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Xerox Notetaker: Correct CPU Clock speed, and map at least some of RAM [Lord Nightmare]

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Lord-Nightmare 2016-02-08 01:32:59 -05:00
parent 0901dacf2f
commit 1edb7e7941
1 changed files with 2 additions and 2 deletions
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4
src/mame/drivers/notetaker.cpp
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@ -47,7 +47,7 @@ public:
static ADDRESS_MAP_START(notetaker_mem, AS_PROGRAM, 16, notetaker_state)
// AM_RANGE(0x00000, 0x01fff) AM_RAM
AM_RANGE(0x00000, 0x00fff) AM_ROM AM_REGION("maincpu", 0xFF000) // I think this copy of rom is actually banked via io reg 0x20, there is ram which lives behind here?
// ram lives here?
AM_RANGE(0x01000, 0x01fff) AM_RAM // ram lives here, or at least some of it does for the stack.
AM_RANGE(0xff000, 0xfffff) AM_ROM // is this banked too?
ADDRESS_MAP_END
@ -72,7 +72,7 @@ INPUT_PORTS_END
static MACHINE_CONFIG_START( notetakr, notetaker_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", I8086, XTAL_14_7456MHz/3) /* unknown crystal and divider */
MCFG_CPU_ADD("maincpu", I8086, XTAL_24MHz/3) /* 24Mhz crystal divided down by i8284 clock generator */
MCFG_CPU_PROGRAM_MAP(notetaker_mem)
MCFG_CPU_IO_MAP(notetaker_io)