shithub: pokecrystal

Info  •  Files  •  Log  •  Branches

update gbz80disasm for handling known fall-throughs

When disassembling a group of functions, sometimes there are other
functions known in advance. By passing in a list called stop_at to
gbz80disasm, it is possible to prevent disassembled asm from running on
for longer than necessary.

--- a/extras/gbz80disasm.py

+++ b/extras/gbz80disasm.py

@@ -592,7 +592,7 @@

     # why using a random value when you can use the address?

     return ".ASM_" + hex(address)[2:]

-def output_bank_opcodes(original_offset, max_byte_count=0x4000, include_last_address=True, debug = False):

+def output_bank_opcodes(original_offset, max_byte_count=0x4000, include_last_address=True, stop_at=[], debug = False):

     #fs = current_address

     #b = bank_byte

     #in = input_data  -- rom

@@ -601,6 +601,10 @@

     #ad = end_address

     #a, oa = current_byte_number

+    # stop_at can be used to supply a list of addresses to not disassemble

+    # over. This is useful if you know in advance that there are a lot of

+    # fall-throughs.

+

     load_labels()

     load_rom()

@@ -622,6 +626,7 @@

     byte_labels = {}

+    first_loop = True

     output = ""

     keep_reading = True

     while offset <= end_address and keep_reading:

@@ -629,6 +634,11 @@

         is_data = False

         maybe_byte = current_byte

+        # stop at any address

+        if not first_loop and offset in stop_at:

+            keep_reading = False

+            break

+

         #first check if this byte already has a label

         #if it does, use the label

         #if not, generate a new label

@@ -815,6 +825,8 @@

         #these two are done prior

         #offset += 1

         #current_byte_number += 1

+

+        first_loop = False

     #clean up unused labels

     for label_line in byte_labels.keys():