/* * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software contributed to Berkeley by * Ralph Campbell. This file is derived from the MIPS RISC * Architecture book by Gerry Kane. * * %sccs.include.redist.c% * * @(#)regdef.h 8.1 (Berkeley) 06/10/93 */ #define zero $0 /* always zero */ #define AT $at /* assembler temp */ #define v0 $2 /* return value */ #define v1 $3 #define a0 $4 /* argument registers */ #define a1 $5 #define a2 $6 #define a3 $7 #define t0 $8 /* temp registers (not saved across subroutine calls) */ #define t1 $9 #define t2 $10 #define t3 $11 #define t4 $12 #define t5 $13 #define t6 $14 #define t7 $15 #define s0 $16 /* saved across subroutine calls (callee saved) */ #define s1 $17 #define s2 $18 #define s3 $19 #define s4 $20 #define s5 $21 #define s6 $22 #define s7 $23 #define t8 $24 /* two more temp registers */ #define t9 $25 #define k0 $26 /* kernel temporary */ #define k1 $27 #define gp $28 /* global pointer */ #define sp $29 /* stack pointer */ #define s8 $30 /* one more callee saved */ #define ra $31 /* return address */