/*
 *  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