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Diffstat (limited to 'src/mame/machine/namcos21_dsp_c67.h')
-rw-r--r--src/mame/machine/namcos21_dsp_c67.h147
1 files changed, 147 insertions, 0 deletions
diff --git a/src/mame/machine/namcos21_dsp_c67.h b/src/mame/machine/namcos21_dsp_c67.h
new file mode 100644
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--- /dev/null
+++ b/src/mame/machine/namcos21_dsp_c67.h
@@ -0,0 +1,147 @@
+// license:BSD-3-Clause
+// copyright-holders:David Haywood
+#ifndef MAME_VIDEO_NAMCOS21_DSP_C67_H
+#define MAME_VIDEO_NAMCOS21_DSP_C67_H
+
+#pragma once
+
+#include "machine/namco_c67.h"
+#include "video/namcos21_3d.h"
+
+#define PTRAM_SIZE 0x20000
+
+#define ENABLE_LOGGING 0
+
+class namcos21_dsp_c67_device : public device_t
+{
+public:
+ enum
+ { /* Namco System21 */
+ NAMCOS21_AIRCOMBAT = 0x4000,
+ NAMCOS21_STARBLADE,
+ NAMCOS21_CYBERSLED,
+ NAMCOS21_SOLVALOU,
+ };
+
+ namcos21_dsp_c67_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
+
+ // config
+ template <typename T> void set_renderer_tag(T &&tag) { m_renderer.set_tag(std::forward<T>(tag)); }
+ template <class Object> devcb_base &set_yield_hack_callback(Object &&cb) { return m_yield_hack_cb.set_callback(std::forward<Object>(cb)); }
+ auto yield_hack_callback() { return m_yield_hack_cb.bind(); }
+
+ void set_gametype(int gametype) { m_gametype = gametype; }
+
+ DECLARE_READ16_MEMBER(dspram16_r);
+ DECLARE_WRITE16_MEMBER(dspram16_hack_w);
+ DECLARE_WRITE16_MEMBER(dspram16_w);
+ DECLARE_WRITE16_MEMBER(pointram_control_w);
+ DECLARE_READ16_MEMBER(pointram_data_r);
+ DECLARE_WRITE16_MEMBER(pointram_data_w);
+ DECLARE_READ16_MEMBER(namcos21_depthcue_r);
+ DECLARE_WRITE16_MEMBER(namcos21_depthcue_w);
+
+ void reset_dsps(int state);
+ void reset_kickstart();
+
+protected:
+ // device-level overrides
+ virtual void device_start() override;
+ virtual void device_reset() override;
+
+ virtual void device_add_mconfig(machine_config &config) override;
+
+private:
+ #define DSP_BUF_MAX (4096*12)
+ struct dsp_state
+ {
+ unsigned masterSourceAddr;
+ uint16_t slaveInputBuffer[DSP_BUF_MAX];
+ unsigned slaveBytesAvailable;
+ unsigned slaveBytesAdvertised;
+ unsigned slaveInputStart;
+ uint16_t slaveOutputBuffer[DSP_BUF_MAX];
+ unsigned slaveOutputSize;
+ uint16_t masterDirectDrawBuffer[256];
+ unsigned masterDirectDrawSize;
+ int masterFinished;
+ int slaveActive;
+ };
+
+ required_device<namcos21_3d_device> m_renderer;
+ required_device<cpu_device> m_c67master;
+ required_device_array<cpu_device,4> m_c67slave;
+ required_region_ptr<int32_t> m_ptrom24;
+ std::vector<uint16_t> m_dspram16;
+
+ required_shared_ptr<uint16_t> m_master_dsp_ram;
+
+ int m_gametype; // hacks
+ devcb_write_line m_yield_hack_cb;
+
+ std::unique_ptr<dsp_state> m_mpDspState;
+
+ std::unique_ptr<uint8_t[]> m_pointram;
+ int m_pointram_idx;
+ uint16_t m_pointram_control;
+ uint32_t m_pointrom_idx;
+ uint8_t m_mPointRomMSB;
+ int m_mbPointRomDataAvailable;
+ uint8_t m_depthcue[2][0x400];
+ int m_irq_enable;
+
+ int m_mbNeedsKickstart;
+
+ int m_poly_frame_width;
+ int m_poly_frame_height;
+
+ int32_t read_pointrom_data(unsigned offset);
+ void transmit_word_to_slave(uint16_t data);
+ void transfer_dsp_data();
+ uint16_t read_word_from_slave_input();
+ uint16_t get_input_bytes_advertised_for_slave();
+ void render_slave_output(uint16_t data);
+
+ void namcos21_kickstart_hacks(int internal);
+
+ DECLARE_WRITE16_MEMBER(dspcuskey_w);
+ DECLARE_READ16_MEMBER(dspcuskey_r);
+ DECLARE_READ16_MEMBER(dsp_port0_r);
+ DECLARE_WRITE16_MEMBER(dsp_port0_w);
+ DECLARE_READ16_MEMBER(dsp_port1_r);
+ DECLARE_WRITE16_MEMBER(dsp_port1_w);
+ DECLARE_READ16_MEMBER(dsp_port2_r);
+ DECLARE_WRITE16_MEMBER(dsp_port2_w);
+ DECLARE_READ16_MEMBER(dsp_port3_idc_rcv_enable_r);
+ DECLARE_WRITE16_MEMBER(dsp_port3_w);
+ DECLARE_WRITE16_MEMBER(dsp_port4_w);
+ DECLARE_READ16_MEMBER(dsp_port8_r);
+ DECLARE_WRITE16_MEMBER(dsp_port8_w);
+ DECLARE_READ16_MEMBER(dsp_port9_r);
+ DECLARE_READ16_MEMBER(dsp_porta_r);
+ DECLARE_WRITE16_MEMBER(dsp_porta_w);
+ DECLARE_READ16_MEMBER(dsp_portb_r);
+ DECLARE_WRITE16_MEMBER(dsp_portb_w);
+ DECLARE_WRITE16_MEMBER(dsp_portc_w);
+ DECLARE_READ16_MEMBER(dsp_portf_r);
+ DECLARE_WRITE16_MEMBER(dsp_xf_w);
+ DECLARE_READ16_MEMBER(slave_port0_r);
+ DECLARE_WRITE16_MEMBER(slave_port0_w);
+ DECLARE_READ16_MEMBER(slave_port2_r);
+ DECLARE_READ16_MEMBER(slave_port3_r);
+ DECLARE_WRITE16_MEMBER(slave_port3_w);
+ DECLARE_WRITE16_MEMBER(slave_XF_output_w);
+ DECLARE_READ16_MEMBER(slave_portf_r);
+
+ void master_dsp_data(address_map &map);
+ void master_dsp_io(address_map &map);
+ void master_dsp_program(address_map &map);
+
+ void slave_dsp_data(address_map &map);
+ void slave_dsp_io(address_map &map);
+ void slave_dsp_program(address_map &map);
+};
+
+DECLARE_DEVICE_TYPE(NAMCOS21_DSP_C67, namcos21_dsp_c67_device)
+
+#endif // MAME_VIDEO_NAMCOS21_DSP_C67_H