55 lines
805 B
NASM
55 lines
805 B
NASM
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;macros as per 64 bit conventions
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%macro read 2
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mov rax,0 ;read
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mov rdi,0 ;stdin/keyboard
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mov rsi,%1 ;buf
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mov rdx,%2 ;buf_len
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syscall
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%endmacro
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%macro print 2
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mov rax,1 ;print
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mov rdi,1 ;stdout/screen
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mov rsi,%1 ;msg
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mov rdx,%2 ;msg_len
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syscall
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%endmacro
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%macro fopen 1
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mov rax,2 ;open
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mov rdi,%1 ;filename
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mov rsi,2 ;mode RW
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mov rdx,0777o ;File permissions
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syscall
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%endmacro
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%macro fread 3
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mov rax,0 ;read
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mov rdi,%1 ;filehandle
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mov rsi,%2 ;buf
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mov rdx,%3 ;buf_len
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syscall
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%endmacro
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%macro fwrite 3
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mov rax,1 ;write/print
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mov rdi,%1 ;filehandle
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mov rsi,%2 ;buf
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mov rdx,%3 ;buf_len
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syscall
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%endmacro
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%macro fclose 1
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mov rax,3 ;close
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mov rdi,%1 ;file handle
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syscall
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%endmacro
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%macro exit 0
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print nline,nline_len
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mov rax,60 ;exit
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mov rdi,0
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syscall
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%endmacro
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