mirror of
https://github.com/holub/mame
synced 2025-04-26 02:07:14 +03:00
Refactored CDP1864 into a C++ device. (no whatsnew)
This commit is contained in:
Curt Coder
parent
743b04fff7
commit
f6f42c5f46
@ -22,12 +22,15 @@
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*/
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#include "emu.h"
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#include "cdp1864.h"
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/***************************************************************************
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PARAMETERS
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***************************************************************************/
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//**************************************************************************
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// MACROS / CONSTANTS
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//**************************************************************************
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#define CDP1864_DEFAULT_LATCH 0x35
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@ -37,183 +40,103 @@
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static const int CDP1864_BACKGROUND_COLOR_SEQUENCE[] = { 2, 0, 1, 4 };
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/***************************************************************************
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TYPE DEFINITIONS
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***************************************************************************/
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typedef struct _cdp1864_t cdp1864_t;
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struct _cdp1864_t
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//**************************************************************************
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// GLOBAL VARIABLES
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//**************************************************************************
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// devices
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const device_type CDP1864 = cdp1864_device_config::static_alloc_device_config;
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//**************************************************************************
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// DEVICE CONFIGURATION
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//**************************************************************************
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//-------------------------------------------------
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// cdp1864_device_config - constructor
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//-------------------------------------------------
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cdp1864_device_config::cdp1864_device_config(const machine_config &mconfig, const char *tag, const device_config *owner, UINT32 clock)
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: device_config(mconfig, static_alloc_device_config, "CDP1864", tag, owner, clock),
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device_config_sound_interface(mconfig, *this)
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{
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devcb_resolved_read_line in_rdata_func;
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devcb_resolved_read_line in_bdata_func;
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devcb_resolved_read_line in_gdata_func;
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devcb_resolved_write_line out_int_func;
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devcb_resolved_write_line out_dmao_func;
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devcb_resolved_write_line out_efx_func;
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screen_device *screen; /* screen */
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bitmap_t *bitmap; /* bitmap */
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sound_stream *stream; /* sound output */
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/* video state */
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int disp; /* display on */
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int dmaout; /* DMA request active */
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int bgcolor; /* background color */
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int con; /* color on */
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/* sound state */
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int aoe; /* audio on */
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int latch; /* sound latch */
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INT16 signal; /* current signal */
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int incr; /* initial wave state */
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/* timers */
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emu_timer *int_timer; /* interrupt timer */
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emu_timer *efx_timer; /* EFx timer */
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emu_timer *dma_timer; /* DMA timer */
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device_t *cpu;
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};
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/***************************************************************************
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INLINE FUNCTIONS
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***************************************************************************/
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INLINE cdp1864_t *get_safe_token(device_t *device)
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{
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assert(device != NULL);
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return (cdp1864_t *)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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/*-------------------------------------------------
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TIMER_CALLBACK( cdp1864_int_tick )
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-------------------------------------------------*/
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//-------------------------------------------------
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// static_alloc_device_config - allocate a new
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// configuration object
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//-------------------------------------------------
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static TIMER_CALLBACK( cdp1864_int_tick )
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device_config *cdp1864_device_config::static_alloc_device_config(const machine_config &mconfig, const char *tag, const device_config *owner, UINT32 clock)
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{
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device_t *device = (device_t *) ptr;
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cdp1864_t *cdp1864 = get_safe_token(device);
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return global_alloc(cdp1864_device_config(mconfig, tag, owner, clock));
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}
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int scanline = cdp1864->screen->vpos();
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if (scanline == CDP1864_SCANLINE_INT_START)
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{
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if (cdp1864->disp)
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{
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devcb_call_write_line(&cdp1864->out_int_func, ASSERT_LINE);
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}
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//-------------------------------------------------
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// alloc_device - allocate a new device object
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//-------------------------------------------------
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cdp1864->int_timer->adjust(cdp1864->screen->time_until_pos(CDP1864_SCANLINE_INT_END));
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}
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device_t *cdp1864_device_config::alloc_device(running_machine &machine) const
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{
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return auto_alloc(machine, cdp1864_device(machine, *this));
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}
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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 cdp1864_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 cdp1864_interface *intf = reinterpret_cast<const cdp1864_interface *>(static_config());
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if (intf != NULL)
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*static_cast<cdp1864_interface *>(this) = *intf;
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// or initialize to defaults if none provided
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else
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{
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if (cdp1864->disp)
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{
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devcb_call_write_line(&cdp1864->out_int_func, CLEAR_LINE);
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}
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cdp1864->int_timer->adjust(cdp1864->screen->time_until_pos(CDP1864_SCANLINE_INT_START));
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memset(&m_in_inlace_func, 0, sizeof(m_in_inlace_func));
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memset(&m_in_rdata_func, 0, sizeof(m_in_rdata_func));
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memset(&m_in_bdata_func, 0, sizeof(m_in_bdata_func));
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memset(&m_in_gdata_func, 0, sizeof(m_in_gdata_func));
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memset(&m_out_int_func, 0, sizeof(m_out_int_func));
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memset(&m_out_dmao_func, 0, sizeof(m_out_dmao_func));
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memset(&m_out_efx_func, 0, sizeof(m_out_efx_func));
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memset(&m_out_hsync_func, 0, sizeof(m_out_hsync_func));
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}
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}
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/*-------------------------------------------------
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TIMER_CALLBACK( cdp1864_efx_tick )
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-------------------------------------------------*/
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static TIMER_CALLBACK( cdp1864_efx_tick )
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//**************************************************************************
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// INLINE HELPERS
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//**************************************************************************
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//-------------------------------------------------
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// initialize_palette -
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//-------------------------------------------------
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inline void cdp1864_device::initialize_palette()
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{
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device_t *device = (device_t *) ptr;
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cdp1864_t *cdp1864 = get_safe_token(device);
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double res_total = m_config.m_res_r + m_config.m_res_g + m_config.m_res_b + m_config.m_res_bkg;
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int scanline = cdp1864->screen->vpos();
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int weight_r = (m_config.m_res_r / res_total) * 100;
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int weight_g = (m_config.m_res_g / res_total) * 100;
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int weight_b = (m_config.m_res_b / res_total) * 100;
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int weight_bkg = (m_config.m_res_bkg / res_total) * 100;
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switch (scanline)
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for (int i = 0; i < 16; i++)
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{
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case CDP1864_SCANLINE_EFX_TOP_START:
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devcb_call_write_line(&cdp1864->out_efx_func, ASSERT_LINE);
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cdp1864->efx_timer->adjust(cdp1864->screen->time_until_pos(CDP1864_SCANLINE_EFX_TOP_END));
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break;
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case CDP1864_SCANLINE_EFX_TOP_END:
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devcb_call_write_line(&cdp1864->out_efx_func, CLEAR_LINE);
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cdp1864->efx_timer->adjust(cdp1864->screen->time_until_pos(CDP1864_SCANLINE_EFX_BOTTOM_START));
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break;
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case CDP1864_SCANLINE_EFX_BOTTOM_START:
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devcb_call_write_line(&cdp1864->out_efx_func, ASSERT_LINE);
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cdp1864->efx_timer->adjust(cdp1864->screen->time_until_pos(CDP1864_SCANLINE_EFX_BOTTOM_END));
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break;
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case CDP1864_SCANLINE_EFX_BOTTOM_END:
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devcb_call_write_line(&cdp1864->out_efx_func, CLEAR_LINE);
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cdp1864->efx_timer->adjust(cdp1864->screen->time_until_pos(CDP1864_SCANLINE_EFX_TOP_START));
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break;
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}
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}
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/*-------------------------------------------------
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TIMER_CALLBACK( cdp1864_dma_tick )
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-------------------------------------------------*/
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static TIMER_CALLBACK( cdp1864_dma_tick )
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{
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device_t *device = (device_t *) ptr;
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cdp1864_t *cdp1864 = get_safe_token(device);
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int scanline = cdp1864->screen->vpos();
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if (cdp1864->dmaout)
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{
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if (cdp1864->disp)
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{
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if (scanline >= CDP1864_SCANLINE_DISPLAY_START && scanline < CDP1864_SCANLINE_DISPLAY_END)
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{
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devcb_call_write_line(&cdp1864->out_dmao_func, CLEAR_LINE);
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}
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}
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cdp1864->dma_timer->adjust(machine.firstcpu->cycles_to_attotime(CDP1864_CYCLES_DMA_WAIT));
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cdp1864->dmaout = 0;
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}
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else
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{
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if (cdp1864->disp)
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{
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if (scanline >= CDP1864_SCANLINE_DISPLAY_START && scanline < CDP1864_SCANLINE_DISPLAY_END)
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{
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devcb_call_write_line(&cdp1864->out_dmao_func, ASSERT_LINE);
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}
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}
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cdp1864->dma_timer->adjust(machine.firstcpu->cycles_to_attotime(CDP1864_CYCLES_DMA_ACTIVE));
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cdp1864->dmaout = 1;
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}
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}
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/*-------------------------------------------------
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cdp1864_init_palette - initialize palette
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-------------------------------------------------*/
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static void cdp1864_init_palette(device_t *device, const cdp1864_interface *intf)
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{
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int i;
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double res_total = intf->res_r + intf->res_g + intf->res_b + intf->res_bkg;
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int weight_r = (intf->res_r / res_total) * 100;
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int weight_g = (intf->res_g / res_total) * 100;
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int weight_b = (intf->res_b / res_total) * 100;
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int weight_bkg = (intf->res_bkg / res_total) * 100;
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for (i = 0; i < 16; i++)
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{
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int r, g, b, luma = 0;
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int luma = 0;
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luma += (i & 4) ? weight_r : 0;
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luma += (i & 1) ? weight_g : 0;
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@ -222,152 +145,214 @@ static void cdp1864_init_palette(device_t *device, const cdp1864_interface *intf
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luma = (luma * 0xff) / 100;
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r = (i & 4) ? luma : 0;
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g = (i & 1) ? luma : 0;
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b = (i & 2) ? luma : 0;
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int r = (i & 4) ? luma : 0;
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int g = (i & 1) ? luma : 0;
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int b = (i & 2) ? luma : 0;
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palette_set_color_rgb( device->machine(), i, r, g, b );
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palette_set_color_rgb(machine(), i, r, g, b);
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}
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}
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/*-------------------------------------------------
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cdp1864_aoe_w - audio output enable
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-------------------------------------------------*/
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WRITE_LINE_DEVICE_HANDLER( cdp1864_aoe_w )
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//**************************************************************************
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// LIVE DEVICE
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//**************************************************************************
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//-------------------------------------------------
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// cdp1864_device - constructor
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//-------------------------------------------------
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cdp1864_device::cdp1864_device(running_machine &_machine, const cdp1864_device_config &config)
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: device_t(_machine, config),
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device_sound_interface(_machine, config, *this),
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m_disp(0),
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m_dmaout(0),
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m_bgcolor(0),
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m_con(0),
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m_aoe(0),
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m_latch(CDP1864_DEFAULT_LATCH),
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m_config(config)
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{
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cdp1864_t *cdp1864 = get_safe_token(device);
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}
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if (!state)
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//-------------------------------------------------
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// device_start - device-specific startup
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//-------------------------------------------------
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void cdp1864_device::device_start()
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{
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// resolve callbacks
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devcb_resolve_read_line(&m_in_inlace_func, &m_config.m_in_inlace_func, this);
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devcb_resolve_read_line(&m_in_rdata_func, &m_config.m_in_rdata_func, this);
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devcb_resolve_read_line(&m_in_bdata_func, &m_config.m_in_bdata_func, this);
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devcb_resolve_read_line(&m_in_gdata_func, &m_config.m_in_gdata_func, this);
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devcb_resolve_write_line(&m_out_int_func, &m_config.m_out_int_func, this);
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devcb_resolve_write_line(&m_out_dmao_func, &m_config.m_out_dmao_func, this);
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devcb_resolve_write_line(&m_out_efx_func, &m_config.m_out_efx_func, this);
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devcb_resolve_write_line(&m_out_hsync_func, &m_config.m_out_hsync_func, this);
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// initialize palette
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initialize_palette();
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// create sound stream
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m_stream = machine().sound().stream_alloc(*this, 0, 1, machine().sample_rate());
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// allocate timers
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m_int_timer = timer_alloc(TIMER_INT);
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m_efx_timer = timer_alloc(TIMER_EFX);
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m_dma_timer = timer_alloc(TIMER_DMA);
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m_hsync_timer = timer_alloc(TIMER_HSYNC);
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// find devices
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m_cpu = machine().device<cpu_device>(m_config.m_cpu_tag);
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m_screen = machine().device<screen_device>(m_config.m_screen_tag);
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m_bitmap = auto_bitmap_alloc(machine(), m_screen->width(), m_screen->height(), m_screen->format());
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// register for state saving
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save_item(NAME(m_disp));
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save_item(NAME(m_dmaout));
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save_item(NAME(m_bgcolor));
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save_item(NAME(m_con));
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save_item(NAME(m_aoe));
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save_item(NAME(m_latch));
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save_item(NAME(m_signal));
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save_item(NAME(m_incr));
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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 cdp1864_device::device_reset()
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{
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m_int_timer->adjust(m_screen->time_until_pos(CDP1864_SCANLINE_INT_START, 0));
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m_efx_timer->adjust(m_screen->time_until_pos(CDP1864_SCANLINE_EFX_TOP_START, 0));
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m_dma_timer->adjust(m_cpu->cycles_to_attotime(CDP1864_CYCLES_DMA_START));
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m_disp = 0;
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m_dmaout = 0;
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devcb_call_write_line(&m_out_int_func, CLEAR_LINE);
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devcb_call_write_line(&m_out_dmao_func, CLEAR_LINE);
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devcb_call_write_line(&m_out_efx_func, CLEAR_LINE);
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}
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//-------------------------------------------------
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// device_timer - handle timer events
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//-------------------------------------------------
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void cdp1864_device::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
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{
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int scanline = m_screen->vpos();
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switch (id)
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{
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cdp1864->latch = CDP1864_DEFAULT_LATCH;
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}
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cdp1864->aoe = state;
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}
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/*-------------------------------------------------
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cdp1864_dispon_r - turn display on
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-------------------------------------------------*/
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READ8_DEVICE_HANDLER( cdp1864_dispon_r )
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{
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cdp1864_t *cdp1864 = get_safe_token(device);
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cdp1864->disp = 1;
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return 0xff;
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}
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/*-------------------------------------------------
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cdp1864_dispoff_r - turn display off
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-------------------------------------------------*/
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READ8_DEVICE_HANDLER( cdp1864_dispoff_r )
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{
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cdp1864_t *cdp1864 = get_safe_token(device);
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cdp1864->disp = 0;
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devcb_call_write_line(&cdp1864->out_int_func, CLEAR_LINE);
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devcb_call_write_line(&cdp1864->out_dmao_func, CLEAR_LINE);
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return 0xff;
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}
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/*-------------------------------------------------
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cdp1864_step_bgcolor_w - step background color
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-------------------------------------------------*/
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WRITE8_DEVICE_HANDLER( cdp1864_step_bgcolor_w )
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{
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cdp1864_t *cdp1864 = get_safe_token(device);
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cdp1864->disp = 1;
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if (++cdp1864->bgcolor > 3) cdp1864->bgcolor = 0;
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}
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/*-------------------------------------------------
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cdp1864_con_w - color on write
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-------------------------------------------------*/
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WRITE_LINE_DEVICE_HANDLER( cdp1864_con_w )
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{
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cdp1864_t *cdp1864 = get_safe_token(device);
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if (!state)
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{
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cdp1864->con = 0;
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}
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}
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/*-------------------------------------------------
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cdp1864_tone_latch_w - load tone latch
|
||||
-------------------------------------------------*/
|
||||
|
||||
WRITE8_DEVICE_HANDLER( cdp1864_tone_latch_w )
|
||||
{
|
||||
cdp1864_t *cdp1864 = get_safe_token(device);
|
||||
|
||||
cdp1864->latch = data;
|
||||
}
|
||||
|
||||
/*-------------------------------------------------
|
||||
cdp1864_dma_w - write DMA byte
|
||||
-------------------------------------------------*/
|
||||
|
||||
WRITE8_DEVICE_HANDLER( cdp1864_dma_w )
|
||||
{
|
||||
cdp1864_t *cdp1864 = get_safe_token(device);
|
||||
|
||||
int rdata = 1, bdata = 1, gdata = 1;
|
||||
int sx = cdp1864->screen->hpos() + 4;
|
||||
int y = cdp1864->screen->vpos();
|
||||
int x;
|
||||
|
||||
if (!cdp1864->con)
|
||||
{
|
||||
rdata = devcb_call_read_line(&cdp1864->in_rdata_func);
|
||||
bdata = devcb_call_read_line(&cdp1864->in_bdata_func);
|
||||
gdata = devcb_call_read_line(&cdp1864->in_gdata_func);
|
||||
}
|
||||
|
||||
for (x = 0; x < 8; x++)
|
||||
{
|
||||
int color = CDP1864_BACKGROUND_COLOR_SEQUENCE[cdp1864->bgcolor] + 8;
|
||||
|
||||
if (BIT(data, 7))
|
||||
case TIMER_INT:
|
||||
if (scanline == CDP1864_SCANLINE_INT_START)
|
||||
{
|
||||
color = (gdata << 2) | (bdata << 1) | rdata;
|
||||
if (m_disp)
|
||||
{
|
||||
devcb_call_write_line(&m_out_int_func, ASSERT_LINE);
|
||||
}
|
||||
|
||||
m_int_timer->adjust(m_screen->time_until_pos( CDP1864_SCANLINE_INT_END, 0));
|
||||
}
|
||||
else
|
||||
{
|
||||
if (m_disp)
|
||||
{
|
||||
devcb_call_write_line(&m_out_int_func, CLEAR_LINE);
|
||||
}
|
||||
|
||||
*BITMAP_ADDR16(cdp1864->bitmap, y, sx + x) = color;
|
||||
m_int_timer->adjust(m_screen->time_until_pos(CDP1864_SCANLINE_INT_START, 0));
|
||||
}
|
||||
break;
|
||||
|
||||
data <<= 1;
|
||||
case TIMER_EFX:
|
||||
switch (scanline)
|
||||
{
|
||||
case CDP1864_SCANLINE_EFX_TOP_START:
|
||||
devcb_call_write_line(&m_out_efx_func, ASSERT_LINE);
|
||||
m_efx_timer->adjust(m_screen->time_until_pos(CDP1864_SCANLINE_EFX_TOP_END, 0));
|
||||
break;
|
||||
|
||||
case CDP1864_SCANLINE_EFX_TOP_END:
|
||||
devcb_call_write_line(&m_out_efx_func, CLEAR_LINE);
|
||||
m_efx_timer->adjust(m_screen->time_until_pos(CDP1864_SCANLINE_EFX_BOTTOM_START, 0));
|
||||
break;
|
||||
|
||||
case CDP1864_SCANLINE_EFX_BOTTOM_START:
|
||||
devcb_call_write_line(&m_out_efx_func, ASSERT_LINE);
|
||||
m_efx_timer->adjust(m_screen->time_until_pos(CDP1864_SCANLINE_EFX_BOTTOM_END, 0));
|
||||
break;
|
||||
|
||||
case CDP1864_SCANLINE_EFX_BOTTOM_END:
|
||||
devcb_call_write_line(&m_out_efx_func, CLEAR_LINE);
|
||||
m_efx_timer->adjust(m_screen->time_until_pos(CDP1864_SCANLINE_EFX_TOP_START, 0));
|
||||
break;
|
||||
}
|
||||
break;
|
||||
|
||||
case TIMER_DMA:
|
||||
if (m_dmaout)
|
||||
{
|
||||
if (m_disp)
|
||||
{
|
||||
if (scanline >= CDP1864_SCANLINE_DISPLAY_START && scanline < CDP1864_SCANLINE_DISPLAY_END)
|
||||
{
|
||||
devcb_call_write_line(&m_out_dmao_func, CLEAR_LINE);
|
||||
}
|
||||
}
|
||||
|
||||
m_dma_timer->adjust(m_cpu->cycles_to_attotime(CDP1864_CYCLES_DMA_WAIT));
|
||||
|
||||
m_dmaout = 0;
|
||||
}
|
||||
else
|
||||
{
|
||||
if (m_disp)
|
||||
{
|
||||
if (scanline >= CDP1864_SCANLINE_DISPLAY_START && scanline < CDP1864_SCANLINE_DISPLAY_END)
|
||||
{
|
||||
devcb_call_write_line(&m_out_dmao_func, ASSERT_LINE);
|
||||
}
|
||||
}
|
||||
|
||||
m_dma_timer->adjust(m_cpu->cycles_to_attotime(CDP1864_CYCLES_DMA_ACTIVE));
|
||||
|
||||
m_dmaout = 1;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
/*-------------------------------------------------
|
||||
STREAM_UPDATE( cdp1864_stream_update )
|
||||
-------------------------------------------------*/
|
||||
|
||||
static STREAM_UPDATE( cdp1864_stream_update )
|
||||
//-------------------------------------------------
|
||||
// sound_stream_update - handle update requests for
|
||||
// our sound stream
|
||||
//-------------------------------------------------
|
||||
|
||||
void cdp1864_device::sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples)
|
||||
{
|
||||
cdp1864_t *cdp1864 = get_safe_token(device);
|
||||
// reset the output stream
|
||||
memset(outputs[0], 0, samples * sizeof(*outputs[0]));
|
||||
|
||||
INT16 signal = cdp1864->signal;
|
||||
INT16 signal = m_signal;
|
||||
stream_sample_t *buffer = outputs[0];
|
||||
|
||||
memset( buffer, 0, samples * sizeof(*buffer) );
|
||||
|
||||
if (cdp1864->aoe)
|
||||
if (m_aoe)
|
||||
{
|
||||
double frequency = cdp1864->cpu->unscaled_clock() / 8 / 4 / (cdp1864->latch + 1) / 2;
|
||||
int rate = device->machine().sample_rate() / 2;
|
||||
double frequency = m_cpu->unscaled_clock() / 8 / 4 / (m_latch + 1) / 2;
|
||||
int rate = machine().sample_rate() / 2;
|
||||
|
||||
/* get progress through wave */
|
||||
int incr = cdp1864->incr;
|
||||
int incr = m_incr;
|
||||
|
||||
if (signal < 0)
|
||||
{
|
||||
@ -390,132 +375,149 @@ static STREAM_UPDATE( cdp1864_stream_update )
|
||||
}
|
||||
|
||||
/* store progress through wave */
|
||||
cdp1864->incr = incr;
|
||||
cdp1864->signal = signal;
|
||||
m_incr = incr;
|
||||
m_signal = signal;
|
||||
}
|
||||
}
|
||||
|
||||
/*-------------------------------------------------
|
||||
cdp1864_update - update screen
|
||||
-------------------------------------------------*/
|
||||
|
||||
void cdp1864_update(device_t *device, bitmap_t *bitmap, const rectangle *cliprect)
|
||||
//-------------------------------------------------
|
||||
// dispon_r -
|
||||
//-------------------------------------------------
|
||||
|
||||
READ8_MEMBER( cdp1864_device::dispon_r )
|
||||
{
|
||||
cdp1864_t *cdp1864 = get_safe_token(device);
|
||||
m_disp = 1;
|
||||
|
||||
if (cdp1864->disp)
|
||||
return 0xff;
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------
|
||||
// dispoff_r -
|
||||
//-------------------------------------------------
|
||||
|
||||
READ8_MEMBER( cdp1864_device::dispoff_r )
|
||||
{
|
||||
m_disp = 0;
|
||||
|
||||
devcb_call_write_line(&m_out_int_func, CLEAR_LINE);
|
||||
devcb_call_write_line(&m_out_dmao_func, CLEAR_LINE);
|
||||
|
||||
return 0xff;
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------
|
||||
// step_bgcolor_w -
|
||||
//-------------------------------------------------
|
||||
|
||||
WRITE8_MEMBER( cdp1864_device::step_bgcolor_w )
|
||||
{
|
||||
m_disp = 1;
|
||||
|
||||
m_bgcolor++;
|
||||
|
||||
if (m_bgcolor > 3)
|
||||
{
|
||||
copybitmap(bitmap, cdp1864->bitmap, 0, 0, 0, 0, cliprect);
|
||||
bitmap_fill(cdp1864->bitmap, cliprect, CDP1864_BACKGROUND_COLOR_SEQUENCE[cdp1864->bgcolor] + 8);
|
||||
m_bgcolor = 0;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------
|
||||
// tone_latch_w -
|
||||
//-------------------------------------------------
|
||||
|
||||
WRITE8_MEMBER( cdp1864_device::tone_latch_w )
|
||||
{
|
||||
m_latch = data;
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------
|
||||
// dma_w -
|
||||
//-------------------------------------------------
|
||||
|
||||
WRITE8_MEMBER( cdp1864_device::dma_w )
|
||||
{
|
||||
int rdata = 1, bdata = 1, gdata = 1;
|
||||
int sx = m_screen->hpos() + 4;
|
||||
int y = m_screen->vpos();
|
||||
|
||||
if (!m_con)
|
||||
{
|
||||
rdata = devcb_call_read_line(&m_in_rdata_func);
|
||||
bdata = devcb_call_read_line(&m_in_bdata_func);
|
||||
gdata = devcb_call_read_line(&m_in_gdata_func);
|
||||
}
|
||||
|
||||
for (int x = 0; x < 8; x++)
|
||||
{
|
||||
int color = CDP1864_BACKGROUND_COLOR_SEQUENCE[m_bgcolor] + 8;
|
||||
|
||||
if (BIT(data, 7))
|
||||
{
|
||||
color = (gdata << 2) | (bdata << 1) | rdata;
|
||||
}
|
||||
|
||||
*BITMAP_ADDR16(m_bitmap, y, sx + x) = color;
|
||||
|
||||
data <<= 1;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------
|
||||
// con_w - color on write
|
||||
//-------------------------------------------------
|
||||
|
||||
WRITE_LINE_MEMBER( cdp1864_device::con_w )
|
||||
{
|
||||
if (!state)
|
||||
{
|
||||
m_con = 0;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------
|
||||
// aoe_w - audio output enable write
|
||||
//-------------------------------------------------
|
||||
|
||||
WRITE_LINE_MEMBER( cdp1864_device::aoe_w )
|
||||
{
|
||||
if (!state)
|
||||
{
|
||||
m_latch = CDP1864_DEFAULT_LATCH;
|
||||
}
|
||||
|
||||
m_aoe = state;
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------
|
||||
// evs_w - external vertical sync write
|
||||
//-------------------------------------------------
|
||||
|
||||
WRITE_LINE_MEMBER( cdp1864_device::evs_w )
|
||||
{
|
||||
}
|
||||
|
||||
|
||||
//-------------------------------------------------
|
||||
// update_screen -
|
||||
//-------------------------------------------------
|
||||
|
||||
void cdp1864_device::update_screen(bitmap_t *bitmap, const rectangle *cliprect)
|
||||
{
|
||||
if (m_disp)
|
||||
{
|
||||
copybitmap(bitmap, m_bitmap, 0, 0, 0, 0, cliprect);
|
||||
bitmap_fill(m_bitmap, cliprect, CDP1864_BACKGROUND_COLOR_SEQUENCE[m_bgcolor] + 8);
|
||||
}
|
||||
else
|
||||
{
|
||||
bitmap_fill(bitmap, cliprect, get_black_pen(device->machine()));
|
||||
bitmap_fill(bitmap, cliprect, get_black_pen(machine()));
|
||||
}
|
||||
}
|
||||
|
||||
/*-------------------------------------------------
|
||||
DEVICE_START( cdp1864 )
|
||||
-------------------------------------------------*/
|
||||
|
||||
static DEVICE_START( cdp1864 )
|
||||
{
|
||||
cdp1864_t *cdp1864 = get_safe_token(device);
|
||||
const cdp1864_interface *intf = (const cdp1864_interface *) device->baseconfig().static_config();
|
||||
|
||||
/* resolve callbacks */
|
||||
devcb_resolve_read_line(&cdp1864->in_rdata_func, &intf->in_rdata_func, device);
|
||||
devcb_resolve_read_line(&cdp1864->in_bdata_func, &intf->in_bdata_func, device);
|
||||
devcb_resolve_read_line(&cdp1864->in_gdata_func, &intf->in_gdata_func, device);
|
||||
devcb_resolve_write_line(&cdp1864->out_int_func, &intf->out_int_func, device);
|
||||
devcb_resolve_write_line(&cdp1864->out_dmao_func, &intf->out_dmao_func, device);
|
||||
devcb_resolve_write_line(&cdp1864->out_efx_func, &intf->out_efx_func, device);
|
||||
|
||||
/* get the cpu */
|
||||
cdp1864->cpu = device->machine().device(intf->cpu_tag);
|
||||
|
||||
/* get the screen device */
|
||||
cdp1864->screen = downcast<screen_device *>(device->machine().device(intf->screen_tag));
|
||||
assert(cdp1864->screen != NULL);
|
||||
|
||||
/* allocate the temporary bitmap */
|
||||
cdp1864->bitmap = auto_bitmap_alloc(device->machine(), cdp1864->screen->width(), cdp1864->screen->height(), cdp1864->screen->format());
|
||||
bitmap_fill(cdp1864->bitmap, 0, CDP1864_BACKGROUND_COLOR_SEQUENCE[cdp1864->bgcolor] + 8);
|
||||
|
||||
/* initialize the palette */
|
||||
cdp1864_init_palette(device, intf);
|
||||
|
||||
/* create sound stream */
|
||||
cdp1864->stream = device->machine().sound().stream_alloc(*device, 0, 1, device->machine().sample_rate(), cdp1864, cdp1864_stream_update);
|
||||
|
||||
/* create the timers */
|
||||
cdp1864->int_timer = device->machine().scheduler().timer_alloc(FUNC(cdp1864_int_tick), (void *)device);
|
||||
cdp1864->efx_timer = device->machine().scheduler().timer_alloc(FUNC(cdp1864_efx_tick), (void *)device);
|
||||
cdp1864->dma_timer = device->machine().scheduler().timer_alloc(FUNC(cdp1864_dma_tick), (void *)device);
|
||||
|
||||
/* register for state saving */
|
||||
device->save_item(NAME(cdp1864->disp));
|
||||
device->save_item(NAME(cdp1864->dmaout));
|
||||
device->save_item(NAME(cdp1864->bgcolor));
|
||||
device->save_item(NAME(cdp1864->con));
|
||||
|
||||
device->save_item(NAME(cdp1864->aoe));
|
||||
device->save_item(NAME(cdp1864->latch));
|
||||
device->save_item(NAME(cdp1864->signal));
|
||||
device->save_item(NAME(cdp1864->incr));
|
||||
|
||||
device->save_item(NAME(*cdp1864->bitmap));
|
||||
}
|
||||
|
||||
/*-------------------------------------------------
|
||||
DEVICE_RESET( cdp1864 )
|
||||
-------------------------------------------------*/
|
||||
|
||||
static DEVICE_RESET( cdp1864 )
|
||||
{
|
||||
cdp1864_t *cdp1864 = get_safe_token(device);
|
||||
|
||||
cdp1864->int_timer->adjust(cdp1864->screen->time_until_pos(CDP1864_SCANLINE_INT_START));
|
||||
cdp1864->efx_timer->adjust(cdp1864->screen->time_until_pos(CDP1864_SCANLINE_EFX_TOP_START));
|
||||
cdp1864->dma_timer->adjust(device->machine().firstcpu->cycles_to_attotime(CDP1864_CYCLES_DMA_START));
|
||||
|
||||
cdp1864->disp = 0;
|
||||
cdp1864->dmaout = 0;
|
||||
cdp1864->bgcolor = 0;
|
||||
cdp1864->con = 1;
|
||||
|
||||
devcb_call_write_line(&cdp1864->out_int_func, CLEAR_LINE);
|
||||
devcb_call_write_line(&cdp1864->out_dmao_func, CLEAR_LINE);
|
||||
devcb_call_write_line(&cdp1864->out_efx_func, CLEAR_LINE);
|
||||
|
||||
cdp1864_aoe_w(device, 0);
|
||||
}
|
||||
|
||||
/*-------------------------------------------------
|
||||
DEVICE_GET_INFO( cdp1864 )
|
||||
-------------------------------------------------*/
|
||||
|
||||
DEVICE_GET_INFO( cdp1864 )
|
||||
{
|
||||
switch (state)
|
||||
{
|
||||
/* --- the following bits of info are returned as 64-bit signed integers --- */
|
||||
case DEVINFO_INT_TOKEN_BYTES: info->i = sizeof(cdp1864_t); break;
|
||||
case DEVINFO_INT_INLINE_CONFIG_BYTES: info->i = 0; break;
|
||||
|
||||
/* --- the following bits of info are returned as pointers to data or functions --- */
|
||||
case DEVINFO_FCT_START: info->start = DEVICE_START_NAME(cdp1864); break;
|
||||
case DEVINFO_FCT_STOP: /* Nothing */ break;
|
||||
case DEVINFO_FCT_RESET: info->reset = DEVICE_RESET_NAME(cdp1864); break;
|
||||
|
||||
/* --- the following bits of info are returned as NULL-terminated strings --- */
|
||||
case DEVINFO_STR_NAME: strcpy(info->s, "RCA CDP1864"); break;
|
||||
case DEVINFO_STR_FAMILY: strcpy(info->s, "RCA CDP1800"); break;
|
||||
case DEVINFO_STR_VERSION: strcpy(info->s, "1.0"); break;
|
||||
case DEVINFO_STR_SOURCE_FILE: strcpy(info->s, __FILE__); break;
|
||||
case DEVINFO_STR_CREDITS: strcpy(info->s, "Copyright MESS Team"); break;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
DEFINE_LEGACY_SOUND_DEVICE(CDP1864, cdp1864);
|
||||
|
||||
@ -6,42 +6,45 @@
|
||||
Visit http://mamedev.org for licensing and usage restrictions.
|
||||
|
||||
**********************************************************************
|
||||
________________
|
||||
INLACE 1 ---| \/ |--- 40 Vdd
|
||||
CLK IN_ 2 ---| |--- 39 AUD
|
||||
CLR OUT_ 3 ---| |--- 38 CLR IN_
|
||||
AOE 4 ---| |--- 37 DMA0_
|
||||
SC1 5 ---| |--- 36 INT_
|
||||
SC0 6 ---| |--- 35 TPA
|
||||
MRD_ 7 ---| |--- 34 TPB
|
||||
BUS 7 8 ---| |--- 33 EVS
|
||||
BUS 6 9 ---| |--- 32 V SYNC
|
||||
BUS 5 10 ---| CDP1864C |--- 31 H SYNC
|
||||
BUS 4 11 ---| top view |--- 30 C SYNC_
|
||||
BUS 3 12 ---| |--- 29 RED
|
||||
BUS 2 13 ---| |--- 28 BLUE
|
||||
BUS 1 14 ---| |--- 27 GREEN
|
||||
BUS 0 15 ---| |--- 26 BCK GND_
|
||||
CON_ 16 ---| |--- 25 BURST
|
||||
N2 17 ---| |--- 24 ALT
|
||||
EF_ 18 ---| |--- 23 R DATA
|
||||
N0 19 ---| |--- 22 G DATA
|
||||
Vss 20 ---|________________|--- 21 B DATA
|
||||
_____ _____
|
||||
INLACE 1 |* \_/ | 40 Vdd
|
||||
CLK IN_ 2 | | 39 AUD
|
||||
CLR OUT_ 3 | | 38 CLR IN_
|
||||
AOE 4 | | 37 DMA0_
|
||||
SC1 5 | | 36 INT_
|
||||
SC0 6 | | 35 TPA
|
||||
MRD_ 7 | | 34 TPB
|
||||
BUS 7 8 | | 33 EVS
|
||||
BUS 6 9 | | 32 V SYNC
|
||||
BUS 5 10 | CDP1864 | 31 H SYNC
|
||||
BUS 4 11 | | 30 C SYNC_
|
||||
BUS 3 12 | | 29 RED
|
||||
BUS 2 13 | | 28 BLUE
|
||||
BUS 1 14 | | 27 GREEN
|
||||
BUS 0 15 | | 26 BCK GND_
|
||||
CON_ 16 | | 25 BURST
|
||||
N2 17 | | 24 ALT
|
||||
EF_ 18 | | 23 R DATA
|
||||
N0 19 | | 22 G DATA
|
||||
Vss 20 |_____________| 21 B DATA
|
||||
|
||||
|
||||
http://homepage.mac.com/ruske/cosmacelf/cdp1864.pdf
|
||||
|
||||
**********************************************************************/
|
||||
|
||||
#pragma once
|
||||
|
||||
#ifndef __CDP1864__
|
||||
#define __CDP1864__
|
||||
|
||||
#include "devlegcy.h"
|
||||
#include "emu.h"
|
||||
|
||||
|
||||
/***************************************************************************
|
||||
PARAMETERS
|
||||
***************************************************************************/
|
||||
|
||||
//**************************************************************************
|
||||
// MACROS / CONSTANTS
|
||||
//**************************************************************************
|
||||
|
||||
#define CDP1864_CLOCK XTAL_1_75MHz
|
||||
|
||||
@ -71,87 +74,170 @@
|
||||
#define CDP1864_SCANLINE_EFX_BOTTOM_START CDP1864_SCANLINE_DISPLAY_END - 4
|
||||
#define CDP1864_SCANLINE_EFX_BOTTOM_END CDP1864_SCANLINE_DISPLAY_END
|
||||
|
||||
/***************************************************************************
|
||||
MACROS / CONSTANTS
|
||||
***************************************************************************/
|
||||
|
||||
DECLARE_LEGACY_SOUND_DEVICE(CDP1864, cdp1864);
|
||||
|
||||
//**************************************************************************
|
||||
// INTERFACE CONFIGURATION MACROS
|
||||
//**************************************************************************
|
||||
|
||||
#define MCFG_CDP1864_ADD(_tag, _clock, _config) \
|
||||
MCFG_SOUND_ADD(_tag, CDP1864, _clock) \
|
||||
MCFG_DEVICE_CONFIG(_config)
|
||||
|
||||
|
||||
#define MCFG_CDP1864_SCREEN_ADD(_tag, _clock) \
|
||||
MCFG_SCREEN_ADD(_tag, RASTER) \
|
||||
MCFG_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16) \
|
||||
MCFG_SCREEN_RAW_PARAMS(_clock, CDP1864_SCREEN_WIDTH, CDP1864_HBLANK_END, CDP1864_HBLANK_START, CDP1864_TOTAL_SCANLINES, CDP1864_SCANLINE_VBLANK_END, CDP1864_SCANLINE_VBLANK_START)
|
||||
|
||||
|
||||
#define CDP1864_INTERFACE(name) \
|
||||
const cdp1864_interface (name) =
|
||||
|
||||
/***************************************************************************
|
||||
TYPE DEFINITIONS
|
||||
***************************************************************************/
|
||||
|
||||
enum _cdp1864_format {
|
||||
CDP1864_NON_INTERLACED = 0,
|
||||
CDP1864_INTERLACED
|
||||
};
|
||||
typedef enum _cdp1864_format cdp1864_format;
|
||||
#define CDP1864_NON_INTERLACED \
|
||||
DEVCB_LINE_VCC
|
||||
|
||||
typedef struct _cdp1864_interface cdp1864_interface;
|
||||
struct _cdp1864_interface
|
||||
|
||||
#define CDP1864_INTERLACED \
|
||||
DEVCB_LINE_GND
|
||||
|
||||
|
||||
|
||||
//**************************************************************************
|
||||
// TYPE DEFINITIONS
|
||||
//**************************************************************************
|
||||
|
||||
// ======================> cdp1864_interface
|
||||
|
||||
struct cdp1864_interface
|
||||
{
|
||||
const char *cpu_tag; /* cpu we are working with */
|
||||
const char *screen_tag; /* screen we are acting on */
|
||||
const char *m_cpu_tag;
|
||||
const char *m_screen_tag;
|
||||
|
||||
cdp1864_format interlace; /* interlace */
|
||||
devcb_read_line m_in_inlace_func;
|
||||
|
||||
devcb_read_line in_rdata_func;
|
||||
devcb_read_line in_bdata_func;
|
||||
devcb_read_line in_gdata_func;
|
||||
devcb_read_line m_in_rdata_func;
|
||||
devcb_read_line m_in_bdata_func;
|
||||
devcb_read_line m_in_gdata_func;
|
||||
|
||||
/* this gets called for every change of the INT pin (pin 36) */
|
||||
devcb_write_line out_int_func;
|
||||
devcb_write_line m_out_int_func;
|
||||
devcb_write_line m_out_dmao_func;
|
||||
devcb_write_line m_out_efx_func;
|
||||
devcb_write_line m_out_hsync_func;
|
||||
|
||||
/* this gets called for every change of the DMAO pin (pin 37) */
|
||||
devcb_write_line out_dmao_func;
|
||||
|
||||
/* this gets called for every change of the EFX pin (pin 18) */
|
||||
devcb_write_line out_efx_func;
|
||||
|
||||
double res_r; /* red output resistor value */
|
||||
double res_g; /* green output resistor value */
|
||||
double res_b; /* blue output resistor value */
|
||||
double res_bkg; /* background output resistor value */
|
||||
double m_res_r; // red output resistor value
|
||||
double m_res_g; // green output resistor value
|
||||
double m_res_b; // blue output resistor value
|
||||
double m_res_bkg; // background output resistor value
|
||||
};
|
||||
|
||||
/***************************************************************************
|
||||
PROTOTYPES
|
||||
***************************************************************************/
|
||||
|
||||
/* display on (0x69) */
|
||||
READ8_DEVICE_HANDLER( cdp1864_dispon_r ) ATTR_NONNULL(1);
|
||||
|
||||
/* display off (0x6c) */
|
||||
READ8_DEVICE_HANDLER( cdp1864_dispoff_r ) ATTR_NONNULL(1);
|
||||
// ======================> cdp1864_device_config
|
||||
|
||||
/* step background color (0x61) */
|
||||
WRITE8_DEVICE_HANDLER( cdp1864_step_bgcolor_w ) ATTR_NONNULL(1);
|
||||
class cdp1864_device_config : public device_config,
|
||||
public device_config_sound_interface,
|
||||
public cdp1864_interface
|
||||
{
|
||||
friend class cdp1864_device;
|
||||
|
||||
/* color on */
|
||||
WRITE_LINE_DEVICE_HANDLER( cdp1864_con_w ) ATTR_NONNULL(1);
|
||||
// construction/destruction
|
||||
cdp1864_device_config(const machine_config &mconfig, const char *tag, const device_config *owner, UINT32 clock);
|
||||
|
||||
/* load tone latch (0x64) */
|
||||
WRITE8_DEVICE_HANDLER( cdp1864_tone_latch_w ) ATTR_NONNULL(1);
|
||||
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;
|
||||
|
||||
/* audio output enable */
|
||||
WRITE_LINE_DEVICE_HANDLER( cdp1864_aoe_w ) ATTR_NONNULL(1);
|
||||
protected:
|
||||
// device_config overrides
|
||||
virtual void device_config_complete();
|
||||
};
|
||||
|
||||
|
||||
|
||||
// ======================> cdp1864_device
|
||||
|
||||
class cdp1864_device : public device_t,
|
||||
public device_sound_interface
|
||||
{
|
||||
friend class cdp1864_device_config;
|
||||
|
||||
// construction/destruction
|
||||
cdp1864_device(running_machine &_machine, const cdp1864_device_config &_config);
|
||||
|
||||
public:
|
||||
DECLARE_READ8_MEMBER( dispon_r );
|
||||
DECLARE_READ8_MEMBER( dispoff_r );
|
||||
|
||||
DECLARE_WRITE8_MEMBER( step_bgcolor_w );
|
||||
DECLARE_WRITE8_MEMBER( tone_latch_w );
|
||||
|
||||
DECLARE_WRITE8_MEMBER( dma_w );
|
||||
|
||||
DECLARE_WRITE_LINE_MEMBER( con_w );
|
||||
DECLARE_WRITE_LINE_MEMBER( aoe_w );
|
||||
DECLARE_WRITE_LINE_MEMBER( evs_w );
|
||||
|
||||
void update_screen(bitmap_t *bitmap, const rectangle *cliprect);
|
||||
|
||||
protected:
|
||||
// device-level overrides
|
||||
virtual void device_start();
|
||||
virtual void device_reset();
|
||||
virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
|
||||
|
||||
// internal callbacks
|
||||
virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples);
|
||||
|
||||
private:
|
||||
inline void initialize_palette();
|
||||
|
||||
static const device_timer_id TIMER_INT = 0;
|
||||
static const device_timer_id TIMER_EFX = 1;
|
||||
static const device_timer_id TIMER_DMA = 2;
|
||||
static const device_timer_id TIMER_HSYNC = 3;
|
||||
|
||||
devcb_resolved_read_line m_in_inlace_func;
|
||||
devcb_resolved_read_line m_in_rdata_func;
|
||||
devcb_resolved_read_line m_in_bdata_func;
|
||||
devcb_resolved_read_line m_in_gdata_func;
|
||||
devcb_resolved_write_line m_out_int_func;
|
||||
devcb_resolved_write_line m_out_dmao_func;
|
||||
devcb_resolved_write_line m_out_efx_func;
|
||||
devcb_resolved_write_line m_out_hsync_func;
|
||||
|
||||
cpu_device *m_cpu;
|
||||
screen_device *m_screen; // screen
|
||||
bitmap_t *m_bitmap; // bitmap
|
||||
sound_stream *m_stream; // sound output
|
||||
|
||||
// video state
|
||||
int m_disp; // display on
|
||||
int m_dmaout; // DMA request active
|
||||
int m_bgcolor; // background color
|
||||
int m_con; // color on
|
||||
|
||||
// sound state
|
||||
int m_aoe; // audio on
|
||||
int m_latch; // sound latch
|
||||
INT16 m_signal; // current signal
|
||||
int m_incr; // initial wave state
|
||||
|
||||
// timers
|
||||
emu_timer *m_int_timer;
|
||||
emu_timer *m_efx_timer;
|
||||
emu_timer *m_dma_timer;
|
||||
emu_timer *m_hsync_timer;
|
||||
|
||||
const cdp1864_device_config &m_config;
|
||||
};
|
||||
|
||||
|
||||
// device type definition
|
||||
extern const device_type CDP1864;
|
||||
|
||||
/* DMA write */
|
||||
WRITE8_DEVICE_HANDLER( cdp1864_dma_w ) ATTR_NONNULL(1);
|
||||
|
||||
/* screen update */
|
||||
void cdp1864_update(device_t *device, bitmap_t *bitmap, const rectangle *cliprect) ATTR_NONNULL(1) ATTR_NONNULL(2) ATTR_NONNULL(3);
|
||||
|
||||
#endif
|
||||
|
||||
Loading…
Reference in New Issue
Block a user