| Line 440... |
Line 440... |
static void write_word();
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static void write_word();
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static void bios_printf();
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static void bios_printf();
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static void int09_function();
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static void int09_function();
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static void int13_harddisk();
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static void int13_harddisk();
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static void transf_sect();
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static void int13_diskette_function();
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static void int13_diskette_function();
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static void int16_function();
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static void int16_function();
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static void int19_function();
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static void int19_function();
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static Bit16u get_CS();
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static Bit16u get_CS();
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static Bit16u get_SS();
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static Bit16u get_SS();
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| Line 960... |
Line 961... |
jmp halt2_loop
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jmp halt2_loop
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ASM_END
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ASM_END
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}
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}
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}
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}
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static char bios_svn_version_string[] = "$Revision: 1.11 $ $Date: 2009-03-02 01:02:32 $";
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static char bios_svn_version_string[] = "$Revision: 1.12 $ $Date: 2009-03-03 16:52:58 $";
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//--------------------------------------------------------------------------
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//--------------------------------------------------------------------------
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// print_bios_banner
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// print_bios_banner
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// displays a the bios version
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// displays a the bios version
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//--------------------------------------------------------------------------
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//--------------------------------------------------------------------------
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| Line 1485... |
Line 1486... |
CLEAR_CF(); // no error
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CLEAR_CF(); // no error
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return;
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return;
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}
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}
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void
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void
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transf_sect(seg, offset)
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Bit16u seg;
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Bit16u offset;
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{
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ASM_START
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push bp
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mov bp, sp
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|
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push ax
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push bx
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push cx
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push dx
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push di
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push ds
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mov ax, 4[bp] ; segment
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mov ds, ax
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mov bx, 6[bp] ; offset
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mov dx, #0xe000
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mov cx, #256
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xor di, di
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one_sect:
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in ax, dx ; read word from flash
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mov [bx+di], ax ; write word
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inc dx
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inc dx
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inc di
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inc di
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loop one_sect
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|
|
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pop ds
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pop di
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pop dx
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pop cx
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pop bx
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pop ax
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|
|
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pop bp
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ASM_END
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}
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|
|
|
void
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int13_diskette_function(DS, ES, DI, SI, BP, ELDX, BX, DX, CX, AX, IP, CS, FLAGS)
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int13_diskette_function(DS, ES, DI, SI, BP, ELDX, BX, DX, CX, AX, IP, CS, FLAGS)
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Bit16u DS, ES, DI, SI, BP, ELDX, BX, DX, CX, AX, IP, CS, FLAGS;
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Bit16u DS, ES, DI, SI, BP, ELDX, BX, DX, CX, AX, IP, CS, FLAGS;
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{
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{
|
Bit8u drive, num_sectors, track, sector, head, status;
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Bit8u drive, num_sectors, track, sector, head, status;
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Bit16u base_address, base_count, base_es;
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Bit16u base_address, base_count, base_es;
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| Line 1551... |
Line 1595... |
// Configure the sector address
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// Configure the sector address
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for (j=0; j<num_sectors; j++)
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for (j=0; j<num_sectors; j++)
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{
|
{
|
outw(0xe000, log_sector+j);
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outw(0xe000, log_sector+j);
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base_count = base_address + (j << 9);
|
base_count = base_address + (j << 9);
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for (i=0; i<512; i+=2)
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transf_sect (last_addr, base_count);
|
{
|
|
tmp = inw (0xe000+i);
|
|
write_word (last_addr, base_count+i, tmp);
|
|
}
|
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}
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}
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|
|
// ??? should track be new val from return_status[3] ?
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// ??? should track be new val from return_status[3] ?
|
set_diskette_current_cyl(drive, track);
|
set_diskette_current_cyl(drive, track);
|
// AL = number of sectors read (same value as passed)
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// AL = number of sectors read (same value as passed)
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| Line 2101... |
Line 2141... |
;; EBDA setup
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;; EBDA setup
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call ebda_post
|
call ebda_post
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|
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;; Keyboard
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;; Keyboard
|
SET_INT_VECTOR(0x09, #0xF000, #int09_handler)
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SET_INT_VECTOR(0x09, #0xF000, #int09_handler)
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SET_INT_VECTOR(0x16, #0xF000, #int16_handler)
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;SET_INT_VECTOR(0x16, #0xF000, #int16_handler)
|
|
|
xor ax, ax
|
xor ax, ax
|
mov ds, ax
|
mov ds, ax
|
mov 0x0417, al /* keyboard shift flags, set 1 */
|
mov 0x0417, al /* keyboard shift flags, set 1 */
|
mov 0x0418, al /* keyboard shift flags, set 2 */
|
mov 0x0418, al /* keyboard shift flags, set 2 */
|
