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- /*
- * Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009
- * The President and Fellows of Harvard College.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
- /*
- * Macros for general-purpose register numbers for MIPS.
- *
- * Exported to userlevel because it's ~standard for that architecture.
- */
- #ifndef _KERN_MIPS_REGDEFS_H_
- #define _KERN_MIPS_REGDEFS_H_
- #define z0 $0 /* always zero register */
- #define AT $1 /* assembler temp register */
- #define v0 $2 /* value 0 */
- #define v1 $3 /* value 1 */
- #define a0 $4 /* argument 0 */
- #define a1 $5 /* argument 1 */
- #define a2 $6 /* argument 2 */
- #define a3 $7 /* argument 3 */
- #define t0 $8 /* temporary (caller-save) 0 */
- #define t1 $9 /* temporary (caller-save) 1 */
- #define t2 $10 /* temporary (caller-save) 2 */
- #define t3 $11 /* temporary (caller-save) 3 */
- #define t4 $12 /* temporary (caller-save) 4 */
- #define t5 $13 /* temporary (caller-save) 5 */
- #define t6 $14 /* temporary (caller-save) 6 */
- #define t7 $15 /* temporary (caller-save) 7 */
- #define s0 $16 /* saved (callee-save) 0 */
- #define s1 $17 /* saved (callee-save) 1 */
- #define s2 $18 /* saved (callee-save) 2 */
- #define s3 $19 /* saved (callee-save) 3 */
- #define s4 $20 /* saved (callee-save) 4 */
- #define s5 $21 /* saved (callee-save) 5 */
- #define s6 $22 /* saved (callee-save) 6 */
- #define s7 $23 /* saved (callee-save) 7 */
- #define t8 $24 /* temporary (caller-save) 8 */
- #define t9 $25 /* temporary (caller-save) 9 */
- #define k0 $26 /* kernel temporary 0 */
- #define k1 $27 /* kernel temporary 1 */
- #define gp $28 /* global pointer */
- #define sp $29 /* stack pointer */
- #define s8 $30 /* saved (callee-save) 8 = frame pointer */
- #define ra $31 /* return address */
- #endif /* _KERN_MIPS_REGDEFS_H_ */
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