From dd82d11edb75d24fcf6abfec72fbdcbab52a66a3 Mon Sep 17 00:00:00 2001 From: Couriersud Date: Tue, 25 Dec 2007 22:21:57 +0000 Subject: [PATCH] - added some comments relating to Z80 DMA chip (dkong3) --- src/mame/drivers/dkong.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/src/mame/drivers/dkong.c b/src/mame/drivers/dkong.c index d54ee01d393..0437a86028b 100644 --- a/src/mame/drivers/dkong.c +++ b/src/mame/drivers/dkong.c @@ -738,6 +738,7 @@ static ADDRESS_MAP_START( dkong3_map, ADDRESS_SPACE_PROGRAM, 8 ) AM_RANGE(0x6900, 0x6a7f) AM_RAM AM_BASE(&spriteram) AM_SIZE(&spriteram_size) /* sprite set 1 */ AM_RANGE(0x6a80, 0x6cff) AM_RAM /* 0x6b00: sprite set 2 */ AM_RANGE(0x6d00, 0x6fff) AM_RAM /* ???? */ + AM_RANGE(0x7000, 0x73ff) AM_RAM /* Actual sprite ram location ... waiting for missing z80 dma */ AM_RANGE(0x7400, 0x77ff) AM_READWRITE(MRA8_RAM, dkong_videoram_w) AM_BASE(&videoram) AM_RANGE(0x7c00, 0x7c00) AM_READ_PORT("IN0") AM_WRITE(soundlatch_w) AM_RANGE(0x7c80, 0x7c80) AM_READ_PORT("IN1") AM_WRITE(soundlatch2_w) @@ -755,7 +756,7 @@ ADDRESS_MAP_END static ADDRESS_MAP_START( dkong3_io_map, ADDRESS_SPACE_IO, 8 ) ADDRESS_MAP_FLAGS( AMEF_ABITS(8) ) - AM_RANGE(0x00, 0x00) AM_WRITE(MWA8_NOP) /* ??? */ + AM_RANGE(0x00, 0x00) AM_WRITE(MWA8_NOP) /* dma controller */ ADDRESS_MAP_END static ADDRESS_MAP_START( dkongjr_map, ADDRESS_SPACE_PROGRAM, 8 )