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// license:BSD-3-Clause
// copyright-holders:Miodrag Milanovic
/***************************************************************************
PP-01 driver by Miodrag Milanovic
08/09/2008 Preliminary driver.
****************************************************************************/
#include "emu.h"
#include "includes/pp01.h"
uint32_t pp01_state::screen_update_pp01(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
uint8_t const *const ram = m_ram->pointer();
for (int y = 0; y < 256; y++)
{
for (int x = 0; x < 32; x++)
{
u16 t = ((y+m_video_scroll)&0xff)*32 + x;
uint8_t const code_r = ram[0x6000 + t];
uint8_t const code_g = ram[0xa000 + t];
uint8_t const code_b = ram[0xe000 + t];
for (int b = 0; b < 8; b++)
{
uint8_t const col = (BIT(code_r, b) << 2) | (BIT(code_g, b) << 1) | (BIT(code_b, b) << 0);
bitmap.pix(y, x*8+(7-b)) = col;
}
}
}
return 0;
}
static constexpr rgb_t pp01_pens[8] = {
{ 0x00, 0x00, 0x00 }, // 0
{ 0x00, 0x00, 0x80 }, // 1
{ 0x00, 0x80, 0x00 }, // 2
{ 0x00, 0x80, 0x80 }, // 3
{ 0x80, 0x00, 0x00 }, // 4
{ 0x80, 0x00, 0x80 }, // 5
{ 0x80, 0x80, 0x00 }, // 6
{ 0x80, 0x80, 0x80 } // 7
};
void pp01_state::pp01_palette(palette_device &palette) const
{
palette.set_pen_colors(0, pp01_pens);
}
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