; fasm example_flat_assembly.fasm example_flat_assembly && chmod +x example_flat_assembly

format ELF64 executable 3

entry main

TERMINAL_INPUT  = 0
TERMINAL_OUTPUT = 1

EXIT_SUCCESS = 0
EXIT_FAILURE = 1

macro write file, data, size {
	mov rax, 1
	mov rdi, file
	mov rsi, data
	mov rdx, size
	syscall
}

macro exit code {
	mov rax, 60
	mov rdi, code
	syscall
}

segment readable executable

colour:
	write TERMINAL_OUTPUT, colour_red, 7
	ret

cancel:
	write TERMINAL_OUTPUT, colour_end, 4
	ret

main:
	call colour
	write TERMINAL_OUTPUT, string, length
	call cancel
	exit EXIT_SUCCESS

segment readable writable

colour_red db 27, "[1;31m"
colour_end db 27, "[0m"

string db "Heyo world!", 10, 0
length dq $ - string