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MetalliC 2020-02-25 17:30:40 +02:00
parent d24abe007e
commit d04d3df50e
1 changed files with 2 additions and 1 deletions
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src/mame/drivers/naomi.cpp
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@ -3564,7 +3564,8 @@ Region byte encoding is as follows:
First half is BIOS, second half is game settings and is blanked/reprogrammed by the BIOS if game cartridge exchange was detected
area 0x1A000-0x1BFFF is write protected and contain 12 bytes of unit-specific unique information (probably serial number, manufacture date, etc),
2 dumps included for reference
fpr-24363.ic48 - later Sega's boot ROM, have removed Sammy logo, only last 1/4 used (2 high address bits tied to Vcc).
fpr-24363.ic48 - BOOT ROM from Sega 837-14624R PCB, in comparison with Sammy's BOOT contain minor code change to keep video output disabled during Sammy logo display routine.
Only last 128KB of whole 512KB ROM actually used (2 high address pins tied to Vcc).
*/
#define AW_BIOS \
ROM_REGION64_LE( 0x200000, "awflash", 0) \