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r33153 Monday 3rd November, 2014 at 01:42:46 UTC by Barry Rodewald
amstrad: add CRTC Cursor signal to expansion bus, connected to PlayCity which now has working NMIs.

[src/emu/bus/cpc]	cpcexp.h playcity.c playcity.h
[src/mess/drivers]	amstrad.c

trunk/src/emu/bus/cpc/cpcexp.h

r241664	r241665
78	78
79	79	// reset
80	80	virtual void cpc_reset_w() { };
	81	virtual WRITE_LINE_MEMBER( cursor_w ) { };
81	82
82	83	void set_rom_bank(UINT8 sel) { m_rom_sel = sel; }  // tell device the currently selected ROM
83	84	UINT8 get_rom_bank() { return m_rom_sel; }
r241664	r241665
108	109	DECLARE_WRITE_LINE_MEMBER( romdis_w );
109	110
110	111	void set_rom_bank(UINT8 sel) { if(m_card) m_card->set_rom_bank(sel); }  // tell device the currently selected ROM
	112	DECLARE_WRITE_LINE_MEMBER( cursor_w ) { if(m_card) m_card->cursor_w(state); }  // pass on CRTC Cursor signal
111	113
112	114	protected:
113	115	// device-level overrides

trunk/src/emu/bus/cpc/playcity.c

r241664	r241665
6	6
7	7	TODO:
8	8	IRQs aren't working currently, the Z80CTC core requires the daisy chain setup to acknowledge IRQs properly, and that can't be used in a slot device currently.
9		Add CRTC Cursor signal support to the expansion bus, this should get NMIs working consistently.
10	9	*/
11	10
12	11	#include "playcity.h"

trunk/src/emu/bus/cpc/playcity.h

r241664	r241665
39	39	DECLARE_WRITE8_MEMBER(ymz2_data_w);
40	40	DECLARE_READ8_MEMBER(ymz1_data_r);
41	41	DECLARE_READ8_MEMBER(ymz2_data_r);
42		DECLARE_WRITE_LINE_MEMBER(ctc_zc1_cb) { if(state) { m_slot->nmi_w(1); m_slot->nmi_w(0); } printf("NMI %i",state); }
	42	DECLARE_WRITE_LINE_MEMBER(ctc_zc1_cb) { if(state) { m_slot->nmi_w(1); m_slot->nmi_w(0); } }
43	43	DECLARE_WRITE_LINE_MEMBER(ctc_intr_cb) { m_slot->irq_w(state); }
44	44
	45	virtual WRITE_LINE_MEMBER(cursor_w) { m_ctc->trg1(state); }
	46
45	47	protected:
46	48	// device-level overrides
47	49	virtual void device_start();

trunk/src/mess/drivers/amstrad.c

r241664	r241665
864	864	MCFG_MC6845_OUT_DE_CB(WRITELINE(amstrad_state, amstrad_de_changed))
865	865	MCFG_MC6845_OUT_HSYNC_CB(WRITELINE(amstrad_state, amstrad_hsync_changed))
866	866	MCFG_MC6845_OUT_VSYNC_CB(WRITELINE(amstrad_state, amstrad_vsync_changed))
	867	MCFG_MC6845_OUT_CUR_CB(DEVWRITELINE("exp", cpc_expansion_slot_device, cursor_w))
867	868
868	869	MCFG_VIDEO_START_OVERRIDE(amstrad_state,amstrad)
869	870

https://github.com/mamedev/mame/commit/0fc29aeb838f2eae2d58150fa620c6190991fd76

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