| /kernel/trunk/boot/bootcode.inc |
|---|
| 542,7 → 542,7 |
| .pgup: cmp ah,0x49 ; page up |
| jne .pgdn |
| sub si, size_of_step*9 |
| sub si, size_of_step*long_v_table |
| cmp si, modes_table |
| jae @f |
| mov si, modes_table |
| 549,7 → 549,7 |
| @@: |
| mov word [cursor_pos], si |
| mov si, word [home_cursor] |
| sub si, size_of_step*9 |
| sub si, size_of_step*long_v_table |
| cmp si, modes_table |
| jae @f |
| mov si, modes_table |
| 560,7 → 560,7 |
| .pgdn: cmp ah,0x51 ; page down |
| jne .enter |
| mov ax, [end_cursor] |
| add si, size_of_step*9 |
| add si, size_of_step*long_v_table |
| cmp si, ax |
| jb @f |
| mov si, ax |
| 568,8 → 568,8 |
| @@: |
| mov word [cursor_pos], si |
| mov si, word [home_cursor] |
| sub ax, size_of_step*9 |
| add si, size_of_step*9 |
| sub ax, size_of_step*long_v_table |
| add si, size_of_step*long_v_table |
| cmp si, ax |
| jb @f |
| mov si, ax |
| /kernel/trunk/boot/bootvesa.inc |
|---|
| 75,6 → 75,7 |
| end_cursor dw 0 ;end of position current shows rows a table |
| long_v_table equ 9 ;long of visible video table |
| size_of_step equ 10 |
| scroll_area_size equ (long_v_table-2) |
| int2str: |
| dec bl |
| jz @f |
| 523,7 → 524,7 |
| stosb |
| add di, 80*2-1 |
| mov al, 32 |
| mov cx, 7 |
| mov cx, scroll_area_size |
| @@: |
| stosb |
| add di, 80*2-1 |
| 542,7 → 543,7 |
| cwd |
| div bx |
| mov di, ax |
| mov ax, 7*9 |
| mov ax, scroll_area_size*long_v_table |
| cwd |
| div si |
| test ax, ax |
| 549,17 → 550,17 |
| jnz @f |
| inc ax |
| @@: |
| cmp al, 7 |
| cmp al, scroll_area_size |
| jb @f |
| mov al, 7 |
| mov al, scroll_area_size |
| @@: |
| mov cx, ax |
| ; cx = scroll height |
| ; calculate scroll pos |
| xor bx, bx ; initialize scroll pos |
| sub al, 7+1 |
| sub al, scroll_area_size+1 |
| neg al |
| sub si, 9-1 |
| sub si, long_v_table-1 |
| jbe .draw_scroll |
| mul di |
| div si |