Init nand2tetris
This commit is contained in:
376
tools/OS/Memory.vm
Normal file
376
tools/OS/Memory.vm
Normal file
@@ -0,0 +1,376 @@
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function Memory.init 0
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push constant 0
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pop static 0
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push constant 2048
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push static 0
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add
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push constant 14334
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pop temp 0
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pop pointer 1
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push temp 0
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pop that 0
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push constant 2049
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push static 0
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add
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push constant 2050
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pop temp 0
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pop pointer 1
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push temp 0
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pop that 0
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push constant 0
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return
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function Memory.peek 0
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push argument 0
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push static 0
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add
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pop pointer 1
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push that 0
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return
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function Memory.poke 0
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push argument 0
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push static 0
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add
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push argument 1
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pop temp 0
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pop pointer 1
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push temp 0
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pop that 0
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push constant 0
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return
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function Memory.alloc 2
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push argument 0
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push constant 0
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lt
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if-goto IF_TRUE0
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goto IF_FALSE0
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label IF_TRUE0
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push constant 5
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call Sys.error 1
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pop temp 0
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label IF_FALSE0
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push argument 0
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push constant 0
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eq
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if-goto IF_TRUE1
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goto IF_FALSE1
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label IF_TRUE1
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push constant 1
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pop argument 0
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label IF_FALSE1
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push constant 2048
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pop local 0
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label WHILE_EXP0
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push local 0
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push constant 16383
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lt
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push constant 0
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push local 0
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add
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pop pointer 1
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push that 0
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push argument 0
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lt
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and
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not
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if-goto WHILE_END0
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push constant 1
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push local 0
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add
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pop pointer 1
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push that 0
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pop local 1
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push constant 0
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push local 0
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add
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pop pointer 1
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push that 0
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push constant 0
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eq
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push local 1
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push constant 16382
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gt
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or
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push constant 0
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push local 1
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add
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pop pointer 1
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push that 0
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push constant 0
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eq
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or
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if-goto IF_TRUE2
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goto IF_FALSE2
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label IF_TRUE2
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push local 1
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pop local 0
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goto IF_END2
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label IF_FALSE2
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push constant 0
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push local 0
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add
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push constant 1
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push local 0
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add
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pop pointer 1
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push that 0
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push local 0
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sub
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push constant 0
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push local 1
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add
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pop pointer 1
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push that 0
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add
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pop temp 0
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pop pointer 1
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push temp 0
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pop that 0
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push constant 1
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push local 1
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add
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pop pointer 1
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push that 0
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push local 1
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push constant 2
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add
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eq
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if-goto IF_TRUE3
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goto IF_FALSE3
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label IF_TRUE3
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push constant 1
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push local 0
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add
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push local 0
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push constant 2
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add
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pop temp 0
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pop pointer 1
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push temp 0
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pop that 0
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goto IF_END3
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label IF_FALSE3
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push constant 1
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push local 0
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add
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push constant 1
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push local 1
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add
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pop pointer 1
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push that 0
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pop temp 0
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pop pointer 1
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push temp 0
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pop that 0
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label IF_END3
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label IF_END2
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goto WHILE_EXP0
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label WHILE_END0
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push local 0
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push argument 0
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add
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push constant 16379
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gt
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if-goto IF_TRUE4
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goto IF_FALSE4
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label IF_TRUE4
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push constant 6
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call Sys.error 1
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pop temp 0
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label IF_FALSE4
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push constant 0
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push local 0
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add
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pop pointer 1
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push that 0
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push argument 0
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push constant 2
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add
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gt
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if-goto IF_TRUE5
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goto IF_FALSE5
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label IF_TRUE5
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push argument 0
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push constant 2
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add
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push local 0
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add
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push constant 0
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push local 0
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add
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pop pointer 1
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push that 0
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push argument 0
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sub
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push constant 2
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sub
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pop temp 0
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pop pointer 1
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push temp 0
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pop that 0
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push constant 1
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push local 0
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add
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pop pointer 1
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push that 0
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push local 0
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push constant 2
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add
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eq
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if-goto IF_TRUE6
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goto IF_FALSE6
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label IF_TRUE6
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push argument 0
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push constant 3
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add
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push local 0
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add
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push local 0
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push argument 0
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add
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push constant 4
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add
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pop temp 0
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pop pointer 1
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push temp 0
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pop that 0
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goto IF_END6
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label IF_FALSE6
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push argument 0
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push constant 3
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add
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push local 0
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add
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push constant 1
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push local 0
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add
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pop pointer 1
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push that 0
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pop temp 0
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pop pointer 1
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push temp 0
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pop that 0
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label IF_END6
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push constant 1
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push local 0
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add
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push local 0
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push argument 0
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add
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push constant 2
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add
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pop temp 0
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pop pointer 1
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push temp 0
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pop that 0
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label IF_FALSE5
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push constant 0
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push local 0
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add
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push constant 0
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pop temp 0
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pop pointer 1
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push temp 0
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pop that 0
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push local 0
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push constant 2
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add
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return
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function Memory.deAlloc 2
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push argument 0
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push constant 2
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sub
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pop local 0
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push constant 1
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push local 0
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add
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pop pointer 1
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push that 0
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pop local 1
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push constant 0
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push local 1
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add
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pop pointer 1
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push that 0
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push constant 0
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eq
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if-goto IF_TRUE0
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goto IF_FALSE0
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label IF_TRUE0
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push constant 0
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push local 0
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add
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push constant 1
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push local 0
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add
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pop pointer 1
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push that 0
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push local 0
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sub
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push constant 2
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sub
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pop temp 0
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pop pointer 1
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push temp 0
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pop that 0
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goto IF_END0
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label IF_FALSE0
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push constant 0
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push local 0
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add
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push constant 1
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push local 0
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add
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pop pointer 1
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push that 0
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push local 0
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sub
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push constant 0
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push local 1
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add
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pop pointer 1
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push that 0
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add
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pop temp 0
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pop pointer 1
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push temp 0
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pop that 0
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push constant 1
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push local 1
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add
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pop pointer 1
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push that 0
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push local 1
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push constant 2
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add
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eq
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if-goto IF_TRUE1
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goto IF_FALSE1
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label IF_TRUE1
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push constant 1
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push local 0
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add
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push local 0
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push constant 2
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add
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pop temp 0
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pop pointer 1
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push temp 0
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pop that 0
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goto IF_END1
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label IF_FALSE1
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push constant 1
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push local 0
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add
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push constant 1
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push local 1
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add
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pop pointer 1
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push that 0
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pop temp 0
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pop pointer 1
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push temp 0
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pop that 0
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label IF_END1
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label IF_END0
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push constant 0
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return
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