diff options
Diffstat (limited to 'src')
-rw-r--r-- | src/mame/drivers/rainbow.cpp | 22 |
1 files changed, 9 insertions, 13 deletions
diff --git a/src/mame/drivers/rainbow.cpp b/src/mame/drivers/rainbow.cpp index fd523a47e8e..c9bbafeea8b 100644 --- a/src/mame/drivers/rainbow.cpp +++ b/src/mame/drivers/rainbow.cpp @@ -246,22 +246,18 @@ W17 pulls J1 serial port pin 1 to GND when set (chassis to logical GND). #define OLD_RAM_BOARD_PRESENT #ifdef ASSUME_MODEL_A_HARDWARE -// Define standard and maximum RAM sizes (A model): -#define MOTHERBOARD_RAM 0x0ffff // 64 K base RAM (100-A) -#define END_OF_RAM 0xcffff // Very last byte (theretical; on 100-A) DO NOT CHANGE. - + // Define standard and maximum RAM sizes (A model): + #define MOTHERBOARD_RAM 0x0ffff // 64 K base RAM (100-A) + #define END_OF_RAM 0xcffff // Very last byte (theretical; on 100-A) DO NOT CHANGE. #else + // DEC-100-B probes until a 'flaky' area is found (BOOT ROM around F400:0E04). + // It is no longer possible to key in the RAM size from within the 100-B BIOS. + #define MOTHERBOARD_RAM 0x1ffff // 128 K base RAM (100-B) + #define END_OF_RAM 0xdffff // very last byte (100-B theoretical max.) DO NOT CHANGE. -// DEC-100-B probes until a 'flaky' area is found (BOOT ROM around F400:0E04). -// It is no longer possible to key in the RAM size from within the 100-B BIOS. -#define MOTHERBOARD_RAM 0x1ffff // 128 K base RAM (100-B) -#define END_OF_RAM 0xdffff // very last byte (100-B theoretical max.) DO NOT CHANGE. - -#define WORKAROUND_RAINBOW_B // work around DRIVE ERROR (tested on 100-B ROM only) - -// Suitable Solutions ClikClok (one of the more compatible battery backed real time clocks) -#define RTC_ENABLED + #define WORKAROUND_RAINBOW_B // work around DRIVE ERROR (tested on 100-B ROM only) + #define RTC_ENABLED #endif // ---------------------------------------------------------------------------------------------- |