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r23689 Thursday 13th June, 2013 at 23:44:32 UTC by Dirk Best
cs4031: fix 16-bit dma

[src/mess/machine]

cs4031.c cs4031.h

trunk/src/mess/machine/cs4031.c

r23688	r23689
386	386	return 0xff;
387	387
388	388	UINT16 result = m_space->read_word(page_offset() + (offset << 1));
389		m_dma_high_byte = result & 0xff00;
	389	m_dma_high_byte = result >> 8;
390	390
391		return result & 0xff;
	391	return result;
392	392	}
393	393
394	394	WRITE8_MEMBER( cs4031_device::dma_write_word )
r23688	r23689
396	396	if (m_dma_channel == -1)
397	397	return;
398	398
399		m_space->write_word(page_offset() + (offset << 1), m_dma_high_byte | data);
	399	m_space->write_word(page_offset() + (offset << 1), (m_dma_high_byte << 8) | data);
400	400	}
401	401
402	402	WRITE_LINE_MEMBER( cs4031_device::dma2_dack0_w )

trunk/src/mess/machine/cs4031.h

r23688	r23689
106	106	DECLARE_READ8_MEMBER( dma1_ior1_r ) { return m_read_ior(1); }
107	107	DECLARE_READ8_MEMBER( dma1_ior2_r ) { return m_read_ior(2); }
108	108	DECLARE_READ8_MEMBER( dma1_ior3_r ) { return m_read_ior(3); }
109		DECLARE_READ8_MEMBER( dma2_ior1_r ) { UINT16 result = m_read_ior(5); m_dma_high_byte = result & 0xff00; return result & 0xff; }
110		DECLARE_READ8_MEMBER( dma2_ior2_r ) { UINT16 result = m_read_ior(6); m_dma_high_byte = result & 0xff00; return result & 0xff; }
111		DECLARE_READ8_MEMBER( dma2_ior3_r ) { UINT16 result = m_read_ior(7); m_dma_high_byte = result & 0xff00; return result & 0xff; }
	109	DECLARE_READ8_MEMBER( dma2_ior1_r ) { UINT16 result = m_read_ior(5); m_dma_high_byte = result >> 8; return result; }
	110	DECLARE_READ8_MEMBER( dma2_ior2_r ) { UINT16 result = m_read_ior(6); m_dma_high_byte = result >> 8; return result; }
	111	DECLARE_READ8_MEMBER( dma2_ior3_r ) { UINT16 result = m_read_ior(7); m_dma_high_byte = result >> 8; return result; }
112	112	DECLARE_WRITE8_MEMBER( dma1_iow0_w ) { m_write_iow(0, data, 0xffff); }
113	113	DECLARE_WRITE8_MEMBER( dma1_iow1_w ) { m_write_iow(1, data, 0xffff); }
114	114	DECLARE_WRITE8_MEMBER( dma1_iow2_w ) { m_write_iow(2, data, 0xffff); }
115	115	DECLARE_WRITE8_MEMBER( dma1_iow3_w ) { m_write_iow(3, data, 0xffff); }
116		DECLARE_WRITE8_MEMBER( dma2_iow1_w ) { m_write_iow(5, m_dma_high_byte | data, 0xffff); }
117		DECLARE_WRITE8_MEMBER( dma2_iow2_w ) { m_write_iow(6, m_dma_high_byte | data, 0xffff); }
118		DECLARE_WRITE8_MEMBER( dma2_iow3_w ) { m_write_iow(7, m_dma_high_byte | data, 0xffff); }
	116	DECLARE_WRITE8_MEMBER( dma2_iow1_w ) { m_write_iow(5, (m_dma_high_byte << 8) | data, 0xffff); }
	117	DECLARE_WRITE8_MEMBER( dma2_iow2_w ) { m_write_iow(6, (m_dma_high_byte << 8) | data, 0xffff); }
	118	DECLARE_WRITE8_MEMBER( dma2_iow3_w ) { m_write_iow(7, (m_dma_high_byte << 8) | data, 0xffff); }
119	119	DECLARE_WRITE_LINE_MEMBER( dma1_dack0_w ) { set_dma_channel(0, state); }
120	120	DECLARE_WRITE_LINE_MEMBER( dma1_dack1_w ) { set_dma_channel(1, state); }
121	121	DECLARE_WRITE_LINE_MEMBER( dma1_dack2_w ) { set_dma_channel(2, state); }

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