;**************************************************************************** ;**************************************************************************** ;* ;* USING MODE X (VIA DIRECT VGA ACCESS) UNDER LINUX ;* ;* written by Karsten Scheibler, 2003-DEC-08 ;* ;**************************************************************************** ;**************************************************************************** ;select the used mode here %define MODE_320X200P %ifdef MODE_256X224 %define XRES 256 %define YRES 224 %elifdef MODE_256X240 %define XRES 256 %define YRES 240 %elifdef MODE_256X256P %define XRES 256 %define YRES 256 %define MODE_PLANAR %elifdef MODE_256X256 %define XRES 256 %define YRES 256 %elifdef MODE_280X210 %define XRES 280 %define YRES 210 %elifdef MODE_320X200P %define XRES 320 %define YRES 200 %define MODE_PLANAR %elifdef MODE_320X200 %define XRES 320 %define YRES 200 %elifdef MODE_320X240 %define XRES 320 %define YRES 240 %elifdef MODE_320X270 %define XRES 320 %define YRES 270 %elifdef MODE_320X400 %define XRES 320 %define YRES 400 %elifdef MODE_320X480 %define XRES 320 %define YRES 480 %elifdef MODE_320X540 %define XRES 320 %define YRES 540 %elifdef MODE_360X200 %define XRES 360 %define YRES 200 %elifdef MODE_360X240 %define XRES 360 %define YRES 240 %elifdef MODE_360X270 %define XRES 360 %define YRES 270 %elifdef MODE_360X400 %define XRES 360 %define YRES 400 %elifdef MODE_360X480 %define XRES 360 %define YRES 480 %elifdef MODE_360X540 %define XRES 360 %define YRES 540 %elifdef MODE_376X282 %define XRES 376 %define YRES 282 %elifdef MODE_376X564 %define XRES 376 %define YRES 564 %elifdef MODE_384X282 %define XRES 384 %define YRES 282 %elifdef MODE_384X564 %define XRES 384 %define YRES 564 %elifdef MODE_400X300 %define XRES 400 %define YRES 300 %elifdef MODE_400X600 %define XRES 400 %define YRES 600 %endif global modex_start ;look at the vt example code for more %ifdef USE_VT %include "vt.n" %endif ;USE_VT ;**************************************************************************** ;* some assign's ;**************************************************************************** %assign SYS_READ 3 %assign SYS_WRITE 4 %assign SYS_OPEN 5 %assign SYS_CLOSE 6 %assign SYS_IOCTL 54 %assign SYS_MMAP 90 %assign SYS_IOPERM 101 %assign KDSETMODE 0x00004b3a %assign KDGETMODE 0x00004b3b %assign KD_TEXT 0 %assign KD_GRAPHICS 1 %assign PROT_READ 1 %assign PROT_WRITE 2 %assign MAP_SHARED 1 %assign O_RDWR 2 %assign STDIN 0 %assign STDOUT 1 %assign VGA_CRT_REGISTERS 24 %assign VGA_ATTRIBUTE_REGISTERS 21 %assign VGA_GRAPHIC_REGISTERS 9 %assign VGA_SEQUENCER_REGISTERS 5 %assign VGA_MISC_REGISTERS 1 %assign VGA_IO_BASE 0x3c0 %assign VGA_IO_SIZE 0x20 %assign VGA_IO_BASE_MONO1 0x3b4 %assign VGA_IO_SIZE_MONO1 0x02 %assign VGA_IO_BASE_MONO2 0x3ba %assign VGA_IO_SIZE_MONO2 0x01 %assign VGA_ATTRIBUTE_INDEX 0x3c0 %assign VGA_ATTRIBUTE_DATA_WRITE 0x3c0 %assign VGA_ATTRIBUTE_DATA_READ 0x3c1 %assign VGA_MISC_DATA_WRITE 0x3c2 %assign VGA_SEQUENCER_INDEX 0x3c4 %assign VGA_SEQUENCER_DATA 0x3c5 %assign VGA_PEL_MASK 0x3c6 %assign VGA_PEL_INDEX_READ 0x3c7 %assign VGA_PEL_INDEX_WRITE 0x3c8 %assign VGA_PEL_DATA 0x3c9 %assign VGA_MISC_DATA_READ 0x3cc %assign VGA_GRAPHIC_INDEX 0x3ce %assign VGA_GRAPHIC_DATA 0x3cf %assign VGA_CRT_INDEX 0x3d4 %assign VGA_CRT_INDEX_MONO 0x3b4 %assign VGA_CRT_DATA 0x3d5 %assign VGA_CRT_DATA_MONO 0x3b5 %assign VGA_INPUT_STATUS 0x3da %assign VGA_INPUT_STATUS_MONO 0x3ba %assign MODEX_KDMODE_SAVED 0x00000001 %assign MODEX_CRT_REGISTERS_SAVED 0x00000002 %assign MODEX_ATTRIBUTE_REGISTERS_SAVED 0x00000004 %assign MODEX_GRAPHIC_REGISTERS_SAVED 0x00000008 %assign MODEX_SEQUENCER_REGISTERS_SAVED 0x00000010 %assign MODEX_MISC_REGISTERS_SAVED 0x00000020 %assign MODEX_COLORMAP_SAVED 0x00000040 %assign MODEX_CHARSET_SAVED 0x00000080 ;**************************************************************************** ;* data ;**************************************************************************** section .data align 4 modex_state: dd 0 modex_address: dd 0 modex_kdmode: dd 0 vga_crt_index: dd VGA_CRT_INDEX vga_crt_data: dd VGA_CRT_DATA vga_input_status: dd VGA_INPUT_STATUS section .bss alignb 4 modex_charset_saved: resb 0x40000 modex_registers: .colormap: resd 256 .crt: resb VGA_CRT_REGISTERS .attribute: resb VGA_ATTRIBUTE_REGISTERS .graphic: resb VGA_GRAPHIC_REGISTERS .sequencer: resb VGA_SEQUENCER_REGISTERS .misc: resb VGA_MISC_REGISTERS ;**************************************************************************** ;* modex_start ;**************************************************************************** section .text modex_start: mov dword eax, SYS_IOCTL mov dword ebx, STDIN mov dword ecx, KDGETMODE mov dword edx, modex_kdmode int byte 0x80 test dword eax, eax js near modex_error or dword [modex_state], MODEX_KDMODE_SAVED ;tell kernel that we switch to graphics mode ;this means the kernel won't do things that may change the video ram ;(vt switching, vt blanking, cursor, mouse cursor [gpm]) mov dword eax, SYS_IOCTL mov dword ebx, STDIN mov dword ecx, KDSETMODE mov dword edx, KD_GRAPHICS int byte 0x80 test dword eax, eax js near modex_error ;get access to the VGA I/O ports mov dword eax, SYS_IOPERM mov dword ebx, VGA_IO_BASE mov dword ecx, VGA_IO_SIZE mov dword edx, 1 int byte 0x80 test dword eax, eax js near modex_error ;check if monochrome compatibility is needed mov dword edx, VGA_MISC_DATA_READ in byte al, dx and dword eax, byte 1 jnz short .color mov dword [vga_crt_index], VGA_CRT_INDEX_MONO mov dword [vga_crt_data], VGA_CRT_DATA_MONO mov dword [vga_input_status], VGA_INPUT_STATUS mov dword eax, SYS_IOPERM mov dword ebx, VGA_IO_BASE_MONO1 mov dword ecx, VGA_IO_SIZE_MONO1 mov dword edx, 1 int byte 0x80 test dword eax, eax js near modex_error mov dword eax, SYS_IOPERM mov dword ebx, VGA_IO_BASE_MONO2 mov dword ecx, VGA_IO_SIZE_MONO2 mov dword edx, 1 int byte 0x80 test dword eax, eax js near modex_error .color: ;save current settings call near modex_save_registers ;mmap the VGA memory mov dword eax, SYS_OPEN mov dword ebx, .mem_path mov dword ecx, O_RDWR int byte 0x80 test dword eax, eax js near modex_error xor dword ebx, ebx push dword 0xa0000 push dword eax push dword MAP_SHARED push dword (PROT_READ | PROT_WRITE) push dword 0x10000 push dword ebx mov dword eax, SYS_MMAP mov dword ebx, esp int byte 0x80 mov dword ebx, [esp + 16] add dword esp, byte 24 test dword eax, eax jz near modex_error mov dword [modex_address], eax mov dword eax, SYS_CLOSE int byte 0x80 test dword eax, eax js near modex_error ;initialize the VGA with our values call near modex_switch_mode call near modex_save_charset call near modex_prepare_colormap call near modex_draw ;"press enter to exit" ... %ifndef USE_VT push dword eax mov dword eax, SYS_READ mov dword ebx, STDIN mov dword ecx, esp mov dword edx, 1 int byte 0x80 add dword esp, byte 4 jmp near modex_end %else ;USE_VT mov dword eax, modex_end mov dword ebx, modex_error call near vt_init ;mainloop .keypress1: call near vt_check_keypress cmp dword eax, byte 1 je near modex_end call near vt_check_release test dword eax, eax js short .keypress1 call near modex_restore_charset call near modex_restore_registers call near vt_commit_release test dword eax, eax js short .switch_back .keypress2: call near vt_check_keypress ;vt is not active => no keypress ;possible, we simply use select to ;wait here call near vt_check_acquire test dword eax, eax js short .keypress2 .switch_back: call near modex_switch_mode call near modex_prepare_colormap call near modex_draw jmp short .keypress1 %endif ;USE_VT .mem_path: db "/dev/mem", 0 ;**************************************************************************** ;* modex_get_crt_registers ;**************************************************************************** ;* ebx=> pointer where to store crt registers ;**************************************************************************** section .text modex_get_crt_registers: xor dword ecx, ecx .loop: mov dword edx, [vga_crt_index] mov byte al, cl out word dx, al mov dword edx, [vga_crt_data] in byte al, dx mov byte [ebx + ecx], al inc dword ecx cmp dword ecx, VGA_CRT_REGISTERS jb short .loop ret ;**************************************************************************** ;* modex_get_attribute_registers ;**************************************************************************** ;* ebx=> pointer where to store attribute registers ;**************************************************************************** section .text modex_get_attribute_registers: xor dword ecx, ecx .loop: mov dword edx, [vga_input_status] in byte al, dx mov dword edx, VGA_ATTRIBUTE_INDEX mov byte al, cl out word dx, al mov dword edx, VGA_ATTRIBUTE_DATA_READ in byte al, dx mov byte [ebx + ecx], al inc dword ecx cmp dword ecx, VGA_ATTRIBUTE_REGISTERS jb short .loop ret ;**************************************************************************** ;* modex_get_graphic_registers ;**************************************************************************** ;* ebx=> pointer where to store graphics registers ;**************************************************************************** section .text modex_get_graphic_registers: xor dword ecx, ecx .loop: mov dword edx, VGA_GRAPHIC_INDEX mov byte al, cl out word dx, al mov dword edx, VGA_GRAPHIC_DATA in byte al, dx mov byte [ebx + ecx], al inc dword ecx cmp dword ecx, VGA_GRAPHIC_REGISTERS jb short .loop ret ;**************************************************************************** ;* modex_get_sequencer_registers ;**************************************************************************** ;* ebx=> pointer where to store sequencer registers ;**************************************************************************** section .text modex_get_sequencer_registers: xor dword ecx, ecx .loop: mov dword edx, VGA_SEQUENCER_INDEX mov byte al, cl out word dx, al mov dword edx, VGA_SEQUENCER_DATA in byte al, dx mov byte [ebx + ecx], al inc dword ecx cmp dword ecx, VGA_SEQUENCER_REGISTERS jb short .loop ret ;**************************************************************************** ;* modex_get_misc_registers ;**************************************************************************** ;* ebx=> pointer where to store misc register ;**************************************************************************** section .text modex_get_misc_registers: mov dword edx, VGA_MISC_DATA_READ in byte al, dx mov byte [ebx], al ret ;**************************************************************************** ;* modex_get_colormap ;**************************************************************************** ;* ebx=> pointer where to store colormap ;**************************************************************************** section .text modex_get_colormap: xor dword ecx, ecx xor dword eax, eax mov dword edx, VGA_PEL_INDEX_READ out word dx, al mov dword edx, VGA_PEL_DATA .loop: in byte al, dx shl dword eax, 8 in byte al, dx shl dword eax, 8 in byte al, dx mov dword [ebx + 4 * ecx], eax inc dword ecx test byte cl, cl jnz short .loop ret ;**************************************************************************** ;* modex_set_crt_registers ;**************************************************************************** ;* ebx=> pointer to stored crt registers ;**************************************************************************** section .text modex_set_crt_registers: ;deprotect CRT registers 0 - 7 mov dword edx, [vga_crt_index] mov byte al, 0x11 out word dx, al mov dword edx, [vga_crt_data] in byte al, dx and byte al, 0x7f out word dx, al ;write to the registers xor dword ecx, ecx .loop: mov dword edx, [vga_crt_index] mov byte al, cl out word dx, al mov dword edx, [vga_crt_data] mov byte al, [ebx + ecx] out word dx, al inc dword ecx cmp dword ecx, VGA_CRT_REGISTERS jb short .loop ret ;**************************************************************************** ;* modex_set_attribute_registers ;**************************************************************************** ;* ebx=> pointer to stored attibute registers ;**************************************************************************** section .text modex_set_attribute_registers: xor dword ecx, ecx .loop: mov dword edx, [vga_input_status] in byte al, dx mov dword edx, VGA_ATTRIBUTE_INDEX mov byte al, cl out word dx, al mov dword edx, VGA_ATTRIBUTE_DATA_WRITE mov byte al, [ebx + ecx] out word dx, al inc dword ecx cmp dword ecx, VGA_ATTRIBUTE_REGISTERS jb short .loop ret ;**************************************************************************** ;* modex_set_graphic_registers ;**************************************************************************** ;* ebx=> pointer to stored graphic registers ;**************************************************************************** section .text modex_set_graphic_registers: xor dword ecx, ecx .loop: mov dword edx, VGA_GRAPHIC_INDEX mov byte al, cl out word dx, al mov dword edx, VGA_GRAPHIC_DATA mov byte al, [ebx + ecx] out word dx, al inc dword ecx cmp dword ecx, VGA_GRAPHIC_REGISTERS jb short .loop ret ;**************************************************************************** ;* modex_set_sequencer_registers ;**************************************************************************** ;* ebx=> pointer to stored sequencer registers ;**************************************************************************** section .text modex_set_sequencer_registers: ;synchronous reset on mov dword edx, VGA_SEQUENCER_INDEX xor dword eax, eax out word dx, al mov dword edx, VGA_SEQUENCER_DATA inc dword eax out word dx, al ;write to the registers mov dword edx, VGA_SEQUENCER_INDEX out word dx, al mov dword edx, VGA_SEQUENCER_DATA mov byte al, [ebx + 1] or byte al, 0x20 out word dx, al mov dword ecx, 2 .loop: mov dword edx, VGA_SEQUENCER_INDEX mov byte al, cl out word dx, al mov dword edx, VGA_SEQUENCER_DATA mov byte al, [ebx + ecx] out word dx, al inc dword ecx cmp dword ecx, VGA_SEQUENCER_REGISTERS jb short .loop ;synchronous reset off mov dword edx, VGA_SEQUENCER_INDEX xor dword eax, eax out word dx, al mov dword edx, VGA_SEQUENCER_DATA mov byte al, 3 out word dx, al ret ;**************************************************************************** ;* modex_set_misc_registers ;**************************************************************************** ;* ebx=> pointer to stored misc register ;**************************************************************************** section .text modex_set_misc_registers: mov dword edx, VGA_MISC_DATA_WRITE mov byte al, [ebx] out word dx, al ret ;**************************************************************************** ;* modex_set_colormap ;**************************************************************************** ;* ebx=> pointer to stored colormap ;**************************************************************************** section .text modex_set_colormap: xor dword ecx, ecx xor dword eax, eax mov dword edx, VGA_PEL_INDEX_WRITE out word dx, al mov dword edx, VGA_PEL_DATA .loop: mov dword eax, [ebx + 4 * ecx] rol dword eax, 16 out word dx, al rol dword eax, 8 out word dx, al rol dword eax, 8 out word dx, al inc dword ecx test byte cl, cl jnz short .loop ret ;**************************************************************************** ;* modex_screen_on ;**************************************************************************** section .text modex_screen_on: ;turn on the screen mov dword edx, VGA_SEQUENCER_INDEX mov byte al, 1 out word dx, al mov dword edx, VGA_SEQUENCER_DATA in byte al, dx and byte al, 0xdf out word dx, al ;enable video output mov dword edx, [vga_input_status] in byte al, dx mov dword edx, VGA_ATTRIBUTE_DATA_WRITE mov byte al, 0x20 out word dx, al ret ;**************************************************************************** ;* modex_switch_mode ;**************************************************************************** section .text modex_switch_mode: mov dword ebx, .vga_misc_registers call near modex_set_misc_registers mov dword ebx, .vga_sequencer_registers call near modex_set_sequencer_registers mov dword ebx, .vga_crt_registers call near modex_set_crt_registers mov dword ebx, .vga_graphic_registers call near modex_set_graphic_registers mov dword ebx, .vga_attribute_registers call near modex_set_attribute_registers call near modex_screen_on ret %ifdef MODE_256X224 .vga_crt_registers: db 0x5f, 0x3f, 0x40, 0x82, 0x4a, 0x9a, 0x0b, 0x3e db 0x00, 0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 db 0xda, 0x9c, 0xbf, 0x20, 0x00, 0xc7, 0x04, 0xe3 .vga_attribute_registers: db 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 db 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f db 0x41, 0x00, 0x0f, 0x00, 0x00 .vga_graphic_registers: db 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0f db 0xff .vga_sequencer_registers: db 0x03, 0x01, 0x0f, 0x00, 0x06 .vga_misc_registers: db 0xe3 %elifdef MODE_256X240 .vga_crt_registers: db 0x5f, 0x3f, 0x40, 0x82, 0x4e, 0x96, 0x0d, 0x3e db 0x00, 0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 db 0xea, 0xac, 0xdf, 0x20, 0x00, 0xe7, 0x06, 0xe3 .vga_attribute_registers: db 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 db 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f db 0x41, 0x00, 0x0f, 0x00, 0x00 .vga_graphic_registers: db 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0f db 0xff .vga_sequencer_registers: db 0x03, 0x01, 0x0f, 0x00, 0x06 .vga_misc_registers: db 0xe3 %elifdef MODE_256X256P .vga_crt_registers: db 0x5f, 0x3f, 0x40, 0x82, 0x4a, 0x9a, 0x23, 0xb2 db 0x00, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 db 0x0a, 0xac, 0xff, 0x20, 0x40, 0x07, 0x1a, 0xe3 .vga_attribute_registers: db 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 db 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f db 0x41, 0x00, 0x0f, 0x00, 0x00 .vga_graphic_registers: db 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0f db 0xff .vga_sequencer_registers: db 0x03, 0x01, 0x0f, 0x00, 0x0e .vga_misc_registers: db 0x63 %elifdef MODE_256X256 .vga_crt_registers: db 0x5f, 0x3f, 0x40, 0x82, 0x4a, 0x9a, 0x23, 0xb2 db 0x00, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 db 0x0a, 0xac, 0xff, 0x20, 0x00, 0x07, 0x1a, 0xe3 .vga_attribute_registers: db 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 db 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f db 0x41, 0x00, 0x0f, 0x00, 0x00 .vga_graphic_registers: db 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0f db 0xff .vga_sequencer_registers: db 0x03, 0x01, 0x0f, 0x00, 0x06 .vga_misc_registers: db 0xe3 %elifdef MODE_280X210 .vga_crt_registers: db 0x50, 0x45, 0x49, 0x84, 0x4b, 0x02, 0xbf, 0x1f db 0x00, 0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 db 0xa9, 0x82, 0xa3, 0x23, 0x00, 0xa7, 0x04, 0xe3 .vga_attribute_registers: db 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 db 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f db 0x41, 0x00, 0x0f, 0x00, 0x00 .vga_graphic_registers: db 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0f db 0xff .vga_sequencer_registers: db 0x03, 0x01, 0x0f, 0x00, 0x06 .vga_misc_registers: db 0x63 %elifdef MODE_320X200P .vga_crt_registers: db 0x5f, 0x4f, 0x50, 0x82, 0x54, 0x80, 0xbf, 0x1f db 0x00, 0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 db 0x9c, 0x8e, 0x8f, 0x28, 0x40, 0x96, 0xb9, 0xa3 .vga_attribute_registers: db 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 db 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f db 0x41, 0x00, 0x0f, 0x00, 0x00 .vga_graphic_registers: db 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0f db 0xff .vga_sequencer_registers: db 0x03, 0x01, 0x0f, 0x00, 0x0e .vga_misc_registers: db 0x63 %elifdef MODE_320X200 .vga_crt_registers: db 0x5f, 0x4f, 0x50, 0x82, 0x54, 0x80, 0xbf, 0x1f db 0x00, 0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 db 0x9c, 0x8e, 0x8f, 0x28, 0x00, 0x96, 0xb9, 0xe3 .vga_attribute_registers: db 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 db 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f db 0x41, 0x00, 0x0f, 0x00, 0x00 .vga_graphic_registers: db 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0f db 0xff .vga_sequencer_registers: db 0x03, 0x01, 0x0f, 0x00, 0x06 .vga_misc_registers: db 0x63 %elifdef MODE_320X240 .vga_crt_registers: db 0x5f, 0x4f, 0x50, 0x82, 0x54, 0x80, 0x0d, 0x3e db 0x00, 0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 db 0xea, 0xac, 0xdf, 0x28, 0x00, 0xe7, 0x06, 0xe3 .vga_attribute_registers: db 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 db 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f db 0x41, 0x00, 0x0f, 0x00, 0x00 .vga_graphic_registers: db 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0f db 0xff .vga_sequencer_registers: db 0x03, 0x01, 0x0f, 0x00, 0x06 .vga_misc_registers: db 0xe3 %elifdef MODE_320X270 .vga_crt_registers: db 0x5f, 0x4f, 0x50, 0x82, 0x54, 0x80, 0x30, 0xf0 db 0x00, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 db 0x20, 0xa9, 0x1b, 0x28, 0x00, 0x1f, 0x2f, 0xe3 .vga_attribute_registers: db 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 db 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f db 0x41, 0x00, 0x0f, 0x00, 0x00, .vga_graphic_registers: db 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0f db 0xff .vga_sequencer_registers: db 0x03, 0x01, 0x0f, 0x00, 0x06 .vga_misc_registers: db 0xe3 %elifdef MODE_320X400 .vga_crt_registers: db 0x5f, 0x4f, 0x50, 0x82, 0x54, 0x80, 0xbf, 0x1f db 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 db 0x9c, 0x8e, 0x8f, 0x28, 0x00, 0x96, 0xb9, 0xe3 .vga_attribute_registers: db 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 db 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f db 0x41, 0x00, 0x0f, 0x00, 0x00 .vga_graphic_registers: db 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0f db 0xff .vga_sequencer_registers: db 0x03, 0x01, 0x0f, 0x00, 0x06 .vga_misc_registers: db 0xe3 %elifdef MODE_320X480 .vga_crt_registers: db 0x5f, 0x4f, 0x50, 0x82, 0x54, 0x80, 0x0d, 0x3e db 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 db 0xea, 0xac, 0xdf, 0x28, 0x00, 0xe7, 0x06, 0xe3 .vga_attribute_registers: db 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 db 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f db 0x41, 0x00, 0x0f, 0x00, 0x00, .vga_graphic_registers: db 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0f db 0xff .vga_sequencer_registers: db 0x03, 0x01, 0x0f, 0x00, 0x06 .vga_misc_registers: db 0xe3 %elifdef MODE_320X540 .vga_crt_registers: db 0x5f, 0x4f, 0x50, 0x82, 0x54, 0x80, 0x30, 0xf0 db 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 db 0x20, 0xa9, 0x1b, 0x28, 0x00, 0x1f, 0x2f, 0xe3 .vga_attribute_registers: db 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 db 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f db 0x41, 0x00, 0x0f, 0x00, 0x00 .vga_graphic_registers: db 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0f db 0xff .vga_sequencer_registers: db 0x03, 0x01, 0x0f, 0x00, 0x06 .vga_misc_registers: db 0xe3 %elifdef MODE_360X200 .vga_crt_registers: db 0x6b, 0x59, 0x5a, 0x8e, 0x5e, 0x8a, 0xbf, 0x1f db 0x00, 0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 db 0x9c, 0x8e, 0x8f, 0x2d, 0x00, 0x96, 0xb9, 0xe3 .vga_attribute_registers: db 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 db 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f db 0x41, 0x00, 0x0f, 0x00, 0x00 .vga_graphic_registers: db 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0f db 0xff .vga_sequencer_registers: db 0x03, 0x01, 0x0f, 0x00, 0x06 .vga_misc_registers: db 0xe7 %elifdef MODE_360X240 .vga_crt_registers: db 0x6b, 0x59, 0x5a, 0x8e, 0x5e, 0x8a, 0x0d, 0x3e db 0x00, 0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 db 0xea, 0xac, 0xdf, 0x2d, 0x00, 0xe7, 0x06, 0xe3 .vga_attribute_registers: db 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 db 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f db 0x41, 0x00, 0x0f, 0x00, 0x00 .vga_graphic_registers: db 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0f db 0xff .vga_sequencer_registers: db 0x03, 0x01, 0x0f, 0x00, 0x06 .vga_misc_registers: db 0xe7 %elifdef MODE_360X270 .vga_crt_registers: db 0x6b, 0x59, 0x5a, 0x8e, 0x5e, 0x8a, 0x30, 0xf0 db 0x00, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 db 0x20, 0xa9, 0x1b, 0x2d, 0x00, 0x1f, 0x2f, 0xe3 .vga_attribute_registers: db 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 db 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f db 0x41, 0x00, 0x0f, 0x00, 0x00, .vga_graphic_registers: db 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0f db 0xff .vga_sequencer_registers: db 0x03, 0x01, 0x0f, 0x00, 0x06 .vga_misc_registers: db 0xe7 %elifdef MODE_360X400 .vga_crt_registers: db 0x6b, 0x59, 0x5a, 0x8e, 0x5e, 0x8a, 0xbf, 0x1f db 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 db 0x9c, 0x8e, 0x8f, 0x2d, 0x00, 0x96, 0xb9, 0xe3 .vga_attribute_registers: db 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 db 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f db 0x41, 0x00, 0x0f, 0x00, 0x00 .vga_graphic_registers: db 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0f db 0xff .vga_sequencer_registers: db 0x03, 0x01, 0x0f, 0x00, 0x06 .vga_misc_registers: db 0xe7 %elifdef MODE_360X480 .vga_crt_registers: db 0x6b, 0x59, 0x5a, 0x8e, 0x5e, 0x8a, 0x0d, 0x3e db 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 db 0xea, 0xac, 0xdf, 0x2d, 0x00, 0xe7, 0x06, 0xe3 .vga_attribute_registers: db 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 db 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f db 0x41, 0x00, 0x0f, 0x00, 0x00, .vga_graphic_registers: db 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0f db 0xff .vga_sequencer_registers: db 0x03, 0x01, 0x0f, 0x00, 0x06 .vga_misc_registers: db 0xe7 %elifdef MODE_360X540 .vga_crt_registers: db 0x6b, 0x59, 0x5a, 0x8e, 0x5e, 0x8a, 0x30, 0xf0 db 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 db 0x20, 0xa9, 0x1b, 0x2d, 0x00, 0x1f, 0x2f, 0xe3 .vga_attribute_registers: db 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 db 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f db 0x41, 0x00, 0x0f, 0x00, 0x00 .vga_graphic_registers: db 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0f db 0xff .vga_sequencer_registers: db 0x03, 0x01, 0x0f, 0x00, 0x06 .vga_misc_registers: db 0xe7 %elifdef MODE_376X282 .vga_crt_registers: db 0x6e, 0x5d, 0x5e, 0x91, 0x62, 0x8f, 0x62, 0xf0 db 0x00, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 db 0x37, 0x89, 0x33, 0x2f, 0x00, 0x3c, 0x5c, 0xe3 .vga_attribute_registers: db 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 db 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f db 0x41, 0x00, 0x0f, 0x00, 0x00 .vga_graphic_registers: db 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0f db 0xff .vga_sequencer_registers: db 0x03, 0x01, 0x0f, 0x00, 0x06 .vga_misc_registers: db 0xe7 %elifdef MODE_376X564 .vga_crt_registers: db 0x6e, 0x5d, 0x5e, 0x91, 0x62, 0x8f, 0x62, 0xf0 db 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 db 0x37, 0x89, 0x33, 0x2f, 0x00, 0x3c, 0x5c, 0xe3 .vga_attribute_registers: db 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 db 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f db 0x41, 0x00, 0x0f, 0x00, 0x00 .vga_graphic_registers: db 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0f db 0xff .vga_sequencer_registers: db 0x03, 0x01, 0x0f, 0x00, 0x06 .vga_misc_registers: db 0xe7 %elifdef MODE_384X282 .vga_crt_registers: db 0x6e, 0x5f, 0x60, 0x91, 0x62, 0x8f, 0x62, 0xf0 db 0x00, 0x61, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 db 0x37, 0x89, 0x33, 0x30, 0x00, 0x3c, 0x5c, 0xe3 .vga_attribute_registers: db 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 db 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f db 0x41, 0x00, 0x0f, 0x00, 0x00 .vga_graphic_registers: db 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0f db 0xff .vga_sequencer_registers: db 0x03, 0x01, 0x0f, 0x00, 0x06 .vga_misc_registers: db 0xe7 %elifdef MODE_384X564 .vga_crt_registers: db 0x6e, 0x5f, 0x60, 0x91, 0x62, 0x8f, 0x62, 0xf0 db 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 db 0x37, 0x89, 0x33, 0x30, 0x00, 0x3c, 0x5c, 0xe3 .vga_attribute_registers: db 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 db 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f db 0x41, 0x00, 0x0f, 0x00, 0x00 .vga_graphic_registers: db 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0f db 0xff .vga_sequencer_registers: db 0x03, 0x01, 0x0f, 0x00, 0x06 .vga_misc_registers: db 0xe7 %elifdef MODE_400X300 .vga_crt_registers: db 0x71, 0x63, 0x64, 0x92, 0x65, 0x82, 0x46, 0x1f db 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 db 0x31, 0x80, 0x2b, 0x32, 0x00, 0x2f, 0x44, 0xe3 .vga_attribute_registers: db 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 db 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f db 0x41, 0x00, 0x0f, 0x00, 0x00 .vga_graphic_registers: db 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0f db 0xff .vga_sequencer_registers: db 0x03, 0x01, 0x0f, 0x00, 0x06 .vga_misc_registers: db 0xa7 %elifdef MODE_400X600 .vga_crt_registers: db 0x70, 0x63, 0x64, 0x92, 0x65, 0x82, 0x70, 0xf0 db 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 db 0x5b, 0x8c, 0x57, 0x32, 0x00, 0x58, 0x70, 0xe3 .vga_attribute_registers: db 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07 db 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f db 0x41, 0x00, 0x0f, 0x00, 0x00 .vga_graphic_registers: db 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0f db 0xff .vga_sequencer_registers: db 0x03, 0x01, 0x0f, 0x00, 0x06 .vga_misc_registers: db 0xe7 %endif ;**************************************************************************** ;* modex_select_write_plane ;**************************************************************************** ;* bl==> write mode ;* bh==> write plane ;**************************************************************************** section .text modex_select_write_plane: and dword ebx, 0x0f03 ;enable set/reset = 0 mov dword edx, VGA_GRAPHIC_INDEX mov byte al, 1 out word dx, al mov dword edx, VGA_GRAPHIC_DATA xor dword eax, eax out word dx, al ;logical operation = none, rotate = 0 mov dword edx, VGA_GRAPHIC_INDEX mov byte al, 3 out word dx, al mov dword edx, VGA_GRAPHIC_DATA xor dword eax, eax out word dx, al ;select write mode mov dword edx, VGA_GRAPHIC_INDEX mov byte al, 5 out word dx, al mov dword edx, VGA_GRAPHIC_DATA in byte al, dx and byte al, 0xfc or byte al, bl out word dx, al ;bitmask = 0xff mov dword edx, VGA_GRAPHIC_INDEX mov byte al, 8 out word dx, al mov dword edx, VGA_GRAPHIC_DATA mov byte al, 0xff out word dx, al ;select write plane mov dword edx, VGA_SEQUENCER_INDEX mov byte al, 2 out word dx, al mov dword edx, VGA_SEQUENCER_DATA mov byte al, bh out word dx, al ret ;**************************************************************************** ;* modex_select_read_plane ;**************************************************************************** ;* bl==> read mode ;* bh==> read plane ;**************************************************************************** section .text modex_select_read_plane: and dword ebx, 0x0301 shl byte bl, 3 ;select read mode mov dword edx, VGA_GRAPHIC_INDEX mov byte al, 5 out word dx, al mov dword edx, VGA_GRAPHIC_DATA in byte al, dx and byte al, 0xf7 or byte al, bl out word dx, al ;select read plane mov dword edx, VGA_GRAPHIC_INDEX mov byte al, 4 out word dx, al mov dword edx, VGA_GRAPHIC_DATA mov byte al, bh out word dx, al ret ;**************************************************************************** ;* modex_save_registers ;**************************************************************************** section .text modex_save_registers: .crt: test dword [modex_state], MODEX_CRT_REGISTERS_SAVED jnz short .attribute mov dword ebx, modex_registers.crt call near modex_get_crt_registers or dword [modex_state], MODEX_CRT_REGISTERS_SAVED .attribute: test dword [modex_state], MODEX_ATTRIBUTE_REGISTERS_SAVED jnz short .graphic mov dword ebx, modex_registers.attribute call near modex_get_attribute_registers or dword [modex_state], MODEX_ATTRIBUTE_REGISTERS_SAVED .graphic: test dword [modex_state], MODEX_GRAPHIC_REGISTERS_SAVED jnz short .sequencer mov dword ebx, modex_registers.graphic call near modex_get_graphic_registers or dword [modex_state], MODEX_GRAPHIC_REGISTERS_SAVED .sequencer: test dword [modex_state], MODEX_SEQUENCER_REGISTERS_SAVED jnz short .misc mov dword ebx, modex_registers.sequencer call near modex_get_sequencer_registers or dword [modex_state], MODEX_SEQUENCER_REGISTERS_SAVED .misc: test dword [modex_state], MODEX_MISC_REGISTERS_SAVED jnz short .colormap mov dword ebx, modex_registers.misc call near modex_get_misc_registers or dword [modex_state], MODEX_MISC_REGISTERS_SAVED .colormap: test dword [modex_state], MODEX_COLORMAP_SAVED jnz short .end mov dword ebx, modex_registers.colormap call near modex_get_colormap or dword [modex_state], MODEX_COLORMAP_SAVED .end: ret ;**************************************************************************** ;* modex_restore_registers ;**************************************************************************** section .text modex_restore_registers: .crt: test dword [modex_state], MODEX_CRT_REGISTERS_SAVED jz short .attribute mov dword ebx, modex_registers.crt call near modex_set_crt_registers .attribute: test dword [modex_state], MODEX_ATTRIBUTE_REGISTERS_SAVED jz short .graphic mov dword ebx, modex_registers.attribute call near modex_set_attribute_registers .graphic: test dword [modex_state], MODEX_GRAPHIC_REGISTERS_SAVED jz short .sequencer mov dword ebx, modex_registers.graphic call near modex_set_graphic_registers .sequencer: test dword [modex_state], MODEX_SEQUENCER_REGISTERS_SAVED jz short .misc mov dword ebx, modex_registers.sequencer call near modex_set_sequencer_registers .misc: test dword [modex_state], MODEX_MISC_REGISTERS_SAVED jz short .screen_on mov dword ebx, modex_registers.misc call near modex_set_misc_registers .screen_on: test dword [modex_state], (MODEX_SEQUENCER_REGISTERS_SAVED | MODEX_ATTRIBUTE_REGISTERS_SAVED) jz short .colormap call near modex_screen_on .colormap: test dword [modex_state], MODEX_COLORMAP_SAVED jz short .end mov dword ebx, modex_registers.colormap call near modex_set_colormap .end: ret ;**************************************************************************** ;* modex_save_charset ;**************************************************************************** section .text modex_save_charset: test dword [modex_state], MODEX_CHARSET_SAVED jnz short .end or dword [modex_state], MODEX_CHARSET_SAVED xor dword ebx, ebx call near modex_select_read_plane mov dword ecx, 0x4000 mov dword esi, [modex_address] mov dword edi, modex_charset_saved cld rep movsd mov dword ebx, 0x0100 call near modex_select_read_plane mov dword ecx, 0x4000 mov dword esi, [modex_address] mov dword edi, (modex_charset_saved + 0x10000) cld rep movsd mov dword ebx, 0x0200 call near modex_select_read_plane mov dword ecx, 0x4000 mov dword esi, [modex_address] mov dword edi, (modex_charset_saved + 0x20000) cld rep movsd mov dword ebx, 0x0300 call near modex_select_read_plane mov dword ecx, 0x4000 mov dword esi, [modex_address] mov dword edi, (modex_charset_saved + 0x30000) cld rep movsd .end: ret ;**************************************************************************** ;* modex_restore_charset ;**************************************************************************** section .text modex_restore_charset: test dword [modex_state], MODEX_CHARSET_SAVED jz short .end mov dword ebx, 0x0100 call near modex_select_write_plane mov dword ecx, 0x4000 mov dword esi, modex_charset_saved mov dword edi, [modex_address] cld rep movsd mov dword ebx, 0x0200 call near modex_select_write_plane mov dword ecx, 0x4000 mov dword esi, (modex_charset_saved + 0x10000) mov dword edi, [modex_address] cld rep movsd mov dword ebx, 0x0400 call near modex_select_write_plane mov dword ecx, 0x4000 mov dword esi, (modex_charset_saved + 0x20000) mov dword edi, [modex_address] cld rep movsd mov dword ebx, 0x0800 call near modex_select_write_plane mov dword ecx, 0x4000 mov dword esi, (modex_charset_saved + 0x30000) mov dword edi, [modex_address] cld rep movsd .end: ret ;**************************************************************************** ;* modex_restore_kdmode ;**************************************************************************** section .text modex_restore_kdmode: test dword [modex_state], MODEX_KDMODE_SAVED jz short .end ;tell the kernel that we have left graphics mode mov dword eax, SYS_IOCTL mov dword ebx, STDIN mov dword ecx, KDSETMODE mov dword edx, [modex_kdmode] int byte 0x80 .end: ret ;**************************************************************************** ;* modex_prepare_colormap ;**************************************************************************** section .text modex_prepare_colormap: sub dword esp, 1024 xor dword eax, eax mov dword ebx, 0x0000003f mov dword ecx, 0x00003f00 mov dword edx, 0x003f0000 xor dword ebp, ebp .set_colormap: mov dword [esp + 4 * ebp], eax mov dword [esp + 4 * ebp + 0x100], ebx mov dword [esp + 4 * ebp + 0x200], ecx mov dword [esp + 4 * ebp + 0x300], edx inc dword eax add dword ebx, 0x0000013f add dword ecx, 0x00013f00 sub dword edx, 0x00010000 and dword ebx, 0x003f3f3f and dword ecx, 0x003f3f3f inc dword ebp cmp dword ebp, byte 0x40 jb short .set_colormap mov dword ebx, esp call near modex_set_colormap add dword esp, 1024 ret ;**************************************************************************** ;* modex_draw ;**************************************************************************** section .text modex_draw: %ifdef MODE_PLANAR mov dword ebx, 0x0f00 call near modex_select_write_plane mov dword ebx, YRES mov dword edi, [modex_address] .line: mov dword ecx, XRES mov dword eax, ebx .pixel: stosb inc dword eax dec dword ecx jnz short .pixel dec dword ebx jnz short .line %else ;MODE_PLANAR mov dword ebx, YRES mov dword edi, [modex_address] .line: mov dword ecx, (XRES / 4) mov dword eax, ebx .pixel: push dword ebx push dword ecx push dword eax mov dword ebx, 0x0100 call near modex_select_write_plane pop dword eax mov byte [edi], al inc dword eax push dword eax mov dword ebx, 0x0200 call near modex_select_write_plane pop dword eax mov byte [edi], al inc dword eax push dword eax mov dword ebx, 0x0400 call near modex_select_write_plane pop dword eax mov byte [edi], al inc dword eax push dword eax mov dword ebx, 0x0800 call near modex_select_write_plane pop dword eax stosb pop dword ecx pop dword ebx inc dword eax dec dword ecx jnz short .pixel dec dword ebx jnz short .line %endif ;MODE_PLANAR ret ;**************************************************************************** ;* modex_error ;**************************************************************************** section .text modex_error: call near modex_restore_charset call near modex_restore_registers call near modex_restore_kdmode ;finished xor dword eax, eax inc dword eax mov dword ebx, eax int byte 0x80 ;**************************************************************************** ;* modex_end ;**************************************************************************** section .text modex_end: call near modex_restore_charset call near modex_restore_registers call near modex_restore_kdmode ;finished xor dword eax, eax xor dword ebx, ebx inc dword eax int byte 0x80 ;*********************************************** linuxassembly@unusedino.de *