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in213ae: Small fixes

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- Add more RAM
- Screen rendering updates, chars are only 6 pixels wide
- Note debug tricks
This commit is contained in:
Dirk Best 2020-09-10 11:58:15 +02:00
parent d8a323ede5
commit 0b348dadc4
1 changed files with 27 additions and 16 deletions
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43
src/mame/drivers/informer_213ae.cpp
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@ -16,6 +16,10 @@
TODO:
- Figure out the ASIC and how it's connected
Notes:
- Debug tricks: "b@42=ff" after startup to show setup screen 1
"bp 81a1" then "b@42=ff" and "a=02" after the break to show screen 2
***************************************************************************/
#include "emu.h"
@ -71,6 +75,7 @@ private:
void informer_213ae_state::mem_map(address_map &map)
{
map(0x0000, 0x1fff).ram();
map(0x2000, 0x3fff).ram();
map(0x6000, 0x6fff).ram().share("vram");
map(0x7000, 0x7fff).ram().share("aram");
map(0x8000, 0xffff).rom().region("maincpu", 0);
@ -91,27 +96,33 @@ INPUT_PORTS_END
uint32_t informer_213ae_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect)
{
for (int y = 0; y < 51; y++)
for (int y = 0; y < 26; y++)
{
for (int x = 0; x < 80; x++)
{
uint8_t code = m_vram[y * 80 + x];
// uint8_t attr = m_aram[y * 80 + x];
// screen memory starts at 0x6820
uint8_t code = m_vram[26 * 80 + y * 80 + x];
// uint8_t attr = m_aram[26 * 80 + y * 80 + x];
// but status line is at top of vram
if (y > 23)
{
code = m_vram[(y - 24) * 80 + x];
// attr = m_aram[(y - 24) * 80 + x];
}
// draw 9 lines
for (int i = 0; i < 9; i++)
{
uint8_t data = m_chargen[0x2000 | ((code << 4) + i)];
// 8 pixels of the character
bitmap.pix32(y * 9 + i, x * 8 + 0) = BIT(data, 7) ? rgb_t::white() : rgb_t::black();
bitmap.pix32(y * 9 + i, x * 8 + 1) = BIT(data, 6) ? rgb_t::white() : rgb_t::black();
bitmap.pix32(y * 9 + i, x * 8 + 2) = BIT(data, 5) ? rgb_t::white() : rgb_t::black();
bitmap.pix32(y * 9 + i, x * 8 + 3) = BIT(data, 4) ? rgb_t::white() : rgb_t::black();
bitmap.pix32(y * 9 + i, x * 8 + 4) = BIT(data, 3) ? rgb_t::white() : rgb_t::black();
bitmap.pix32(y * 9 + i, x * 8 + 5) = BIT(data, 2) ? rgb_t::white() : rgb_t::black();
bitmap.pix32(y * 9 + i, x * 8 + 6) = BIT(data, 1) ? rgb_t::white() : rgb_t::black();
bitmap.pix32(y * 9 + i, x * 8 + 7) = BIT(data, 0) ? rgb_t::white() : rgb_t::black();
// 6 pixels of the character
bitmap.pix32(y * 9 + i, x * 6 + 0) = BIT(data, 7) ? rgb_t::white() : rgb_t::black();
bitmap.pix32(y * 9 + i, x * 6 + 1) = BIT(data, 6) ? rgb_t::white() : rgb_t::black();
bitmap.pix32(y * 9 + i, x * 6 + 2) = BIT(data, 5) ? rgb_t::white() : rgb_t::black();
bitmap.pix32(y * 9 + i, x * 6 + 3) = BIT(data, 4) ? rgb_t::white() : rgb_t::black();
bitmap.pix32(y * 9 + i, x * 6 + 4) = BIT(data, 3) ? rgb_t::white() : rgb_t::black();
bitmap.pix32(y * 9 + i, x * 6 + 5) = BIT(data, 2) ? rgb_t::white() : rgb_t::black();
}
}
}
@ -121,11 +132,11 @@ uint32_t informer_213ae_state::screen_update(screen_device &screen, bitmap_rgb32
static const gfx_layout char_layout =
{
8,9,
6,9,
RGN_FRAC(1,1),
1,
{ 0 },
{ 0, 1, 2, 3, 4, 5, 6, 7 },
{ 0, 1, 2, 3, 4, 5 },
{ 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8 },
8*16
};
@ -161,8 +172,8 @@ void informer_213ae_state::informer_213ae(machine_config &config)
// video
SCREEN(config, m_screen, SCREEN_TYPE_RASTER);
m_screen->set_color(rgb_t::green());
m_screen->set_size(640, 480);
m_screen->set_color(rgb_t::amber());
m_screen->set_size(480, 234);
m_screen->set_visarea_full();
m_screen->set_refresh_hz(60);
// m_screen->set_raw(18.432_MHz_XTAL, 0, 0, 0, 0, 0, 0);