM
128 lines
1.2 KiB
NASM
@3030 // push constant 3030
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D=A
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@SP
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A=M
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M=D
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@SP
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M=M+1
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@SP // pop
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AM=M-1
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D=M
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@THIS
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M=D //
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@3040 // push constant 3040
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D=A
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@SP
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A=M
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M=D
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@SP
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M=M+1
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@SP // pop
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AM=M-1
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D=M
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@THAT
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M=D //
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@32 // push constant 32
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D=A
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@SP
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A=M
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M=D
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@SP
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M=M+1
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@THIS // this 2
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D=M
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@2 // write 2 to A
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D=D+A // D = segment+index
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@R13 // save it to R13
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M=D // write @THIS+2 to R13
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@SP // pop
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AM=M-1
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D=M
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@R13
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A=M // Read @R13 to A (for this 2)
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M=D // end pop this 2
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@46 // push constant 46
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D=A
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@SP
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A=M
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M=D
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@SP
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M=M+1
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@THAT // that 6
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D=M
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@6 // write 6 to A
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D=D+A // D = segment+index
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@R13 // save it to R13
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M=D // write @THAT+6 to R13
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@SP // pop
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AM=M-1
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D=M
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@R13
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A=M // Read @R13 to A (for that 6)
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M=D // end pop that 6
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@THIS // pointer 0
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D=M
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@SP
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A=M
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M=D
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@SP
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M=M+1
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@THAT // pointer 1
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D=M
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@SP
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A=M
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M=D
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@SP
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M=M+1
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@SP // ==== add ====
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A=M-1
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D=M
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A=A-1
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M=D+M
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@SP
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M=M-1 // end add
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@THIS // this 2
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D=M
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@2 // write 2 to A
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D=D+A // D = segment+index
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@R13 // save it to R13
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M=D // write @THIS+2 to R13
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@R13
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A=M
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D=M
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@SP
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A=M
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M=D
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@SP
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M=M+1
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@SP // ==== sub ====
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A=M-1
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D=M
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A=A-1
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M=M-D
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@SP
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M=M-1 // end sub
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@THAT // that 6
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D=M
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@6 // write 6 to A
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D=D+A // D = segment+index
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@R13 // save it to R13
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M=D // write @THAT+6 to R13
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@R13
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A=M
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D=M
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@SP
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A=M
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M=D
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@SP
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M=M+1
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@SP // ==== add ====
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A=M-1
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D=M
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A=A-1
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M=D+M
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@SP
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M=M-1 // end add
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@126
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0;JMP
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