ref: 930e65474d00875474af8b2a1ca3aaae9d46cace
dir: /rt/common.s/
.text /* * counts the length of the string pointed to * by %r8, returning len in %r9. Does not modify * any registers outside of %r9 */ cstrlen: xorq %r9,%r9 jmp .lentest .lenloop: incq %r9 .lentest: cmpb $0,(%r8,%r9) jne .lenloop ret /* * iterate over the strings for argc, and put * them into the args array. * * argc in %rax, argv in %rbx, dest vector in %rcx */ cvt: jmp .cvttest .cvtloop: subq $1,%rax movq (%rbx),%r8 call cstrlen movq %r8, (%rcx) movq %r9, 8(%rcx) addq $8, %rbx addq $16, %rcx .cvttest: testq %rax,%rax jnz .cvtloop .cvtdone: ret