📄 idtmon.s
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/* * idtmon.S -- lo-level entry points into IDT monitor. * * Copyright (c) 1996 Cygnus Support * * The authors hereby grant permission to use, copy, modify, distribute, * and license this software and its documentation for any purpose, provided * that existing copyright notices are retained in all copies and that this * notice is included verbatim in any distributions. No written agreement, * license, or royalty fee is required for any of the authorized uses. * Modifications to this software may be copyrighted by their authors * and need not follow the licensing terms described here, provided that * the new terms are clearly indicated on the first page of each file where * they apply. */#ifdef __mips16/* This file contains 32 bit assembly code. */ .set nomips16#endif#include "regs.S" .text .align 2/* Provide named functions for entry into the IDT monitor: */#define INDIRECT(name,index) \ .globl name; \ .ent name; \name: la $2,+(0xbfc00000+((index)*8)); \ j $2; \ .end name/* The following magic numbers are for the slots into the IDT monitor: */INDIRECT(open,6)INDIRECT(read,7)INDIRECT(write,8)INDIRECT(close,10)INDIRECT(inbyte,11)INDIRECT(outbyte,12)INDIRECT(mon_printf,16)INDIRECT(_flush_cache,28)INDIRECT(get_mem_info,55) /* expects pointer to three word vector *//* EOF idtmon.S */
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