mirror of
https://github.com/robmcmullen/atrcopy.git
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56 lines
1.8 KiB
Python
56 lines
1.8 KiB
Python
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import numpy as np
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from errors import *
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from ataridos import AtariDosDirent, XexSegment
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from diskimages import DiskImageBase
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class KBootDirent(AtariDosDirent):
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def __init__(self, image):
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AtariDosDirent.__init__(self, image)
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self.in_use = True
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self.starting_sector = 4
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self.filename = image.filename
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if not self.filename:
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self.filename = "KBOOT"
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if self.filename == self.filename.upper():
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self.ext = "XEX"
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else:
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self.ext = "xex"
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start, size = image.header.get_pos(4)
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i = image.header.atr_header_offset + 9
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count = image.bytes[i] + 256 * image.bytes[i+1] + 256 * 256 *image.bytes[i + 2]
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if start + count > image.size or start + count < image.size - 128:
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self.is_sane = False
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else:
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self.exe_size = count
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self.exe_start = start
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self.num_sectors = count / 128 + 1
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def parse_raw_dirent(self, image, bytes):
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pass
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def process_raw_sector(self, image, raw):
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num_bytes = np.alen(raw)
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return raw[0:num_bytes], num_bytes
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class KBootImage(DiskImageBase):
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def __str__(self):
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return "%s KBoot Format: %d byte executable" % (self.header, self.files[0].exe_size)
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def check_sane(self):
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if not self.all_sane:
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raise InvalidDiskImage("Doesn't seem to be KBoot header")
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def get_directory(self):
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dirent = KBootDirent(self)
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if not dirent.is_sane:
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self.all_sane = False
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self.files = [dirent]
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def get_file_segment(self, dirent):
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start = dirent.exe_start
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end = dirent.exe_start + dirent.exe_size
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return XexSegment(self.bytes[start:end], self.style[start:end], 0, 0, 0, start, name="KBoot Executable")
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