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https://github.com/holub/mame
synced 2025-04-23 00:39:36 +03:00
autoc15: Added RAM disc device.
daisy: Corrected ROM SHA1 (nw)
This commit is contained in:
Nigel Barnes
parent
7104687b70
commit
d4df190a68
@ -433,6 +433,8 @@ if (BUSES["BBC_EXP"]~=null) then
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files {
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MAME_DIR .. "src/devices/bus/bbc/exp/exp.cpp",
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MAME_DIR .. "src/devices/bus/bbc/exp/exp.h",
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MAME_DIR .. "src/devices/bus/bbc/exp/autocue.cpp",
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MAME_DIR .. "src/devices/bus/bbc/exp/autocue.h",
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MAME_DIR .. "src/devices/bus/bbc/exp/mertec.cpp",
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MAME_DIR .. "src/devices/bus/bbc/exp/mertec.h",
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}
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100
src/devices/bus/bbc/exp/autocue.cpp
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100
src/devices/bus/bbc/exp/autocue.cpp
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@ -0,0 +1,100 @@
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// license:BSD-3-Clause
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// copyright-holders:Nigel Barnes
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/**********************************************************************
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Autocue RAM Disc
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The RAM is accessible through JIM (page &FD). One page is visible in JIM at a time.
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The selected page is controlled by the two paging registers:
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&FCFE Paging register MSB
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&FCFF Paging register LSB
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256K board has 1024 pages &000 to &3FF
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512K board has 2048 pages &000 to &7FF
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**********************************************************************/
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#include "emu.h"
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#include "autocue.h"
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//**************************************************************************
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// DEVICE DEFINITIONS
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//**************************************************************************
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DEFINE_DEVICE_TYPE(BBC_AUTOCUE, bbc_autocue_device, "bbc_autocue", "Autocue RAM Disc");
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//-------------------------------------------------
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// device_add_mconfig - add device configuration
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//-------------------------------------------------
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void bbc_autocue_device::device_add_mconfig(machine_config &config)
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{
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NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0);
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}
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//**************************************************************************
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// LIVE DEVICE
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//**************************************************************************
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//-------------------------------------------------
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// bbc_autocue_device - constructor
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//-------------------------------------------------
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bbc_autocue_device::bbc_autocue_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock)
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: device_t(mconfig, BBC_AUTOCUE, tag, owner, clock)
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, device_bbc_exp_interface(mconfig, *this)
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, m_nvram(*this, "nvram")
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, m_ram_page(0)
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{
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}
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//-------------------------------------------------
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// device_start - device-specific startup
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//-------------------------------------------------
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void bbc_autocue_device::device_start()
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{
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/* ram disk - board with 8 x HM62256LFP-12 - 256K expandable to 512K */
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m_ram = make_unique_clear<uint8_t[]>(0x40000);
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m_nvram->set_base(m_ram.get(), 0x40000);
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}
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//**************************************************************************
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// IMPLEMENTATION
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//**************************************************************************
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void bbc_autocue_device::fred_w(offs_t offset, uint8_t data)
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{
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switch (offset)
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{
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case 0xff: m_ram_page = (m_ram_page & 0x00ff) | (data << 8); break;
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case 0xfe: m_ram_page = (m_ram_page & 0xff00) | (data << 0); break;
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}
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//logerror("Write ram_page=%04x\n", m_ram_page);
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}
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uint8_t bbc_autocue_device::jim_r(offs_t offset)
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{
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uint8_t data = 0xff;
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if (m_ram_page < 0x400)
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{
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data = m_ram[(m_ram_page << 8) | offset];
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}
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//logerror("Read %04x -> %02x\n", offset | 0xfd00, data);
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return data;
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}
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void bbc_autocue_device::jim_w(offs_t offset, uint8_t data)
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{
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//logerror("Write %04x <- %02x\n", offset | 0xfd00, data);
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if (m_ram_page < 0x400)
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{
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m_ram[(m_ram_page << 8) | offset] = data;
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}
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}
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51
src/devices/bus/bbc/exp/autocue.h
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51
src/devices/bus/bbc/exp/autocue.h
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@ -0,0 +1,51 @@
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// license:BSD-3-Clause
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// copyright-holders:Nigel Barnes
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/**********************************************************************
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Autocue RAM Disc
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**********************************************************************/
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#ifndef MAME_BUS_BBC_EXP_AUTOCUE_H
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#define MAME_BUS_BBC_EXP_AUTOCUE_H
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#include "exp.h"
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#include "machine/nvram.h"
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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class bbc_autocue_device :
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public device_t,
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public device_bbc_exp_interface
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{
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public:
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// construction/destruction
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bbc_autocue_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
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protected:
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// device-level overrides
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virtual void device_start() override;
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// optional information overrides
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virtual void device_add_mconfig(machine_config &config) override;
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virtual void fred_w(offs_t offset, uint8_t data) override;
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virtual uint8_t jim_r(offs_t offset) override;
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virtual void jim_w(offs_t offset, uint8_t data) override;
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private:
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required_device<nvram_device> m_nvram;
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std::unique_ptr<uint8_t[]> m_ram;
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uint16_t m_ram_page;
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};
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// device type definition
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DECLARE_DEVICE_TYPE(BBC_AUTOCUE, bbc_autocue_device);
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#endif /* MAME_BUS_BBC_EXP_AUTOCUE_H */
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@ -149,12 +149,12 @@ void bbc_exp_slot_device::pb_w(uint8_t data)
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// slot devices
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//#include "autocue.h"
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#include "autocue.h"
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#include "mertec.h"
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void bbc_exp_devices(device_slot_interface &device)
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{
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//device.option_add("autocue", BBC_AUTOCUE); /* Autocue RAM disk board */
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device.option_add("mertec", BBC_MERTEC); /* Mertec Compact Companion */
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device.option_add_internal("autocue", BBC_AUTOCUE); /* Autocue RAM disk board */
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device.option_add("mertec", BBC_MERTEC); /* Mertec Compact Companion */
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}
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@ -1796,8 +1796,8 @@ void bbcm_state::autoc15(machine_config &config)
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m_hd6845->out_vsync_callback().set(FUNC(bbc_state::bbc_vsync_changed));
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/* Autocue RAM disc */
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//m_exp->set_default_option("autocue");
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//m_exp->set_fixed(true);
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m_exp->set_default_option("autocue");
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m_exp->set_fixed(true);
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}
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@ -2382,7 +2382,7 @@ ROM_START(daisy)
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/* 38000 rom 14 IC24 View + MOS code */
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/* 3c000 rom 15 IC24 Terminal + Tube host + CFS */
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ROM_LOAD("simdist_2_22-2-89_dhrfdsy.rom", 0x10000, 0x8000, CRC(8a9d9c4a) SHA1(278c5c63e06359601cdf972f55e98f5a7442a713))
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ROM_LOAD("daisy_irfdsy_vr4_5-1-89.rom", 0x18000, 0x8000, CRC(9662d779) SHA1(99234b55fde57680e4217b72ef4ccb8fc56edeff))
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ROM_LOAD("daisy_irfdsy_vr4_5-1-89.rom", 0x18000, 0x8000, CRC(9662d779) SHA1(0841c1fd34c152f3f02ace8633f1fa3f5139069e))
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ROM_LOAD("hibas03_a063.rom", 0x20000, 0x4000, CRC(6ea7affc) SHA1(99234b55fde57680e4217b72ef4ccb8fc56edeff))
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ROM_REGION(0x4000, "mos", 0)
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