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Add support for weird Everex AMI 386-BIOS with EISA

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RichardG867
2022-03-30 20:31:41 -03:00
parent c66254d159
commit 1230b2c97b
1 changed files with 11 additions and 7 deletions
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18
biostools/analyzers.py
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@@ -331,11 +331,14 @@ class AMIAnalyzer(Analyzer):
# Weird TGem identifier (TriGem 486-BIOS)
self._precolor_block_pattern = re.compile(b'''\(C\)(?:[0-9]{4}(?:AMI,404-263-8181|TGem-HCS,PSC,JGS)|( Access Methods Inc\.))''')
# "Date:-" might not have a space after it (Intel AMI)
self._precolor_date_pattern = re.compile(b'''(?:(?: Date:- ?|AMI- )[0-9]{2}/[0-9]{2}/[0-9]{2}|DDaattee(?:::| )--(?: )?([0-9])\\1([0-9])\\2//([0-9])\\3([0-9])\\4//([0-9])\\5([0-9])\\6)''')
# "\xFF\xFF\xFF\xFFFLASH-" (Everex EISA 386-BIOS)
self._precolor_date_pattern = re.compile(b'''(?:(?: Date:- ?|AMI- )[0-9]{2}/[0-9]{2}/[0-9]{2}|DDaattee(?:::| )--(?: )?([0-9])\\1([0-9])\\2//([0-9])\\3([0-9])\\4//([0-9])\\5([0-9])\\6|\\xFF{4}FLASH-[0-9]{6})''')
# Variable gap between sync bytes (first bytes of the ROM) and the date.
self._precolor_core_date_pattern = re.compile(b'''\\xAA\\x55[\\x00-\\xFF]{1,16}([0-9]{2}/[0-9]{2}/[0-9]{2})''')
# Decoded: "\xFE([^-]{4}-(?:[^-]{4}-)?[^-]{6})"
self._precolor_string_pattern = re.compile(b'''\\xFE([\\x00-\\x95\\x97-\\xFF]{4}\\x96(?:[\\x00-\\x95\\x97-\\xFF]{4}\\x96)?[\\x00-\\x95\\x97-\\xFF]{6})''')
# "\xFF\xFF\xFF\xFFFLASH-" (Everex EISA 386-BIOS)
self._precolor_core_date_pattern = re.compile(b'''\\xAA\\x55[\\x00-\\xFF]{1,16}([0-9]{2}/[0-9]{2}/[0-9]{2})|\\xFF{4}FLASH-([0-9]{2})([0-9]{2})([0-9]{2})''')
# Decoded: "\xFE([^-]{4}-(?:[^-]{4}-)?[^-]{6}|Ref\. [\x00-\xFF]{1,64})"
# "Ref. " (Everex EISA 386-BIOS) - let the code handle termination
self._precolor_string_pattern = re.compile(b'''\\xFE([\\x00-\\x95\\x97-\\xFF]{4}\\x96(?:[\\x00-\\x95\\x97-\\xFF]{4}\\x96)?[\\x00-\\x95\\x97-\\xFF]{6}|\\x6D\\xD4\\xCC\\x8E\\xFE[\\x00-\\xFF]{1,64})''')
self._precolor_signon_pattern = re.compile(b'''BIOS \(C\).*(?:AMI|American Megatrends Inc), for ([\\x0D\\x0A\\x20-\\x7E]+)''')
# Decoded: "\(C\)AMI, \(([^\)]{11})\)"
self._8088_string_pattern = re.compile(b'''\\xEC\\x5F\\x6C\\x60\\x5A\\x5C\\xEA\\xF0\\xEC([\\x00-\\x6B\\x6D-\\xFF]{11})\\x6C''')
@@ -415,7 +418,7 @@ class AMIAnalyzer(Analyzer):
match = self._date_pattern.search(file_data)
if match:
# Extract date as the version.
self.version = match.group(1).decode('cp437', 'ignore')
self.version = (match.group(1) or (match.group(2) + b'/' + match.group(3) + b'/' + match.group(4))).decode('cp437', 'ignore')
date_start = match.start(0)
# Check pre-Color identification block.
@@ -441,8 +444,9 @@ class AMIAnalyzer(Analyzer):
# Note: K without preceding - is possible (Atari PC5)
if self.string[-1:] == 'K':
self.string = self.string[:-1]
if self.string[-1:] == '-':
self.string = self.string[:-1]
if self.string[-1:] == '-':
self.string = self.string[:-1]
else:
# Fallback if we can't find the encoded string.
self.string = '????'