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hp/hp98x6.cpp: Support 3 new machines (#12599)

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New machines added as WORKING
-----------------------------------
Hewlett-Packard 9826A
Hewlett-Packard 9835A
Hewlett-Packard 9836C
This commit is contained in:
fulivi 2024-07-27 01:45:49 +02:00 committed by GitHub
parent 8f82bd0a7e
commit 8472b085c3
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GPG Key ID: B5690EEEBB952194
4 changed files with 1492 additions and 156 deletions
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1594
src/mame/hp/hp98x6.cpp
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48
src/mame/hp/hp98x6_upi.cpp
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@ -3,14 +3,14 @@
// **** High level emulation of 8041 UPI in HP98X6 systems ****
//
// Configuration jumpers I identified in RAM_POS_CFG_JUMPERS register:
// Configuration jumpers in RAM_POS_CFG_JUMPERS register:
//
// | Bit | Meaning |
// |------+---------------------------------------------------|
// | 7 | ID PROM is installed |
// | 6 | ? |
// | 5 | Enter key is named either "ENTER" or "RETURN" (?) |
// | 4..1 | ? |
// | 6 | UPI revision |
// | 5 | 0: HP-HIL keyboards not supported |
// | 4..1 | - |
// | 0 | Large (0) or small (1) keyboard |
//
// Sequence to read ID PROM:
@ -27,7 +27,6 @@
//
// TODO:
// - Find if FHS and delay timers are self canceling
// - Identify more configuration jumpers
#include "emu.h"
#include "hp98x6_upi.h"
@ -35,7 +34,7 @@
#include "speaker.h"
// Debugging
#define VERBOSE 1
#define VERBOSE 0
#include "logmacro.h"
@ -60,26 +59,6 @@ namespace {
// Device type definition
DEFINE_DEVICE_TYPE(HP98X6_UPI, hp98x6_upi_device, "hp98x6_upi", "UPI of HP98x6 systems")
// ID PROM for 9816A (it comes straight from O. De Smet's emulator)
static const uint8_t id_prom[] = {
0x3e,0x38,0x00,0x32,0x30,0x31,0x30,0x41,0x30,0x30,0x30,0x30,0x30,0x30,0x39,0x38,
0x31,0x36,0x41,0x20,0x20,0xff,0x01,0x02,0x03,0x04,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x00,
0x00,0x00,0x00,0x00,0x00,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff
};
// Positions in internal RAM
enum : uint8_t {
RAM_POS_0_R0,
@ -228,6 +207,7 @@ hp98x6_upi_device::hp98x6_upi_device(const machine_config &mconfig, const char *
, m_10ms_timer(*this, "timer")
, m_delay_timer(*this, "dly")
, m_input_delay_timer(*this, "inp_dly")
, m_idprom(*this, "idprom")
, m_irq1_write_func(*this)
, m_irq7_write_func(*this)
{
@ -456,8 +436,8 @@ void hp98x6_upi_device::device_reset()
m_ram[RAM_POS_0_R7_KEY_DOWN] = SCANCODE_NONE;
// Assume RESET key is down
m_ram[RAM_POS_RST_DEB_CNT] = R2_FLAGS1_DEB_INIT;
// PROM is present
m_ram[RAM_POS_CFG_JUMPERS] = BIT_MASK<uint8_t>(CFG_JUMPERS_PROM_BIT);
// PROM is present if m_idprom != nullptr
m_ram[RAM_POS_CFG_JUMPERS] = bool(m_idprom) ? BIT_MASK<uint8_t>(CFG_JUMPERS_PROM_BIT) : 0;
// Assume US English
m_ram[RAM_POS_LNG_JUMPERS] = 0;
m_ram[RAM_POS_1_R3_TIMER_STS] = 0;
@ -623,7 +603,7 @@ void hp98x6_upi_device::decode_cmd(uint8_t cmd)
// Read from ID PROM when enabled
if (m_ram[RAM_POS_READING_PROM] &&
m_ram[RAM_POS_1_R6_R_PTR] == RAM_POS_0_R1) {
m_ram[RAM_POS_0_R1] = id_prom[m_ram[RAM_POS_PROM_ADDR]];
m_ram[RAM_POS_0_R1] = m_idprom[m_ram[RAM_POS_PROM_ADDR]];
LOG("PROM @%02x=%02x\n", m_ram[RAM_POS_PROM_ADDR], m_ram[RAM_POS_0_R1]);
m_ram[RAM_POS_PROM_ADDR]++;
}
@ -659,9 +639,13 @@ void hp98x6_upi_device::decode_cmd(uint8_t cmd)
case CMD_RD_PROM_START:
// 1100'0001
// Start reading ID PROM
LOG("Start PROM read\n");
m_ram[RAM_POS_READING_PROM] = 1;
m_ram[RAM_POS_PROM_ADDR] = 0;
if (bool(m_idprom)) {
LOG("Start PROM read\n");
m_ram[RAM_POS_READING_PROM] = 1;
m_ram[RAM_POS_PROM_ADDR] = 0;
} else {
LOG("Attempt to read from non-existing PROM\n");
}
break;
case CMD_RD_PROM_STOP:
// 1100'0000

3
src/mame/hp/hp98x6_upi.h
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@ -55,6 +55,9 @@ private:
required_device<timer_device> m_delay_timer;
required_device<timer_device> m_input_delay_timer;
// ID PROM
optional_region_ptr<uint8_t> m_idprom;
devcb_write_line m_irq1_write_func;
devcb_write_line m_irq7_write_func;
uint8_t m_ram[64];

3
src/mame/mame.lst
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@ -19831,6 +19831,9 @@ hp9845t_de //
@source:hp/hp98x6.cpp
hp9816a //
hp9826a //
hp9836a //
hp9836c //
@source:hp/hp9k.cpp
hp9816 //