From 6295bacd000e00d7c569fdc64697a29561f1d2b1 Mon Sep 17 00:00:00 2001
From: Wojciech Kosior <kwojtus@protonmail.com>
Date: Sat, 5 Sep 2020 14:47:13 +0200
Subject: add tclasm multiinstructions (instructions, that possibly translate
 to more than one)

---
 .../instructions.s.tcl                             | 54 ++++++++++++++++++++++
 .../test.v                                         |  1 +
 .../words_to_verify.mem                            | 12 +++++
 3 files changed, 67 insertions(+)
 create mode 100755 tests/stack_machine_multiinstructions_load_store/instructions.s.tcl
 create mode 120000 tests/stack_machine_multiinstructions_load_store/test.v
 create mode 100644 tests/stack_machine_multiinstructions_load_store/words_to_verify.mem

(limited to 'tests')

diff --git a/tests/stack_machine_multiinstructions_load_store/instructions.s.tcl b/tests/stack_machine_multiinstructions_load_store/instructions.s.tcl
new file mode 100755
index 0000000..bd16f8a
--- /dev/null
+++ b/tests/stack_machine_multiinstructions_load_store/instructions.s.tcl
@@ -0,0 +1,54 @@
+#!/usr/bin/env tclsh
+
+source tclasm.tcl
+
+### set stack to h1FFE00, store 4 numbers (h11223344, h55667788, h8899AABB and
+### hCCDDEEFF) at addresses h00002E, h00003E, h00004E and h00005E and load them
+### back to stack (only 2 will really get written to stack's memory, other 2
+### will remain in r0 and r1). Then, write them to h00F0F0, h08F0F0, h10F0F0 and
+### h18F0F0.
+### At the and use operand-addressing to load back value h55667788 from h00003E
+### (expressed as h000040 in im + (-2) in operand) and store it to h1FFFCD
+### (expressed as h1F0F0D in im + h00F0C0 in operand).
+
+## set up stack
+set_sp 0
+
+## get number h11223344 into r1, and store it - repeat for other 3 numbers;
+const h11223344
+store h00002E
+
+const h55667788
+store h00003E
+
+const h8899AABB
+store h00004E
+
+const hCCDDEEFF
+store h00005E
+
+## get numbers back on stack
+load h00002E
+load h00003E
+load h00004E
+load h00005E
+
+## store copies to new locations
+store h18F0F0
+store h10F0F0
+store h08F0F0
+store h00F0F0
+
+## prepare operand for later store operation
+const h00F0C0
+
+## use operand addressing to load back value from h000018
+const -2
+load+ h000040
+
+## use operand addressing to trove value to h1FFFE2 = h1FFFC0 + h000022
+# immediate value gets sign-extended here!
+store+ h1F0F0D
+
+## finish test
+halt
diff --git a/tests/stack_machine_multiinstructions_load_store/test.v b/tests/stack_machine_multiinstructions_load_store/test.v
new file mode 120000
index 0000000..f5b6a59
--- /dev/null
+++ b/tests/stack_machine_multiinstructions_load_store/test.v
@@ -0,0 +1 @@
+../stack_machine_store/test.v
\ No newline at end of file
diff --git a/tests/stack_machine_multiinstructions_load_store/words_to_verify.mem b/tests/stack_machine_multiinstructions_load_store/words_to_verify.mem
new file mode 100644
index 0000000..14b6f32
--- /dev/null
+++ b/tests/stack_machine_multiinstructions_load_store/words_to_verify.mem
@@ -0,0 +1,12 @@
+// address  value
+   2E       11223344
+   3E	    55667788
+   4E	    8899AABB
+   5E	    CCDDEEFF
+
+   00F0F0   11223344
+   08F0F0   55667788
+   10F0F0   8899AABB
+   18F0F0   CCDDEEFF
+
+   1FFFCD   55667788
-- 
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