git://sourceware.org / newlib-cygwin.git / blame
| Commit | Line | Data |
|---|---|---|
| 03261851 RK |
1 | /* |
| 2 | * idtmon.S -- lo-level entry points into IDT monitor. | |
| 3 | * | |
| 4 | * Copyright (c) 1996 Cygnus Support | |
| 5 | * | |
| 6 | * The authors hereby grant permission to use, copy, modify, distribute, | |
| 7 | * and license this software and its documentation for any purpose, provided | |
| 8 | * that existing copyright notices are retained in all copies and that this | |
| 9 | * notice is included verbatim in any distributions. No written agreement, | |
| 10 | * license, or royalty fee is required for any of the authorized uses. | |
| 11 | * Modifications to this software may be copyrighted by their authors | |
| 12 | * and need not follow the licensing terms described here, provided that | |
| 13 | * the new terms are clearly indicated on the first page of each file where | |
| 14 | * they apply. | |
| 15 | */ | |
| 16 | ||
| 17 | #ifdef __mips16 | |
| 18 | /* This file contains 32 bit assembly code. */ | |
| 19 | .set nomips16 | |
| 20 | #endif | |
| 21 | ||
| 22 | #include "regs.S" | |
| 23 | ||
| 24 | .text | |
| 25 | .align 2 | |
| 26 | ||
| 27 | /* Provide named functions for entry into the IDT monitor: */ | |
| 28 | #define INDIRECT(name,index) \ | |
| 29 | .globl name; \ | |
| 30 | .ent name; \ | |
| 31 | name: la $2,+(0xbfc00000+((index)*8)); \ | |
| 32 | j $2; \ | |
| 33 | .end name | |
| 34 | ||
| 35 | /* The following magic numbers are for the slots into the IDT monitor: */ | |
| 36 | INDIRECT(open,6) | |
| 37 | INDIRECT(read,7) | |
| 38 | INDIRECT(write,8) | |
| 39 | INDIRECT(close,10) | |
| 40 | INDIRECT(inbyte,11) | |
| 41 | INDIRECT(outbyte,12) | |
| 42 | INDIRECT(mon_printf,16) | |
| 43 | INDIRECT(_flush_cache,28) | |
| 44 | INDIRECT(get_mem_info,55) /* expects pointer to three word vector */ | |
| 45 | ||
| 46 | /* EOF idtmon.S */ |