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Last change
on this file since 550 was
444,
checked in by satin@…, 7 years ago
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add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
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File size:
1.4 KB
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| 1 | /* |
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| 2 | * idtmon.S -- lo-level entry points into IDT monitor. |
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| 3 | * |
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| 4 | * Copyright (c) 1996 Cygnus Support |
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| 5 | * |
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| 6 | * The authors hereby grant permission to use, copy, modify, distribute, |
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| 7 | * and license this software and its documentation for any purpose, provided |
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| 8 | * that existing copyright notices are retained in all copies and that this |
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| 9 | * notice is included verbatim in any distributions. No written agreement, |
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| 10 | * license, or royalty fee is required for any of the authorized uses. |
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| 11 | * Modifications to this software may be copyrighted by their authors |
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| 12 | * and need not follow the licensing terms described here, provided that |
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| 13 | * the new terms are clearly indicated on the first page of each file where |
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| 14 | * they apply. |
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| 15 | */ |
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| 16 | |
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| 17 | #ifdef __mips16 |
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| 18 | /* This file contains 32 bit assembly code. */ |
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| 19 | .set nomips16 |
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| 20 | #endif |
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| 21 | |
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| 22 | #include "regs.S" |
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| 23 | |
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| 24 | .text |
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| 25 | .align 2 |
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| 26 | |
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| 27 | /* Provide named functions for entry into the IDT monitor: */ |
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| 28 | #define INDIRECT(name,index) \ |
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| 29 | .globl name; \ |
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| 30 | .ent name; \ |
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| 31 | name: la $2,+(0xbfc00000+((index)*8)); \ |
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| 32 | j $2; \ |
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| 33 | .end name |
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| 34 | |
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| 35 | /* The following magic numbers are for the slots into the IDT monitor: */ |
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| 36 | INDIRECT(open,6) |
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| 37 | INDIRECT(read,7) |
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| 38 | INDIRECT(write,8) |
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| 39 | INDIRECT(close,10) |
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| 40 | INDIRECT(inbyte,11) |
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| 41 | INDIRECT(outbyte,12) |
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| 42 | INDIRECT(unlink,13) |
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| 43 | INDIRECT(lseek,14) |
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| 44 | INDIRECT(stat,15) |
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| 45 | INDIRECT(mon_printf,16) |
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| 46 | INDIRECT(_flush_cache,28) |
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| 47 | INDIRECT(get_mem_info,55) /* expects pointer to three word vector */ |
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| 48 | |
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| 49 | /* EOF idtmon.S */ |
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