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format ELF64 executable
macro genclass class, class_len, caps
{
;; Generate 16 bits (smallest) of randomness from the cpu
rdrand ax
;; Modulo into len range to index in
xor rdx, rdx
mov rbx, class_len
div bx
;; Save output letter into out_buf, bump rcx
add rdx, class
mov rdx, [rdx]
if caps eq 1
sub rdx, 32
end if
mov [rcx], rdx
inc rcx
inc rsi
}
macro triplet
{
genclass consonants, consonants_len
genclass vowels, vowels_len
genclass consonants, consonants_len
}
segment readable executable
entry main
main:
;; Store which output byte we're up to in rcx
mov rcx, out_buf
;; Store chars generated in rsi
xor rsi, rsi
genclass consonants, consonants_len, 1
genclass vowels, vowels_len
genclass consonants, consonants_len
triplet
triplet
genclass symbols, symbols_len
genclass symbols, symbols_len
genclass numbers, numbers_len
genclass numbers, numbers_len
genclass numbers, numbers_len
mov [rcx], word 10
inc rsi
;; Write
mov rdi, 1 ;; stdout
mov rdx, rsi
mov rsi, out_buf
mov rax, 0x01
syscall
;; Exit (code 0)
mov rdi, 0
mov rax, 0x3c
syscall
segment readable writeable
numbers db "0123456789"
numbers_len = $ - numbers
vowels db "aeiou"
vowels_len = $ - vowels
consonants db "bcdfghjklmnpqrstvwxyz"
consonants_len = $ - consonants
symbols db "!@#$%&()-=_+[]{}\\|;<>/?."
symbols_len = $ - symbols
out_buf rb 32
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