FreeCalypso > hg > freecalypso-tools
view target-utils/libc/memcmp.S @ 405:ed9b67e7e741
fcup-smsend: fixed bug in the handling of -W with no dest address argument
The original code checked for argv[optind+1] when argv[optind] is NULL;
on most systems this bogus code gets the first line of the environment,
which is clearly not what we are after. Fixed the code to check argc
instead.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sat, 11 Aug 2018 18:59:54 +0000 |
parents | a675cec34076 |
children |
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.text .code 32 .globl bcmp .globl memcmp bcmp: memcmp: cmp r2, #0 beq zero_len_out mov r3, r0 1: ldrb r0, [r3], #1 ldrb r12, [r1], #1 subs r0, r0, r12 bxne lr subs r2, r2, #1 bne 1b bx lr zero_len_out: mov r0, #0 bx lr