sim: testsuite: flatten tree

Now that all port tests live under testsuite/sim/*/, and none live
in testsuite/ directly, flatten the structure by moving all of the
dirs under testsuite/sim/ to testsuite/ directly.

We need to stop passing --tool to dejagnu so that it searches all
dirs and not just ones that start with "sim".  Since we have no
other dirs in this tree, and no plans to add any, should be fine.

sim/testsuite/mcore/testutils.inc

@@ -0,0 +1,52 @@
+# MACRO: exit
+	.macro exit nr
+	movi r2, \nr
+	# The exit utility function.
+	.byte 0x00
+	# The debug insn class.
+	.byte 0x50
+	.endm
+
+# MACRO: pass
+# Write 'pass' to stdout and quit
+	.macro pass
+	# Trap function 4: write().
+	movi r1, 4;
+	# Use stdout.
+	movi r2, 1;
+	# Point to the string.
+	lrw r3, 1f;
+	# Number of bytes to write.
+	movi r4, 5;
+	# Trigger OS trap.
+	trap 1;
+	exit 0
+	.data
+	1: .asciz "pass\n"
+	.endm
+
+# MACRO: fail
+# Write 'fail' to stdout and quit
+	.macro fail
+	# Trap function 4: write().
+	movi r1, 4;
+	# Use stdout.
+	movi r2, 1;
+	# Point to the string.
+	lrw r3, 1f;
+	# Number of bytes to write.
+	movi r4, 5;
+	# Trigger OS trap.
+	trap 1;
+	exit 1
+	.data
+	1: .asciz "fail\n"
+	.endm
+
+# MACRO: start
+# All assembler tests should start with a call to "start"
+	.macro start
+	.text
+.global _start
+_start:
+	.endm