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-rw-r--r--sysdeps/i960/mul_1.s23
1 files changed, 23 insertions, 0 deletions
diff --git a/sysdeps/i960/mul_1.s b/sysdeps/i960/mul_1.s
new file mode 100644
index 0000000000..e75ea42d39
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+++ b/sysdeps/i960/mul_1.s
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+.text
+	.align	4
+	.globl	___mpn_mul_1
+___mpn_mul_1:
+	subo	g2,0,g2
+	shlo	2,g2,g4
+	subo	g4,g1,g1
+	subo	g4,g0,g13
+	mov	0,g0
+
+	cmpo	1,0		# clear C bit on AC.cc
+
+Loop:	ld	(g1)[g2*4],g5
+	emul	g3,g5,g6
+
+	addc	g0,g6,g6	# relies on that C bit is clear
+	st	g6,(g13)[g2*4]
+	addc	0,g7,g0
+
+	addo	g2,1,g2
+	cmpobne	0,g2,Loop	# when branch is taken, clears C bit
+
+	ret