diff options
Diffstat (limited to 'mdk-stage1/dietlibc/i386/atol.S')
| -rw-r--r-- | mdk-stage1/dietlibc/i386/atol.S | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/mdk-stage1/dietlibc/i386/atol.S b/mdk-stage1/dietlibc/i386/atol.S new file mode 100644 index 000000000..5bd7f2c24 --- /dev/null +++ b/mdk-stage1/dietlibc/i386/atol.S @@ -0,0 +1,55 @@ +/* + Copyright (C) 2001, 2002 Thomas M. Ogrisegg + + This is free software. You can redistribute and + modify it under the terms of the GNU General Public + Public License. + + atol.S + i386 assembler implementation of atoi(3) & atol(3) +*/ + +.text +.globl atoi +.globl atol +.type atoi,@function +.type atol,@function + +atoi: +atol: + pushl %esi + movl 0x8(%esp), %esi + xorl %eax, %eax + xorl %edx, %edx + xorb %cl, %cl +.LSpace: + lodsb + cmpb $0x21, %al + jng .LSpace + cmpb $'+', %al + jz .Lfe5 + cmpb $'-', %al + jnz .Lfe3 + inc %cl + jmp .Lfe5 +.Lfe2: + imul $0xa, %edx + addl %eax, %edx +.Lfe5: + lodsb +.Lfe3: + cmpb $47, %al + jng .Lout + subb $('0'), %al + cmpb $9, %al + jng .Lfe2 +.Lout: + movl %edx, %eax + or %cl, %cl + jz .Lreturn + negl %eax +.Lreturn: + popl %esi + ret +.size atoi, . - atoi +.size atol, . - atol |