From ba4d97ddc2133c905e668c2f916cf3b14be4e35d Mon Sep 17 00:00:00 2001
From: Wojciech Kosior <kwojtus@protonmail.com>
Date: Sat, 5 Sep 2020 17:09:16 +0200
Subject: add sub instruction together with bench

---
 tests/stack_machine_sub/instructions.s.tcl | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100755 tests/stack_machine_sub/instructions.s.tcl

(limited to 'tests/stack_machine_sub/instructions.s.tcl')

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
-- 
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