20110225-1058

1 files changed, 30 insertions, 0 deletions

diff --git a/Plan9/power/include/emu.h b/Plan9/power/include/emu.h
new file mode 100644
index 00000000..79a5c56e
--- /dev/null
+++ b/Plan9/power/include/emu.h
@@ -0,0 +1,30 @@
+/*
+ * system- and machine-specific declarations for emu:
+ * floating-point save and restore, signal handling primitive, and
+ * implementation of the current-process variable `up'.
+ */
+
+extern	Proc**	Xup;
+#define	up	(*Xup)
+
+typedef	struct	FPU	FPU;
+
+/*
+ * This structure must agree with FPsave and FPrestore asm routines
+ */
+typedef struct FPU FPU;
+struct FPU
+{
+	double	fpreg[32];
+	union {
+		double	fpscrd;
+		struct {
+			ulong	pad;
+			ulong	fpscr;
+		};
+	};
+};
+
+typedef jmp_buf osjmpbuf;
+#define	ossetjmp(buf)	setjmp(buf)
+