807 lines
6.3 KiB
NASM
807 lines
6.3 KiB
NASM
// Bootstrap code
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@256
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D = A
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@SP
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M = D
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// ^ SP = 256
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// call Sys.init 0
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@Sys.init:return:0
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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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// ^ push return-address
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@LCL
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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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// ^ push lcl
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@ARG
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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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// ^ push arg
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@THIS
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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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// ^ push this
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@THAT
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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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// ^ push that
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@SP
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D = M
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@0
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D = D - A
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@5
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D = D - A
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@ARG
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M = D
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// ^ ARG = SP - 0 - 5
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@SP
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D = M
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@LCL
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M = D
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// ^ LCL = SP
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@Sys.init
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0;JMP
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// ^ goto Sys.init
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(Sys.init:return:0)
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// Start /home/felixm/dev/nand2tetris/projects/08/FunctionCalls/NestedCall/Sys.vm
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// function Sys.init 0
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(Sys.init)
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@0
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D = A
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// ^ push 0 * 0
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// push constant 4000
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@4000
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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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// pop pointer THIS
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@SP
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A = M
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A = A - 1
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D = M
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@SP
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M = M - 1
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@THIS
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M = D
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// ^ pop into THIS
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// push constant 5000
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@5000
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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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// pop pointer THAT
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@SP
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A = M
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A = A - 1
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D = M
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@SP
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M = M - 1
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@THAT
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M = D
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// ^ pop into THAT
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// call Sys.main 0
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@Sys.main:return:1
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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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// ^ push return-address
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@LCL
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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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// ^ push lcl
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@ARG
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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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// ^ push arg
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@THIS
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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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// ^ push this
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@THAT
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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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// ^ push that
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@SP
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D = M
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@0
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D = D - A
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@5
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D = D - A
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@ARG
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M = D
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// ^ ARG = SP - 0 - 5
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@SP
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D = M
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@LCL
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M = D
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// ^ LCL = SP
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@Sys.main
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0;JMP
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// ^ goto Sys.main
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(Sys.main:return:1)
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// pop temp 1
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@1
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D = A
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@5
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A = D + A
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D = A
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@R13
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M = D
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// ^ R13 = temp + index
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@SP
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A = M
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A = A - 1
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D = M
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@SP
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M = M - 1
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// ^ pop into D
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@R13
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A = M
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M = D
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// ^ *R13 = D
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// label Sys.init:LOOP
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(Sys.init:LOOP)
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// goto Sys.init:LOOP
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@Sys.init:LOOP
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0;JMP
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// function Sys.main 5
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(Sys.main)
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@0
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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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// ^ push 0
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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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// ^ push 0
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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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// ^ push 0
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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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// ^ push 0
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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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// ^ push 0
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// ^ push 0 * 5
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// push constant 4001
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@4001
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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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// pop pointer THIS
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@SP
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A = M
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A = A - 1
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D = M
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@SP
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M = M - 1
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@THIS
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M = D
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// ^ pop into THIS
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// push constant 5001
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@5001
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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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// pop pointer THAT
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@SP
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A = M
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A = A - 1
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D = M
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@SP
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M = M - 1
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@THAT
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M = D
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// ^ pop into THAT
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// push constant 200
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@200
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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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// pop local 1
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@1
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D = A
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@LCL
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A = M
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D = D + A
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@R13
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M = D
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// ^ R13 = local + index
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@SP
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A = M
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A = A - 1
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D = M
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@SP
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M = M - 1
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// ^ pop into D
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@R13
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A = M
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M = D
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// ^ *R13 = D
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// push constant 40
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@40
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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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// pop local 2
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@2
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D = A
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@LCL
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A = M
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D = D + A
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@R13
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M = D
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// ^ R13 = local + index
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@SP
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A = M
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A = A - 1
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D = M
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@SP
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M = M - 1
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// ^ pop into D
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@R13
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A = M
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M = D
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// ^ *R13 = D
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// push constant 6
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@6
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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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// pop local 3
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@3
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D = A
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@LCL
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A = M
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D = D + A
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@R13
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M = D
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// ^ R13 = local + index
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@SP
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A = M
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A = A - 1
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D = M
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@SP
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M = M - 1
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// ^ pop into D
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@R13
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A = M
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M = D
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// ^ *R13 = D
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// push constant 123
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@123
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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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// call Sys.add12 1
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@Sys.add12:return:2
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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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// ^ push return-address
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@LCL
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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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// ^ push lcl
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@ARG
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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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// ^ push arg
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@THIS
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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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// ^ push this
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@THAT
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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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// ^ push that
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@SP
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D = M
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@1
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D = D - A
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@5
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D = D - A
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@ARG
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M = D
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// ^ ARG = SP - 1 - 5
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@SP
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D = M
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@LCL
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M = D
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// ^ LCL = SP
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@Sys.add12
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0;JMP
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// ^ goto Sys.add12
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(Sys.add12:return:2)
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// pop temp 0
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@0
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D = A
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@5
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A = D + A
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D = A
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@R13
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M = D
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// ^ R13 = temp + index
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@SP
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A = M
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A = A - 1
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D = M
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@SP
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M = M - 1
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// ^ pop into D
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@R13
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A = M
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M = D
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// ^ *R13 = D
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// push local 0
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@0
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D = A
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@LCL
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A = M
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A = D + A
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D = M
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// ^ D = *(LCL + index)
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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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// ^ push D
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// push local 1
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@1
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D = A
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@LCL
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A = M
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A = D + A
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D = M
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// ^ D = *(LCL + index)
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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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// ^ push D
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// push local 2
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@2
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D = A
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@LCL
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A = M
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A = D + A
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D = M
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// ^ D = *(LCL + index)
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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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// ^ push D
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// push local 3
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@3
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D = A
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@LCL
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A = M
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A = D + A
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D = M
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// ^ D = *(LCL + index)
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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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// ^ push D
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// push local 4
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@4
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D = A
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@LCL
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A = M
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A = D + A
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D = M
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// ^ D = *(LCL + index)
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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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// ^ push D
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// add
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@SP
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A = M
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A = A - 1
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A = A - 1
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D = M
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A = A + 1
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D = D + M
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A = A - 1
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M = D
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@SP
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M = M - 1
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// add
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@SP
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A = M
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A = A - 1
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A = A - 1
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D = M
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A = A + 1
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D = D + M
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A = A - 1
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M = D
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@SP
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M = M - 1
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// add
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@SP
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A = M
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A = A - 1
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A = A - 1
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D = M
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A = A + 1
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D = D + M
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A = A - 1
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M = D
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@SP
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M = M - 1
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// add
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@SP
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A = M
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A = A - 1
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A = A - 1
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D = M
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A = A + 1
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D = D + M
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A = A - 1
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M = D
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@SP
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M = M - 1
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// return
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@LCL
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D = M
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@R13
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M = D
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// ^ R13 = FRAME = LCL
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@5
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D = A
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@R13
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A = M - D
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D = M
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@R14
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M = D
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// ^ R14 = RET = *(FRAME - 5)
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@SP
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A = M
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A = A - 1
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D = M
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@SP
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M = M - 1
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@ARG
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A = M
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M = D
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// ^ POP into *ARG
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@ARG
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D = M + 1
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@SP
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M = D
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// ^ SP = ARG + 1
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@1
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D = A
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@R13
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A = M - D
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D = M
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@THAT
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M = D
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// ^ THAT = *(FRAME - 1)
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@2
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D = A
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@R13
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A = M - D
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D = M
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@THIS
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M = D
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// ^ THIS = *(FRAME - 2)
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@3
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D = A
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@R13
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A = M - D
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D = M
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@ARG
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M = D
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// ^ ARG = *(FRAME - 3)
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@4
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D = A
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@R13
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A = M - D
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D = M
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@LCL
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M = D
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// ^ LCL = *(FRAME - 4)
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@R14
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A = M
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0;JMP
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// ^ goto RET
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// function Sys.add12 0
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(Sys.add12)
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@0
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D = A
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// ^ push 0 * 0
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// push constant 4002
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@4002
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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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// pop pointer THIS
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@SP
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A = M
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A = A - 1
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D = M
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@SP
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M = M - 1
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@THIS
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M = D
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// ^ pop into THIS
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// push constant 5002
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@5002
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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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// pop pointer THAT
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@SP
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A = M
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A = A - 1
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D = M
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@SP
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M = M - 1
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@THAT
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M = D
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// ^ pop into THAT
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// push argument 0
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@0
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D = A
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@ARG
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A = M
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A = D + A
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D = M
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// ^ D = *(ARG + index)
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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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// ^ push D
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// push constant 12
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@12
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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
|
|
M = M + 1
|
|
|
|
// add
|
|
@SP
|
|
A = M
|
|
A = A - 1
|
|
A = A - 1
|
|
D = M
|
|
A = A + 1
|
|
D = D + M
|
|
A = A - 1
|
|
M = D
|
|
@SP
|
|
M = M - 1
|
|
|
|
// return
|
|
@LCL
|
|
D = M
|
|
@R13
|
|
M = D
|
|
// ^ R13 = FRAME = LCL
|
|
@5
|
|
D = A
|
|
@R13
|
|
A = M - D
|
|
D = M
|
|
@R14
|
|
M = D
|
|
// ^ R14 = RET = *(FRAME - 5)
|
|
@SP
|
|
A = M
|
|
A = A - 1
|
|
D = M
|
|
@SP
|
|
M = M - 1
|
|
@ARG
|
|
A = M
|
|
M = D
|
|
// ^ POP into *ARG
|
|
@ARG
|
|
D = M + 1
|
|
@SP
|
|
M = D
|
|
// ^ SP = ARG + 1
|
|
@1
|
|
D = A
|
|
@R13
|
|
A = M - D
|
|
D = M
|
|
@THAT
|
|
M = D
|
|
// ^ THAT = *(FRAME - 1)
|
|
@2
|
|
D = A
|
|
@R13
|
|
A = M - D
|
|
D = M
|
|
@THIS
|
|
M = D
|
|
// ^ THIS = *(FRAME - 2)
|
|
@3
|
|
D = A
|
|
@R13
|
|
A = M - D
|
|
D = M
|
|
@ARG
|
|
M = D
|
|
// ^ ARG = *(FRAME - 3)
|
|
@4
|
|
D = A
|
|
@R13
|
|
A = M - D
|
|
D = M
|
|
@LCL
|
|
M = D
|
|
// ^ LCL = *(FRAME - 4)
|
|
@R14
|
|
A = M
|
|
0;JMP
|
|
// ^ goto RET
|
|
|
|
|