mirror of
https://github.com/MiSTer-devel/MultiComp_MiSTer.git
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f219ef5c22
- add warm/cold reset option for the 6809 - add tools and docs to build 6809 interpreter - revert the basMon files
54 lines
1.9 KiB
Python
54 lines
1.9 KiB
Python
#!/usr/bin/env python3
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# Direct port of the original Perl script
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# Usage: python hex_addr_remap.py <hex-offset> foo.hex > foo2.hex
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import sys
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import re
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# Check arguments
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if len(sys.argv) != 3:
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print("Usage: python hex_addr_remap.py <hex-offset> <input-file>")
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sys.exit(1)
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offset = int(sys.argv[1], 16) # Convert hex string to integer
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try:
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with open(sys.argv[2], 'r') as infile:
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for line in infile:
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# Match the same pattern as the Perl script
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match = re.match(r'(\:)([0-9A-F][0-9A-F])([0-9A-F]{4})([0-9A-F][0-9A-F])(\w+)', line.upper())
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if match:
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# Extract components exactly as in Perl
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len_hex = int(match.group(2), 16) # 2 digits
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adr = int(match.group(3), 16) # 4 digits
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typ = int(match.group(4), 16) # 2 digits
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dat = match.group(5) # data and checksum
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char = len(dat)
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# Adjust address
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adr = 0xffff & (adr - offset)
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# Calculate sum as in original
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sum_val = len_hex + (adr & 0xff) + ((adr>>8) & 0xff) + typ
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# Build output string
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output = f":{len_hex:02X}{adr:04X}{typ:02X}"
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# Process data bytes
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for i in range(0, char-2, 2):
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hex_val = dat[i:i+2]
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output += f"{int(hex_val, 16):02X}"
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sum_val = sum_val + int(hex_val, 16)
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# Calculate and append new checksum
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new_csum = ((sum_val ^ 0xff) + 1) & 0xff
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output += f"{new_csum:02X}"
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# Print with single \r
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sys.stdout.write(output + "\r")
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# Add EOF record at the end
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sys.stdout.write(":00000001FF\r")
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except FileNotFoundError:
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print(f"Could not open input file {sys.argv[2]}")
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sys.exit(1) |