1 files changed, 91 insertions, 0 deletions
diff --git a/emu/NetBSD/asm-power.S b/emu/NetBSD/asm-power.S
new file mode 100644
index 00000000..da40e825
--- /dev/null
+++ b/emu/NetBSD/asm-power.S
@@ -0,0 +1,91 @@
+#include <machine/asm.h>
+
+ENTRY_NOPROFILE(FPsave)
+	stfd	%f14,0*8(%r3)
+	stfd	%f15,1*8(%r3)
+	stfd	%f16,2*8(%r3)
+	stfd	%f17,3*8(%r3)
+	stfd	%f18,4*8(%r3)
+	stfd	%f19,5*8(%r3)
+	stfd	%f20,6*8(%r3)
+	stfd	%f21,7*8(%r3)
+	stfd	%f22,8*8(%r3)
+	stfd	%f23,9*8(%r3)
+	stfd	%f24,10*8(%r3)
+	stfd	%f25,11*8(%r3)
+	stfd	%f26,12*8(%r3)
+	stfd	%f27,13*8(%r3)
+	stfd	%f28,14*8(%r3)
+	stfd	%f29,15*8(%r3)
+	stfd	%f30,16*8(%r3)
+	stfd	%f31,17*8(%r3)
+	blr
+	END(FPsave)
+
+ENTRY_NOPROFILE(FPrestore)
+	lfd	%f14,0*8(%r3)
+	lfd	%f15,1*8(%r3)
+	lfd	%f16,2*8(%r3)
+	lfd	%f17,3*8(%r3)
+	lfd	%f18,4*8(%r3)
+	lfd	%f19,5*8(%r3)
+	lfd	%f20,6*8(%r3)
+	lfd	%f21,7*8(%r3)
+	lfd	%f22,8*8(%r3)
+	lfd	%f23,9*8(%r3)
+	lfd	%f24,10*8(%r3)
+	lfd	%f25,11*8(%r3)
+	lfd	%f26,12*8(%r3)
+	lfd	%f27,13*8(%r3)
+	lfd	%f28,14*8(%r3)
+	lfd	%f29,15*8(%r3)
+	lfd	%f30,16*8(%r3)
+	lfd	%f31,17*8(%r3)
+	blr
+	END(FPrestore)
+
+ENTRY_NOPROFILE(_tas)
+	sync
+	mr	%r4, %r3
+	addi	%r5,0,0x1	
+1:
+	lwarx	%r3, 0, %r4
+	cmpwi	%r3, 0
+	bne-	2f
+	stwcx.	%r5, 0, %r4
+	bne-	1b
+2:
+	sync
+	blr
+	END(_tas)
+
+/*
+ * void
+ * executeonnewstack(void *tos, void (*tramp)(void *arg), void *arg)
+ */
+ENTRY_NOPROFILE(executeonnewstack)
+	mr	%r1,%r3		/* change stacks */
+	stwu 	%lr,-16(%r1)	/* save lr to aid the traceback */
+	li	%r0,0
+	stw 	%r0,20(%r1)
+	mr	%r3,%r5
+	mtctr 	%r4
+	bctrl	/* tramp(arg) */
+	br
+	END(executeonnewstack)
+
+/*
+ * void unlockandexit(int *key)
+ *
+ * NB: the return status may be garbaged if the stack is reused
+ *	between the unlock and the system call, but this should
+ *	not matter since no task is waiting for the result
+ */
+ENTRY_NOPROFILE(unlockandexit)
+	li	%r0,0x0
+	stw	%r0,0(%r3)	/* unlock */
+	li	%r0,1		/* sys exit; 234 is exit group */
+	li	%r3,0		/* exit status */
+	sc
+	br
+	END(unlockandexit)