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/*
* PSX-Tools Bundle Pack
* Copyright (C) 2002 Nicolas "Pixel" Noble
*
* 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
*/
.text
.align 4
.global dte_reset
.type dte_reset, @function
dte_reset:
push %ecx
push %edi
movl $0x10000, %ecx
movl $dte_counters, %edi
xorl %eax, %eax
rep stosl
movl %eax, dte_counter
movl %eax, dte_most
pop %edi
pop %ecx
ret
.global build_dte
.type build_dte, @function
build_dte:
push %eax
push %ebx
push %ecx
push %edx
push %esi
push %edi
movl dte_text_size, %ecx
movl dte_text, %esi
movl $dte_flags, %edi
movl $dte_counters, %ebx
lodsl
movl %eax, %edx
jmp innerjump
loop:
lodsb
shrd $8, %eax, %edx
innerjump:
push %edx
andl $0xffff, %edx
testb $0xff, (%edi, %edx)
jp twice
jnz invalid
incl (%ebx, %edx, 4)
movl (%ebx, %edx, 4), %eax
cmpl %eax, dte_counter
ja invalid
movl %edx, dte_most
movl %eax, dte_counter
invalid:
pop %edx
decl %ecx
jnz loop
quit:
pop %edi
pop %esi
pop %edx
pop %ecx
pop %ebx
pop %eax
ret
twice:
decl %ecx
jnz invalid
pop %edx
jmp quit
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