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ca37758018
This patch rewrites the nmc93cxx emulation code. The primary aim of the rewrite is to fix the Qlogic 1080 BIOS v1.11 flashing feature (the card utilizes a 93C56 chip in 128x16 mode). This work is derived from the MAME serial EEPROM emulation code written by Aaron Giles and published under BSD-3-Clause license. https://github.com/mamedev/mame/blob/master/src/devices/machine/eepromser.cpp The code is modelled on the MAME code with the following differences: - Removed support for the ER5911 and MSM16911 EEPROM devices. - Removed support for the X24C44 NOVRAM device. - Removed support for the Seiko S-29X90 EEPROM devices. The 86Box changes: - The nmc93cxx code now also supports EEPROM devices in 8-bit mode. - Make the default_content parameter optional. - Make the nmc93cxx_eeprom_data function to return a const pointer.