Import sources from 2011-03-30 iso image

1 files changed, 86 insertions, 0 deletions

diff --git a/sys/src/libmach/2.c b/sys/src/libmach/2.c
new file mode 100755
index 000000000..792a47825
--- /dev/null
+++ b/sys/src/libmach/2.c
@@ -0,0 +1,86 @@
+/*
+ * 68020 definition
+ */
+#include <u.h>
+#include "/68020/include/ureg.h"
+#include <bio.h>
+#include <mach.h>
+
+#define	MAXREG	0
+#define	MINREG	0
+
+#define	REGOFF(x)	(ulong)(&((struct Ureg *) 0)->x)
+
+#define	VO	REGOFF(vo)		/* vo, 2 bytes */
+#define	SR	REGOFF(sr)		/* sr, 2 bytes */
+#define	R0	REGOFF(r0)
+#define	PC	REGOFF(pc)
+#define	DBMAGIC	REGOFF(magic)
+#define	SP	REGOFF(usp)
+
+#define	REGSIZE		(R0+4)
+#define	FCTL(x)		(REGSIZE+(x)*4)
+#define	FREG(x)		(FCTL(3)+(x)*12)
+#define	FPREGSIZE	(11*12)
+
+/*
+ *	68020 register set
+ */
+Reglist m68020reglist[] = {
+	{"VO",		VO,		RINT,	'x'},
+	{"SR",		SR,		RINT,	'x'},
+	{"MAGIC",	DBMAGIC,	RINT,	'X'},
+	{"PC",		PC,		RINT,	'X'},
+	{"A7",		SP,		RINT,	'X'},
+	{"KSP",		REGOFF(sp),	RINT,	'X'},
+	{"A6",		REGOFF(a6),	RINT,	'X'},
+	{"A5",		REGOFF(a5),	RINT,	'X'},
+	{"A4",		REGOFF(a4),	RINT,	'X'},
+	{"A3",		REGOFF(a3),	RINT,	'X'},
+	{"A2",		REGOFF(a2),	RINT,	'X'},
+	{"A1",		REGOFF(a1),	RINT,	'X'},
+	{"A0",		REGOFF(a0),	RINT,	'X'},
+	{"R7",		REGOFF(r7),	RINT,	'X'},
+	{"R6",		REGOFF(r6),	RINT,	'X'},
+	{"R5",		REGOFF(r5),	RINT,	'X'},
+	{"R4",		REGOFF(r4),	RINT,	'X'},
+	{"R3",		REGOFF(r3),	RINT,	'X'},
+	{"R2",		REGOFF(r2),	RINT,	'X'},
+	{"R1",		REGOFF(r1),	RINT,	'X'},
+	{"R0",		REGOFF(r0),	RINT,	'X'},
+	{"FPCR",	FCTL(0),	RFLT,	'X'},
+	{"FPSR",	FCTL(1),	RFLT,	'X'},
+	{"FPIAR",	FCTL(2),	RFLT,	'X'},
+	{"F0",		FREG(0),	RFLT,	'8'},
+	{"F1",		FREG(1),	RFLT,	'8'},
+	{"F2",		FREG(2),	RFLT,	'8'},
+	{"F3",		FREG(3),	RFLT,	'8'},
+	{"F4",		FREG(4),	RFLT,	'8'},
+	{"F5",		FREG(5),	RFLT,	'8'},
+	{"F6",		FREG(6),	RFLT,	'8'},
+	{"F7",		FREG(7),	RFLT,	'8'},
+	{0}
+};
+
+Mach m68020 =
+{
+	"68020",
+	M68020,		/* machine type */
+	m68020reglist,	/* register list */
+	REGSIZE,	/* number of bytes in reg set */
+	FPREGSIZE,	/* number of bytes in fp reg set */
+	"PC",
+	"A7",
+	0,		/* link register */
+	"a6base",	/* static base register name */
+	0,		/* value */
+	0x2000,		/* page size */
+	0x80000000ULL,	/* kernel base */
+	0x80000000ULL,	/* kernel text mask */
+	0x7FFFFFFFULL,	/* user stack top */
+	2,		/* quantization of pc */
+	4,		/* szaddr */
+	4,		/* szreg */
+	4,		/* szfloat */
+	8,		/* szdouble */
+};