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-rwxr-xr-xtests/stack_machine_sub/instructions.s.tcl24
l---------tests/stack_machine_sub/test.v1
-rw-r--r--tests/stack_machine_sub/words_to_verify.mem6
3 files changed, 31 insertions, 0 deletions
diff --git a/tests/stack_machine_sub/instructions.s.tcl b/tests/stack_machine_sub/instructions.s.tcl
new file mode 100755
index 0000000..e8485ee
--- /dev/null
+++ b/tests/stack_machine_sub/instructions.s.tcl
@@ -0,0 +1,24 @@
+#!/usr/bin/env tclsh
+
+source tclasm.tcl
+
+### store 2 values to memory, load them back,
+### substract them and store the result
+
+set_sp 0
+
+const 68996288
+store h1EEE0
+const 540904416
+store h1EEE4
+
+const 8
+
+load h1EEE0
+load h1EEE4
+# substracting 540904416 from 68996288 should yield -471908128
+sub
+# will write to h1EEE0 + 8 = h1EEE8
+store+ h1EEE0
+
+halt
diff --git a/tests/stack_machine_sub/test.v b/tests/stack_machine_sub/test.v
new file mode 120000
index 0000000..f5b6a59
--- /dev/null
+++ b/tests/stack_machine_sub/test.v
@@ -0,0 +1 @@
+../stack_machine_store/test.v \ No newline at end of file
diff --git a/tests/stack_machine_sub/words_to_verify.mem b/tests/stack_machine_sub/words_to_verify.mem
new file mode 100644
index 0000000..10c15db
--- /dev/null
+++ b/tests/stack_machine_sub/words_to_verify.mem
@@ -0,0 +1,6 @@
+// address value
+ 1EEE0 41CCCC0 // 68996288 in hex is 41CCCC0
+
+ 1EEE4 203D8BE0 // 540904416 in hex is 203D8BE0
+
+ 1EEE8 E3DF40E0 // -471908128 in hex is E3DF40E0