aboutsummaryrefslogtreecommitdiff
path: root/ports/sysdeps/mips/sys/regdef.h
diff options
context:
space:
mode:
Diffstat (limited to 'ports/sysdeps/mips/sys/regdef.h')
-rw-r--r--ports/sysdeps/mips/sys/regdef.h81
1 files changed, 81 insertions, 0 deletions
diff --git a/ports/sysdeps/mips/sys/regdef.h b/ports/sysdeps/mips/sys/regdef.h
new file mode 100644
index 0000000000..30e35c8453
--- /dev/null
+++ b/ports/sysdeps/mips/sys/regdef.h
@@ -0,0 +1,81 @@
+/* Copyright (C) 1997, 1998, 2002, 2003, 2004 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ralf Baechle <ralf@gnu.org>.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _SYS_REGDEF_H
+#define _SYS_REGDEF_H
+
+#include <sgidefs.h>
+
+/*
+ * Symbolic register names for 32 bit ABI
+ */
+#define zero $0 /* wired zero */
+#define AT $1 /* assembler temp - uppercase because of ".set at" */
+#define v0 $2 /* return value */
+#define v1 $3
+#define a0 $4 /* argument registers */
+#define a1 $5
+#define a2 $6
+#define a3 $7
+#if _MIPS_SIM != _ABIO32
+#define a4 $8
+#define a5 $9
+#define a6 $10
+#define a7 $11
+#define t0 $12
+#define t1 $13
+#define t2 $14
+#define t3 $15
+#define ta0 a4
+#define ta1 a5
+#define ta2 a6
+#define ta3 a7
+#else /* if _MIPS_SIM == _ABIO32 */
+#define t0 $8 /* caller saved */
+#define t1 $9
+#define t2 $10
+#define t3 $11
+#define t4 $12
+#define t5 $13
+#define t6 $14
+#define t7 $15
+#define ta0 t4
+#define ta1 t5
+#define ta2 t6
+#define ta3 t7
+#endif /* _MIPS_SIM == _ABIO32 */
+#define s0 $16 /* 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 /* caller saved */
+#define t9 $25
+#define jp $25 /* PIC jump register */
+#define k0 $26 /* kernel scratch */
+#define k1 $27
+#define gp $28 /* global pointer */
+#define sp $29 /* stack pointer */
+#define fp $30 /* frame pointer */
+#define s8 $30 /* same like fp! */
+#define ra $31 /* return address */
+
+#endif /* _SYS_REGDEF_H */