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reorganised the memory map a bit & added some notes (nw)

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This commit is contained in:
smf- 2013-04-06 12:57:34 +00:00
parent f85c6fdf4f
commit 45148f5143
1 changed files with 18 additions and 3 deletions
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21
src/mess/drivers/clcd.c
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@ -6,6 +6,20 @@
G65SC51
M65C22P2 x 2
random notes:
irq handler
fa80
fc00
fa00: make sure monitor is banked in at c000
fb00/fa80 lda/sta called from ram/fixed?
fb00/fa00 lda/sta called from rom/fixed?
fa80/fa00 lda called from rom/fixed?
****************************************************************************/
@ -236,9 +250,13 @@ private:
};
static ADDRESS_MAP_START( clcd_mem, AS_PROGRAM, 8, clcd_state )
AM_RANGE(0x0000, 0x3fff) AM_RAM AM_SHARE("ram")
AM_RANGE(0x4000, 0x7fff) AM_ROMBANK("bankedroms") AM_WRITE(ramwrite_w)
AM_RANGE(0x8000, 0xf6ff) AM_ROM AM_REGION("maincpu", 0)
AM_RANGE(0xf800, 0xf80f) AM_DEVREADWRITE("via0", via6522_device, read, write)
AM_RANGE(0xf880, 0xf88f) AM_DEVREADWRITE("via1", via6522_device, read, write)
AM_RANGE(0xf980, 0xf981) AM_DEVREADWRITE("acia", mos6551_device, read, write)
AM_RANGE(0xfa00, 0xffff) AM_ROM AM_REGION("maincpu", 0x7a00)
AM_RANGE(0xfa00, 0xfa00) AM_WRITE(fa00_w)
AM_RANGE(0xfa80, 0xfa80) AM_WRITE(fa80_w)
AM_RANGE(0xfb00, 0xfb00) AM_WRITE(fb00_w)
@ -251,9 +269,6 @@ static ADDRESS_MAP_START( clcd_mem, AS_PROGRAM, 8, clcd_state )
AM_RANGE(0xfe80, 0xfe80) AM_WRITE(fe80_w)
AM_RANGE(0xff00, 0xff00) AM_WRITE(rombank_w)
AM_RANGE(0xff80, 0xff83) AM_WRITE(ff80_w)
AM_RANGE(0x0000, 0x3fff) AM_RAM AM_SHARE("ram")
AM_RANGE(0x4000, 0x7fff) AM_ROMBANK("bankedroms") AM_WRITE(ramwrite_w)
AM_RANGE(0x8000, 0xffff) AM_ROM AM_REGION("maincpu", 0)
ADDRESS_MAP_END
/* Input ports */