52 lines
1.2 KiB
Python
Executable file
52 lines
1.2 KiB
Python
Executable file
#!/usr/bin/env nix-shell
|
|
#! nix-shell -i python3 -p python3
|
|
#
|
|
# Usage: deptr.py mapfile file.s
|
|
# Replaces pointers with symbol names
|
|
|
|
import os
|
|
import re
|
|
import sys
|
|
|
|
substitutions = (
|
|
('<', '$$0'),
|
|
('>', '$$1'),
|
|
('@', '$$2'),
|
|
('\\', '$$3'),
|
|
(',', '$$4'),
|
|
('-', '$$5')
|
|
)
|
|
|
|
def format(symbol):
|
|
for sub in substitutions:
|
|
symbol = symbol.replace(sub[0], sub[1])
|
|
|
|
return symbol
|
|
|
|
if len(sys.argv) != 3:
|
|
print('Usage: %s MAP_FILE ASM_FILE' % sys.argv[0])
|
|
exit()
|
|
|
|
labels = set()
|
|
labelNames = {}
|
|
|
|
with open(sys.argv[1], "r") as mapfile:
|
|
for line in mapfile:
|
|
match = re.match(' [0-9a-f]{8} [0-9a-f]{6} ([0-9a-f]{8}) [0-9a-f]{8} [ 0-9][0-9] ([^ 0-9.][^ ]*)', line)
|
|
if match:
|
|
addr = int(match.group(1), 16)
|
|
name = format(match.group(2))
|
|
labels.add(addr)
|
|
labelNames[addr] = name
|
|
|
|
with open(sys.argv[2], 'rt') as f:
|
|
for line in f.readlines():
|
|
line = line.rstrip('\n')
|
|
# Section directive
|
|
m = re.match(r'\s*.4byte (0x80[0-5][0-9A-F]{5})', line)
|
|
if m:
|
|
ptr = int(m.groups()[0], 16)
|
|
if ptr in labelNames:
|
|
print(f"\t.byte4 {labelNames[ptr]}")
|
|
continue
|
|
print(line)
|