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casio/fp200.cpp: implement NVRAM

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This commit is contained in:
angelosa 2024-06-29 15:48:27 +02:00
parent c5086e6851
commit 3f71ee678f
1 changed files with 6 additions and 4 deletions
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10
src/mame/casio/fp200.cpp
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@ -6,10 +6,10 @@
FP-200 (c) 1982 Casio
TODO:
- backup RAM;
- cassette i/f, glued together by discrete;
- serial i/f;
- FDC (requires test program that Service manual mentions);
- ROM/RAM slot interface;
- mini plotter printer (FP-1011PL)
- graphic printer (FP-1012PR)
@ -20,6 +20,7 @@ Notes:
#include "emu.h"
#include "cpu/i8085/i8085.h"
#include "machine/nvram.h"
#include "machine/rp5c01.h"
#include "emupal.h"
#include "screen.h"
@ -37,6 +38,7 @@ public:
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_rtc(*this, "rtc")
, m_nvram(*this, "nvram")
, m_ioview(*this, "ioview")
, m_key(*this, "KEY%X", 0U)
, m_gfxrom(*this, "chargen")
@ -50,6 +52,7 @@ private:
// devices
required_device<i8085a_cpu_device> m_maincpu;
required_device<rp5c01_device> m_rtc;
required_device<nvram_device> m_nvram;
memory_view m_ioview;
required_ioport_array<16> m_key;
required_memory_region m_gfxrom;
@ -220,7 +223,7 @@ void fp200_state::main_map(address_map &map)
{
map(0x0000, 0x7fff).rom(); // basic & cetl
// TODO: 1 waitstate penalty for accessing any RAM
map(0x8000, 0x9fff).ram(); // internal RAM
map(0x8000, 0x9fff).ram().share("nvram"); // internal RAM
// 0xa000, 0xffff exp RAM (FP-201RAM)
map(0xa000, 0xbfff).ram();
map(0xc000, 0xdfff).ram();
@ -412,7 +415,6 @@ int fp200_state::sid_r()
void fp200_state::fp200(machine_config &config)
{
/* basic machine hardware */
I8085A(config, m_maincpu, MAIN_CLOCK);
m_maincpu->set_addrmap(AS_PROGRAM, &fp200_state::main_map);
m_maincpu->set_addrmap(AS_IO, &fp200_state::main_io);
@ -420,8 +422,8 @@ void fp200_state::fp200(machine_config &config)
m_maincpu->out_sod_func().set(FUNC(fp200_state::sod_w));
RP5C01(config, "rtc", XTAL(32'768));
NVRAM(config, "nvram", nvram_device::DEFAULT_ALL_0);
/* video hardware */
screen_device &screen(SCREEN(config, "screen", SCREEN_TYPE_LCD));
screen.set_refresh_hz(60);
screen.set_vblank_time(ATTOSECONDS_IN_USEC(2500));