// Test Hack Assembly file for syntax highlighting
// This file demonstrates various Hack Assembly features

// Simple A-instruction with constant
@17
D=A

// A-instruction with symbol
@sum
M=D

// C-instruction with all parts: dest=comp;jump
@i
D=M
@LOOP
D;JGT

// Label declaration
(LOOP)

// Various computation operations
@sum
D=M
@i
D=D+M
@sum
M=D

// Memory operations
@R0
D=M
@temp
M=D

// Predefined symbols
@SP
M=M+1
@LCL
D=M
@ARG
M=D

// Screen and keyboard
@SCREEN
D=A
@KBD
M=M+1

// Complex computations
D=D+1
D=D-1
D=!D
D=-D
A=D+A
M=D&A
D=D|M

// Jump conditions
@END
0;JMP

@value
D=M
@POSITIVE
D;JGT

@ZERO
D;JEQ

@NEGATIVE
D;JLT

(POSITIVE)
// Positive value handling
@1
D=A
@result
M=D
@END
0;JMP

(ZERO)
// Zero value handling
@0
D=A
@result
M=D
@END
0;JMP

(NEGATIVE)
// Negative value handling
@-1
D=A
@result
M=D

(END)
// Infinite loop
@END
0;JMP

// Variable declarations (will be resolved by assembler)
@counter
@total
@average