sim: iq2000: add a basic testsuite

diff --git a/sim/testsuite/sim/iq2000/ChangeLog b/sim/testsuite/sim/iq2000/ChangeLog
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+2015-04-05  Mike Frysinger  <vapier@gentoo.org>
+
+       * pass.s, allinsn.exp, testutils.inc: New files.

diff --git a/sim/testsuite/sim/iq2000/allinsn.exp b/sim/testsuite/sim/iq2000/allinsn.exp
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+++ b/sim/testsuite/sim/iq2000/allinsn.exp
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+# iq2000 simulator testsuite
+
+if [istarget iq2000-*] {
+    # all machines
+    set all_machs "iq2000"
+
+    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
+    }
+}

diff --git a/sim/testsuite/sim/iq2000/pass.s b/sim/testsuite/sim/iq2000/pass.s
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+# check that the sim doesn't die immediately.
+# mach: iq2000
+
+.include "testutils.inc"
+
+       start
+       pass

diff --git a/sim/testsuite/sim/iq2000/testutils.inc b/sim/testsuite/sim/iq2000/testutils.inc
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+++ b/sim/testsuite/sim/iq2000/testutils.inc
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+# MACRO: exit
+       .macro exit nr
+       ori r5, r0, \nr;
+       # Trap function 1: exit().
+       ori r4, r0, 1;
+       syscall;
+       .endm
+
+# MACRO: pass
+# Write 'pass' to stdout and quit
+       .macro pass
+       # Trap function 5: write().
+       ori r4, r0, 5;
+       # Use stdout.
+       ori r5, r0, 1;
+       # Point to the string.
+       lui r6, %hi(1f);
+       ori r6, r6, %lo(1f);
+       # Number of bytes to write.
+       ori r7, r0, 5;
+       # Trigger OS trap.
+       syscall;
+       exit 0
+       .data
+       1: .asciz "pass\n"
+       .endm
+
+# MACRO: fail
+# Write 'fail' to stdout and quit
+       .macro fail
+       # Trap function 5: write().
+       ori r4, r0, 5;
+       # Use stdout.
+       ori r5, r0, 1;
+       # Point to the string.
+       lui r6, %hi(1f);
+       ori r6, r6, %lo(1f);
+       # Number of bytes to write.
+       ori r7, r0, 5;
+       # Trigger OS trap.
+       syscall;
+       exit 0
+       .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