| 15,6 → 15,119 |
|---|
| ; |
| ;========================================================================== |
| |
| ; 16-bit data |
| org $+0x10000 |
| |
| old_ints_h: |
| dw 0x400 |
| dd 0 |
| dw 0 |
| |
| kernel_restart_bootblock: |
| db 1 ; version |
| dw 1 ; floppy image is in memory |
| dd 0 ; cannot save parameters |
| |
| |
| align 32 |
| |
| ; GDT TABLE |
| |
| gdts: |
| |
| dw gdte-$-1 |
| dd gdts |
| dw 0 |
| |
| int_code_l: |
| os_code_l: |
| |
| dw 0xffff |
| dw 0x0000 |
| db 0x00 |
| dw 11011111b *256 +10011010b |
| db 0x00 |
| |
| int_data_l: |
| os_data_l: |
| |
| dw 0xffff |
| dw 0x0000 |
| db 0x00 |
| dw 11011111b *256 +10010010b |
| db 0x00 |
| |
| ; --------------- APM --------------------- |
| apm_code_32: |
| dw 0x10 ; limit 64kb |
| db 0, 0, 0 |
| dw 11011111b *256 +10011010b |
| db 0x00 |
| apm_code_16: |
| dw 0x10 |
| db 0, 0, 0 |
| dw 10011111b *256 +10011010b |
| db 0x00 |
| apm_data_16: |
| dw 0x10 |
| db 0, 0, 0 |
| dw 10011111b *256 +10010010b |
| db 0x00 |
| ; ----------------------------------------- |
| |
| app_code_l: |
| dw 0xFFFF;((0x80000000-std_application_base_address) shr 12) and 0xffff |
| dw 0 |
| db 0x40 |
| db cpl3 |
| dw G32+D32+0x6000+0x7; |
| |
| app_data_l: |
| dw 0xFFFF;(0x80000000-std_application_base_address) shr 12 and 0xffff |
| dw 0 |
| db 0x40 |
| db drw3 |
| dw G32+D32+0x6000+0x7; |
| |
| graph_data_l: |
| |
| dw 0x3ff |
| dw 0x0000 |
| db 0x00 |
| dw 11010000b *256 +11110010b |
| db 0x00 |
| |
| tss0_l: |
| ; times (max_processes+10) dd 0,0 |
| gdte = $ + (max_processes+10)*8 |
| |
| ; videomodes table |
| gr_table: |
| dw 0x112+0100000000000000b , 640 , 480 ; 1 |
| dw 0x115+0100000000000000b , 800 , 600 ; 2 |
| dw 0x118+0100000000000000b , 1024 , 768 ; 3 |
| dw 0x11B+0100000000000000b , 1280 , 1024 ; 4 |
| dw 0x112 , 640 , 480 ; 5 |
| dw 0x115 , 800 , 600 ; 6 |
| dw 0x118 , 1024 , 768 ; 7 |
| dw 0x11B , 1280 ,1024 ; 8 |
| dw 0x13, 640, 480 ; 9 |
| dw 0x12, 640, 480 ; 0 |
| |
| ; table for move to extended memory (int 15h, ah=87h) |
| movedesc: |
| db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
| db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
| |
| db 0xff,0xff,0x0,0xa0,0x00,0x93,0x0,0x0 |
| db 0xff,0xff,0x0,0x00,0x10,0x93,0x0,0x0 |
| |
| db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
| db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
| db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
| db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
| org $-0x10000 |
| |
| putchar: |
| ; in: al=character |
| mov ah, 0Eh |
| 139,16 → 252,16 |
|---|
| call setcursor |
| } |
| |
| pagetable_set: |
| ;pagetable_set: |
| ;eax - physical address |
| ;es:di - page table |
| ;ecx - number of pages to map |
| or al, 7 |
| @@: |
| stosd |
| add eax, 1000h |
| loop @b |
| ret |
| ; or al, 7 |
| ;@@: |
| ; stosd |
| ; add eax, 1000h |
| ; loop @b |
| ; ret |
| |
| boot_read_floppy: |
| push si |
| 170,35 → 283,6 |
|---|
| pop si |
| ret |
| |
| ; 16-bit data |
| ; videomodes table |
| org $+0x10000 |
| gr_table: |
| dw 0x112+0100000000000000b , 640 , 480 ; 1 |
| dw 0x115+0100000000000000b , 800 , 600 ; 2 |
| dw 0x118+0100000000000000b , 1024 , 768 ; 3 |
| dw 0x11B+0100000000000000b , 1280 , 1024 ; 4 |
| dw 0x112 , 640 , 480 ; 5 |
| dw 0x115 , 800 , 600 ; 6 |
| dw 0x118 , 1024 , 768 ; 7 |
| dw 0x11B , 1280 ,1024 ; 8 |
| dw 0x13, 640, 480 ; 9 |
| dw 0x12, 640, 480 ; 0 |
| |
| ; table for move to extended memory (int 15h, ah=87h) |
| movedesc: |
| db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
| db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
| |
| db 0xff,0xff,0x0,0xa0,0x00,0x93,0x0,0x0 |
| db 0xff,0xff,0x0,0x00,0x10,0x93,0x0,0x0 |
| |
| db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
| db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
| db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
| db 0x00,0x00,0x0,0x00,0x00,0x00,0x0,0x0 |
| org $-0x10000 |
| |
| ;========================================================================= |
| ; |
| ; 16 BIT CODE |