mirror of
https://github.com/holub/mame
synced 2025-05-23 22:20:01 +03:00
Updated the INS 8154 RAM I/O device to no longer be legacy. [Harmony]
Non-whatsnew note: For MESS.
This commit is contained in:
Ryan Holtz
parent
04aa0a09eb
commit
4cc59054e0
@ -85,7 +85,9 @@ void pia6821_device_config::device_config_complete()
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// inherit a copy of the static data
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const pia6821_interface *intf = reinterpret_cast<const pia6821_interface *>(static_config());
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if (intf != NULL)
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{
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*static_cast<pia6821_interface *>(this) = *intf;
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}
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// or initialize to defaults if none provided
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else
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@ -11,6 +11,7 @@
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#include "emu.h"
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#include "ins8154.h"
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#include "devhelpr.h"
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/***************************************************************************
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@ -29,86 +30,136 @@ enum
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};
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/***************************************************************************
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TYPE DEFINITIONS
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***************************************************************************/
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typedef struct _ins8154_state ins8154_state;
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struct _ins8154_state
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{
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/* i/o lines */
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devcb_resolved_read8 in_a_func;
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devcb_resolved_write8 out_a_func;
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devcb_resolved_read8 in_b_func;
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devcb_resolved_write8 out_b_func;
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devcb_resolved_write_line out_irq_func;
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/* registers */
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UINT8 in_a; /* Input Latch Port A */
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UINT8 in_b; /* Input Latch Port B */
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UINT8 out_a; /* Output Latch Port A */
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UINT8 out_b; /* Output Latch Port B */
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UINT8 mdr; /* Mode Definition Register */
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UINT8 odra; /* Output Definition Register Port A */
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UINT8 odrb; /* Output Definition Register Port B */
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};
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/*****************************************************************************
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INLINE FUNCTIONS
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*****************************************************************************/
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INLINE ins8154_state *get_safe_token(running_device *device)
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{
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assert(device != NULL);
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assert(device->type() == INS8154);
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return (ins8154_state *)downcast<legacy_device_base *>(device)->token();
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}
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/***************************************************************************
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IMPLEMENTATION
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***************************************************************************/
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READ8_DEVICE_HANDLER( ins8154_r )
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//**************************************************************************
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// DEVICE CONFIGURATION
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//**************************************************************************
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GENERIC_DEVICE_CONFIG_SETUP(ins8154, "INS8154")
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//-------------------------------------------------
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// device_config_complete - perform any
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// operations now that the configuration is
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// complete
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//-------------------------------------------------
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void ins8154_device_config::device_config_complete()
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{
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// inherit a copy of the static data
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const ins8154_interface *intf = reinterpret_cast<const ins8154_interface *>(static_config());
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if (intf != NULL)
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{
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*static_cast<ins8154_interface *>(this) = *intf;
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}
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// or initialize to defaults if none provided
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else
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{
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memset(&m_in_a_func, 0, sizeof(m_in_a_func));
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memset(&m_in_b_func, 0, sizeof(m_in_b_func));
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memset(&m_out_a_func, 0, sizeof(m_out_a_func));
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memset(&m_out_b_func, 0, sizeof(m_out_b_func));
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memset(&m_out_irq_func, 0, sizeof(m_out_irq_func));
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}
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}
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//**************************************************************************
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// LIVE DEVICE
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//**************************************************************************
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const device_type INS8154 = ins8154_device_config::static_alloc_device_config;
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//-------------------------------------------------
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// ins8154_device - constructor
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//-------------------------------------------------
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ins8154_device::ins8154_device(running_machine &_machine, const ins8154_device_config &config)
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: device_t(_machine, config),
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m_config(config)
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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 ins8154_device::device_start()
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{
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/* resolve callbacks */
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devcb_resolve_read8(&m_in_a_func, &m_config.m_in_a_func, this);
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devcb_resolve_write8(&m_out_a_func, &m_config.m_out_a_func, this);
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devcb_resolve_read8(&m_in_b_func, &m_config.m_in_b_func, this);
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devcb_resolve_write8(&m_out_b_func, &m_config.m_out_b_func, this);
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devcb_resolve_write_line(&m_out_irq_func, &m_config.m_out_irq_func, this);
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/* register for state saving */
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state_save_register_device_item(this, 0, m_in_a);
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state_save_register_device_item(this, 0, m_in_b);
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state_save_register_device_item(this, 0, m_out_a);
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state_save_register_device_item(this, 0, m_out_b);
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state_save_register_device_item(this, 0, m_mdr);
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state_save_register_device_item(this, 0, m_odra);
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state_save_register_device_item(this, 0, m_odrb);
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}
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//-------------------------------------------------
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// device_reset - device-specific reset
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//-------------------------------------------------
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void ins8154_device::device_reset()
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{
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m_in_a = 0;
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m_in_b = 0;
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m_out_a = 0;
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m_out_b = 0;
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m_mdr = 0;
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m_odra = 0;
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m_odrb = 0;
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}
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READ8_DEVICE_HANDLER_TRAMPOLINE(ins8154, ins8154_r)
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{
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ins8154_state *ins8154 = get_safe_token(device);
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UINT8 val = 0xff;
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if (offset > 0x24)
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{
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if (VERBOSE)
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logerror("%s: INS8154 '%s' Read from invalid offset %02x!\n", cpuexec_describe_context(device->machine), device->tag(), offset);
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{
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logerror("%s: INS8154 '%s' Read from invalid offset %02x!\n", cpuexec_describe_context(&m_machine), tag(), offset);
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}
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return 0xff;
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}
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switch (offset)
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{
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case 0x20:
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if (ins8154->in_a_func.read != NULL)
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val = devcb_call_read8(&ins8154->in_a_func, 0);
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ins8154->in_a = val;
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val = devcb_call_read8(&m_in_a_func, 0);
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m_in_a = val;
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break;
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case 0x21:
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if (ins8154->in_b_func.read != NULL)
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val = devcb_call_read8(&ins8154->in_b_func, 0);
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ins8154->in_b = val;
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val = devcb_call_read8(&m_in_b_func, 0);
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m_in_b = val;
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break;
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default:
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if (offset < 0x08)
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{
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if (ins8154->in_a_func.read != NULL)
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val = (devcb_call_read8(&ins8154->in_a_func, 0) << (8 - offset)) & 0x80;
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ins8154->in_a = val;
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val = (devcb_call_read8(&m_in_a_func, 0) << (8 - offset)) & 0x80;
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m_in_a = val;
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}
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else
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{
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if (ins8154->in_b_func.read != NULL)
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val = (devcb_call_read8(&ins8154->in_b_func, 0) << (8 - (offset >> 4))) & 0x80;
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ins8154->in_b = val;
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val = (devcb_call_read8(&m_in_b_func, 0) << (8 - (offset >> 4))) & 0x80;
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m_in_b = val;
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}
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break;
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}
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@ -116,68 +167,74 @@ READ8_DEVICE_HANDLER( ins8154_r )
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return val;
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}
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WRITE8_DEVICE_HANDLER( ins8154_porta_w )
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WRITE8_DEVICE_HANDLER_TRAMPOLINE(ins8154, ins8154_porta_w)
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{
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ins8154_state *ins8154 = get_safe_token(device);
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ins8154->out_a = data;
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m_out_a = data;
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/* Test if any pins are set as outputs */
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if (ins8154->odra)
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devcb_call_write8(&ins8154->out_a_func, 0, (data & ins8154->odra) | (ins8154->odra ^ 0xff));
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if (m_odra)
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{
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devcb_call_write8(&m_out_a_func, 0, (data & m_odra) | (m_odra ^ 0xff));
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}
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}
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WRITE8_DEVICE_HANDLER( ins8154_portb_w )
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WRITE8_DEVICE_HANDLER_TRAMPOLINE(ins8154, ins8154_portb_w)
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{
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ins8154_state *ins8154 = get_safe_token(device);
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ins8154->out_b = data;
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m_out_b = data;
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/* Test if any pins are set as outputs */
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if (ins8154->odrb)
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devcb_call_write8(&ins8154->out_b_func, 0, (data & ins8154->odrb) | (ins8154->odrb ^ 0xff));
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if (m_odrb)
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{
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devcb_call_write8(&m_out_b_func, 0, (data & m_odrb) | (m_odrb ^ 0xff));
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}
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}
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WRITE8_DEVICE_HANDLER( ins8154_w )
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WRITE8_DEVICE_HANDLER_TRAMPOLINE(ins8154, ins8154_w)
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{
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ins8154_state *ins8154 = get_safe_token(device);
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if (offset > 0x24)
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{
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if (VERBOSE)
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logerror("%s: INS8154 '%s' Write %02x to invalid offset %02x!\n", cpuexec_describe_context(device->machine), device->tag(), data, offset);
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{
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logerror("%s: INS8154 '%s' Write %02x to invalid offset %02x!\n", cpuexec_describe_context(&m_machine), tag(), data, offset);
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}
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return;
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}
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switch (offset)
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{
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case 0x20:
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ins8154_porta_w(device, 0, data);
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ins8154_porta_w(0, data);
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break;
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case 0x21:
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ins8154_portb_w(device, 0, data);
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ins8154_portb_w(0, data);
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break;
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case 0x22:
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if (VERBOSE)
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logerror("%s: INS8154 '%s' ODRA set to %02x\n", cpuexec_describe_context(device->machine), device->tag(), data);
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{
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logerror("%s: INS8154 '%s' ODRA set to %02x\n", cpuexec_describe_context(&m_machine), tag(), data);
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}
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ins8154->odra = data;
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m_odra = data;
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break;
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case 0x23:
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if (VERBOSE)
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logerror("%s: INS8154 '%s' ODRB set to %02x\n", cpuexec_describe_context(device->machine), device->tag(), data);
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{
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logerror("%s: INS8154 '%s' ODRB set to %02x\n", cpuexec_describe_context(&m_machine), tag(), data);
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}
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ins8154->odrb = data;
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m_odrb = data;
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break;
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case 0x24:
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if (VERBOSE)
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logerror("%s: INS8154 '%s' MDR set to %02x\n", cpuexec_describe_context(device->machine), device->tag(), data);
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{
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logerror("%s: INS8154 '%s' MDR set to %02x\n", cpuexec_describe_context(&m_machine), tag(), data);
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}
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ins8154->mdr = data;
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m_mdr = data;
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break;
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default:
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@ -186,11 +243,11 @@ WRITE8_DEVICE_HANDLER( ins8154_w )
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/* Set bit */
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if (offset < 0x08)
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{
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ins8154_porta_w(device, 0, ins8154->out_a |= offset & 0x07);
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ins8154_porta_w(0, m_out_a |= offset & 0x07);
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}
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else
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{
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ins8154_portb_w(device, 0, ins8154->out_b |= (offset >> 4) & 0x07);
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ins8154_portb_w(0, m_out_b |= (offset >> 4) & 0x07);
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}
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}
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else
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@ -198,75 +255,14 @@ WRITE8_DEVICE_HANDLER( ins8154_w )
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/* Clear bit */
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if (offset < 0x08)
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{
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ins8154_porta_w(device, 0, ins8154->out_a & ~(offset & 0x07));
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ins8154_porta_w(0, m_out_a & ~(offset & 0x07));
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}
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else
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{
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ins8154_portb_w(device, 0, ins8154->out_b & ~((offset >> 4) & 0x07));
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ins8154_portb_w(0, m_out_b & ~((offset >> 4) & 0x07));
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}
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}
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break;
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}
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}
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/*****************************************************************************
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DEVICE INTERFACE
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*****************************************************************************/
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static DEVICE_START( ins8154 )
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{
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ins8154_state *ins8154 = get_safe_token(device);
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const ins8154_interface *intf = (const ins8154_interface *)device->baseconfig().static_config();
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/* validate some basic stuff */
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assert(intf != NULL);
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/* resolve callbacks */
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devcb_resolve_read8(&ins8154->in_a_func, &intf->in_a_func, device);
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devcb_resolve_write8(&ins8154->out_a_func, &intf->out_a_func, device);
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devcb_resolve_read8(&ins8154->in_b_func, &intf->in_b_func, device);
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devcb_resolve_write8(&ins8154->out_b_func, &intf->out_b_func, device);
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devcb_resolve_write_line(&ins8154->out_irq_func, &intf->out_irq_func, device);
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/* register for state saving */
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state_save_register_device_item(device, 0, ins8154->in_a);
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state_save_register_device_item(device, 0, ins8154->in_b);
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state_save_register_device_item(device, 0, ins8154->out_a);
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state_save_register_device_item(device, 0, ins8154->out_b);
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state_save_register_device_item(device, 0, ins8154->mdr);
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state_save_register_device_item(device, 0, ins8154->odra);
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state_save_register_device_item(device, 0, ins8154->odrb);
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}
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static DEVICE_RESET( ins8154 )
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{
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ins8154_state *ins8154 = get_safe_token(device);
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ins8154->in_a = 0;
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ins8154->in_b = 0;
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ins8154->out_a = 0;
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ins8154->out_b = 0;
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ins8154->mdr = 0;
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ins8154->odra = 0;
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ins8154->odrb = 0;
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}
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/***************************************************************************
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DEVICE GETINFO
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***************************************************************************/
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static const char DEVTEMPLATE_SOURCE[] = __FILE__;
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#define DEVTEMPLATE_ID(p,s) p##ins8154##s
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#define DEVTEMPLATE_FEATURES DT_HAS_START | DT_HAS_RESET
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#define DEVTEMPLATE_NAME "INS8154"
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#define DEVTEMPLATE_FAMILY "INS8154"
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#define DEVTEMPLATE_VERSION "1.1"
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#define DEVTEMPLATE_CREDITS "Copyright MESS Team"
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#include "devtempl.h"
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DEFINE_LEGACY_DEVICE(INS8154, ins8154);
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@ -28,40 +28,14 @@
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***************************************************************************/
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#pragma once
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#ifndef __INS8154_H__
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#define __INS8154_H__
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#include "devlegcy.h"
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#include "devcb.h"
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#include "emu.h"
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/***************************************************************************
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TYPE DEFINITIONS
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***************************************************************************/
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typedef struct _ins8154_interface ins8154_interface;
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struct _ins8154_interface
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{
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devcb_read8 in_a_func;
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devcb_write8 out_a_func;
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devcb_read8 in_b_func;
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devcb_write8 out_b_func;
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devcb_write_line out_irq_func;
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};
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DECLARE_LEGACY_DEVICE(INS8154, ins8154);
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/***************************************************************************
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FUNCTION PROTOTYPES
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***************************************************************************/
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READ8_DEVICE_HANDLER( ins8154_r );
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WRITE8_DEVICE_HANDLER( ins8154_w );
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WRITE8_DEVICE_HANDLER( ins8154_porta_w );
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WRITE8_DEVICE_HANDLER( ins8154_portb_w );
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/***************************************************************************
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DEVICE CONFIGURATION MACROS
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@ -72,4 +46,106 @@ WRITE8_DEVICE_HANDLER( ins8154_portb_w );
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MDRV_DEVICE_CONFIG(_intrf)
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/***************************************************************************
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TYPE DEFINITIONS
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***************************************************************************/
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// ======================> ins8154_interface
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struct ins8154_interface
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{
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devcb_read8 m_in_a_func;
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devcb_write8 m_out_a_func;
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devcb_read8 m_in_b_func;
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devcb_write8 m_out_b_func;
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devcb_write_line m_out_irq_func;
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};
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// ======================> ins8154_device_config
|
||||
|
||||
class ins8154_device_config : public device_config,
|
||||
public ins8154_interface
|
||||
{
|
||||
friend class ins8154_device;
|
||||
|
||||
// construction/destruction
|
||||
ins8154_device_config(const machine_config &mconfig, const char *tag, const device_config *owner, UINT32 clock);
|
||||
|
||||
public:
|
||||
// allocators
|
||||
static device_config *static_alloc_device_config(const machine_config &mconfig, const char *tag, const device_config *owner, UINT32 clock);
|
||||
virtual device_t *alloc_device(running_machine &machine) const;
|
||||
|
||||
protected:
|
||||
// device_config overrides
|
||||
virtual void device_config_complete();
|
||||
};
|
||||
|
||||
|
||||
|
||||
// ======================> ins8154_device
|
||||
|
||||
class ins8154_device : public device_t
|
||||
{
|
||||
friend class ins8154_device_config;
|
||||
|
||||
// construction/destruction
|
||||
ins8154_device(running_machine &_machine, const ins8154_device_config &_config);
|
||||
|
||||
public:
|
||||
|
||||
UINT8 ins8154_r(UINT32 offset);
|
||||
void ins8154_w(UINT32 offset, UINT8 data);
|
||||
|
||||
void ins8154_porta_w(UINT32 offset, UINT8 data);
|
||||
void ins8154_portb_w(UINT32 offset, UINT8 data);
|
||||
|
||||
protected:
|
||||
// device-level overrides
|
||||
virtual void device_start();
|
||||
virtual void device_reset();
|
||||
virtual void device_post_load() { }
|
||||
virtual void device_clock_changed() { }
|
||||
|
||||
private:
|
||||
|
||||
/* i/o lines */
|
||||
devcb_resolved_read8 m_in_a_func;
|
||||
devcb_resolved_write8 m_out_a_func;
|
||||
devcb_resolved_read8 m_in_b_func;
|
||||
devcb_resolved_write8 m_out_b_func;
|
||||
devcb_resolved_write_line m_out_irq_func;
|
||||
|
||||
/* registers */
|
||||
UINT8 m_in_a; /* Input Latch Port A */
|
||||
UINT8 m_in_b; /* Input Latch Port B */
|
||||
UINT8 m_out_a; /* Output Latch Port A */
|
||||
UINT8 m_out_b; /* Output Latch Port B */
|
||||
UINT8 m_mdr; /* Mode Definition Register */
|
||||
UINT8 m_odra; /* Output Definition Register Port A */
|
||||
UINT8 m_odrb; /* Output Definition Register Port B */
|
||||
|
||||
const ins8154_device_config &m_config;
|
||||
};
|
||||
|
||||
|
||||
// device type definition
|
||||
extern const device_type INS8154;
|
||||
|
||||
|
||||
|
||||
/***************************************************************************
|
||||
PROTOTYPES
|
||||
***************************************************************************/
|
||||
|
||||
READ8_DEVICE_HANDLER( ins8154_r );
|
||||
WRITE8_DEVICE_HANDLER( ins8154_w );
|
||||
|
||||
WRITE8_DEVICE_HANDLER( ins8154_porta_w );
|
||||
WRITE8_DEVICE_HANDLER( ins8154_portb_w );
|
||||
|
||||
|
||||
#endif /* __INS8154_H__ */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user