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attache: Fixed CMOS RAM reading.

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This commit is contained in:
mahlemiut 2013-06-09 02:01:56 +00:00
parent 5fa112b5a4
commit d09f6e1035
1 changed files with 18 additions and 6 deletions
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24
src/mess/drivers/attache.c
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@ -3,7 +3,7 @@
*
* Created on: 17/05/2013
*
* Skeleton driver
* Driver by Barry Rodewald
*
*
* Otrona Attache
@ -63,6 +63,7 @@
#include "machine/upd765.h"
#include "video/tms9927.h"
#include "machine/ram.h"
#include "machine/nvram.h"
class attache_state : public driver_device
{
@ -100,6 +101,7 @@ public:
m_membank6(*this, "bank6"),
m_membank7(*this, "bank7"),
m_membank8(*this, "bank8"),
m_nvram(*this, "nvram"),
m_rom_active(true),
m_gfx_enabled(false),
m_kb_clock(true),
@ -197,6 +199,7 @@ private:
required_memory_bank m_membank6;
required_memory_bank m_membank7;
required_memory_bank m_membank8;
required_device<nvram_device> m_nvram;
bool m_rom_active;
bool m_gfx_enabled;
@ -434,6 +437,7 @@ void attache_state::keyboard_clock_w(bool state)
READ8_MEMBER(attache_state::pio_portA_r)
{
UINT8 ret = 0xff;
UINT8 porta = m_pio_porta;
switch(m_pio_select)
{
@ -442,20 +446,24 @@ READ8_MEMBER(attache_state::pio_portA_r)
logerror("PSG: data read %02x\n",ret);
break;
case PIO_SEL_5832_WRITE:
m_rtc->address_w((porta & 0xf0) >> 4);
ret = m_rtc->data_r(space,0);
logerror("RTC: read %02x (write)\n",ret);
break;
case PIO_SEL_5832_READ:
m_rtc->address_w((porta & 0xf0) >> 4);
ret = m_rtc->data_r(space,0);
logerror("RTC: read %02x\n",ret);
break;
case PIO_SEL_5101_WRITE:
m_cmos_select = (m_cmos_select & 0xf0) | ((porta & 0xf0) >> 4);
ret = m_cmos_ram[m_cmos_select] & 0x0f;
logerror("CMOS: read %02x to byte %02x (write)\n",ret, m_cmos_select);
logerror("CMOS: read %02x from byte %02x (write)\n",ret, m_cmos_select);
break;
case PIO_SEL_5101_READ:
m_cmos_select = (m_cmos_select & 0xf0) | ((porta & 0xf0) >> 4);
ret = m_cmos_ram[m_cmos_select] & 0x0f;
logerror("CMOS: read %02x to byte %02x\n",ret, m_cmos_select);
logerror("CMOS: read %02x from byte %02x\n",ret, m_cmos_select);
break;
case PIO_SEL_LATCH:
ret = 0x00; // Write-only?
@ -555,9 +563,9 @@ WRITE8_MEMBER(attache_state::pio_portB_w)
//B7 = /KEYBOARD CLOCK OUT
if((data & 0x20) && !(m_pio_portb & 0x20))
operation_strobe(space,m_pio_porta);
m_pio_portb = data;
m_pio_select = (data & 0x1c) >> 2;
m_cmos_select = ((data & 0x03) << 4) | (m_cmos_select & 0x0f);
m_pio_portb = data;
keyboard_clock_w(data & 0x80);
}
@ -955,6 +963,8 @@ void attache_state::driver_start()
memset(RAM,0,65536);
m_nvram->set_base(m_cmos_ram,64);
m_maincpu->space(AS_PROGRAM).install_readwrite_handler(0x0000,0x0fff,read8_delegate(FUNC(attache_state::rom_r),this),write8_delegate(FUNC(attache_state::rom_w),this));
save_pointer(m_char_ram,"Character RAM",128*32);
@ -1017,6 +1027,8 @@ static MACHINE_CONFIG_START( attache, attache_state )
MCFG_TMS9927_ADD("crtc", 12324000, crtc_interface)
MCFG_NVRAM_ADD_0FILL("nvram")
MCFG_RAM_ADD(RAM_TAG)
MCFG_RAM_DEFAULT_SIZE("64k")
@ -1064,5 +1076,5 @@ ROM_START( attachef )
ROM_END
/* YEAR NAME PARENT COMPAT MACHINE INPUT DEVICE INIT COMPANY FULLNAME FLAGS */
COMP( 1982, attache, 0, 0, attache, attache, driver_device, 0, "Otrona", "Attache (boot rev G)", GAME_IS_SKELETON)
COMP( 1982, attachef,attache,0, attache, attache, driver_device, 0, "Otrona", "Attache (boot rev F)", GAME_IS_SKELETON)
COMP( 1982, attache, 0, 0, attache, attache, driver_device, 0, "Otrona", "Attache (boot rev G)", GAME_IMPERFECT_GRAPHICS|GAME_NOT_WORKING)
COMP( 1982, attachef,attache,0, attache, attache, driver_device, 0, "Otrona", "Attache (boot rev F)", GAME_IMPERFECT_GRAPHICS|GAME_NOT_WORKING)