summaryrefslogtreecommitdiffstatshomepage
diff options
context:
space:
mode:
author Joakim Larsson Edstrom <Joakim.Edstrom@edstromious.se>2020-01-30 11:12:34 +0100
committer Joakim Larsson Edstrom <Joakim.Edstrom@edstromious.se>2020-01-30 11:12:34 +0100
commit8f9e9c9e84f863527f1502f0a8b0ee46a659d227 (patch)
tree4b169f9032a82c8a5da20bde764ac4e46c1164cd
parentd2ad10d5888e67b1fcf1585403d46a9bc3964dd5 (diff)
alfaskop4110: WIP added keyboard
-rw-r--r--scripts/target/mame/mess.lua3
-rw-r--r--src/mame/drivers/alfaskop41xx.cpp204
-rw-r--r--src/mame/machine/alfaskop_s41_kb.cpp397
-rw-r--r--src/mame/machine/alfaskop_s41_kb.h48
4 files changed, 586 insertions, 66 deletions
diff --git a/scripts/target/mame/mess.lua b/scripts/target/mame/mess.lua
index 2d4427ddbd2..b448b883d7a 100644
--- a/scripts/target/mame/mess.lua
+++ b/scripts/target/mame/mess.lua
@@ -2217,6 +2217,9 @@ files {
MAME_DIR .. "src/mame/drivers/eispc.cpp",
MAME_DIR .. "src/mame/machine/eispc_kb.cpp",
MAME_DIR .. "src/mame/machine/eispc_kb.h",
+ MAME_DIR .. "src/mame/drivers/alfaskop41xx.cpp",
+ MAME_DIR .. "src/mame/machine/alfaskop_s41_kb.cpp",
+ MAME_DIR .. "src/mame/machine/alfaskop_s41_kb.h",
}
createMESSProjects(_target, _subtarget, "exidy")
diff --git a/src/mame/drivers/alfaskop41xx.cpp b/src/mame/drivers/alfaskop41xx.cpp
index eeadb8bbd1b..63d461631f8 100644
--- a/src/mame/drivers/alfaskop41xx.cpp
+++ b/src/mame/drivers/alfaskop41xx.cpp
@@ -32,9 +32,10 @@ Dansk Datahistorisk Forening - http://datamuseum.dk/
#include "screen.h"
#include "machine/input_merger.h"
#include "machine/output_latch.h"
+#include "machine/alfaskop_s41_kb.h"
//#include "bus/rs232/rs232.h"
-//#include "machine/clock.h"
+#include "machine/clock.h"
#define LOG_IO (1U << 1)
#define LOG_NVRAM (1U << 2)
@@ -43,8 +44,12 @@ Dansk Datahistorisk Forening - http://datamuseum.dk/
#define LOG_DMA (1U << 5)
#define LOG_IRQ (1U << 6)
#define LOG_ADLC (1U << 7)
+#define LOG_KBD (1U << 8)
+#define LOG_AM (1U << 9)
+#define LOG_LEDS (1U << 10)
+#define LOG_BITS (1U << 11)
-//#define VERBOSE (LOG_MIC|LOG_ADLC|LOG_IRQ|LOG_DMA|LOG_IO)
+//#define VERBOSE (LOG_MIC)
//#define LOG_OUTPUT_STREAM std::cout
#include "logmacro.h"
@@ -56,6 +61,10 @@ Dansk Datahistorisk Forening - http://datamuseum.dk/
#define LOGDMA(...) LOGMASKED(LOG_DMA, __VA_ARGS__)
#define LOGIRQ(...) LOGMASKED(LOG_IRQ, __VA_ARGS__)
#define LOGADLC(...) LOGMASKED(LOG_ADLC, __VA_ARGS__)
+#define LOGKBD(...) LOGMASKED(LOG_KBD, __VA_ARGS__)
+#define LOGAM(...) LOGMASKED(LOG_AM, __VA_ARGS__)
+#define LOGLEDS(...) LOGMASKED(LOG_LEDS, __VA_ARGS__)
+#define LOGBITS(...) LOGMASKED(LOG_BITS, __VA_ARGS__)
#define PLA1_TAG "ic50"
@@ -72,6 +81,7 @@ public:
, m_screen(*this, "screen")
, m_vram(*this, "vram")
, m_pla(*this, PLA1_TAG)
+ , m_kbd(*this, "keyboard")
, m_chargen(*this, "chargen")
, m_tia_adlc(*this, "tia_adlc")
, m_tia_dma(*this, "tia_dma")
@@ -94,6 +104,7 @@ private:
required_device<screen_device> m_screen;
required_shared_ptr<uint8_t> m_vram;
required_device<pls100_device> m_pla;
+ required_device<alfaskop_s41_keyboard_device> m_kbd;
/* Video controller */
required_region_ptr<uint8_t> m_chargen;
@@ -108,6 +119,9 @@ private:
uint8_t m_irq;
uint8_t m_imsk;
+ /* Kbd communications */
+ uint8_t m_txd;
+
/* Debug stuff */
/* Timer */
enum
@@ -118,6 +132,7 @@ private:
void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override;
// DEBUG stuff, will be removed when hooked up towards remote peer
+#if 1
/* zero extended SDLC poll message frame to feed into receiver as a test
0 1 1 1 1 1 1 0 ; opening flag 0x7e
0 0 0 0 0 0 0 0 ; 0x00
@@ -129,6 +144,22 @@ private:
0 1 1 1 1 1 1 0 ; closing flag 0x7e
*/
uint8_t txBuf[10] = {0x7e, 0x00, 0xff, 0xc0, 0xa0, 0x8d, 0x55, 0x7e};
+
+#else // Alternative poll message body wih faulty CRC, CRC isn't checked yet by the ADLC
+
+ /* zero extended SDLC poll message frame to feed into receiver as a test
+ 0 1 1 1 1 1 1 0 ; opening flag 0x7e
+ 0 0 0 0 0 0 0 0 ; 0x00
+ 0 0 0 0 0 0 0 0 ; 0x00
+ 1 1 1 1 1 0 1 1 0 ; 0xfe <- a zero needs to be inserted, done by test code
+ 1 1 1 0 1 0 0 1 ; 0xe9
+ 1 0 1 1 0 0 0 1 ; CRC 0x8d - wrong
+ 1 0 1 0 1 0 1 0 ; CRC 0x55 - wrong
+ 0 1 1 1 1 1 1 0 ; closing flag 0x7e
+ */
+ uint8_t txBuf[10] = {0x7e, 0x00, 0x00, 0xfe, 0xe9, 0x8d, 0x55, 0x7e};
+#endif
+
int index = 0;
int pos = 0;
int ones = 0;
@@ -179,24 +210,30 @@ void alfaskop4110_state::mem_map(address_map &map)
map(0x8000, 0xefff).ram();
// NVRAM
- map(0xf600, 0xf6ff).lrw8(NAME([this](offs_t offset) -> uint8_t { LOGNVRAM("nvram_r %04x: %02x\n", offset, 0); return (uint8_t) 0; }),
- NAME( [this](offs_t offset, uint8_t data) { LOGNVRAM("nvram_w %04x: %02x\n", offset, data); }));
+ map(0xf600, 0xf6ff).lrw8(NAME([this](offs_t offset) -> uint8_t
+ {
+ LOGNVRAM("nvram_r %04x: %02x\n", offset, 0); return (uint8_t) 0;
+ }),
+ NAME([this](offs_t offset, uint8_t data)
+ {
+ LOGNVRAM("nvram_w %04x: %02x\n", offset, data);
+ }));
// TIA board
map(0xf700, 0xf71f).mirror(0x00).lrw8(NAME([this](offs_t offset) -> uint8_t { LOGDMA("TIA DMA_r %04x: %02x\n", offset, 0); return m_tia_dma->read(offset); }),
- NAME([this](offs_t offset, uint8_t data) { LOGDMA("TIA DMA_w %04x: %02x\n", offset, data); m_tia_dma->write(offset, data); }));
+ NAME([this](offs_t offset, uint8_t data) { LOGDMA("TIA DMA_w %04x: %02x\n", offset, data); m_tia_dma->write(offset, data); }));
map(0xf720, 0xf723).mirror(0x04).lrw8(NAME([this](offs_t offset) -> uint8_t { LOGADLC("TIA ADLC_r %04x: %02x\n", offset, 0); return m_tia_adlc->read(offset); }),
- NAME([this](offs_t offset, uint8_t data) { LOGADLC("TIA ADLC_w %04x: %02x\n", offset, data); m_tia_adlc->write(offset, data); }));
+ NAME([this](offs_t offset, uint8_t data) { LOGADLC("TIA ADLC_w %04x: %02x\n", offset, data); m_tia_adlc->write(offset, data); }));
// Main PCB
map(0xf7d9, 0xf7d9).mirror(0x06).lrw8(NAME([this](offs_t offset) -> uint8_t { LOGIO("CRTC reg r %04x: %02x\n", offset, 0); return m_crtc->register_r(); }),
- NAME([this](offs_t offset, uint8_t data) { LOGIO("CRTC reg w %04x: %02x\n", offset, data); m_crtc->register_w(data);}));
+ NAME([this](offs_t offset, uint8_t data) { LOGIO("CRTC reg w %04x: %02x\n", offset, data); m_crtc->register_w(data);}));
map(0xf7d8, 0xf7d8).mirror(0x06).lw8(NAME([this](offs_t offset, uint8_t data) { LOGIO("CRTC adr w %04x: %02x\n", offset, data); m_crtc->address_w(data); }));
map(0xf7d0, 0xf7d3).mirror(0x04).lrw8(NAME([this](offs_t offset) -> uint8_t { LOGDIA("DIA pia_r %04x: %02x\n", offset, 0); return m_dia_pia->read(offset & 3); }),
- NAME([this](offs_t offset, uint8_t data) { LOGDIA("DIA pia_w %04x: %02x\n", offset, data); m_dia_pia->write(offset & 3, data); }));
+ NAME([this](offs_t offset, uint8_t data) { LOGDIA("DIA pia_w %04x: %02x\n", offset, data); m_dia_pia->write(offset & 3, data); }));
map(0xf7c4, 0xf7c7).mirror(0x00).lrw8(NAME([this](offs_t offset) -> uint8_t { uint8_t tmp = m_mic_pia->read(offset & 3); LOGMIC("\nMIC pia_r %04x: %02x\n", offset, tmp); return tmp; }),
- NAME([this](offs_t offset, uint8_t data) { LOGMIC("\nMIC pia_w %04x: %02x\n", offset, data); m_mic_pia->write(offset & 3, data); }));
- map(0xf7c0, 0xf7c1).mirror(0x02).lrw8(NAME([this](offs_t offset) -> uint8_t { LOGIO("KBD acia_r %04x: %02x\n", offset, 0); return m_kbd_acia->read(offset & 1); }),
- NAME([this](offs_t offset, uint8_t data) { LOGIO("KBD acia_w %04x: %02x\n", offset, data); m_kbd_acia->write(offset & 1, data); }));
+ NAME([this](offs_t offset, uint8_t data) { LOGMIC("\nMIC pia_w %04x: %02x\n", offset, data); m_mic_pia->write(offset & 3, data); }));
+ map(0xf7c0, 0xf7c1).mirror(0x02).lrw8(NAME([this](offs_t offset) -> uint8_t { LOGKBD("KBD acia_r %04x: %02x\n", offset, 0); return m_kbd_acia->read(offset & 1); }),
+ NAME([this](offs_t offset, uint8_t data) { LOGKBD("KBD acia_w %04x: %02x\n", offset, data); m_kbd_acia->write(offset & 1, data); }));
map(0xf7fc, 0xf7fc).mirror(0x00).lr8(NAME([this](offs_t offset) -> uint8_t { LOGIO("Address Switch 0-7\n"); return 0; }));
@@ -204,32 +241,33 @@ void alfaskop4110_state::mem_map(address_map &map)
// IRQ mask setting
map(0xffe8, 0xfff7).rom().lrw8( NAME([this](offs_t offset) -> uint8_t
- {
- if (!machine().side_effects_disabled()) LOGIO("AMSK read set %04x\n", offset >> 1);
- m_imsk = (offset >> 1) & 7;
- return ((uint8_t *) memregion("roms")->base() + 0x7e8)[offset];
- }),
+ {
+ if (!machine().side_effects_disabled()) LOGAM("AMSK read set %04x\n", offset >> 1);
+ m_imsk = (offset >> 1) & 7;
+ return ((uint8_t *) memregion("roms")->base() + 0x7e8)[offset];
+ }),
NAME([this](offs_t offset, uint8_t data)
- {
- if (!machine().side_effects_disabled()) LOGIO("AMSK write set %04x\n", offset);
- m_imsk = (offset >> 1) & 7;
- }));
+ {
+ if (!machine().side_effects_disabled()) LOGAM("AMSK write set %04x\n", offset);
+ m_imsk = (offset >> 1) & 7;
+ }));
// Address modification
map(0xfff8, 0xfff9).rom().lrw8( NAME([this](offs_t offset) -> uint8_t
- {
- uint16_t ploffs = (~m_irq & 0xff) | ((m_imsk & 0x07) << 8) | 0x000 | (0x18 << 11);
- uint8_t tmp = ((uint8_t *) memregion("roms")->base())[0x7e0 | offset | ((m_pla->read(ploffs) & 0xf0) >> 3)];
- if (!machine().side_effects_disabled())
- {
- LOGIO("AMOD read %04x: %02x\n", offset, tmp);
- LOGIO("AMOD pla read %04x: %02x ==> %04x\n", ploffs, m_pla->read(ploffs), (0xffe0 | offset | ((m_pla->read(ploffs) & 0xf0) >> 3)));
- }
- return tmp; }),
+ {
+ uint16_t ploffs = (~m_irq & 0xff) | ((m_imsk & 0x07) << 8) | 0x000 | (0x18 << 11);
+ uint8_t tmp = ((uint8_t *) memregion("roms")->base())[0x7e0 | offset | ((m_pla->read(ploffs) & 0xf0) >> 3)];
+ if (!machine().side_effects_disabled())
+ {
+ LOGAM("AMOD read %04x: %02x\n", offset, tmp);
+ LOGAM("AMOD pla read %04x: %02x ==> %04x\n", ploffs, m_pla->read(ploffs), (0xffe0 | offset | ((m_pla->read(ploffs) & 0xf0) >> 3)));
+ }
+ return tmp;
+ }),
NAME([this](offs_t offset, uint8_t data) // TODO: Check what a write does if anything
- {
- if (!machine().side_effects_disabled()) LOGIO("AMOD write %04x\n", offset);
- }));
+ {
+ if (!machine().side_effects_disabled()) LOGAM("AMOD write %04x\n", offset);
+ }));
map(0xfffa, 0xffff).rom().region("roms", 0x7fa);
}
@@ -241,9 +279,9 @@ void alfaskop4120_state::mem_map(address_map &map)
map(0xf600, 0xf6ff).lrw8(NAME([this](offs_t offset) -> uint8_t { LOGNVRAM("nvram_r %04x: %02x\n", offset, 0); return (uint8_t) 0; }), // TODO: Move to MRO board
NAME([this](offs_t offset, uint8_t data) { LOGNVRAM("nvram_w %04x: %02x\n", offset, data); }));
map(0xf740, 0xf743).mirror(0x0c).lrw8(NAME([this](offs_t offset) -> uint8_t { LOGIO("FDA pia_r %04x: %02x\n", offset, 0); return m_fdapia->read(offset & 3); }),
- NAME([this](offs_t offset, uint8_t data) { LOGIO("FDA pia_w %04x: %02x\n", offset, data); m_fdapia->write(offset & 3, data); }));
+ NAME([this](offs_t offset, uint8_t data) { LOGIO("FDA pia_w %04x: %02x\n", offset, data); m_fdapia->write(offset & 3, data); }));
map(0xf7c4, 0xf7c7).mirror(0x00).lrw8(NAME([this](offs_t offset) -> uint8_t { LOGMIC("MIC pia_r %04x: %02x\n", offset, 0); return m_mic_pia->read(offset & 3); }),
- NAME([this](offs_t offset, uint8_t data) { LOGMIC("MIC pia_w %04x: %02x\n", offset, data); m_mic_pia->write(offset & 3, data); }));
+ NAME([this](offs_t offset, uint8_t data) { LOGMIC("MIC pia_w %04x: %02x\n", offset, data); m_mic_pia->write(offset & 3, data); }));
map(0xf800, 0xffff).rom().region("roms", 0);
}
@@ -254,7 +292,7 @@ void alfaskop4101_state::mem_map(address_map &map)
map(0xf600, 0xf6ff).lrw8(NAME([this](offs_t offset) -> uint8_t { LOGNVRAM("nvram_r %04x: %02x\n", offset, 0); return (uint8_t) 0; }),
NAME([this](offs_t offset, uint8_t data) { LOGNVRAM("nvram_w %04x: %02x\n", offset, data); }));
map(0xf7c4, 0xf7c7).mirror(0x00).lrw8(NAME([this](offs_t offset) -> uint8_t { LOGMIC("MIC pia_r %04x: %02x\n", offset, 0); return m_mic_pia->read(offset & 3); }),
- NAME([this](offs_t offset, uint8_t data) { LOGMIC("MIC pia_w %04x: %02x\n", offset, data); m_mic_pia->write(offset & 3, data); }));
+ NAME([this](offs_t offset, uint8_t data) { LOGMIC("MIC pia_w %04x: %02x\n", offset, data); m_mic_pia->write(offset & 3, data); }));
map(0xf800, 0xffff).rom().region("roms", 0);
}
@@ -301,6 +339,19 @@ void alfaskop4110_state::alfaskop4110(machine_config &config)
M6800(config, m_maincpu, XTAL(19'170'000) / 18); // Verified from service manual
m_maincpu->set_addrmap(AS_PROGRAM, &alfaskop4110_state::mem_map);
+ // TTL-level serial keyboard callback
+ ALFASKOP_S41_KB(config, m_kbd);
+ m_kbd->txd_cb().set([this](bool state)
+ {
+ LOGBITS("KBD->4110: %d\n", state);
+ m_kbd_acia->write_rxd(state);
+ });
+ m_kbd->leds_cb().set([this] (uint8_t data)
+ {
+ LOGLEDS("LEDS: write %02x to LEDs\n", data);
+ });
+
+
/* Interrupt controller and address modifier PLA */
/*
* 82S100 data sheet
@@ -400,7 +451,8 @@ void alfaskop4110_state::alfaskop4110(machine_config &config)
m_mic_pia->writepa_handler().set([this](offs_t offset, uint8_t data)
{
LOGMIC("->MIC PIA: Port A write %02x\n", data);
- LOGMIC(" PA1 - KBD reset %s\n", BIT(data, 1) ? "active" : "inactive");
+ LOGKBD(" PA1 - KBD reset %s\n", BIT(data, 1) ? "active" : "inactive");
+ m_kbd->rst_line_w(BIT(data, 1) ? ASSERT_LINE : CLEAR_LINE);
LOGMIC(" PA5 - Int out %s\n", BIT(data, 5) ? "enabled": "disabled");
LOGMIC(" PA6 - I4 latch %s\n", BIT(data, 6) ? "enabled": "disabled");
});
@@ -438,13 +490,24 @@ void alfaskop4110_state::alfaskop4110(machine_config &config)
m_dia_pia->readca1_handler().set([this](offs_t offset) -> uint8_t { LOGDIA("DIA PIA: CA1_r\n"); return 0;});
m_dia_pia->readca2_handler().set([this](offs_t offset) -> uint8_t { LOGDIA("DIA PIA: CA2_r\n"); return 0;});
- ACIA6850(config, m_kbd_acia, 0);
- //CLOCK(config, "acia_clock", ACIA_CLOCK).signal_handler().set(FUNC(alfaskop4110_state::write_acia_clock));
+ /* The ACIA RxC and TxC are fed from the systemclock divided through a by 14 dividing 74163, from the tech manual:
+ "A clock of 76 kHz is provided for the ACIA by the timing logic. ACIA divides this clock by 64 (Bit transfer rate 1188 Hz) and
+ synchronizes internally to received data. Furthermore ACIA may provide interrupt (at level 3) when transmit register is empty,
+ receive register is full or an error has occured. */
+ ACIA6850(config, m_kbd_acia, XTAL(19'170'000) / 18);
+ CLOCK(config, "acia_clock", (XTAL(19'170'000) / 18) / 14 ).signal_handler().set([this](int state) { m_kbd_acia->write_txc(state); m_kbd_acia->write_rxc(state); });
m_kbd_acia->irq_handler().set("irq3", FUNC(input_merger_device::in_w<3>));
+ m_kbd_acia->txd_handler().set([this](bool state)
+ {
+ if (m_txd != state)
+ {
+ LOGBITS("4110->KBD: %d\n", state);
+ m_txd = state;
+ m_kbd->rxd_w(m_txd);
+ }
+ });
- MC6854(config, m_tia_adlc, XTAL(19'170'000) / 18); // TODO: attach IRQ by IRQ 7 through descrete interrupt prioritization instead
- //m_tia_adlc->out_irq_cb().set([this](bool state){ LOGDMA("TIA ADLC IRQ: %s\n", state == ASSERT_LINE ? "asserted" : "cleared"); m_maincpu->set_input_line(M6800_IRQ_LINE, state); });
- //m_tia_adlc->out_irq_cb().set([this](bool state){ LOGDMA("TIA ADLC IRQ: %s\n", state == ASSERT_LINE ? "asserted" : "cleared"); m_maincpu->set_input_line(M6800_IRQ_LINE, state); });
+ MC6854(config, m_tia_adlc, XTAL(19'170'000) / 18);
m_tia_adlc->out_irq_cb().set("irq7", FUNC(input_merger_device::in_w<7>));
m_tia_adlc->out_rdsr_cb().set([this](bool state){ LOGDMA("TIA ADLC RDSR: %d\n", state); m_tia_dma->dreq_w<1>(state); });
m_tia_adlc->out_tdsr_cb().set([this](bool state){ LOGDMA("TIA ADLC TDSR: %d\n", state); m_tia_dma->dreq_w<0>(state); });
@@ -472,11 +535,15 @@ void alfaskop4110_state::machine_start()
save_item(NAME(m_irq));
save_item(NAME(m_imsk));
timer_set(attotime::from_msec(5000), TIMER_POLL_START);
+
+ // Hard wired inputs
+ m_kbd_acia->write_cts(0);
+ m_kbd_acia->write_dcd(0);
}
void alfaskop4110_state::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr)
{
- // Debug, inserts a poll SDLC frame through the ADLC, it ends up at address 0x140 in RAM through DMA
+ // Debug feature, inserts a poll SDLC frame through the ADLC, it ends up at address 0x140 in RAM through DMA
switch (id)
{
case TIMER_POLL_START:
@@ -486,37 +553,42 @@ void alfaskop4110_state::device_timer(emu_timer &timer, device_timer_id id, int
timer_set(attotime::from_hz(300000), TIMER_POLL_BIT);
break;
case TIMER_POLL_BIT:
- if (flank)
- {
- if (index != 0 && index != 7 && BIT(txBuf[index], (pos % 8)) && ones == 5)
+ if (flank)
{
- LOGADLC("%d%c", 2, (pos % 8) == 7 ? '\n' : ' ');
- m_tia_adlc->set_rx(0);
- ones = 0;
- }
- else
- {
- LOGADLC("%d%c", BIT(txBuf[index], (pos % 8)), (pos % 8) == 7 ? '\n' : ' ');
- m_tia_adlc->set_rx(BIT(txBuf[index], (pos % 8)));
- if (index != 0 && index != 7 && BIT(txBuf[index], (pos % 8)))
- ones++;
- else
+ if (index != 0 && index != 7 && BIT(txBuf[index], (pos % 8)) && ones == 5)
+ {
+ LOGADLC("%d%c", 2, (pos % 8) == 7 ? '\n' : ' ');
+ m_tia_adlc->set_rx(0);
ones = 0;
- pos++;
- index = pos / 8;
+ }
+ else
+ {
+ LOGADLC("%d%c", BIT(txBuf[index], (pos % 8)), (pos % 8) == 7 ? '\n' : ' ');
+ m_tia_adlc->set_rx(BIT(txBuf[index], (pos % 8)));
+ if (index != 0 && index != 7 && BIT(txBuf[index], (pos % 8)))
+ ones++;
+ else
+ ones = 0;
+ pos++;
+ index = pos / 8;
+ }
}
- }
- m_tia_adlc->rxc_w(flank ? 1 : 0);
- if (index < 8)
- timer_set(attotime::from_hz(300000) / 2, TIMER_POLL_BIT);
- flank = !flank;
- break;
+ m_tia_adlc->rxc_w(flank ? 1 : 0);
+ if (index < 8)
+ timer_set(attotime::from_hz(300000) / 2, TIMER_POLL_BIT);
+ flank = !flank;
+ break;
}
}
void alfaskop4110_state::machine_reset()
{
m_irq = 0x00;
+ m_kbd->rst_line_w(ASSERT_LINE);
+
+ // Hard wired inputs
+ m_kbd_acia->write_cts(0);
+ m_kbd_acia->write_dcd(0);
}
void alfaskop4120_state::alfaskop4120(machine_config &config)
@@ -545,7 +617,7 @@ ROM_START( alfaskop4110 ) // Display Unit
ROM_REGION( 0x800, "chargen", ROMREGION_ERASEFF )
ROM_LOAD( "e3405972067500.bin", 0x0000, 0x0400, CRC(fb12b549) SHA1(53783f62c5e51320a53e053fbcf8b3701d8a805f))
ROM_LOAD( "e3405972067600.bin", 0x0400, 0x0400, CRC(c7069d65) SHA1(587efcbee036d4c0c5b936cc5d7b1f97b6fe6dba))
- ROM_REGION( 0xff, PLA1_TAG, 0 )
+ ROM_REGION( 0xff, PLA1_TAG, 0 )
//ROM_LOAD( "dtc_a_e34062_0100_ic50_e3405970303601_ml.bin", 0x00, 0xf5, CRC(b37395f2) SHA1(a00dc77d4bef084c0ddceef618986d83c69b1d65) ) // Signetics_N82S100N.bin MAXLOADER format
ROM_LOAD( "dtc_a_e34062_0100_ic50_e3405970303601.bin", 0x00, 0xfa, CRC(16339b7a) SHA1(9b313a7526460dc9bcedfda25bece91c924f0ddc) ) // Signetics_N82S100N.bin DATAIO format
ROM_END
@@ -562,7 +634,7 @@ ROM_END
/* Driver(S) */
-// Only 4101 may exist as a driver in the end making the 4110 and 4120 as slots devices on the SS3 bus, time will tell
+// Only 4101 should exist as a driver in the end, making the 4110 and 4120 as slots devices on the SS3 bus, time will tell
// YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS
COMP( 1984, alfaskop4110, 0, 0, alfaskop4110, alfaskop4110, alfaskop4110_state, empty_init, "Ericsson", "Alfaskop Display Unit 4110", MACHINE_IS_SKELETON)
diff --git a/src/mame/machine/alfaskop_s41_kb.cpp b/src/mame/machine/alfaskop_s41_kb.cpp
new file mode 100644
index 00000000000..733914d636e
--- /dev/null
+++ b/src/mame/machine/alfaskop_s41_kb.cpp
@@ -0,0 +1,397 @@
+// license:BSD-3-Clause
+// copyright-holders: Joakim Larsson Edström
+/**********************************************************************
+
+ Alfaskop 4110 keyboard, emulation of the KeyBoard Unit KBU 4140. which often
+ was attached to the numerical Keyboard eXpansion Unit KXE 4141 which is not
+ emulated yet. There is also an optional Magnetic Identification Device MID 4131
+
+ TTL-level bi-directional serial matrix keyboard
+
+ The KBU 4140 keyboard is controlled by a MC6802@3'579'000Hz in combo with a MC6846.
+ The key matrix is scanned with the help of two 74LS164 which is also extended to the
+ KXE 4141. The columns are read through a 74LS240. There are 8 LEDs which are
+ latched by a 74LS374. The I/O port on the MC6846 is connected to a magnet strip
+ reader through a MIA interface
+
+ The keyboard serial interface line is interpreted and generated by the timer in
+ the MC6846 where both TX and Rx shares the same line on the keyboard side. The
+ keyboard remains silent until spoken to by the host computer to avoid collisions.
+
+ Credits
+ -------
+ The MC6846 ROM and address decoder ROM were dumped by Dalby Datormuseum whom
+ also provided documentation and schematics of the keyboard
+
+ https://sites.google.com/site/dalbydatormuseum/home
+
+ **********************************************************************/
+
+#include "emu.h"
+#include "alfaskop_s41_kb.h"
+#include "cpu/m6800/m6800.h"
+
+//**************************************************************************
+// CONFIGURABLE LOGGING
+//**************************************************************************
+#define LOG_IRQ (1U << 1)
+#define LOG_RESET (1U << 2)
+#define LOG_BITS (1U << 3)
+#define LOG_UI (1U << 4)
+#define LOG_LEDS (1U << 5)
+#define LOG_ROM (1U << 6)
+#define LOG_ADEC (1U << 7)
+#define LOG_IO (1U << 8)
+
+//#define VERBOSE (LOG_GENERAL|LOG_IO|LOG_IRQ|LOG_LEDS|LOG_BITS|LOG_RESET)
+//#define LOG_OUTPUT_STREAM std::cout
+
+#include "logmacro.h"
+
+#define LOGIRQ(...) LOGMASKED(LOG_IRQ, __VA_ARGS__)
+#define LOGRST(...) LOGMASKED(LOG_RESET, __VA_ARGS__)
+#define LOGBITS(...) LOGMASKED(LOG_BITS, __VA_ARGS__)
+#define LOGUI(...) LOGMASKED(LOG_UI, __VA_ARGS__)
+#define LOGLEDS(...) if (!machine().side_effects_disabled()) LOGMASKED(LOG_LEDS, __VA_ARGS__)
+#define LOGROM(...) if (!machine().side_effects_disabled()) LOGMASKED(LOG_ROM, __VA_ARGS__)
+#define LOGADEC(...) if (!machine().side_effects_disabled()) LOGMASKED(LOG_ADEC, __VA_ARGS__)
+#define LOGIO(...) if (!machine().side_effects_disabled()) LOGMASKED(LOG_IO, __VA_ARGS__)
+
+//**************************************************************************
+// MACROS / CONSTANTS
+//**************************************************************************
+
+#define M6800_TAG "mcu"
+
+namespace {
+
+INPUT_PORTS_START(alfaskop_s41_kb)
+ PORT_START("P15")
+ PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("KP 6") PORT_CODE(KEYCODE_6_PAD) PORT_CODE(KEYCODE_RIGHT) PORT_CHAR('6') PORT_CHAR(UCHAR_MAMEKEY(RIGHT)) // 77
+ PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("KP +") PORT_CODE(KEYCODE_PLUS_PAD) PORT_CHAR('+') // 78
+ PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("KP 5") PORT_CODE(KEYCODE_5_PAD) PORT_CHAR('5') // 76
+ PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("* PRINT") PORT_CODE(KEYCODE_TILDE) PORT_CHAR('*') PORT_CHAR(UCHAR_MAMEKEY(PRTSCR)) // 55
+ PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("R Shift") PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) // 54
+ PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_') // 53
+ PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(". :") PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR(':') // 52
+ PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F5") PORT_CODE(KEYCODE_F5) PORT_CHAR(UCHAR_MAMEKEY(F5)) // 63
+ PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F6") PORT_CODE(KEYCODE_F6) PORT_CHAR(UCHAR_MAMEKEY(F6)) // 64
+ PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_UNUSED ) // no scancode is sent
+ PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("CTRL") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_MAMEKEY(LCONTROL)) // 29
+ PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME(", ;") PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR(';') // 51
+ PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_D) PORT_CHAR('D') PORT_CHAR('d') // 32
+ PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_X) PORT_CHAR('X') PORT_CHAR('x') // 45
+ PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_C) PORT_CHAR('C') PORT_CHAR('c') // 46
+ PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_J) PORT_CHAR('J') PORT_CHAR('j') // 36
+
+ PORT_START("P14")
+ PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_UNUSED ) // 00 - keyboard error
+ PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("BREAK") PORT_CODE(KEYCODE_PAUSE) PORT_CHAR(UCHAR_MAMEKEY(PAUSE)) // 70
+ PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("KP 7") PORT_CODE(KEYCODE_7_PAD) PORT_CHAR('7') PORT_CHAR(UCHAR_MAMEKEY(HOME)) // 71
+ PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_UNUSED ) // ff - keyboard error
+ PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('^') PORT_CHAR('~') PORT_CHAR(']') // 27
+ PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR(0x00e5) PORT_CHAR(0x00c5) PORT_CHAR('[') // 26 å Å
+ PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_P) PORT_CHAR('P') PORT_CHAR('p') // 25
+ PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F1") PORT_CODE(KEYCODE_F1) PORT_CHAR(UCHAR_MAMEKEY(F1)) // 59
+ PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F2") PORT_CODE(KEYCODE_F2) PORT_CHAR(UCHAR_MAMEKEY(F2)) // 60
+ PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W') // 17
+ PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E') // 18
+ PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O') // 24
+ PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R') // 19
+ PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T') // 20
+ PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y') // 21
+ PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I') // 23
+
+ PORT_START("P13")
+ PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_NUMLOCK) PORT_CHAR(UCHAR_MAMEKEY(NUMLOCK)) // 69
+ PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_UNUSED ) // ff - keyboard error
+ PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("BS DEL") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8) PORT_CHAR(UCHAR_MAMEKEY(DEL)) // 14
+ PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('+') // 13
+ PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_') // 12
+ PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')') // 11
+ PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(') // 10
+ PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') // 02
+ PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("ESC") PORT_CODE(KEYCODE_ESC) PORT_CHAR(UCHAR_MAMEKEY(ESC)) // 01
+ PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@') // 03
+ PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') // 04
+ PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('*') // 09
+ PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') // 05
+ PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') // 06
+ PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('^') // 07
+ PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&') // 08
+
+ PORT_START("P12")
+ PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("KP 9") PORT_CODE(KEYCODE_9_PAD) PORT_CHAR('9') PORT_CHAR(UCHAR_MAMEKEY(PGUP)) // 73
+ PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("KP -") PORT_CODE(KEYCODE_MINUS_PAD) PORT_CHAR(UCHAR_MAMEKEY(MINUS_PAD)) // 74
+ PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("KP 8") PORT_CODE(KEYCODE_8_PAD) PORT_CODE(KEYCODE_UP) PORT_CHAR('8') PORT_CHAR(UCHAR_MAMEKEY(UP)) // 72
+ PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_TILDE) PORT_CHAR('`') PORT_CHAR('~') // 41
+ PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('\'') PORT_CHAR('"') // 40
+ PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':') // 39
+ PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L') // 38
+ PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F3") PORT_CODE(KEYCODE_F3) PORT_CHAR(UCHAR_MAMEKEY(F3)) // 61
+ PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F4") PORT_CODE(KEYCODE_F4) PORT_CHAR(UCHAR_MAMEKEY(F4)) // 62
+ PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q') // 16
+ PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("TAB") PORT_CODE(KEYCODE_TAB) PORT_CHAR(9) // 15
+ PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K') // 37
+ PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F') // 33
+ PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G') // 34
+ PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H') // 35
+ PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U') // 22
+
+ PORT_START("P11")
+ PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_DEL_PAD) PORT_CHAR(UCHAR_MAMEKEY(COMMA_PAD)) // 83
+ PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("RETURN") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) // 28
+ PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("KP 0") PORT_CODE(KEYCODE_0_PAD) PORT_CHAR('0') PORT_CHAR(UCHAR_MAMEKEY(INSERT)) // 82
+ PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_UNUSED ) // 89 - no key
+ PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_UNUSED ) // 86 - no key
+ PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_UNUSED ) // 87 - no key
+ PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_UNUSED ) // 88 - no key
+ PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F9") PORT_CODE(KEYCODE_F9) PORT_CHAR(UCHAR_MAMEKEY(F9)) // 67
+ PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F10") PORT_CODE(KEYCODE_F10) PORT_CHAR(UCHAR_MAMEKEY(F10)) // 68
+ PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_UNUSED ) // scan code ff - keyboard error
+ PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_BACKSLASH) PORT_CHAR('\\') // 43
+ PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("CAPS LOCK") PORT_CODE(KEYCODE_CAPSLOCK) PORT_CHAR(UCHAR_MAMEKEY(CAPSLOCK)) // 58
+ PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("SHIFT LOCK") PORT_CODE(KEYCODE_LALT) // 56
+ PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_UNUSED ) // 85 - no key
+ PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V') // 47
+ PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') // 57
+
+ PORT_START("P10")
+ PORT_BIT( 0x0001, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("KP 3") PORT_CODE(KEYCODE_3_PAD) PORT_CODE(KEYCODE_PGDN) // 81
+ PORT_BIT( 0x0002, IP_ACTIVE_LOW, IPT_UNUSED ) // ff - keyboard error
+ PORT_BIT( 0x0004, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("KP 2") PORT_CODE(KEYCODE_2_PAD) PORT_CODE(KEYCODE_DOWN) PORT_CHAR(UCHAR_MAMEKEY(2_PAD)) // 80
+ PORT_BIT( 0x0008, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("NEW LINE") PORT_CODE(KEYCODE_ENTER_PAD) PORT_CHAR(UCHAR_MAMEKEY(ENTER_PAD)) // 84 (programmable, default is 28)
+ PORT_BIT( 0x0010, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("KP 1") PORT_CODE(KEYCODE_1_PAD) PORT_CHAR(UCHAR_MAMEKEY(1_PAD)) // 79
+ PORT_BIT( 0x0020, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("KP 4") PORT_CODE(KEYCODE_4_PAD) PORT_CODE(KEYCODE_LEFT) PORT_CHAR('4') PORT_CHAR(UCHAR_MAMEKEY(LEFT)) // 75
+ PORT_BIT( 0x0040, IP_ACTIVE_LOW, IPT_UNUSED ) // ff - keyboard error
+ PORT_BIT( 0x0080, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F7") PORT_CODE(KEYCODE_F7) PORT_CHAR(UCHAR_MAMEKEY(F7)) // 65
+ PORT_BIT( 0x0100, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_NAME("F8") PORT_CODE(KEYCODE_F8) PORT_CHAR(UCHAR_MAMEKEY(F8)) // 66
+ PORT_BIT( 0x0200, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1) // 42
+ PORT_BIT( 0x0400, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z') // 44
+ PORT_BIT( 0x0800, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M') // 50
+ PORT_BIT( 0x1000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A') // 30
+ PORT_BIT( 0x2000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S') // 31
+ PORT_BIT( 0x4000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B') // 48
+ PORT_BIT( 0x8000, IP_ACTIVE_LOW, IPT_KEYBOARD ) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N') // 49
+INPUT_PORTS_END
+
+
+//-------------------------------------------------
+// ROM( alfaskop_s41_kb )
+//-------------------------------------------------
+
+ROM_START( alfaskop_s41_kb )
+ ROM_REGION( 0x800, M6800_TAG, 0 )
+ ROM_LOAD( "kbc_e34066_0000_ic3.bin", 0x000, 0x800, CRC(a1232241) SHA1(45d1b038bfbd04e1b7e3718a27202280c5257989) )
+ ROM_REGION( 0x20, "ad_rom", 0 ) // Address decoder
+ ROM_LOAD( "kbc_e34066_0000_ic4_e3405970280400.bin", 0x00, 0x20, CRC(f26acca3) SHA1(ac8c607d50bb588c1da4ad1602665c785ebd29b3) )
+ROM_END
+
+} // anonymous namespace
+
+//**************************************************************************
+// DEVICE DEFINITIONS
+//**************************************************************************
+
+DEFINE_DEVICE_TYPE(ALFASKOP_S41_KB, alfaskop_s41_keyboard_device, "alfaskop_s41_kb", "Alfaskop 4110 keyboard")
+
+//**************************************************************************
+// LIVE DEVICE
+//**************************************************************************
+
+//-------------------------------------------------
+// alfaskop_s41_keyboard_device - constructor
+//-------------------------------------------------
+
+alfaskop_s41_keyboard_device::alfaskop_s41_keyboard_device(
+ machine_config const &mconfig,
+ char const *tag,
+ device_t *owner,
+ uint32_t clock)
+ : device_t(mconfig, ALFASKOP_S41_KB, tag, owner, clock)
+ , m_mcu(*this, M6800_TAG)
+ , m_mc6846(*this, "mc6846")
+ , m_rows(*this, "P1%u", 0)
+ , m_txd_cb(*this)
+ , m_leds_cb(*this)
+ , m_rxd_high(true)
+ , m_txd_high(true)
+ , m_hold(true)
+ , m_col_select(0)
+ , m_p1(0)
+ , m_leds(0)
+{
+}
+
+WRITE_LINE_MEMBER(alfaskop_s41_keyboard_device::rxd_w)
+{
+ LOGBITS("KBD bit presented: %d\n", state);
+ //m_rxd_high = CLEAR_LINE != state;
+}
+
+// WRITE_LINE_MEMBER(alfaskop_s41_keyboard_device::hold_w)
+// {
+// m_hold = CLEAR_LINE == state;
+// }
+
+WRITE_LINE_MEMBER(alfaskop_s41_keyboard_device::rst_line_w)
+{
+ if (state == CLEAR_LINE)
+ {
+ m_mcu->set_input_line(INPUT_LINE_RESET, CLEAR_LINE);
+ LOGRST("KBD: Keyboard mcu reset line is cleared\n");
+ }
+ else
+ {
+ m_mcu->set_input_line(INPUT_LINE_RESET, ASSERT_LINE);
+ LOGRST("KBD: Keyboard mcu reset line is asserted\n");
+ }
+}
+
+//-------------------------------------------------
+// device_start - device specific startup
+//-------------------------------------------------
+
+void alfaskop_s41_keyboard_device::device_start()
+{
+ m_txd_cb.resolve_safe();
+ m_leds_cb.resolve_safe();
+
+ save_item(NAME(m_rxd_high));
+ save_item(NAME(m_txd_high));
+ save_item(NAME(m_col_select));
+
+ m_rxd_high = true;
+ m_txd_high = true;
+ m_col_select = 0;
+}
+
+
+
+//-------------------------------------------------
+// device_add_mconfig - add device configuration
+//-------------------------------------------------
+
+void alfaskop_s41_keyboard_device::device_add_mconfig(machine_config &config)
+{
+ M6802(config, m_mcu, XTAL(3'579'545)); // Crystal verified from schematics
+ m_mcu->set_addrmap(AS_PROGRAM, &alfaskop_s41_keyboard_device::alfaskop_s41_kb_mem);
+
+ MC6846(config, m_mc6846, XTAL(3'579'545) / 4); // Driven by E from 6802 == XTAL / 4
+ m_mc6846->irq().set([this](bool state)
+ {
+ LOGIRQ(" [timer IRQ: %s] ", state == ASSERT_LINE ? "asserted" : "cleared");
+ m_mcu->set_input_line(M6802_IRQ_LINE, state);
+ });
+ m_mc6846->cp2().set([this](bool state){ LOG("CP2:%d\n", state); });
+ // MIA ID interrupt: m_mc6846->set_input_cp1(1);
+ m_mc6846->cto().set([this](bool state){ LOG("CTO:%d\n", state); }); // Not connected to anything
+}
+
+//-------------------------------------------------
+// input_ports - device-specific input ports
+//-------------------------------------------------
+
+ioport_constructor alfaskop_s41_keyboard_device::device_input_ports() const
+{
+ return INPUT_PORTS_NAME( alfaskop_s41_kb );
+}
+
+//-------------------------------------------------
+// ADDRESS_MAP( alfaskop_s41_kb_mem )
+//-------------------------------------------------
+
+void alfaskop_s41_keyboard_device::alfaskop_s41_kb_mem(address_map &map)
+{
+ map(0x0000, 0x007f).ram(); // Internal RAM
+ /* A 32 byte decoder ROM connects A0-A4 to A11, A12, A13, A15 and to an external port pin, A14 is not decoded!
+ * c3 c3 c3 c3 c3 c3 c3 c3 c3 c3 c3 c3 c3 c3 c3 c3 - if external port pin is low
+ * c3 c3 c3 c3 c5 c6 cb c3 d3 c3 c3 c3 c3 c3 43 f3 - if external port pin is high - normal operation
+ *
+ * Decoder rom byte bits as follows
+ * 0 - 0x01 Start scanning
+ * 1 - 0x02 read col
+ * 2 - 0x04 shift col clock
+ * 3 - 0x08 set lamp data
+ * 4 - 0x10 CS1 mc6846 I/O access - active low
+ * 5 - 0x20 CS0 mc6846 ROM access - active high
+ * 6 - 0x40 n/c?
+ * 7 - 0x80 to KBX
+ *
+ * F3 <- 0x0f <- 1-11 1 == b800-bfff, f800-ffff // 1111 0011 MC6846 Internal ROM access (CS0 - active high)
+ * 43 <- 0x0e <- 1-11 0 == b000-b7ff, f000-f7ff // 0100 0011
+ * c3 <- 0x0d <- 1-10 1 == a800-afff, e800-efff // 1100 0011
+ * c3 <- 0x0c <- 1-10 0 == a000-a7ff, e000-e7ff // 1100 0011
+ * c3 <- 0x0b <- 1-01 1 == 9800-9fff, d800-dfff // 1100 0011
+ * c3 <- 0x0a <- 1-01 0 == 9000-97ff, d000-d7ff // 1100 0011
+ * c3 <- 0x09 <- 1-00 1 == 8800-8fff, c800-cfff // 1100 0011
+ * d3 <- 0x08 <- 1-00 0 == 8000-87ff, c000-c7ff // 1101 0011 MC6846 Internal I/O access (CS1 - active high)
+
+ * c3 <- 0x07 <- 0-11 1 == 3800-3fff, 7800-7fff // 1100 0011
+ * cb <- 0x06 <- 0-11 0 == 3000-37ff, 7000-77ff // 1100 1011 Set lamp data
+ * c6 <- 0x05 <- 0-10 1 == 2800-2fff, 6800-6fff // 1100 0110 start scan
+ * c5 <- 0x04 <- 0-10 0 == 2000-27ff, 6000-67ff // 1100 0101 read col
+ * c3 <- 0x03 <- 0-01 1 == 1800-1fff, 5800-5fff // 1100 0011
+ * c3 <- 0x02 <- 0-01 0 == 1000-17ff, 5000-57ff // 1100 0011
+ * c3 <- 0x01 <- 0-00 1 == 0800-0fff, 4800-4fff // 1100 0011
+ * c3 <- 0x00 <- 0-00 0 == 0000-07ff, 4000-47ff // 1100 0011
+ */
+ map(0x0080, 0xffff).lrw8(NAME([this](address_space &space, offs_t offset) -> uint8_t
+ {
+ uint16_t addr = offset + 0x80;
+ uint8_t index = 0x10 | ((((addr & 0x8000) | ((addr & 0x3800) << 1)) >> 12) & 0x000f); // 0x10 | (((A15 | A13 | A12 | A11) >> 12)
+ uint8_t ret = 0;
+ LOGADEC("address_r %04x -> index %02x: %02x\n", offset + 0x80, index, memregion("ad_rom")->base ()[index]);
+ switch (memregion("ad_rom")->base ()[index])
+ {
+ case 0xf3:
+ ret = memregion(M6800_TAG)->base ()[addr & 0x07ff];
+ LOGROM(" - ROM %04x: %02x\n", addr & 0x7ff, ret);
+ break;
+ case 0xd3:
+ LOGIO(" - I/O read mc6846 %04x", addr & 0x07);
+ ret = m_mc6846->read(space, (offs_t)(addr & 0x07));
+ LOGIO(": %02x\n", ret);
+ break;
+ case 0xc3:
+ break; // Idle
+ default:
+ logerror(" - unmapped read access at %04x through %02x\n", addr, memregion("ad_rom")->base ()[index]);
+ }
+ return ret;
+ }),
+ NAME( [this](address_space &space, offs_t offset, uint8_t data)
+ {
+ uint16_t addr = offset + 0x80;
+ uint8_t index = 0x10 | ((((addr & 0x8000) | ((addr & 0x3800) << 1)) >> 12) & 0x000f); // 0x10 | (((A15 | A13 | A12 | A11) >> 12)
+ LOGADEC("address_w %04x -> index %02x: %02x\n", offset + 0x80, index, memregion("ad_rom")->base ()[index]);
+ switch (memregion("ad_rom")->base ()[index])
+ {
+ case 0xd3:
+ LOGIO(" - I/O write mc6846 %04x, %02x\n", addr & 0x07, data);
+ m_mc6846->write(space, (offs_t)(addr & 0x07), data);
+ break;
+ case 0xcb: // Leds
+ if (m_leds != data)
+ {
+ m_leds_cb(data); m_leds = data;
+ LOGLEDS(" - I/O write LEDs %04x, %02x\n", addr, data);
+ }
+ break;
+ case 0xc3:
+ break; // Idle
+ default:
+ logerror(" - unmapped write access at %04x, %02x through %02x\n", addr, data, memregion("ad_rom")->base ()[index]);
+ }
+ }));
+ // map(0xf800, 0xffff).rom().region(M6800_TAG,0);
+}
+
+//-------------------------------------------------
+// rom_region - device-specific ROM region
+//-------------------------------------------------
+
+const tiny_rom_entry *alfaskop_s41_keyboard_device::device_rom_region() const
+{
+ return ROM_NAME( alfaskop_s41_kb );
+}
diff --git a/src/mame/machine/alfaskop_s41_kb.h b/src/mame/machine/alfaskop_s41_kb.h
new file mode 100644
index 00000000000..8ac29df5f40
--- /dev/null
+++ b/src/mame/machine/alfaskop_s41_kb.h
@@ -0,0 +1,48 @@
+// license:BSD-3-Clause
+// copyright-holders:Joakim Larsson Edström
+#ifndef MAME_MACHINE_ALFASKOP_S41_KB_H
+#define MAME_MACHINE_ALFASKOP_S41_KB_H
+
+#pragma once
+
+#include "cpu/m6800/m6800.h"
+#include "machine/mc6846.h"
+
+DECLARE_DEVICE_TYPE(ALFASKOP_S41_KB, alfaskop_s41_keyboard_device)
+
+class alfaskop_s41_keyboard_device : public device_t
+{
+public:
+ auto txd_cb() { return m_txd_cb.bind(); }
+ auto leds_cb() { return m_leds_cb.bind(); }
+
+ alfaskop_s41_keyboard_device(machine_config const &mconfig, char const *tag, device_t *owner, uint32_t clock = 0);
+
+ DECLARE_INPUT_CHANGED_MEMBER(key);
+ DECLARE_WRITE_LINE_MEMBER(rxd_w);
+ //DECLARE_WRITE_LINE_MEMBER(hold_w);
+ DECLARE_WRITE_LINE_MEMBER(rst_line_w);
+
+protected:
+ virtual void device_start() override;
+ virtual void device_add_mconfig(machine_config &config) override;
+ virtual ioport_constructor device_input_ports() const override;
+ virtual tiny_rom_entry const *device_rom_region() const override;
+
+ required_device<m6802_cpu_device> m_mcu;
+ required_device<mc6846_device> m_mc6846;
+ required_ioport_array<6> m_rows;
+ devcb_write_line m_txd_cb; // Callback for KBD-> S41
+ devcb_write8 m_leds_cb; // Callback for all 8 leds -> layout
+
+ bool m_rxd_high; // state of Rx input line
+ bool m_txd_high; // state of Tx output line
+ bool m_hold;
+ uint16_t m_col_select;
+ uint8_t m_p1;
+ uint8_t m_leds;
+
+ void alfaskop_s41_kb_mem(address_map &map);
+};
+
+#endif // MAME_MACHINE_ALFASKOP_S41_KB_H