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bincode.asm
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bincode.asm
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bits 32
extern jpeg_get_size
extern jpeg_decode
global _start
%define debug 1
%include "vocabulary.inc"
%include "modplay_defines.inc"
%include "jpeg.inc"
; some type definitions from mkbootmsg.c
; struct file_header_t
fh_magic_id equ 0
fh_version equ 4
fh_res_1 equ 5
fh_res_2 equ 6
fh_res_3 equ 7
fh_bincode equ 8
fh_bincode_size equ 12
fh_bincode_crc equ 16
fh_dict equ 20
fh_code equ 24
fh_code_size equ 28
sizeof_file_header_t equ 32
; font file header definition
foh.magic equ 0
foh.entries equ 4
foh.height equ 8
foh.baseline equ 9
foh.line_height equ 10
foh.size equ 11
; char bitmap definitions
; must match values in mkblfont.c
cbm_gray_bits equ 4
cbm_gray_bit_count equ 3
cbm_max_gray equ (1 << cbm_gray_bits) - 3
cbm_rep_black equ cbm_max_gray + 1
cbm_rep_white equ cbm_max_gray + 2
; struct playlist
pl_file equ 0 ; actually file index + 1
pl_loop equ 1
pl_res1 equ 2
pl_res2 equ 3
pl_start equ 4
pl_current equ 8
pl_end equ 12
sizeof_playlist equ 16
playlist_entries equ 4
; struct link
li.label equ 0
li.text equ 4
li.x equ 8
li.row equ 10
li.size equ 12 ; search for 'li.size'!
link_entries equ 64
; sysconfig data (64 bytes [sc.size])
sc.bootloader equ 0
sc.sector_shift equ 1
sc.media_type equ 2
sc.failsafe equ 3
sc.sysconfig_size equ 4
sc.boot_drive equ 5
sc.callback equ 6
sc.bootloader_seg equ 8
sc.serial_port equ 10
sc.user_info_0 equ 12
sc.user_info_1 equ 16
sc.bios_mem_size equ 20
sc.xmem_0 equ 24
sc.xmem_1 equ 26
sc.xmem_2 equ 28
sc.xmem_3 equ 30
sc.file equ 32
sc.archive_start equ 36
sc.archive_end equ 40
sc.mem0_start equ 44
sc.mem0_end equ 48
sc.xmem_start equ 52
sc.xmem_end equ 56
sc.features equ 60
sc.reserved_1 equ 62
sc.cwd equ 64
sc.size equ 68
sc.size_64 equ 64 ; supports xmem_* & feature flags
sc.size_68 equ 68 ; supports cwd
; enum_type_t
t_none equ 0
t_int equ 1
t_unsigned equ 2
t_bool equ 3
t_string equ 4
t_code equ 5
t_ret equ 6
t_prim equ 7
t_sec equ 8
t_dict_idx equ 9
t_array equ 10
t_end equ 11
t_ptr equ 12
t_if equ t_code + 10h
t_loop equ t_code + 20h
t_repeat equ t_code + 30h
t_for equ t_code + 40h
t_forall equ t_code + 50h
t_exit equ t_code + 60h
param_stack_size equ 1000
ret_stack_size equ 1000
; various error codes
pserr_ok equ 0
pserr_nocode equ 1
pserr_invalid_opcode equ 2
pserr_pstack_underflow equ 3
pserr_pstack_overflow equ 4
pserr_rstack_underflow equ 5
pserr_rstack_overflow equ 6
pserr_invalid_dict equ 7
pserr_wrong_arg_types equ 8
pserr_div_by_zero equ 9
pserr_invalid_rstack_entry equ 0ah
pserr_invalid_range equ 0bh
pserr_invalid_exit equ 0ch
pserr_invalid_image_size equ 0dh
pserr_no_memory equ 0eh
pserr_invalid_data equ 0fh
pserr_nop equ 10h
pserr_invalid_function equ 11h
pserr_invalid_dict_entry equ 200h
pserr_invalid_prim equ 201h
keyBS equ 08h
keyLeft equ 4bh ; scan code
keyRight equ 4dh ; scan code
keyHome equ 47h ; scan code
keyEnd equ 4fh ; scan code
keyDel equ 53h ; scan code
max_text_rows equ 128
mhead.memsize equ 0
mhead.ip equ 4
mhead.used equ 8 ; bit 7
mhead.rem equ 8 ; bit 0..6
mhead.size equ 9
section .text
_start:
; jmp table to interface functions
jt_init dw gfx_init
jt_done dw gfx_done
jt_input dw gfx_input
jt_menu_init dw gfx_menu_init
jt_infobox_init dw gfx_infobox_init
jt_infobox_done dw gfx_infobox_done
jt_progress_init dw gfx_progress_init
jt_progress_done dw gfx_progress_done
jt_progress_update dw gfx_progress_update
jt_progress_limit dw gfx_progress_limit
jt_password_init dw gfx_password_init
jt_password_done dw gfx_password_done
align 4, db 0
file.start dd 0 ; the file we are in
archive.start dd 0 ; archive start address (0 -> none)
archive.end dd 0 ; archive end
mem0.start dd 0 ; free low memory area start
mem0.end dd 0 ; dto, end
malloc.areas equ 5
malloc.start dd 0
malloc.end dd 0
; start, end pairs
malloc.area times malloc.areas * 2 dd 0
vbe_buffer dd 0 ; (lin) buffer for vbe calls
vbe_mode_list dd 0 ; (lin) list with (up to 100h) vbe modes
vbe_info_buffer dd 0 ; (lin) buffer for vbe gfx card info
infobox_buffer dd 0 ; (lin) temp buffer for InfoBox messages
local_stack dd 0 ; ofs local stack (8k)
local_stack.ofs equ local_stack
local_stack.seg dw 0 ; dto, seg
old_stack dd 0 ; store old esp value
old_stack.ofs equ old_stack
old_stack.seg dw 0 ; dto, ss
stack.size dd 0 ; in bytes
tmp_stack_val dw 0 ; needed for stack switching
pscode_start dd 0 ; (lin)
pscode_size dd 0
pscode_instr dd 0 ; (lin) current instruction (rel. to pscode_start)
pscode_next_instr dd 0 ; (lin) next instruction
; for debugging only
pscode_next_break dd 0 ; (lin) break at this instruction
pscode_eval dd 0 ; opcode from exec instruction
pscode_error_arg_0 dd 0
pscode_error_arg_1 dd 0
pscode_arg dd 0 ; current arg
pscode_error dw 0 ; error code (if any)
pscode_type db 0 ; current instr type
align 4, db 0
dict dd 0 ; lin
dict.size dd 0 ; dict entries
boot.base dd 0 ; bootloader segment
boot.sysconfig dd 0 ; bootloader parameter block
boot.callback dd 0 ; seg:ofs
pstack dd 0 ; data stack
pstack.size dd 0 ; entries
pstack.ptr dd 0 ; index of current tos
rstack dd 0 ; code stack
rstack.size dd 0 ; entries
rstack.ptr dd 0 ; index of current tos
image dd 0 ; (lin) current image
image_width dw 0
image_height dw 0
image_type db 0 ; 0:no image, 1: pcx, 2:jpeg
pcx_line_starts dd 0 ; (lin) table of line starts
jpg_static_buf dd 0 ; (lin) tmp data for jpeg decoder
screen_width dw 0
screen_height dw 0
screen_vheight dw 0
screen_mem dw 0 ; mem in 64k
screen_line_len dd 0
setpixel dd setpixel_8 ; function that sets one pixel
setpixel_a dd setpixel_a_8 ; function that sets one pixel
setpixel_t dd setpixel_8 ; function that sets one pixel
setpixel_ta dd setpixel_a_8 ; function that sets one pixel
getpixel dd getpixel_8 ; function that gets one pixel
transp dd 0 ; transparency
align 4, db 0
; current font description
font dd 0 ; (lin)
font.entries dd 0 ; chars in font
font.height dw 0
font.baseline dw 0
font.line_height dw 0
font.properties db 0 ; bit 0: pw mode (show '*')
font.res1 db 0 ; alignment
; console font
cfont.lin dd 0 ; console font bitmap
cfont_height dd 0
con_x dw 0 ; cursor pos in pixel
con_y dw 0 ; cursor pos in pixel, *must* follow con_x
; current char description
chr.buf dd 0 ; buffer for antialiased fonts
chr.buf_len dd 0
chr.pixel_buf dd 0
chr.data dd 0 ; encoded char data
chr.bitmap dd 0 ; start of encoded bitmap; bit offset rel to chr.data
chr.bitmap_width dw 0
chr.bitmap_height dw 0
chr.x_ofs dw 0
chr.y_ofs dw 0 ; rel. to baseline
chr.x_advance dw 0
chr.type db 0 ; 0 = bitmap, 1: gray scale
chr.gray_values:
%assign i 0
%rep cbm_max_gray + 1
db (i * 255)/cbm_max_gray
%assign i i + 1
%endrep
utf8_buf times 8 db 0
; pointer to currently active palette (3*100h bytes)
gfx_pal dd 0 ; (lin)
; pointer to tmp area (3*100h bytes)
gfx_pal_tmp dd 0 ; (lin)
; number of fixed pal values
pals dw 0
; the current gfx mode
gfx_mode dw 3
; != 0 if we're using a vbe mode (hi byte of gfx_mode)
vbe_active equ gfx_mode + 1
pixel_bits db 0 ; pixel size (8 or 16)
color_bits db 0 ; color bits (8, 15 or 16)
pixel_bytes dd 0 ; pixel size in bytes
; segment address of writeable window
window_seg_w dw 0
; segment address of readable window (= gfx_window_seg_w if 0)
window_seg_r dw 0
; ganularity units per window
window_inc db 0
; currently mapped window
mapped_window db 0
; cursor position
gfx_cur equ $ ; both x & y
gfx_cur_x dw 0
gfx_cur_y dw 0 ; must follow gfx_cur_x
gfx_width dw 0
gfx_height dw 0
line_wrap dd 0
gfx_indent dw 0
; clip region (incl)
clip_l dw 0 ; left, incl
clip_r dw 0 ; right, excl
clip_t dw 0 ; top, incl
clip_b dw 0 ; bottom, excl
line_x0 dd 0
line_y0 dd 0
line_x1 dd 0
line_y1 dd 0
line_tmp dd 0
line_tmp2 dd 0
align 4, db 0
gfx_color dd 0 ; current color
gfx_color0 dd 0 ; color #0 (normal color))
gfx_color1 dd 0 ; color #1 (highlight color)
gfx_color2 dd 0 ; color #2 (link color)
gfx_color3 dd 0 ; color #3 (selected link color)
gfx_color_rgb dd 0 ; current color (rgb)
transparent_color dd -1
char_eot dd 0 ; 'end of text' char
last_label dd 0 ; lin
page_title dd 0 ; lin
max_rows dd 0 ; max. number of text rows
cur_row dd 0 ; current text row (0 based)
cur_row2 dd 0 ; dto, only during formatting
start_row dd 0 ; start row for text output
cur_link dd 0 ; link count
sel_link dd 0 ; selected link
txt_state db 0 ; bit 0: 1 = skip text
; bit 1: 1 = text formatting only
textmode_color db 7 ; fg color for text (debug) output
keep_mode db 0 ; keep video mode in gfx_done
align 4, db 0
idle.draw_buffer dd 0 ; some drawing buffer
idle.data1 dd 0 ; some data
idle.data2 dd 0 ; some more data
idle.run db 0 ; run idle loop
idle.invalid db 0 ; idle loop has been left
align 4, db 0
fname.tmp dd 0 ; tmp buffer for fname processing
fname.abs dd 0 ; tmp buffer for abs fname processing
fname.cwd dd 0 ; current working dir
fname.sys_cwd dd 0 ; real cwd (bootloader's view)
fname.size equ 256 ; buffer size of fname.*
align 4, db 0
row_text times max_text_rows dd 0
ind_text times max_text_rows dw 0
; note: link_list relies on row_start
link_list times li.size * link_entries db 0
; max label size: 32
label_buf times 35 db 0
; buffer for number conversions
; must be large enough for ps_status_info()
num_buf times 23h db 0
num_buf_end db 0
; temp data for printf
tmp_write_data times 10h dd 0
tmp_write_num dd 0
tmp_write_sig db 0
tmp_write_cnt db 0
tmp_write_pad db 0
pf_gfx db 0
pf_gfx_raw_char db 0
pf_gfx_err dw 0
align 4, db 0
pf_gfx_buf dd 0
pf_gfx_max dd 0
pf_gfx_cnt dd 0
input_notimeout db 0
align 4, db 0
input_timeout_start dd 0
input_timeout dd 0
progress_max dd 0
progress_current dd 0
edit_x dw 0
edit_y dw 0
edit_width dw 0
edit_height dw 0
edit_bg dd 0 ; (lin)
edit_buf dd 0 ; (lin)
edit_buf_len dw 0
edit_buf_ptr dw 0
edit_flags dd 0 ; bit 0: cursor visible
; bit 1: complete redraw needed
edit_saved_cursor dd 0 ; (lin)
edit_cursor dw 0 ; cursor pos in pixel
edit_shift dw 0
edit_y_ofs dw 0
edit_length dw 0 ; string length in pixel
kbd_status dw 0
sl.port equ 0
sl.baud equ 2
sl.scancode equ 4
sl.status equ 5 ; bits:
; 0: valid config
; 1: input received
; 2: baud autodetect
sl.recv_mask equ 6 ; for autodetect
sl.recv_cnt equ 7 ; dto.
sl.baud_idx equ 8 ; dto.
sl.size equ 9
; 5 serial lines
serial.lines.max equ 5
serial.lines times serial.lines.max * sl.size db 0
serial.port_noinit dw 0 ; port that was setup by bootloader
serial.key dd 0 ; serial input
; baud divisors
serial.baud_tab db 1, 3, 6, 12, 0
sound_buf_size equ 4*1024
sound_buf_mask equ sound_buf_size - 1
align 4, db 0
sound_unpack_buf dd 0 ; buffer for unpacked sound samples
sound_unpack_buf_size dd 0
cnt0_acc dw 0
cnt0_start_val dw 0
sound_old_int8 dd 0
sound_vol db 0
sound_ok db 0
sound_int_active db 0
sound_playing db 0 ; bits 0-3: mod, 4-7: wav
sound_scale db 0
sound_sample dd 0
sound_buf dd 0 ; (seg:ofs)
sound_buf.lin dd 0 ; buffer for sound player
sound_start dd 0 ; rel. to sound_buf
sound_end dd 0 ; rel. to sound_buf
playlist times playlist_entries * sizeof_playlist db 0
mod_buf dd 0 ; buffer for mod player
int8_count dd 0
wav_current dd 0 ; pointer to currently played way file
wav_end dd 0 ; stop here
wav_next dd 0 ; next sound sample
wav_type db 0
need_sound_update db 0
align 4, db 0
ddc_external dd 0
; temporary vars
tmp_var_0 dd 0
tmp_var_1 dd 0
tmp_var_2 dd 0
tmp_var_3 dd 0
; display size list
display_res.cnt dw 0
display_res times 16 dw 0, 0
display_res_pref dw 0, 0
align 2
pm_idt dw 7ffh ; idt for pm
.base dd 0
rm_idt dw 0ffffh ; idt for real mode
.base dd 0
pm_gdt dw gdt_size-1 ; gdt for pm
.base dd 0
; real mode segment values
rm_seg:
.ss dw 0
.cs dw 0
.ds dw 0
.es dw 0
.fs dw 0
.gs dw 0
align 4
prog.base dd 0 ; our base address
gdt dd 0, 0 ; null descriptor
.4gb_d32 dd 0000ffffh, 00cf9300h ; 4GB segment, data, use32
.4gb_c32 dd 0000ffffh, 00cf9b00h ; 4GB segment, code, use32
; see gdt_init
.prog_c32 dd 00000000h, 00409b00h ; our program as code, use32
.prog_d16 dd 00000000h, 00009300h ; dto, data, use16
.prog_c16 dd 00000000h, 00009b00h ; dto, code, use16
.data_d16 dd 00000000h, 00009300h ; 64k segment, data, use16
.screen_r16 dd 00000000h, 00009300h ; 64k screen, data, use16
.screen_w16 dd 00000000h, 00009300h ; 64k screen, data, use16
.tss dd 00000067h, 00008900h ; 104 byte minimal tss
gdt_size equ $-gdt
; gdt for pm switch
pm_seg.4gb_d32 equ 8 ; covers all 4GB, default ss, es, fs, gs
pm_seg.4gb_c32 equ 10h ; dto, but executable (for e.g., idt)
pm_seg.prog_c32 equ 18h ; default cs, use32
pm_seg.prog_d16 equ 20h ; default ds
pm_seg.prog_c16 equ 28h ; default cs, use16
pm_seg.data_d16 equ 30h ; free to use
pm_seg.screen_r16 equ 38h ; graphics window, for reading
pm_seg.screen_w16 equ 40h ; graphics window, for writing
pm_seg.tss equ 48h ; tss
%if debug
; debug texts
dmsg_01 db 10, 'Press a key to continue...', 0
dmsg_02 db ' mem area %d: 0x%08x - 0x%08x', 10, 0
dmsg_03 db '%4u: addr 0x%08x, size 0x%08x+%u, ip 0x%04x, %s', 10, 0
dmsg_03a db ' ', 10, 0
dmsg_04 db 'oops: block at 0x%08x: size 0x%08x is too small', 10, 0
dmsg_04a db 'oops: 0x%08x > 0x%08x', 10, 0
dmsg_06 db 'addr 0x%08x', 10, 0
dmsg_07 db 'free', 0
dmsg_08 db 'used', 0
dmsg_09 db 'current dictionary', 10, 0
dmsg_10 db ' %2u: type %u, val 0x%x', 10, 0
%endif
single_step db 0
show_debug_info db 0
dtrace_count db 0
fms_cpio_swab db 0
hello db 10, 'Initializing gfx code...', 10
msg_0 db 0
msg_10 db 0b3h, 'ip %4x: %8x.%x ', 0b3h, 10, 0
msg_11 db 0b3h, '%2x: %8x.%2x', 0
msg_12 db 0b3h, ' : ', 0
msg_13 db 0dah, 0c4h, 0c4h, 0c4h, 0c4h, 'data'
times 7 db 0c4h
db 0c2h, 0c4h, 0c4h, 0c4h, 0c4h, 'prog'
times 7 db 0c4h
db 0bfh, 10, 0
msg_14 db 0c3h
times 15 db 0c4h
db 0c1h
times 15 db 0c4h
db 0b4h, 10, 0
msg_15 db 0c0h
times 31 db 0c4h
db 0d9h, 10, 0
msg_16 db 0b3h, 10, 0
msg_17 db 0b3h, 'err %3x ', 0b3h, 10, 0
msg_18 db 0b3h, 'err %3x: %8x ', 0b3h, 10, 0
msg_19 db 0b3h, 'err %3x: %8x %8x ', 0b3h, 10, 0
msg_20 db 0b3h, 'ip %4x: %8x.%x %8x.%x ', 0b3h, 10, 0
msg_21 db 0b3h, '%S', 0b3h, 10, 0
align 2, db 0
; prim_function entries
prim_jump_table
; menu entry descriptor
menu_entries equ 0
menu_default equ 2 ; seg:ofs
menu_ent_list equ 6 ; seg:ofs
menu_ent_size equ 10
menu_arg_list equ 12 ; seg:ofs
menu_arg_size equ 16
sizeof_menu_desc equ 18
; framebuffer mode list
fb_mode equ 0 ; word
fb_width equ 2 ; word
fb_height equ 4 ; word, must follow fb_width
fb_bits equ 6 ; byte
fb_ok equ 7 ; monitor supports it
sizeof_fb_entry equ 8
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
;
; Some macros.
;
%macro pf_arg_uchar 2
and dword [tmp_write_data + %1 * 4],byte 0
mov [tmp_write_data + %1 * 4],%2
%endmacro
%macro pf_arg_ushort 2
and word [tmp_write_data + %1 * 4 + 2],byte 0
mov [tmp_write_data + %1 * 4],%2
%endmacro
%macro pf_arg_uint 2
mov [tmp_write_data + %1 * 4],%2
%endmacro
%macro pf_arg_char 2
push eax
movsx eax,%2
mov [tmp_write_data + %1 * 4],eax
pop eax
%endmacro
%macro pf_arg_short 2
push eax
movsx eax,%2
mov [tmp_write_data + %1 * 4],eax
pop eax
%endmacro
%macro pf_arg_int 2
mov [tmp_write_data + %1 * 4],%2
%endmacro
%macro pm_enter 0
%%j_pm_1:
call switch_to_pm
%%j_pm_2:
%if %%j_pm_2 - %%j_pm_1 != 3
%error "pm_enter: not in 16 bit mode"
%endif
bits 32
%endmacro
%macro pm_leave 0
%%j_pm_1:
call switch_to_rm
%%j_pm_2:
%if %%j_pm_2 - %%j_pm_1 != 5
%error "pm_leave: not in 32 bit mode"
%endif
bits 16
%endmacro
%macro gfx_enter 0
call _gfx_enter
bits 32
%endmacro
%macro gfx_leave 0
call _gfx_leave
bits 16
%endmacro
%macro rm32_call 1
pm_leave
call %1
pm_enter
%endmacro
%macro pm32_call 1
pm_enter
call %1
pm_leave
%endmacro
%macro wait32 0
pushf
push ecx
push eax
mov ecx,10000000
%%wait32_10:
in al,80h
loop %%wait32_10
pop eax
pop ecx
popf
%endmacro
%macro is_dotdot 1
cmp dword [%1],'/../'
jz %%idd_90
cmp dword [%1],'/..'
%%idd_90:
%endmacro
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
;
; Interface functions.
;
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
; Setup internal data structures.
;
; esi sysconfig data
;
; return:
; CF error
;
bits 16
gfx_init:
; don't change stack layout - see gfx_enter
push fs
push es
push ds
push cs
pop ds
cld
mov [boot.sysconfig],esi
; setup gdt, to get pm-switching going
call gdt_init
; we can run in protected mode but can't handle ints until
; after pm_init
cli
xor ecx,ecx
dec cx
pm_enter
; some via cpus have problems with pm switching (bug #231104), so:
; checking whether pm switch really worked...
inc ecx
jnz gfx_init_10
; ... apparently not; try to get out
cmc
jnc $+2
cmc
jnc $+2
jz $+2
pm_leave
cmc
jnc $+2
cmc
jnc $+2
jz $+2
stc
pop ds
pop es
pop fs
sti
retf
bits 32
gfx_init_10:
mov esi,[boot.sysconfig]
movzx eax,word [es:esi+sc.bootloader_seg]
shl eax,4
mov [boot.base],eax
push dword [es:esi+sc.file]
pop dword [file.start]
push dword [es:esi+sc.archive_start]
pop dword [archive.start]
push dword [es:esi+sc.archive_end]
pop dword [archive.end]
push dword [es:esi+sc.mem0_start]
pop dword [mem0.start]
push dword [es:esi+sc.mem0_end]
pop dword [mem0.end]
mov ax,[es:esi+sc.serial_port]
mov [serial.port_noinit],ax
mov eax,[es:esi+sc.callback]
or ax,ax ; check only offset
jz gfx_init_20
mov [boot.callback],eax
gfx_init_20:
; init malloc memory chain
push dword [mem0.start]
pop dword [malloc.area]
push dword [mem0.end]
pop dword [malloc.area+4]
mov ebx,[boot.sysconfig]
cmp byte [es:ebx+sc.sysconfig_size],sc.size_64
jb gfx_init_28
; pass back feature flags
mov word [es:ebx+sc.features],3
; only one xmem area
mov eax,[es:ebx+sc.xmem_start]
mov edx,[es:ebx+sc.xmem_end]
cmp edx,eax
jbe gfx_init_28
; ok, use only this one
mov [malloc.area+8],eax
mov [malloc.area+8+4],edx
jmp gfx_init_40
gfx_init_28:
; old way to specify extended mem areas
mov esi,malloc.area+8
mov ecx,malloc.areas-1 ; extended mem areas
gfx_init_30:
movzx eax,word [es:ebx+sc.xmem_0] ; extended mem area pointer
or eax,eax
jz gfx_init_40
mov edx,eax
and dl,~0fh
shl edx,16
and eax,0fh
shl eax,20
add eax,edx
mov [esi+4],eax
; magic: if archive was loaded in high memory, exclude it
cmp edx,[archive.start]
jnz gfx_init_35
mov edx,[archive.end]
gfx_init_35:
mov [esi],edx
add esi,8
add ebx,2
dec ecx
jnz gfx_init_30
gfx_init_40:
call malloc_init
; setup full pm interface
; can't do it earlier - we need malloc
call pm_init
; allocate 8k local stack
mov eax,8 << 10
mov [stack.size],eax
add eax,3
call calloc
; dword align
add eax,3
and eax,~3
jnz gfx_init_50
cmp eax,100000h ; must be low memory
jb gfx_init_50
; malloc failed - keep stack
push word [rm_seg.ss]
pop word [local_stack.seg]
mov eax,esp
mov [local_stack.ofs],eax
jmp gfx_init_51
gfx_init_50:
mov edx,eax
and eax,0fh
add eax,[stack.size]
mov [local_stack.ofs],eax
shr edx,4
mov [local_stack.seg],dx
gfx_init_51:
; now we really start...
pm_leave
sti
call use_local_stack
pm_enter
mov esi,hello
call printf
; get initial keyboard state
push word [es:417h]
pop word [kbd_status]
mov eax,[boot.sysconfig]
mov al,[es:eax+sc.failsafe]
test al,1
jz gfx_init_58
xor ebx,ebx
gfx_init_55:
pf_arg_uchar 0,bl
mov eax,[malloc.area+8*ebx]
pf_arg_uint 1,eax
mov eax,[malloc.area+8*ebx+4]
pf_arg_uint 2,eax
or eax,eax
jz gfx_init_57
push ebx
mov esi,dmsg_02
call printf
pop ebx
inc ebx
cmp ebx,malloc.areas
jb gfx_init_55
gfx_init_57:
mov esi,dmsg_01
call printf
call get_key
gfx_init_58:
; alloc memory for palette data
call pal_init
jc gfx_init_90
mov eax,200h
call calloc
cmp eax,1
jc gfx_init_90
mov [vbe_buffer],eax
mov eax,100h
call calloc
cmp eax,1
jc gfx_init_90
mov [vbe_info_buffer],eax
mov eax,sound_buf_size
call calloc
cmp eax,1
jc gfx_init_90
mov [sound_buf.lin],eax
mov edx,eax
and eax,~0fh
shl eax,12
and edx,0fh
mov ax,dx
mov [sound_buf],eax
; those must be low memory addresses: