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# Copyright (C) 2000 MySQL AB
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
# Optimized longlong2str function for Intel 80x86 (gcc/gas syntax)
# Some set sequences are optimized for pentuimpro II
.file "longlong2str.s"
.version "1.01"
.text
.align 4
.globl longlong2str
.type longlong2str,@function
longlong2str:
subl $80,%esp
pushl %ebp
pushl %esi
pushl %edi
pushl %ebx
movl 100(%esp),%esi # Lower part of val
movl 104(%esp),%ebp # Higher part of val
movl 108(%esp),%edi # get dst
movl 112(%esp),%ebx # Radix
movl %ebx,%eax
testl %eax,%eax
jge .L144
addl $36,%eax
cmpl $34,%eax
ja .Lerror # Wrong radix
testl %ebp,%ebp
jge .L146
movb $45,(%edi) # Add sign
incl %edi # Change sign of val
negl %esi
adcl $0,%ebp
negl %ebp
.L146:
negl %ebx # Change radix to positive
jmp .L148
.align 4
.L144:
addl $-2,%eax
cmpl $34,%eax
ja .Lerror # Radix in range
.L148:
movl %esi,%eax # Test if zero (for easy loop)
orl %ebp,%eax
jne .L150
movb $48,(%edi)
incl %edi
jmp .L164
.align 4
.L150:
leal 92(%esp),%ecx # End of buffer
jmp .L155
.align 4
.L153:
# val is stored in in ebp:esi
movl %ebp,%eax # High part of value
xorl %edx,%edx
divl %ebx
movl %eax,%ebp
movl %esi,%eax
divl %ebx
movl %eax,%esi # quotent in ebp:esi
movb _dig_vec(%edx),%al # al is faster than dl
decl %ecx
movb %al,(%ecx) # store value in buff
.align 4
.L155:
testl %ebp,%ebp
ja .L153
testl %esi,%esi # rest value
jl .L153
je .L160 # Ready
movl %esi,%eax
movl $_dig_vec,%ebp
.align 4
.L154: # Do rest with integer precision
cltd
divl %ebx
decl %ecx
movb (%edx,%ebp),%dl # bh is always zero as ebx=radix < 36
testl %eax,%eax
movb %dl,(%ecx)
jne .L154
.L160:
movl %ecx,%esi
leal 92(%esp),%ecx # End of buffer
subl %esi,%ecx
rep
movsb
.L164:
movl %edi,%eax # Pointer to end null
movb $0,(%edi) # Store the end null
.L165:
popl %ebx
popl %edi
popl %esi
popl %ebp
addl $80,%esp
ret
.Lerror:
xorl %eax,%eax # Wrong radix
jmp .L165
.Lfe3:
.size longlong2str,.Lfe3-longlong2str
.globl longlong10_to_str
.type longlong10_to_str,@function
longlong10_to_str:
jmp longlong2str
.L10end:
.size longlong10_to_str,.L10end-longlong10_to_str
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