;;===================================================================
;; Copyright 2011 dunkaist <dunkaist@gmail.com>
;; Distributed under the terms of the GNU General Public License v3.
;; See http://www.gnu.org/licenses/gpl.txt for the full license text.
;;-------------------------------------------------------------------
CHAR1TXT_FILE_SIZE equ 20478
CHAR2TXT_FILE_SIZE equ 25598
CHAR1MT_FILE_SIZE equ 2304
CHAR2MT_FILE_SIZE equ 2560
FONT_HEIGHT equ 9
FONT_WIDTH_MONO equ 5
FONT_WIDTH_VAR equ 7
use32
org 0x0
db 'MENUET01'
dd 0x01, start, i_end, e_end, stacktop, 0x0, cur_dir
include '../../proc32.inc'
include '../../macros.inc'
start:
mcall 68, 11
cld
mov ecx, 4096
mov edi, cur_dir
xor al, al
repnz scasb
std
mov al, '/'
repnz scasb
add edi, 2
cld
mov [cur_dir_slash], edi
mov esi, _char1.txt
mov ecx, 10/2
rep movsw
monospace:
mcall 70, func70 ; get file info
test eax, eax
jnz quit
mov ecx, dword[file_info.Size]
cmp ecx, CHAR1TXT_FILE_SIZE
jl quit
mov [func70.bytes_to_read], ecx
mcall 68, 12, ; allocate memory for char.txt
test eax, eax
jz quit
mov [func70.destination], eax
mov [func70.func_number], 0 ; read from file
mcall 70, func70
test eax, eax
jnz freemem_quit
xor dl, dl
mov esi, [func70.destination]
mov edi, esi ; yes, that's a feature
mov bl, FONT_WIDTH_MONO
.char:
add esi, 8
call do_symbol
dec dl
jnz .char
mov [func70.func_number], 2 ; create/overwrite file
mov [func70.bytes_to_read], CHAR1MT_FILE_SIZE
mov edi, [cur_dir_slash]
mov esi, _char1.mt
mov ecx, 10/2
rep movsw
mcall 70, func70
test eax, eax
jnz freemem_quit
varspace:
push [func70.destination]
push file_info
pop [func70.destination]
mov [func70.func_number], 5 ; get file info
mov edi, [cur_dir_slash]
mov esi, _char2.txt
mov ecx, 10/2
rep movsw
mcall 70, func70
pop [func70.destination]
test eax, eax
jnz freemem_quit
mov ecx, dword[file_info.Size]
cmp ecx, CHAR2TXT_FILE_SIZE
jl freemem_quit
mov [func70.bytes_to_read], ecx
mcall 68, 20, ; realloc memory
test eax, eax
jz freemem_quit
mov [func70.destination], eax
mov [func70.func_number], 0 ; read from file
mcall 70, func70
test eax, eax
jnz freemem_quit
xor dl, dl
mov esi, [func70.destination]
mov edi, esi ; yes, that's a feature
mov bl, FONT_WIDTH_VAR
.char:
add esi, 6
lodsb
cmp al, ' ' ; space means default symbol width (8)
jnz @f
mov al, 8+47
@@: sub al, 47
stosb
add esi, 3
call do_symbol
dec dl
jnz .char
mov [func70.func_number], 2 ; create/overwrite file
mov [func70.bytes_to_read], CHAR2MT_FILE_SIZE
mov edi, [cur_dir_slash]
mov esi, _char2.mt
mov ecx, 10/2
rep movsw
mcall 70, func70
test eax, eax
jnz freemem_quit
freemem_quit:
mcall 68, 13, [func70.destination]
quit:
mcall -1
proc do_symbol
mov ch, FONT_HEIGHT
.col: xor ah, ah
xor cl, cl
.row: lodsb
cmp al, ' '
setnz al
shl al, cl
or ah, al
inc cl
cmp cl, bl
jnz .row
add esi, 3
mov al, ah
stosb
dec ch
jnz .col
ret
endp
_char1.txt db 'char.txt',0
_char2.txt db 'char2.txt',0
_char1.mt db 'char.mt',0
_char2.mt db 'char2.mt',0
func70:
.func_number dd 5 ; function number
.position dd 0 ; position in file
.reserved dd 0 ; reserved
.bytes_to_read dd 0 ; bytes to read
.destination dd file_info
.flag db 0 ; see file name later
.file_name dd cur_dir ; pointer to the name of file (ASCIIZ)
i_end:
file_info FILEINFO
cur_dir rb 4096
cur_dir_slash rd 1 ; we save here position of the last '/' symbol
stack_here rb 0x200
stacktop:
e_end: