diff options
Diffstat (limited to 'pc-bios/optionrom/optionrom.h')
| -rw-r--r-- | pc-bios/optionrom/optionrom.h | 40 |
1 files changed, 25 insertions, 15 deletions
diff --git a/pc-bios/optionrom/optionrom.h b/pc-bios/optionrom/optionrom.h index fbdd48a021..aa783deed1 100644 --- a/pc-bios/optionrom/optionrom.h +++ b/pc-bios/optionrom/optionrom.h @@ -97,22 +97,28 @@ #define BOOT_ROM_START \ OPTION_ROM_START \ - push %eax; \ - push %ds; \ - \ - /* setup ds so we can access the IVT */ \ - xor %ax, %ax; \ - mov %ax, %ds; \ - \ - /* install our int 19 handler */ \ - movw $int19_handler, (0x19*4); \ - mov %cs, (0x19*4+2); \ - \ - pop %ds; \ - pop %eax; \ lret; \ - \ - int19_handler:; \ + .org 0x18; \ + .short 0; \ + .short _pnph; \ + _pnph: \ + .ascii "$PnP"; \ + .byte 0x01; \ + .byte ( _pnph_len / 16 ); \ + .short 0x0000; \ + .byte 0x00; \ + .byte 0x00; \ + .long 0x00000000; \ + .short _manufacturer; \ + .short _product; \ + .long 0x00000000; \ + .short 0x0000; \ + .short 0x0000; \ + .short _bev; \ + .short 0x0000; \ + .short 0x0000; \ + .equ _pnph_len, . - _pnph; \ + _bev:; \ /* DS = CS */ \ movw %cs, %ax; \ movw %ax, %ds; @@ -122,5 +128,9 @@ _end: #define BOOT_ROM_END \ + _manufacturer:; \ + .asciz "QEMU"; \ + _product:; \ + .asciz BOOT_ROM_PRODUCT; \ OPTION_ROM_END |