sim: msp430: start a test framework

The current sim lacks any sort of tests.  Start a basic framework and
add a simple one to test the add insn.

sim/ChangeLog

@@ -1,3 +1,8 @@
+2014-03-10  Mike Frysinger  <vapier@gentoo.org>
+
+	* configure.tgt (msp430*-*-*): Set sim_testsuite to yes.
+	* configure: Regenerate.
+
 2014-01-06  Tom Tromey  <tromey@redhat.com>
 
 	* common/cgen-trace.c: Don't use old VA_* macros.

sim/configure

@@ -3775,6 +3775,7 @@ subdirs="$subdirs arm"
   subdirs="$subdirs msp430"
 
 
+       sim_testsuite=yes
        ;;
    rl78-*-*)
 

sim/configure.tgt

@@ -88,6 +88,7 @@ case "${target}" in
        ;;
    msp430*-*-*)
        SIM_ARCH(msp430)
+       sim_testsuite=yes
        ;;
    rl78-*-*)
        SIM_ARCH(rl78)

sim/testsuite/ChangeLog

@@ -1,3 +1,7 @@
+2014-03-10  Mike Frysinger  <vapier@gentoo.org>
+
+	* configure: Regenerate.
+
 2014-03-04  Mike Frysinger  <vapier@gentoo.org>
 
 	* common/bits-gen.c (main): Change to new style prototype.

sim/testsuite/configure

@@ -1895,6 +1895,7 @@ case "${target}" in
        ;;
    msp430*-*-*)
        sim_arch=msp430
+       sim_testsuite=yes
        ;;
    rl78-*-*)
        sim_arch=rl78

sim/testsuite/sim/msp430/ChangeLog

@@ -0,0 +1,3 @@
+2014-03-10  Mike Frysinger  <vapier@gentoo.org>
+
+	* add.s, allinsn.exp, testutils.inc: New files.

sim/testsuite/sim/msp430/add.s

@@ -0,0 +1,20 @@
+# check that basic add insn works.
+# mach: msp430
+
+.include "testutils.inc"
+
+	start
+
+	mov #10, r4
+	add #23, r4
+	cmp #33, r4
+	jne 1f
+
+	cmp #32, r4
+	jlo 1f
+
+	cmp #34, r4
+	jhs 1f
+
+	pass
+1:	fail

sim/testsuite/sim/msp430/allinsn.exp

@@ -0,0 +1,15 @@
+# msp430 simulator testsuite
+
+if [istarget msp430-*] {
+    # all machines
+    set all_machs "msp430"
+
+    foreach src [lsort [glob -nocomplain $srcdir/$subdir/*.s]] {
+	# If we're only testing specific files and this isn't one of them,
+	# skip it.
+	if ![runtest_file_p $runtests $src] {
+	    continue
+	}
+	run_sim_test $src $all_machs
+    }
+}

sim/testsuite/sim/msp430/testutils.inc

@@ -0,0 +1,70 @@
+# MACRO: start
+# All assembler tests should start with a call to "start"
+	.macro start
+	.text
+
+	# Skip over these inlined funcs.
+	jmp __start;
+
+	.global __pass
+	.type __pass, function
+__pass:
+	write 1, _passmsg, 5
+	exit 0
+
+	.global __fail
+	.type __fail, function
+__fail:
+	write 1, _failmsg, 5
+	exit 1
+
+	.data
+_passmsg:
+	.ascii "pass\n"
+	.align 4
+
+_failmsg:
+	.ascii "fail\n"
+	.align 4
+
+	.text
+	.global __start
+	.type __start, function
+__start:
+	.endm
+
+# MACRO: system_call
+# Make a libgloss/Linux system call
+	.macro system_call nr:req
+	call #(0x180|\nr);
+	.endm
+
+# MACRO: exit
+# Quit the current test
+	.macro exit rc:req
+	mov #\rc, r12
+	system_call 1
+	.endm
+
+# MACRO: pass
+# Write 'pass' to stdout via syscalls and quit;
+# meant for non-OS operating environments
+	.macro pass
+	jmp __pass;
+	.endm
+
+# MACRO: fail
+# Write 'fail' to stdout via syscalls and quit;
+# meant for non-OS operating environments
+	.macro fail
+	jmp __fail;
+	.endm
+
+# MACRO: write
+# Just like the write() C function; uses system calls
+	.macro write fd:req, buf:req, count:req
+	mov #\fd, r12;
+	mov #\buf, r13;
+	mov #\count, r14;
+	system_call 5
+	.endm