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deecoseal: add display output and nvram

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This commit is contained in:
cracyc 2025-04-21 10:46:27 -05:00
parent 615951268a
commit fe6fedc390
1 changed files with 25 additions and 4 deletions
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29
src/mame/misc/deecoseal.cpp
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@ -10,10 +10,12 @@
#include "cpu/i86/i186.h"
#include "cpu/mcs51/mcs51.h"
#include "screen.h"
#include "emupal.h"
#include "video/upd7220.h"
#include "bus/rs232/rs232.h"
#include "machine/mc68681.h"
#include "machine/i2cmem.h"
#include "machine/nvram.h"
namespace {
@ -25,7 +27,9 @@ public:
m_maincpu(*this, "maincpu"),
m_mcs51(*this, "mcs51"),
m_crtc(*this, "crtc"),
m_duart(*this, "duart")
m_duart(*this, "duart"),
m_palette(*this, "palette"),
m_vram(*this, "vram")
{ }
void deecoseal(machine_config &config);
@ -36,6 +40,7 @@ private:
void io(address_map &map);
void mcs51_map(address_map &map);
void crtc_map(address_map &map);
UPD7220_DISPLAY_PIXELS_MEMBER(draw);
bool m_port0;
@ -43,6 +48,8 @@ private:
required_device<cpu_device> m_mcs51;
required_device<upd7220_device> m_crtc;
required_device<scn2681_device> m_duart;
required_device<palette_device> m_palette;
required_shared_ptr<u16> m_vram;
};
void deecoseal_state::machine_start()
@ -74,7 +81,7 @@ void deecoseal_state::machine_start()
void deecoseal_state::map(address_map &map)
{
map(0x00000, 0x0ffff).ram();
map(0x40000, 0x43fff).ram();
map(0x40000, 0x4ffff).ram().share("nvram");
map(0xf0000, 0xfffff).rom().region("bios", 0);
}
@ -92,7 +99,16 @@ void deecoseal_state::mcs51_map(address_map &map)
void deecoseal_state::crtc_map(address_map &map)
{
map(0x0000, 0x7fff).ram();
map(0x0000, 0x7fff).ram().share("vram");
}
UPD7220_DISPLAY_PIXELS_MEMBER( deecoseal_state::draw )
{
u16 const gfx = m_vram[address & 0x7fff];
pen_t const *const pen = m_palette->pens();
for(u16 i = 0; i < 16; i++)
bitmap.pix(y, x + i) = pen[BIT(gfx, i)];
}
void deecoseal_state::deecoseal(machine_config &config)
@ -106,13 +122,18 @@ void deecoseal_state::deecoseal(machine_config &config)
I2C_X2404P(config, "eeprom");
NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_1); // 2x 28c256
UPD7220(config, m_crtc, XTAL(16'257'000) / 2); // unknown clock
m_crtc->set_addrmap(AS_PROGRAM, &deecoseal_state::crtc_map);
m_crtc->set_screen("screen");
m_crtc->set_display_pixels(FUNC(deecoseal_state::draw));
PALETTE(config, m_palette, palette_device::MONOCHROME);
SCN2681(config, m_duart, XTAL(3'686'400)); // scn2692
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER));
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_LCD, rgb_t::amber));
screen.set_raw(XTAL(16'257'000), 848, 0, 640, 440, 0, 400);
screen.set_screen_update(m_crtc, FUNC(upd7220_device::screen_update));
}