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