First commit

1 files changed, 28 insertions, 0 deletions

diff --git a/libpsn00b/libc/memcpy.s b/libpsn00b/libc/memcpy.s
new file mode 100644
index 0000000..e1a4e30
--- /dev/null
+++ b/libpsn00b/libc/memcpy.s
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+# High speed ASM memcpy implementation by Lameguy64
+#
+# Part of PSn00bSDK
+
+.set noreorder
+
+.section .text
+
+# Arguments: 
+#	a0 - destination address
+#	a1 - source adress
+#	a2 - bytes to copy
+.global memcpy
+.type memcpy, @function
+memcpy:
+	move	$v0, $a0
+.loop:
+	blez	$a2, .exit
+	addi	$a2, -1
+	lbu		$a3, 0($a1)
+	addiu	$a1, 1
+	sb		$a3, 0($a0)
+	b		.loop
+	addiu	$a0, 1
+.exit:
+	jr		$ra
+	nop
+	
\ No newline at end of file