1 files changed, 38 insertions, 0 deletions
diff --git a/os/boot/puma/mem.h b/os/boot/puma/mem.h
new file mode 100644
index 00000000..35bca0a6
--- /dev/null
+++ b/os/boot/puma/mem.h
@@ -0,0 +1,38 @@
+/*
+ * Memory and machine-specific definitions.  Used in C and assembler.
+ */
+
+/*
+ * Sizes
+ */
+#define	BI2BY		8			/* bits per byte */
+#define	BI2WD		32			/* bits per word */
+#define	BY2WD		4			/* bytes per word */
+#define	BY2PG		4096			/* bytes per page */
+#define	WD2PG		(BY2PG/BY2WD)		/* words per page */
+#define	PGSHIFT		12			/* log(BY2PG) */
+#define	PGROUND(s)	(((s)+(BY2PG-1))&~(BY2PG-1))
+
+#define	MAXMACH		1			/* max # cpus system can run */
+
+/*
+ * Time
+ */
+#define	HZ		(20)				/* clock frequency */
+#define	MS2HZ		(1000/HZ)			/* millisec per clock tick */
+#define	TK2SEC(t)	((t)/HZ)			/* ticks to seconds */
+#define	TK2MS(t)	((((ulong)(t))*1000)/HZ)	/* ticks to milliseconds */
+#define	MS2TK(t)	((((ulong)(t))*HZ)/1000)	/* milliseconds to ticks */
+
+/*
+ * Fundamental addresses
+ */
+
+/*
+ *  Address spaces
+ *
+ *  Kernel is at 0x00008000
+ */
+#define	KZERO		0x00000000		/* base of kernel address space */
+#define	KTZERO		KZERO			/* first address in kernel text */
+#define	MACHSIZE	4096