1 files changed, 154 insertions, 0 deletions
diff --git a/source/notes/pic-mcu/pickit2/pk2cmd-stuff/pic16.py b/source/notes/pic-mcu/pickit2/pk2cmd-stuff/pic16.py
new file mode 100644
index 0000000..e543cda
--- /dev/null
+++ b/source/notes/pic-mcu/pickit2/pk2cmd-stuff/pic16.py
@@ -0,0 +1,154 @@
+def render(instr):
+    if 'op' in instr:
+        return "{} {}".format(instr['mnemonic'], instr['op'])
+    else:
+        return instr['mnemonic']
+
+def disassemble(blob, offset):
+    instr = {}
+    instr['length'] = 1
+    instrbytes = blob[offset:offset + 2]
+#    instrbytes.reverse()
+    print("Decoding {}{}...".format(hex(instrbytes[0])[2:], hex(instrbytes[1])[2:]))
+
+    if instrbytes[0] == 0x00:
+        print(hex(instrbytes[1]))
+        # there's a few instructions here...
+        if instrbytes[1] == 0xff:
+            instr['mnemonic'] = 'reset'
+        else:
+            instr['mnemonic'] = [
+                'nop',
+                'BAD',
+                'BAD',
+                'sleep',
+                'clrwdt',
+                'push',
+                'pop',
+                'daw',
+                'tblrd*',
+                'tblrd*+',
+                'tblrd*-',
+                'tblrd+*',
+                'tblwr*',
+                'tblwr*+',
+                'tblwr*-',
+                'tblwr+*',
+                'retfie',
+                'retfie fast',
+                'return',
+                'return fast',
+                'callw*'][instrbytes[1]]
+    if instrbytes[0] == 0x01:
+        if instrbytes[1] > 0xf:
+            instr['mnemonic'] = 'BAD'
+        else:
+            instr['mnemonic'] = 'movlb'
+            instr['op'] = "#" + str(instrbytes[1])
+    elif instrbytes[0] == 0x02 or instrbytes[0] == 0x03:
+        instr['mnemonic'] = 'mulwf'
+        instr['op'] = 'TODO'
+    elif instrbytes[0] == 0x04 or instrbytes[0] == 0x05 or instrbytes[0] == 0x06 or instrbytes[0] == 0x07:
+        instr['mnemonic'] = 'decf'
+        instr['op'] = 'TODO'
+    elif instrbytes[0] == 0x08:
+        instr['mnemonic'] = 'sublw'
+        instr['op'] = '#' + hex(instrbytes[1])
+    elif instrbytes[0] == 0x09:
+        instr['mnemonic'] = 'iorlw'
+        instr['op'] = '#' + hex(instrbytes[1])
+    elif instrbytes[0] == 0x0a:
+        instr['mnemonic'] = 'xorlw'
+        instr['op'] = '#' + hex(instrbytes[1])
+    elif instrbytes[0] == 0x0b:
+        instr['mnemonic'] = 'andlw'
+        instr['op'] = '#' + hex(instrbytes[1])
+    elif instrbytes[0] == 0x0c:
+        instr['mnemonic'] = 'retlw'
+        instr['op'] = '#' + hex(instrbytes[1])
+    elif instrbytes[0] == 0x0d:
+        instr['mnemonic'] = 'mullw'
+        instr['op'] = '#' + hex(instrbytes[1])
+    elif instrbytes[0] == 0x0e:
+        instr['mnemonic'] = 'movlw'
+        instr['op'] = '#' + hex(instrbytes[1])
+    elif instrbytes[0] == 0x0f:
+        instr['mnemonic'] = 'addlw'
+        instr['op'] = '#' + hex(instrbytes[1])
+    elif instrbytes[0] >= 0x20 and instrbytes[0] <= 0x5f:
+        mnemonicSel = instrbytes[0] >> 2
+        instr['mnemonic'] = [
+            'iorwf',
+            'andwf',
+            'xorwf',
+            'comf',
+            'addwfc',
+            'addwf',
+            'incf',
+            'decfsz',
+            'rrcf',
+            'rlcf',
+            'swapf',
+            'incfsz',
+            'rrncf',
+            'rlncf',
+            'infsnz',
+            'dcfsnz',
+            'movf',
+            'subwfb',
+            'subwfb',
+            'subwf'
+        ][mnemonicSel]
+        instr['op'] = 'TODO'
+    elif instrbytes[0] >= 0x60 and instrbytes[0] < 0x70:
+        mnemonicSel = instrbytes[0] >> 1
+        instr['mnemonic'] = [
+            'cpfslt',
+            'cpfseq',
+            'cpfsgt',
+            'tstfsz',
+            'setf',
+            'clrf',
+            'negf',
+            'movwf'
+        ][mnemonicSel]
+        instr['op'] = 'TODO'
+    elif instrbytes[0] >= 0x70 and instrbytes[0] < 0xc0:
+        mnemonicSel = instrbytes[0] >> 4
+        instr['mnemonic'] = [
+            'BAD', 'BAD', 'BAD', 'BAD', 'BAD', 'BAD', 'BAD',
+            'BTG',
+            'BSF',
+            'BCF',
+            'BTFSS',
+            'BTFSC'
+        ][mnemonicSel]
+        instr['op'] = 'TODO'
+    elif instrbytes[0] >= 0xc0 and instrbytes[0] < 0xd0:
+        instr['mnemonic'] = 'MOVFF'
+        instr['op'] = 'TODO'
+    elif instrbytes[0] >= 0xd0 and instrbytes[0] < 0xd8:
+        instr['mnemonic'] = 'BRA'
+        instr['op'] = 'TODO'
+    elif instrbytes[0] >= 0xd8 and instrbytes[0] < 0xe0:
+        instr['mnemonic'] = 'RCALL'
+        instr['op'] = 'TODO'
+    elif instrbytes[0] >= 0xf0 and instrbytes[0] <= 0xff:
+        instr['mnemonic'] = 'MOVFF'
+        instr['op'] = 'TODO'
+    elif instrbytes[0] == 0xec or instrbytes[0] == 0xed:
+        instr['mnemonic'] = 'CALL'
+        instr['op'] = 'TODO'
+        instr['length'] = 2
+    elif instrbytes[0] == 0xee:
+        instr['mnemonic'] = 'LFSR'
+        instr['op'] = 'TODO'
+        instr['length'] = 2
+    elif instrbytes[0] == 0xef:
+        instr['mnemonic'] = 'GOTO'
+        instr['op'] = 'TODO'
+        instr['length'] = 2
+    else:
+        instr['mnemonic'] = 'TODO'
+
+    return (offset + instr['length'] * 2, instr)