48 lines
706 B
NASM
48 lines
706 B
NASM
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; Global strings demonstration for Linux.
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format ELF64 executable 3
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entry start
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include 'globstr.inc'
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include 'macro/inline.inc'
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inlinemacro GLOB(value&)
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local data
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data GLOBSTR value,0
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return equ data
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end inlinemacro
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segment readable executable
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start:
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lea rsi,[GLOB("Hello, it's ")]
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call display_string
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mov rsi,[rsp+8] ; argv
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call display_string
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lea rsi,[GLOB(' speaking.',10)]
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call display_string
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xor edi,edi ; exit code 0
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mov eax,60 ; sys_exit
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syscall
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display_string: ; rsi = address of ASCIIZ string
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xor al,al
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mov rdi,rsi
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or rcx,-1
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repne scasb
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neg rcx
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sub rcx,2
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mov edi,1
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mov eax,1 ; sys_write
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mov rdx,rcx
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syscall
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retn
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segment readable
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GLOBSTR.here
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