Previous

199869 Revisions

Next

r20323 Friday 18th January, 2013 at 19:16:50 UTC by Wilbert Pol
(MESS) g7400: Better placement of ef934x graphics. Fixed X and Y overflows in the EF9340/1. (nw)

[src/emu/video]	ef9340_1.c i8244.h
[src/mess/drivers]	odyssey2.c

trunk/src/emu/video/i8244.h

r20322	r20323
105	105
106	106	// Global constants
107	107	static const int START_ACTIVE_SCAN = 42;
	108	static const int BORDER_SIZE       = 10;
108	109	static const int END_ACTIVE_SCAN   = 42 + 10 + 320 + 10;
109	110	static const int START_Y           = 1;
110	111	static const int SCREEN_HEIGHT     = 243;

trunk/src/emu/video/ef9340_1.c

r20322	r20323
100	100	void ef9340_1_device::ef9340_inc_c()
101	101	{
102	102	m_ef9340.X++;
103		if ( m_ef9340.X >= 40 )
	103	if ( m_ef9340.X == 40 || m_ef9340.X == 48 || m_ef9340.X == 56 || m_ef9340.X == 64 )
104	104	{
105		m_ef9340.Y = ( m_ef9340.Y + 1 ) % 24;
	105	m_ef9340.Y = ( m_ef9340.Y + 1 ) & 0x1f;
	106	if ( m_ef9340.Y == 24 )
	107	{
	108	m_ef9340.Y = 0;
	109	}
106	110	m_ef9340.X = 0;
107	111	}
108	112	}

trunk/src/mess/drivers/odyssey2.c

r20322	r20323
441	441	bitmap_ind16 *ef934x_bitmap = m_ef9340_1->get_bitmap();
442	442
443	443	// apply external LUM setting
	444	int x_real_start = i8244_device::START_ACTIVE_SCAN + i8244_device::BORDER_SIZE;
	445	int x_real_end = i8244_device::END_ACTIVE_SCAN - i8244_device::BORDER_SIZE;
444	446	for ( int x = i8244_device::START_ACTIVE_SCAN; x < i8244_device::END_ACTIVE_SCAN; x++ )
445	447	{
446	448	UINT16 d = bitmap->pix16( vpos, x );
447	449
448		if ( ! m_g7400_ic678_decode[ d & 0x07 ] )
	450	if ( ( ! m_g7400_ic678_decode[ d & 0x07 ] ) && x >= x_real_start && x < x_real_end )
449	451	{
450	452	// Use EF934x input
451		d = ef934x_bitmap->pix16( y, x - i8244_device::START_ACTIVE_SCAN ) & 0x07;
	453	d = ef934x_bitmap->pix16( y, x - x_real_start ) & 0x07;
452	454
453	455	if ( ! m_g7400_ic674_decode[ d & 0x07 ] )
454	456	{

Previous

199869 Revisions

Next

---

© 1997-2024 The MAME Team