From 8bd8dd6ce07fb8e247f651b3c61c94bb1f00895a Mon Sep 17 00:00:00 2001
From: Väinö Kauppila <vaino@vke.fi>
Date: Sun, 19 Apr 2026 00:33:08 +0300
Subject: starting files and example programs

---
 PIC/common.vhd | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 PIC/common.vhd

(limited to 'PIC/common.vhd')

diff --git a/PIC/common.vhd b/PIC/common.vhd
new file mode 100644
index 0000000..c986ec5
--- /dev/null
+++ b/PIC/common.vhd
@@ -0,0 +1,10 @@
+package alu_types is
+  type alu_op is (ADDWF, ANDWF, ADDLW, ANDLW, BCF, BTFSC,
+    BSF, BTFSS, CLRF, CLRW, COMF, DECF,
+    DECFSZ, INCF, INCFSZ, IORLW, MOVF, MOVWF, CALL,
+    GOTO, MOVLW, RETLW, RETUR, IORWF, NOP,
+    RLF, RRF, SUBLW, SUBWF, SWAPF, XORLW, XORWF);
+
+  -- Status register bits: Z=2, DC=1, C=0
+  type alu_flag is (FLAG_Z, FLAG_DC, FLAG_C);
+end package;
-- 
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