1 files changed, 83 insertions, 0 deletions
diff --git a/src/lib/runtime/arm/asm.s b/src/lib/runtime/arm/asm.s
new file mode 100644
index 000000000..232ab4ddf
--- /dev/null
+++ b/src/lib/runtime/arm/asm.s
@@ -0,0 +1,83 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+TEXT _rt0_arm(SB),7,$0
+	// copy arguments forward on an even stack
+    //      	MOVW	$0(SP), R0
+    //	MOVL	0(SP), R1		// argc
+//	LEAL	4(SP), R1		// argv
+//	SUBL	$128, SP		// plenty of scratch
+//	ANDL	$~7, SP
+//	MOVL	AX, 120(SP)		// save argc, argv away
+//	MOVL	BX, 124(SP)
+
+
+// 	// write "go386\n"
+// 	PUSHL	$6
+// 	PUSHL	$hello(SB)
+// 	PUSHL	$1
+// 	CALL	sys·write(SB)
+// 	POPL	AX
+// 	POPL	AX
+// 	POPL	AX
+
+
+// 	CALL	ldt0setup(SB)
+
+	// set up %fs to refer to that ldt entry
+// 	MOVL	$(7*8+7), AX
+// 	MOVW	AX, FS
+
+// 	// store through it, to make sure it works
+// 	MOVL	$0x123, 0(FS)
+// 	MOVL	tls0(SB), AX
+// 	CMPL	AX, $0x123
+// 	JEQ	ok
+// 	MOVL	AX, 0
+// ok:
+
+// 	// set up m and g "registers"
+// 	// g is 0(FS), m is 4(FS)
+// 	LEAL	g0(SB), CX
+// 	MOVL	CX, 0(FS)
+// 	LEAL	m0(SB), AX
+// 	MOVL	AX, 4(FS)
+
+// 	// save m->g0 = g0
+// 	MOVL	CX, 0(AX)
+
+// 	// create istack out of the OS stack
+// 	LEAL	(-8192+104)(SP), AX	// TODO: 104?
+// 	MOVL	AX, 0(CX)	// 8(g) is stack limit (w 104b guard)
+// 	MOVL	SP, 4(CX)	// 12(g) is base
+// 	CALL	emptyfunc(SB)	// fault if stack check is wrong
+
+// 	// convention is D is always cleared
+// 	CLD
+
+// 	CALL	check(SB)
+
+// 	// saved argc, argv
+// 	MOVL	120(SP), AX
+// 	MOVL	AX, 0(SP)
+// 	MOVL	124(SP), AX
+// 	MOVL	AX, 4(SP)
+// 	CALL	args(SB)
+// 	CALL	osinit(SB)
+// 	CALL	schedinit(SB)
+
+// 	// create a new goroutine to start program
+// 	PUSHL	$mainstart(SB)	// entry
+// 	PUSHL	$8	// arg size
+// 	CALL	sys·newproc(SB)
+// 	POPL	AX
+// 	POPL	AX
+
+// 	// start this M
+// 	CALL	mstart(SB)
+
+	BL	main�main(SB)
+	MOVW	$99, R0
+	SWI	$0x00900001
+