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/**********************************************************************
p2000m.c
Functions to emulate video hardware of the p2000m
**********************************************************************/
#include "includes/p2000t.h"
VIDEO_START_MEMBER(p2000t_state,p2000m)
{
m_frame_count = 0;
}
UINT32 p2000t_state::screen_update_p2000m(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
UINT8 *videoram = m_videoram;
int offs, sx, sy, code, loop;
for (offs = 0; offs < 80 * 24; offs++)
{
sy = (offs / 80) * 20;
sx = (offs % 80) * 12;
if ((m_frame_count > 25) && (videoram[offs + 2048] & 0x40))
code = 32;
else
{
code = videoram[offs];
if ((videoram[offs + 2048] & 0x01) && (code & 0x20))
{
code += (code & 0x40) ? 64 : 96;
} else {
code &= 0x7f;
}
if (code < 32) code = 32;
}
drawgfxzoom_opaque (bitmap, cliprect, machine().gfx[0], code,
videoram[offs + 2048] & 0x08 ? 0 : 1, 0, 0, sx, sy, 0x20000, 0x20000);
if (videoram[offs] & 0x80)
{
for (loop = 0; loop < 12; loop++)
{
bitmap.pix16(sy + 18, sx + loop) = 0; /* cursor */
bitmap.pix16(sy + 19, sx + loop) = 0; /* cursor */
}
}
}
return 0;
}
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