homelab/homelab.cpp: Update Homelab2 / Aircomp 16 to working [linuxforum5, R. Belmont]

* Implemented text and graphics modes
* Fixed memory shadowing and I/O
* Fixed right shift keyboard code
* Fixed quickload and cassette loading
This commit is contained in:
arbee 2024-01-27 12:03:57 -05:00
parent 34c7771586
commit 05b623dbe7

View File

@ -1,11 +1,12 @@
// license:BSD-3-Clause
// copyright-holders:Miodrag Milanovic, Robbbert
// copyright-holders:linuxforum5, Miodrag Milanovic, Robbbert
/***************************************************************************
Homelab driver by Miodrag Milanovic
31/08/2008 Preliminary driver.
15/06/2012 Various updates [Robbbert]
27/01/2024 homelab2 now works, reorganized to better match current standards. [linuxforum5, R. Belmont]
The emulator called HoLa! works fine, but it is closed source.
You can get HoLa! at: http://gaia.atilia.eu
@ -46,56 +47,84 @@ MB7051 - fuse programmed prom.
#include "screen.h"
#include "speaker.h"
namespace {
namespace
{
class homelab_state : public driver_device
{
public:
homelab_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_bank1(*this, "bank1")
, m_p_chargen(*this, "chargen")
, m_speaker(*this, "speaker")
, m_cass(*this, "cassette")
, m_io_keyboard(*this, "X%d", 0)
{ }
: driver_device(mconfig, type, tag),
m_maincpu(*this, "maincpu"),
m_bank1(*this, "bank1"),
m_p_chargen(*this, "chargen"),
m_speaker(*this, "speaker"),
m_cass(*this, "cassette"),
m_io_keyboard(*this, "X%d", 0),
m_rows(0), m_cols(0)
{
}
protected:
DECLARE_QUICKLOAD_LOAD_MEMBER(quickload_cb);
u32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
std::unique_ptr<u8[]> m_vram;
u8 m_rows = 0U;
u8 m_cols = 0U;
required_device<cpu_device> m_maincpu;
required_memory_bank m_bank1;
required_region_ptr<u8> m_p_chargen;
required_device<speaker_sound_device> m_speaker;
required_device<cassette_image_device> m_cass;
required_ioport_array<16> m_io_keyboard;
std::unique_ptr<u8[]> m_vram;
u8 m_rows; // Character rows in screen
u8 m_cols;
};
class homelab2_state : public homelab_state
{
public:
using homelab_state::homelab_state;
homelab2_state(const machine_config &mconfig, device_type type, const char *tag)
: homelab_state(mconfig, type, tag),
m_nmi(0),
m_screenshadow_is_text_mode(true),
m_screenshadowY0(0),
m_screenshadowX0(0),
m_spr_bit(0)
{
std::fill_n(m_4000shadow, 0x4000, 0);
std::fill_n(m_screenshadow, 40 * 265, 0);
}
void homelab2(machine_config &config);
protected:
virtual void machine_start() override;
u32 screen2_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
private:
INTERRUPT_GEN_MEMBER(homelab_frame);
void homelab2_mem(address_map &map);
u8 cass2_r();
bool m_nmi = 0;
bool m_spr_bit = 0;
u8 mem3800_r();
u8 mem3a00_r(offs_t);
void mem3c00_w(offs_t, u8);
void mem3e00_w(offs_t, u8);
void mem3800_w(offs_t offset, u8 data);
u8 mem3a00_r(offs_t offset);
void mem3c00_w(offs_t, u8 data);
u8 mem3e00_r(offs_t offset);
void mem3e00_w(offs_t, u8 data);
u8 mem4000_r(offs_t offset);
void mem4000_w(offs_t, u8 data);
u8 memE000_r(offs_t offset);
void memE000_w(offs_t, u8 data);
bool m_nmi;
u8 m_4000shadow[0x4000]; // Shadow for 0x4000-0x7FFF
u8 m_screenshadow[40 * 265]; // Maximum screen size is 320x255 (1 bit = 1 pixel). CPU controls hardware to generate video signal.
bool m_screenshadow_is_text_mode; // If true, the data source for video generator is from C000. If false, the data source is from 0x6000. This memory contetn addressable from 0xE000
int32_t m_screenshadowY0; // The current generated screen x byte position
int32_t m_screenshadowX0; // Screen row position
bool m_spr_bit;
};
class homelab3_state : public homelab_state
@ -114,59 +143,173 @@ protected:
private:
u8 exxx_r(offs_t offset);
std::unique_ptr<u8[]> m_ram;
void port7f_w(u8 data);
void portff_w(u8 data);
void homelab3_io(address_map &map);
void homelab3_mem(address_map &map);
void brailab4_io(address_map &map);
void brailab4_mem(address_map &map);
};
std::unique_ptr<u8[]> m_ram;
};
INTERRUPT_GEN_MEMBER(homelab2_state::homelab_frame)
{
if (m_nmi)
{
m_maincpu->set_input_line(INPUT_LINE_NMI, ASSERT_LINE);
}
}
u32 homelab2_state::screen2_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
if (!m_cols)
{
return 1;
}
int screenHeight = (m_screenshadowY0 > 200) ? m_screenshadowY0 : 200;
screen.set_visarea(0, 319, 0, screenHeight - 1);
for (int y = 0; y < screenHeight; y++)
{
u16 *p = &bitmap.pix(y); // Row first pixel pointer in viewable screen in screen_y. line
for (int x = 0; x < 40; x++)
{
if (y < m_screenshadowY0)
{
u8 const gfx = m_screenshadow[y * 40 + x];
*p++ = BIT(gfx, 7);
*p++ = BIT(gfx, 6);
*p++ = BIT(gfx, 5);
*p++ = BIT(gfx, 4);
*p++ = BIT(gfx, 3);
*p++ = BIT(gfx, 2);
*p++ = BIT(gfx, 1);
*p++ = BIT(gfx, 0);
}
else
{
*p++ = 0;
*p++ = 0;
*p++ = 0;
*p++ = 0;
*p++ = 0;
*p++ = 0;
*p++ = 0;
*p++ = 0;
}
}
}
m_screenshadowY0 = 0;
m_screenshadowX0 = 0;
return 0;
}
u8 homelab2_state::mem3800_r()
{
return m_io_keyboard[15]->read(); // reset key
return m_io_keyboard[15]->read(); // reset key
}
void homelab2_state::mem3800_w(offs_t offset, u8 data)
{ // Set screen generator hardware to graphics mode
if (offset == 0x3939 - 0x3800)
{
m_screenshadow_is_text_mode = false;
}
}
u8 homelab2_state::mem3a00_r(offs_t offset)
{
u8 data = 0xff;
for (u8 i=0; i<8; i++)
for (u8 i = 0; i < 8; i++)
{
if (!BIT(offset, i))
{
data &= m_io_keyboard[i]->read();
}
}
return data;
}
u8 homelab2_state::cass2_r()
{
return (m_cass->input() > 0.03) ? 0xff : 0;
}
void homelab2_state::mem3c00_w(offs_t offset, u8 data)
{
m_spr_bit ^= 1;
m_speaker->level_w(m_spr_bit? -1.0 : +1.0);
m_speaker->level_w(m_spr_bit ? -1.0 : +1.0);
m_cass->output(m_spr_bit ? -1.0 : +1.0);
}
u8 homelab2_state::memE000_r(offs_t offset)
{
if (m_nmi)
{ // NMI enabled, screen generator
u8 gfx;
if (m_screenshadow_is_text_mode)
{
const int vramRelIndex0 = offset % 0x400; // Character address in video ram First character in 0x001
const int row8_index0 = (offset - 1) / 0x400; // Row index in char [0-7]
u8 const chr = m_vram[vramRelIndex0]; // get char in videoram
gfx = m_p_chargen[chr | (row8_index0 << 8)]; // get dot pattern in chargen
}
else
{
gfx = m_4000shadow[0x2000 + offset]; // get dot pixels in GRAPH RAM
}
m_screenshadow[40 * m_screenshadowY0 + m_screenshadowX0++] = gfx;
if (m_screenshadowX0 == 40)
{
m_screenshadowX0 = 0;
m_screenshadowY0++;
return (m_screenshadow_is_text_mode) ? 0xff : 0xf7; // RST38 : RST 30
}
else
{
return 0x7f; // LD A,A
}
}
else
{ // NMI disable, serial input
return cass2_r();
}
}
u8 homelab2_state::mem4000_r(offs_t offset)
{
return m_4000shadow[offset];
}
void homelab2_state::mem4000_w(offs_t offset, u8 data)
{
m_4000shadow[offset] = data;
}
u8 homelab2_state::mem3e00_r(offs_t offset)
{
return 0;
}
/**
* NMI on: LD (3E3E), 0
* NMI off: LD (3F3F), AL értéke
*/
void homelab2_state::mem3e00_w(offs_t offset, u8 data)
{
if (BIT(offset, 8))
{
if (offset == 0x3f3f - 0x3e00)
{ // 3F3F
m_screenshadow_is_text_mode = true;
m_maincpu->set_input_line(INPUT_LINE_NMI, CLEAR_LINE);
m_nmi = true;
}
else
if (offset == 0x003e)
{ // 3E3E
m_nmi = false;
}
u8 homelab2_state::cass2_r()
{
return (m_cass->input() > 0.03) ? 0x37 : 0;
}
}
void homelab3_state::machine_reset()
@ -189,54 +332,60 @@ int homelab3_state::cass3_r()
return (m_cass->input() > 0.03);
}
u8 homelab3_state::exxx_r(offs_t offset)
{
// keys E800-E813 but E810-E813 are not connected
// cassin E883
// speaker/cass toggle E880, E802
// keys E800-E813 but E810-E813 are not connected
// cassin E883
// speaker/cass toggle E880, E802
if (offset == 0x83)
return (m_cass->input() > 0.03);
else
if (offset == 0x80)
{
m_speaker->level_w(0);
m_cass->output(-1.0);
return (m_cass->input() > 0.03);
}
else
if (offset == 0x02)
{
m_speaker->level_w(1);
m_cass->output(+1.0);
if (offset == 0x80)
{
m_speaker->level_w(0);
m_cass->output(-1.0);
}
else
{
if (offset == 0x02)
{
m_speaker->level_w(1);
m_cass->output(+1.0);
}
}
}
u8 data = 0xff;
if (offset < 0x10)
{
data = m_io_keyboard[offset]->read();
}
return data;
}
/* Address maps */
void homelab2_state::homelab2_mem(address_map &map)
{
map(0x0000, 0x07ff).rom(); // ROM 1
map(0x0800, 0x0fff).rom(); // ROM 2
map(0x1000, 0x17ff).rom(); // ROM 3
map(0x1800, 0x1fff).rom(); // ROM 4
map(0x2000, 0x27ff).rom(); // ROM 5
map(0x2800, 0x2fff).rom(); // ROM 6
map(0x3000, 0x37ff).rom(); // Empty
map(0x3800, 0x39ff).r(FUNC(homelab2_state::mem3800_r));
map(0x0000, 0x07ff).rom(); // ROM 1
map(0x0800, 0x0fff).rom(); // ROM 2
map(0x1000, 0x17ff).rom(); // ROM 3
map(0x1800, 0x1fff).rom(); // ROM 4
map(0x2000, 0x27ff).rom(); // ROM 5
map(0x2800, 0x2fff).rom(); // ROM 6
map(0x3000, 0x37ff).rom(); // Empty
map(0x3800, 0x39ff).rw(FUNC(homelab2_state::mem3800_r), FUNC(homelab2_state::mem3800_w));
map(0x3a00, 0x3bff).r(FUNC(homelab2_state::mem3a00_r));
map(0x3c00, 0x3dff).w(FUNC(homelab2_state::mem3c00_w));
map(0x3e00, 0x3fff).w(FUNC(homelab2_state::mem3e00_w));
map(0x4000, 0x7fff).ram();
map(0x3e00, 0x3fff).rw(FUNC(homelab2_state::mem3e00_r), FUNC(homelab2_state::mem3e00_w));
map(0x4000, 0x7fff).rw(FUNC(homelab2_state::mem4000_r), FUNC(homelab2_state::mem4000_w));
map(0xc000, 0xc3ff).mirror(0xc00).bankrw(m_bank1);
map(0xe000, 0xffff).r(FUNC(homelab2_state::cass2_r));
map(0xE000, 0xFFFF).r(FUNC(homelab2_state::memE000_r));
}
void homelab3_state::homelab3_mem(address_map &map)
@ -269,14 +418,12 @@ void homelab3_state::brailab4_io(address_map &map)
map(0xf8, 0xf9).rw("mea8000", FUNC(mea8000_device::read), FUNC(mea8000_device::write));
}
/* Input ports */
static INPUT_PORTS_START( homelab2 )
static INPUT_PORTS_START(homelab2)
PORT_START("X0")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Left Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Right Shift") PORT_CODE(KEYCODE_RSHIFT)
PORT_BIT(0xfc, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Left Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Right Shift") PORT_CODE(KEYCODE_RSHIFT)
PORT_BIT(0xDE, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_START("X1")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Space") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
@ -367,7 +514,7 @@ static INPUT_PORTS_START( homelab2 )
PORT_BIT(0xFE, IP_ACTIVE_HIGH, IPT_UNUSED)
INPUT_PORTS_END
static INPUT_PORTS_START( homelab3 ) // F4 to F8 are foreign characters
static INPUT_PORTS_START(homelab3) // F4 to F8 are foreign characters
PORT_START("X0")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Down") PORT_CODE(KEYCODE_DOWN)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Up") PORT_CODE(KEYCODE_UP)
@ -379,18 +526,18 @@ static INPUT_PORTS_START( homelab3 ) // F4 to F8 are foreign characters
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Space") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Enter") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED) // A
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) // D
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) // D
PORT_BIT(0xf0, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_START("X2")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_CUSTOM) PORT_VBLANK("screen")
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Left Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_CUSTOM) PORT_VBLANK("screen")
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Left Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Right Shift") PORT_CODE(KEYCODE_RSHIFT)
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ALT") PORT_CODE(KEYCODE_CAPSLOCK)
PORT_BIT(0xf0, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_START("X3")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_READ_LINE_MEMBER(homelab3_state, cass3_r)
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_CUSTOM) PORT_READ_LINE_MEMBER(homelab3_state, cass3_r)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F2") PORT_CODE(KEYCODE_F2)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F1") PORT_CODE(KEYCODE_F1)
PORT_BIT(0xf8, IP_ACTIVE_LOW, IPT_UNUSED)
@ -480,7 +627,7 @@ static INPUT_PORTS_START( homelab3 ) // F4 to F8 are foreign characters
PORT_BIT(0xf0, IP_ACTIVE_LOW, IPT_UNUSED)
INPUT_PORTS_END
static INPUT_PORTS_START( brailab4 ) // F4 to F8 are foreign characters
static INPUT_PORTS_START(brailab4) // F4 to F8 are foreign characters
PORT_START("X0")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR('+')
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Up") PORT_CODE(KEYCODE_UP)
@ -492,18 +639,18 @@ static INPUT_PORTS_START( brailab4 ) // F4 to F8 are foreign characters
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Space") PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ')
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Enter") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_UNUSED) // A
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) // D
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED) // D
PORT_BIT(0xf0, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_START("X2")
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_CUSTOM) PORT_VBLANK("screen")
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Left Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_CUSTOM) PORT_VBLANK("screen")
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Left Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Right Shift") PORT_CODE(KEYCODE_RSHIFT)
PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("ALT") PORT_CODE(KEYCODE_CAPSLOCK)
PORT_BIT(0xf0, IP_ACTIVE_LOW, IPT_UNUSED)
PORT_START("X3")
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_CUSTOM ) PORT_READ_LINE_MEMBER(homelab3_state, cass3_r)
PORT_BIT(0x01, IP_ACTIVE_HIGH, IPT_CUSTOM) PORT_READ_LINE_MEMBER(homelab3_state, cass3_r)
PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F2") PORT_CODE(KEYCODE_F2)
PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("F1") PORT_CODE(KEYCODE_F1)
PORT_BIT(0xf8, IP_ACTIVE_LOW, IPT_UNUSED)
@ -596,13 +743,20 @@ INPUT_PORTS_END
void homelab2_state::machine_start()
{
save_item(NAME(m_nmi));
save_item(NAME(m_spr_bit));
save_item(NAME(m_rows));
save_item(NAME(m_cols));
save_item(NAME(m_4000shadow));
save_item(NAME(m_screenshadow));
save_item(NAME(m_screenshadow_is_text_mode));
save_item(NAME(m_screenshadowX0));
save_item(NAME(m_screenshadowY0));
save_item(NAME(m_spr_bit));
m_vram = make_unique_clear<u8[]>(0x800);
save_pointer(NAME(m_vram), 0x800);
m_bank1->configure_entry(0, m_vram.get());
m_bank1->set_entry(0);
m_rows = 25;
m_cols = 40;
m_nmi = 0;
@ -626,20 +780,20 @@ void homelab3_state::machine_start()
u32 homelab_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect)
{
if (!m_cols)
{
return 1;
}
u16 sy=0,ma=0;
u16 sy = 0, ma = 0;
for (u8 y = 0; y < m_rows; y++)
{
for (u8 ra = 0; ra < 8; ra++)
{
u16 *p = &bitmap.pix(sy++);
for (u16 x = ma; x < ma + m_cols; x++)
{
u8 const chr = m_vram[x]; // get char in videoram
u8 const gfx = m_p_chargen[chr | (ra<<8)]; // get dot pattern in chargen
u8 const chr = m_vram[x]; // get char in videoram
u8 const gfx = m_p_chargen[chr | (ra << 8)]; // get dot pattern in chargen
/* Display a scanline of a character */
*p++ = BIT(gfx, 7);
@ -652,80 +806,94 @@ u32 homelab_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, co
*p++ = BIT(gfx, 0);
}
}
ma+=m_cols;
ma += m_cols;
}
return 0;
}
/* F4 Character Displayer */
static const gfx_layout charlayout =
{
8, 8, /* 8 x 8 characters */
256, /* 256 characters */
1, /* 1 bits per pixel */
{ 0 }, /* no bitplanes */
8, 8, /* 8 x 8 characters */
256, /* 256 characters */
1, /* 1 bits per pixel */
{0}, /* no bitplanes */
/* x offsets */
{ 0, 1, 2, 3, 4, 5, 6, 7 },
{0, 1, 2, 3, 4, 5, 6, 7},
/* y offsets */
{ 0, 1*256*8, 2*256*8, 3*256*8, 4*256*8, 5*256*8, 6*256*8, 7*256*8 },
8 /* every char takes 8 x 1 bytes */
{0, 1 * 256 * 8, 2 * 256 * 8, 3 * 256 * 8, 4 * 256 * 8, 5 * 256 * 8, 6 * 256 * 8, 7 * 256 * 8},
8 /* every char takes 8 x 1 bytes */
};
static GFXDECODE_START( gfx_homelab )
GFXDECODE_ENTRY( "chargen", 0x0000, charlayout, 0, 1 )
static GFXDECODE_START(gfx_homelab)
GFXDECODE_ENTRY("chargen", 0x0000, charlayout, 0, 1)
GFXDECODE_END
QUICKLOAD_LOAD_MEMBER(homelab_state::quickload_cb)
QUICKLOAD_LOAD_MEMBER(homelab_state::quickload_cb)
{
address_space &space = m_maincpu->space(AS_PROGRAM);
int i=0;
int block_counter = 0;
char block_last_character = 1;
char pgmname[256];
u16 args[2];
image.fseek(0x100, SEEK_SET);
u8 ch = 0;
u32 bytes = image.fread(&ch, 1);
if (bytes != 1 || ch != 0xA5)
return std::make_pair(image_error::INVALIDIMAGE, "Invalid header");
image.fseek(0, SEEK_SET);
while ((bytes = image.fread(&ch, 1)) != 0 && ch != 0)
while (block_last_character != 0)
{
if (i >= (std::size(pgmname) - 1))
return std::make_pair(image_error::INVALIDIMAGE, "File name too long");
u8 ch = 0;
u32 bytes = 0;
// image.message treats characters with bit 7 as nulls, so replace with question mark
pgmname[i] = BIT(ch, 7) ? 0x3f : ch; // build program description
i++;
}
pgmname[i] = '\0'; /* terminate string with a null */
if (image.fread(args, sizeof(args)) != sizeof(args))
return std::make_pair(image_error::UNSPECIFIED, "Unexpected EOF while getting file size");
u16 quick_addr = little_endianize_int16(args[0]);
u16 quick_length = little_endianize_int16(args[1]);
u16 quick_end = quick_addr+quick_length-1;
if (quick_end > 0x7fff)
return std::make_pair(image_error::INVALIDLENGTH, "File too large");
/* display a message about the loaded quickload */
image.message(" %s\nsize=%04X : start=%04X : end=%04X",pgmname,quick_length,quick_addr,quick_end);
for (i = 0; i < quick_length; i++)
{
unsigned j = (quick_addr + i);
if (image.fread(&ch, 1) != 1)
block_counter++;
// Read leading zeros
while (((bytes = image.fread(&ch, 1)) != 0) && (ch == 0))
{
return std::make_pair(
image_error::UNSPECIFIED,
util::string_format("%s: Unexpected EOF while writing byte to %04X", pgmname, j));
}
space.write_byte(j, ch);
}
if (bytes != 1 || ch != 0xA5)
return std::make_pair(image_error::INVALIDIMAGE, "Invalid header");
int i = 0;
while ((bytes = image.fread(&ch, 1)) != 0 && (ch != 0))
{
if (i >= (std::size(pgmname) - 1))
{
return std::make_pair(image_error::INVALIDIMAGE, "File name too long");
}
// image.message treats characters with bit 7 as nulls, so replace with question mark
pgmname[i] = BIT(ch, 7) ? 0x3f : ch; // build program description
i++;
}
pgmname[i] = '\0'; /* terminate string with a null */
if (image.fread(args, sizeof(args)) != sizeof(args))
{
return std::make_pair(image_error::UNSPECIFIED, "Unexpected EOF while getting file size");
}
const u16 quick_addr = little_endianize_int16(args[0]);
const u16 quick_length = little_endianize_int16(args[1]);
const u16 quick_end = quick_addr + quick_length - 1;
if (quick_end > 0x7fff)
{
return std::make_pair(image_error::INVALIDLENGTH, "File too large");
}
for (int i = 0; i < quick_length; i++)
{
unsigned j = (quick_addr + i);
if (image.fread(&ch, 1) != 1)
{
return std::make_pair(image_error::UNSPECIFIED, util::string_format("%s: Unexpected EOF while writing byte to %04X", pgmname, j));
}
space.write_byte(j, ch);
}
image.fread(&ch, 1); // Read crc
image.fread(&block_last_character, 1);
/* display a message about the loaded quickload */
image.message(" %s\nsize=%04X : start=%04X : end=%04X : block_counter=%d", pgmname, quick_length, quick_addr, quick_end, block_counter);
}
return std::make_pair(std::error_condition(), std::string());
}
@ -733,17 +901,17 @@ QUICKLOAD_LOAD_MEMBER(homelab_state::quickload_cb)
void homelab2_state::homelab2(machine_config &config)
{
/* basic machine hardware */
Z80(config, m_maincpu, XTAL(8'000'000) / 2);
Z80(config, m_maincpu, XTAL(8'000'000) / 2); // 4mhz
m_maincpu->set_addrmap(AS_PROGRAM, &homelab2_state::homelab2_mem);
m_maincpu->set_vblank_int("screen", FUNC(homelab2_state::homelab_frame));
/* video hardware */
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER, rgb_t::green()));
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER, rgb_t::white())); // green
screen.set_refresh_hz(50);
screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500));
screen.set_size(40*8, 25*8);
screen.set_visarea(0, 40*8-1, 0, 25*8-1);
screen.set_screen_update(FUNC(homelab2_state::screen_update));
screen.set_size(320, 255);
screen.set_visarea(0, 40 * 8 - 1, 0, 25 * 8 - 1);
screen.set_screen_update(FUNC(homelab2_state::screen2_update));
screen.set_palette("palette");
GFXDECODE(config, "gfxdecode", "palette", gfx_homelab);
@ -770,8 +938,8 @@ void homelab3_state::homelab3(machine_config &config)
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_RASTER, rgb_t::green()));
screen.set_refresh_hz(50);
screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500));
screen.set_size(64*8, 32*8);
screen.set_visarea(0, 64*8-1, 0, 32*8-1);
screen.set_size(64 * 8, 32 * 8);
screen.set_visarea(0, 64 * 8 - 1, 0, 32 * 8 - 1);
screen.set_screen_update(FUNC(homelab3_state::screen_update));
screen.set_palette("palette");
@ -796,84 +964,77 @@ void homelab3_state::brailab4(machine_config &config)
MEA8000(config, "mea8000", 3840000).add_route(ALL_OUTPUTS, "mono", 1.0);
}
/* ROM definition */
ROM_START( homelab2 )
ROM_REGION( 0x3800, "maincpu", ROMREGION_ERASEFF )
ROM_LOAD( "hl2_1.ic2", 0x0000, 0x0800, BAD_DUMP CRC(205365f7) SHA1(da93b65befd83513dc762663b234227ba804124d))
ROM_LOAD( "hl2_2.ic3", 0x0800, 0x0800, CRC(696af3c1) SHA1(b53bc6ae2b75975618fc90e7181fa5d21409fce1))
ROM_LOAD( "hl2_3.ic4", 0x1000, 0x0800, CRC(69e57e8c) SHA1(e98510abb715dbf513e1b29fb6b09ab54e9483b7))
ROM_LOAD( "hl2_4.ic5", 0x1800, 0x0800, CRC(97cbbe74) SHA1(34f0bad41302b059322018abc3d1c2336ecfbea8))
ROM_LOAD( "hl2_m.ic6", 0x2000, 0x0800, CRC(10040235) SHA1(e121dfb97cc8ea99193a9396a9f7af08585e0ff0) )
ROM_FILL(0x46, 1, 0x18) // fix bad code
ROM_FILL(0x47, 1, 0x0E)
ROM_START(homelab2)
ROM_REGION(0x3800, "maincpu", ROMREGION_ERASEFF)
ROM_LOAD("hl2_1.ic2", 0x0000, 0x0800, CRC(205365f7) SHA1(da93b65befd83513dc762663b234227ba804124d))
ROM_LOAD("hl2_2.ic3", 0x0800, 0x0800, CRC(696af3c1) SHA1(b53bc6ae2b75975618fc90e7181fa5d21409fce1))
ROM_LOAD("hl2_3.ic4", 0x1000, 0x0800, CRC(69e57e8c) SHA1(e98510abb715dbf513e1b29fb6b09ab54e9483b7))
ROM_LOAD("hl2_4.ic5", 0x1800, 0x0800, CRC(97cbbe74) SHA1(34f0bad41302b059322018abc3d1c2336ecfbea8))
ROM_LOAD("hl2_m.ic6", 0x2000, 0x0800, CRC(10040235) SHA1(e121dfb97cc8ea99193a9396a9f7af08585e0ff0))
ROM_REGION( 0x0800, "chargen", 0 )
ROM_LOAD( "hl2.ic33", 0x0000, 0x0800, CRC(2e669d40) SHA1(639dd82ed29985dc69830aca3b904b6acc8fe54a))
// found on net, looks like bad dump
//ROM_LOAD_OPTIONAL( "hl2_ch.rom", 0x0800, 0x1000, CRC(6a5c915a) SHA1(7e4e966358556c6aabae992f4c2b292b6aab59bd) )
ROM_REGION(0x0800, "chargen", 0)
ROM_LOAD("hl2.ic33", 0x0000, 0x0800, CRC(2e669d40) SHA1(639dd82ed29985dc69830aca3b904b6acc8fe54a))
ROM_END
ROM_START( homelab3 )
ROM_REGION( 0x4000, "maincpu", 0 )
ROM_LOAD( "hl3_1.ic1", 0x0000, 0x1000, CRC(6b90a8ea) SHA1(8ac40ca889b8c26cdf74ca309fbafd70dcfdfbec) )
ROM_LOAD( "hl3_2.ic2", 0x1000, 0x1000, CRC(bcac3c24) SHA1(aff371d17f61cb60c464998e092f04d5d85c4d52) )
ROM_LOAD( "hl3_3.ic3", 0x2000, 0x1000, CRC(ab1b4ab0) SHA1(ad74c7793f5dc22061a88ef31d3407267ad08719) )
ROM_LOAD( "hl3_4.ic4", 0x3000, 0x1000, CRC(bf67eff9) SHA1(2ef5d46f359616e7d0e5a124df528de44f0e850b) )
ROM_START(homelab3)
ROM_REGION(0x4000, "maincpu", 0)
ROM_LOAD("hl3_1.ic1", 0x0000, 0x1000, CRC(6b90a8ea) SHA1(8ac40ca889b8c26cdf74ca309fbafd70dcfdfbec))
ROM_LOAD("hl3_2.ic2", 0x1000, 0x1000, CRC(bcac3c24) SHA1(aff371d17f61cb60c464998e092f04d5d85c4d52))
ROM_LOAD("hl3_3.ic3", 0x2000, 0x1000, CRC(ab1b4ab0) SHA1(ad74c7793f5dc22061a88ef31d3407267ad08719))
ROM_LOAD("hl3_4.ic4", 0x3000, 0x1000, CRC(bf67eff9) SHA1(2ef5d46f359616e7d0e5a124df528de44f0e850b))
ROM_REGION( 0x0800, "chargen", 0 )
ROM_LOAD( "hl3.ic21", 0x0000, 0x0800, CRC(f58ee39b) SHA1(49399c42d60a11b218a225856da86a9f3975a78a) )
ROM_REGION(0x0800, "chargen", 0)
ROM_LOAD("hl3.ic21", 0x0000, 0x0800, CRC(f58ee39b) SHA1(49399c42d60a11b218a225856da86a9f3975a78a))
ROM_REGION( 0x0040, "proms", 0 )
ROM_LOAD( "tm188.ic7", 0x0000, 0x0040, NO_DUMP )
ROM_REGION(0x0040, "proms", 0)
ROM_LOAD("tm188.ic7", 0x0000, 0x0040, NO_DUMP)
ROM_END
ROM_START( homelab4 )
ROM_REGION( 0x4000, "maincpu", 0 )
ROM_LOAD( "hl4_1.ic1", 0x0000, 0x1000, CRC(a549b2d4) SHA1(90fc5595da8431616aee56eb5143b9f04281e798) )
ROM_LOAD( "hl4_2.ic2", 0x1000, 0x1000, CRC(151d33e8) SHA1(d32004bc1553f802b9d3266709552f7d5315fe44) )
ROM_LOAD( "hl4_3.ic3", 0x2000, 0x1000, CRC(39571ab1) SHA1(8470cff2e3442101e6a0bc655358b3a6fc1ef944) )
ROM_LOAD( "hl4_4.ic4", 0x3000, 0x1000, CRC(f4b77ca2) SHA1(ffbdb3c1819c7357e2a0fc6317c111a8a7ecfcd5) )
ROM_START(homelab4)
ROM_REGION(0x4000, "maincpu", 0)
ROM_LOAD("hl4_1.ic1", 0x0000, 0x1000, CRC(a549b2d4) SHA1(90fc5595da8431616aee56eb5143b9f04281e798))
ROM_LOAD("hl4_2.ic2", 0x1000, 0x1000, CRC(151d33e8) SHA1(d32004bc1553f802b9d3266709552f7d5315fe44))
ROM_LOAD("hl4_3.ic3", 0x2000, 0x1000, CRC(39571ab1) SHA1(8470cff2e3442101e6a0bc655358b3a6fc1ef944))
ROM_LOAD("hl4_4.ic4", 0x3000, 0x1000, CRC(f4b77ca2) SHA1(ffbdb3c1819c7357e2a0fc6317c111a8a7ecfcd5))
ROM_REGION( 0x0800, "chargen",0 )
ROM_LOAD( "hl4.ic21", 0x0000, 0x0800, CRC(f58ee39b) SHA1(49399c42d60a11b218a225856da86a9f3975a78a) )
ROM_REGION(0x0800, "chargen", 0)
ROM_LOAD("hl4.ic21", 0x0000, 0x0800, CRC(f58ee39b) SHA1(49399c42d60a11b218a225856da86a9f3975a78a))
ROM_REGION( 0x0040, "proms", 0 )
ROM_LOAD( "tm188.ic7", 0x0000, 0x0040, NO_DUMP )
ROM_REGION(0x0040, "proms", 0)
ROM_LOAD("tm188.ic7", 0x0000, 0x0040, NO_DUMP)
ROM_END
ROM_START( brailab4 )
ROM_REGION( 0x5000, "maincpu", 0 )
ROM_LOAD( "brl1.ic1", 0x0000, 0x1000, CRC(02323403) SHA1(3a2e853e0a39e05a04a8db58e1a76de1eda579c9) )
ROM_LOAD( "brl2.ic2", 0x1000, 0x1000, CRC(36173fbc) SHA1(1c01398e16a1cbe4103e1be769347ceae873e090) )
ROM_LOAD( "brl3.ic3", 0x2000, 0x1000, CRC(d3cdd108) SHA1(1a24e6c5f9c370ff6cb25045cb9d95e664467eb5) )
ROM_LOAD( "brl4.ic4", 0x3000, 0x1000, CRC(d4047885) SHA1(00fe40c4c2c64a49bb429fb2b27cc7e0d0025a85) )
ROM_LOAD( "brl5.rom", 0x4000, 0x1000, CRC(8a76be04) SHA1(4b683b9be23b47117901fe874072eb7aa481e4ff) )
ROM_START(brailab4)
ROM_REGION(0x5000, "maincpu", 0)
ROM_LOAD("brl1.ic1", 0x0000, 0x1000, CRC(02323403) SHA1(3a2e853e0a39e05a04a8db58e1a76de1eda579c9))
ROM_LOAD("brl2.ic2", 0x1000, 0x1000, CRC(36173fbc) SHA1(1c01398e16a1cbe4103e1be769347ceae873e090))
ROM_LOAD("brl3.ic3", 0x2000, 0x1000, CRC(d3cdd108) SHA1(1a24e6c5f9c370ff6cb25045cb9d95e664467eb5))
ROM_LOAD("brl4.ic4", 0x3000, 0x1000, CRC(d4047885) SHA1(00fe40c4c2c64a49bb429fb2b27cc7e0d0025a85))
ROM_LOAD("brl5.rom", 0x4000, 0x1000, CRC(8a76be04) SHA1(4b683b9be23b47117901fe874072eb7aa481e4ff))
ROM_REGION( 0x0800, "chargen", 0 )
ROM_LOAD( "hl4.ic21", 0x0000, 0x0800, CRC(f58ee39b) SHA1(49399c42d60a11b218a225856da86a9f3975a78a) )
ROM_REGION(0x0800, "chargen", 0)
ROM_LOAD("hl4.ic21", 0x0000, 0x0800, CRC(f58ee39b) SHA1(49399c42d60a11b218a225856da86a9f3975a78a))
ROM_REGION( 0x0040, "proms", 0 )
ROM_LOAD( "tm188.ic7", 0x0000, 0x0040, NO_DUMP )
ROM_REGION(0x0040, "proms", 0)
ROM_LOAD("tm188.ic7", 0x0000, 0x0040, NO_DUMP)
// these roms were found on the net, to be investigated
ROM_REGION( 0x5020, "user1", 0 )
ROM_REGION(0x5020, "user1", 0)
// brl1 to 5 merged, with small changes
// 00BF: 28 18 87 -> 30 30 0c
// 0138: 07 0a 06 0b -> 0c 06 07 0a (keyboard assignments)
ROM_LOAD_OPTIONAL( "brl.rom", 0x0000, 0x5000, CRC(54af5d30) SHA1(d1e7b7f5866acba0503d47f610456f396526240b) )
ROM_LOAD_OPTIONAL("brl.rom", 0x0000, 0x5000, CRC(54af5d30) SHA1(d1e7b7f5866acba0503d47f610456f396526240b))
// a small prom
ROM_LOAD_OPTIONAL( "brlcpm.rom", 0x5000, 0x0020, CRC(b936d568) SHA1(150330eccbc4b664eba4103f051d6e932038e9e8) )
ROM_LOAD_OPTIONAL("brlcpm.rom", 0x5000, 0x0020, CRC(b936d568) SHA1(150330eccbc4b664eba4103f051d6e932038e9e8))
ROM_END
} // anonymous namespace
/* Driver */
/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
COMP( 1982, homelab2, 0, 0, homelab2, homelab2, homelab2_state, empty_init, "Jozsef and Endre Lukacs", "Homelab 2 / Aircomp 16", MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW | MACHINE_SUPPORTS_SAVE )
COMP( 1983, homelab3, homelab2, 0, homelab3, homelab3, homelab3_state, empty_init, "Jozsef and Endre Lukacs", "Homelab 3", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
COMP( 1984, homelab4, homelab2, 0, homelab3, homelab3, homelab3_state, empty_init, "Jozsef and Endre Lukacs", "Homelab 4", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
COMP( 1984, brailab4, homelab2, 0, brailab4, brailab4, homelab3_state, empty_init, "Jozsef and Endre Lukacs", "Brailab 4", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE )
COMP(1982, homelab2, 0, 0, homelab2, homelab2, homelab2_state, empty_init, "Jozsef and Endre Lukacs", "Homelab 2 / Aircomp 16", MACHINE_SUPPORTS_SAVE)
COMP(1983, homelab3, homelab2, 0, homelab3, homelab3, homelab3_state, empty_init, "Jozsef and Endre Lukacs", "Homelab 3", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE)
COMP(1984, homelab4, homelab2, 0, homelab3, homelab3, homelab3_state, empty_init, "Jozsef and Endre Lukacs", "Homelab 4", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE)
COMP(1984, brailab4, homelab2, 0, brailab4, brailab4, homelab3_state, empty_init, "Jozsef and Endre Lukacs", "Brailab 4", MACHINE_NOT_WORKING | MACHINE_SUPPORTS_SAVE)