| Kevin O'Connor | 1f2c307 | 2009-05-06 23:35:59 -0400 | [diff] [blame] | 1 | // Rom layout and bios assembler to C interface. |
| 2 | // |
| 3 | // Copyright (C) 2009 Kevin O'Connor <kevin@koconnor.net> |
| 4 | // |
| 5 | // This file may be distributed under the terms of the GNU LGPLv3 license. |
| 6 | |
| 7 | |
| 8 | /**************************************************************** |
| 9 | * Include of 16bit C code |
| 10 | ****************************************************************/ |
| 11 | |
| 12 | .code16gcc |
| 13 | .include "out/vgaccode.16.s" |
| 14 | |
| 15 | #include "entryfuncs.S" // ENTRY_* |
| 16 | |
| 17 | |
| 18 | /**************************************************************** |
| 19 | * Rom Header |
| 20 | ****************************************************************/ |
| 21 | |
| 22 | .section .rom.header |
| 23 | .global _rom_header, _rom_header_size, _rom_header_checksum |
| 24 | _rom_header: |
| 25 | .word 0xaa55 |
| 26 | _rom_header_size: |
| 27 | .byte 0 |
| 28 | _rom_header_entry: |
| 29 | jmp _optionrom_entry |
| 30 | _rom_header_checksum: |
| 31 | .space 22 |
| 32 | |
| 33 | |
| 34 | /**************************************************************** |
| 35 | * Entry points |
| 36 | ****************************************************************/ |
| 37 | |
| 38 | DECLFUNC _optionrom_entry |
| 39 | _optionrom_entry: |
| 40 | ENTRY_ARG vga_post |
| 41 | lretw |
| 42 | |
| Kevin O'Connor | 9f193b9 | 2009-05-16 23:31:27 -0400 | [diff] [blame^] | 43 | DECLFUNC entry_10 |
| 44 | entry_10: |
| 45 | ENTRY_ARG handle_10 |
| 46 | iretw |