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apricot: need to add ram this way, otherwise the iop can't access it

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This commit is contained in:
Dirk Best 2015-06-09 00:22:03 +02:00
parent dced6eab22
commit 72dd919d34
1 changed files with 9 additions and 1 deletions
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10
src/mess/drivers/apricot.c
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@ -11,6 +11,7 @@
#include "cpu/i86/i86.h"
#include "cpu/i8089/i8089.h"
#include "machine/ram.h"
#include "machine/pit8253.h"
#include "machine/i8255.h"
#include "machine/pic8259.h"
@ -36,6 +37,7 @@ public:
driver_device(mconfig, type, tag),
m_cpu(*this, "ic91"),
m_iop(*this, "ic71"),
m_ram(*this, RAM_TAG),
m_sn(*this, "ic7"),
m_crtc(*this, "ic30"),
m_ppi(*this, "ic17"),
@ -89,6 +91,7 @@ protected:
private:
required_device<i8086_cpu_device> m_cpu;
required_device<i8089_device> m_iop;
required_device<ram_device> m_ram;
required_device<sn76489_device> m_sn;
required_device<mc6845_device> m_crtc;
required_device<i8255_device> m_ppi;
@ -299,6 +302,7 @@ MC6845_UPDATE_ROW( apricot_state::crtc_update_row )
void apricot_state::machine_start()
{
membank("ram")->set_base(m_ram->pointer());
}
IRQ_CALLBACK_MEMBER( apricot_state::irq_callback )
@ -316,7 +320,7 @@ IRQ_CALLBACK_MEMBER( apricot_state::irq_callback )
//**************************************************************************
static ADDRESS_MAP_START( apricot_mem, AS_PROGRAM, 16, apricot_state )
AM_RANGE(0x00000, 0x3ffff) AM_RAM
AM_RANGE(0x00000, 0x3ffff) AM_RAMBANK("ram")
AM_RANGE(0xf0000, 0xf0fff) AM_MIRROR(0x7000) AM_RAM AM_SHARE("screen_buffer")
AM_RANGE(0xfc000, 0xfffff) AM_MIRROR(0x4000) AM_ROM AM_REGION("bootstrap", 0)
ADDRESS_MAP_END
@ -355,6 +359,10 @@ static MACHINE_CONFIG_START( apricot, apricot_state )
MCFG_I8089_SINTR1(DEVWRITELINE("ic31", pic8259_device, ir0_w))
MCFG_I8089_SINTR2(DEVWRITELINE("ic31", pic8259_device, ir1_w))
// ram
MCFG_RAM_ADD(RAM_TAG)
MCFG_RAM_DEFAULT_SIZE("256k")
// video hardware
MCFG_SCREEN_ADD("screen", RASTER)
MCFG_SCREEN_SIZE(800, 400)