Merged in nbuwe/inferno-os/NetBSD/powerpc (pull request #10)

NetBSD/powerpc

Approved-by: Charles Forsyth <charles.forsyth@gmail.com>

1 files changed, 28 insertions, 0 deletions

diff --git a/NetBSD/power/include/emu.h b/NetBSD/power/include/emu.h
new file mode 100644
index 00000000..83af30d8
--- /dev/null
+++ b/NetBSD/power/include/emu.h
@@ -0,0 +1,28 @@
+/*
+ * system- and machine-specific declarations for emu:
+ * floating-point save and restore, signal handling primitive, and
+ * implementation of the current-process variable `up'.
+ */
+
+/*
+ * This structure must agree with FPsave and FPrestore asm routines
+ */
+typedef struct FPU FPU;
+struct FPU
+{
+	uchar	env[18*8];
+};
+
+#define KSTACK (32 * 1024)
+
+static __inline Proc *getup(void) {
+	Proc *p;
+	__asm__(	"mr	%0, 1" : "=r" (p));
+	return *(Proc **)((unsigned long)p & ~(KSTACK - 1));
+};
+
+#define	up	(getup())
+
+typedef sigjmp_buf osjmpbuf;
+#define	ossetjmp(buf)	sigsetjmp(buf, 1)
+