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heathkit/h89.cpp: Add SigmaSoft Interactive Graphics Controller (#11801)
* Add slot devices for the IGC with compatible ROMs * Add Ultimeth 2k ROM as an option for Sigmasoft clone
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,165 @@ | ||
| // license:BSD-3-Clause | ||
| // copyright-holders:Mark Garlanger | ||
| /*************************************************************************** | ||
| SigmaSoft Universal Parallel Interface Board | ||
| ****************************************************************************/ | ||
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| #include "emu.h" | ||
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| #include "sigmasoft_parallel_port.h" | ||
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| // | ||
| // Logging defines | ||
| // | ||
| #define LOG_REG (1U << 1) // Shows register setup | ||
| #define LOG_FUNC (1U << 2) // Function calls | ||
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| #define VERBOSE (0) | ||
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| #include "logmacro.h" | ||
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| #define LOGREG(...) LOGMASKED(LOG_REG, __VA_ARGS__) | ||
| #define LOGFUNC(...) LOGMASKED(LOG_FUNC, __VA_ARGS__) | ||
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| #ifdef _MSC_VER | ||
| #define FUNCNAME __func__ | ||
| #else | ||
| #define FUNCNAME __PRETTY_FUNCTION__ | ||
| #endif | ||
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| DEFINE_DEVICE_TYPE(SIGMASOFT_PARALLEL_PORT, sigmasoft_parallel_port, "sigmasoft_parallel_port", "SigmaSoft Universal Parallel Board"); | ||
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| sigmasoft_parallel_port::sigmasoft_parallel_port(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock): | ||
| device_t(mconfig, SIGMASOFT_PARALLEL_PORT, tag, owner, clock), | ||
| m_ctrl_r(*this, 0x00), | ||
| m_video_mem_r(*this, 0x00), | ||
| m_video_mem_w(*this), | ||
| m_io_lo_addr(*this), | ||
| m_io_hi_addr(*this), | ||
| m_window_lo_addr(*this), | ||
| m_window_hi_addr(*this), | ||
| m_ctrl_w(*this) | ||
| { | ||
| } | ||
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| void sigmasoft_parallel_port::video_mem_w(uint8_t val) | ||
| { | ||
| m_video_mem_w(val); | ||
| } | ||
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| void sigmasoft_parallel_port::io_lo_addr_w(uint8_t val) | ||
| { | ||
| m_io_lo_addr(val); | ||
| } | ||
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| void sigmasoft_parallel_port::io_hi_addr_w(uint8_t val) | ||
| { | ||
| m_io_hi_addr(val); | ||
| } | ||
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| void sigmasoft_parallel_port::window_lo_addr_w(uint8_t val) | ||
| { | ||
| m_window_lo_addr(val); | ||
| } | ||
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| void sigmasoft_parallel_port::window_hi_addr_w(uint8_t val) | ||
| { | ||
| m_window_hi_addr(val); | ||
| } | ||
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| void sigmasoft_parallel_port::ctrl_w(uint8_t val) | ||
| { | ||
| m_ctrl_w(val); | ||
| } | ||
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| void sigmasoft_parallel_port::write(offs_t reg, uint8_t val) | ||
| { | ||
| LOGFUNC("%s: reg: %d val: %d\n", FUNCNAME, reg, val); | ||
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| switch (reg) | ||
| { | ||
| case 0: | ||
| video_mem_w(val); | ||
| break; | ||
| case 1: | ||
| io_lo_addr_w(val); | ||
| break; | ||
| case 2: | ||
| io_hi_addr_w(val); | ||
| break; | ||
| case 3: | ||
| window_lo_addr_w(val); | ||
| break; | ||
| case 4: | ||
| window_hi_addr_w(val); | ||
| break; | ||
| case 5: | ||
| ctrl_w(val); | ||
| break; | ||
| case 6: | ||
| // TODO - Centronics interface | ||
| break; | ||
| case 7: | ||
| // TODO - Centronics interface | ||
| break; | ||
| } | ||
| } | ||
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| uint8_t sigmasoft_parallel_port::video_mem_r() | ||
| { | ||
| // get video memory value from igc device | ||
| return m_video_mem_r(); | ||
| } | ||
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| uint8_t sigmasoft_parallel_port::ctrl_r() | ||
| { | ||
| // get control register from igc device | ||
| return m_ctrl_r(); | ||
| } | ||
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| uint8_t sigmasoft_parallel_port::read(offs_t reg) | ||
| { | ||
| // default return for the h89 | ||
| uint8_t value = 0xff; | ||
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| switch (reg) | ||
| { | ||
| case 0: | ||
| value = video_mem_r(); | ||
| break; | ||
| case 1: | ||
| // TODO - Light Pen Low address | ||
| break; | ||
| case 2: | ||
| // TODO - Light Pen High address | ||
| break; | ||
| case 3: | ||
| // TODO - Left input device | ||
| break; | ||
| case 4: | ||
| // TODO - Right input device | ||
| break; | ||
| case 5: | ||
| // Control Register | ||
| value = ctrl_r(); | ||
| break; | ||
| case 6: | ||
| // TODO - Centronics interface | ||
| break; | ||
| case 7: | ||
| // TODO - Centronics interface | ||
| break; | ||
| } | ||
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| LOGFUNC("%s: reg: %d val: %d\n", FUNCNAME, reg, value); | ||
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| return value; | ||
| } | ||
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| void sigmasoft_parallel_port::device_start() | ||
| { | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,67 @@ | ||
| // license:BSD-3-Clause | ||
| // copyright-holders:Mark Garlanger | ||
| /*************************************************************************** | ||
| SigmaSoft Universal Parallel Interface Board | ||
| ****************************************************************************/ | ||
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| #ifndef MAME_HEATHKIT_SIGMASOFT_PARALLEL_PORT_H | ||
| #define MAME_HEATHKIT_SIGMASOFT_PARALLEL_PORT_H | ||
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| #pragma once | ||
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| class sigmasoft_parallel_port : public device_t | ||
| { | ||
| public: | ||
| sigmasoft_parallel_port(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock = 0); | ||
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| void write(offs_t reg, uint8_t val); | ||
| uint8_t read(offs_t reg); | ||
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| auto ctrl_r_cb() { return m_ctrl_r.bind(); } | ||
| auto video_mem_r_cb() { return m_video_mem_r.bind(); } | ||
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| auto video_mem_cb() { return m_video_mem_w.bind(); } | ||
| auto io_lo_cb() { return m_io_lo_addr.bind(); } | ||
| auto io_hi_cb() { return m_io_hi_addr.bind(); } | ||
| auto window_lo_cb() { return m_window_lo_addr.bind(); } | ||
| auto window_hi_cb() { return m_window_hi_addr.bind(); } | ||
| auto ctrl_cb() { return m_ctrl_w.bind(); } | ||
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| protected: | ||
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| virtual void device_start() override; | ||
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| uint8_t video_mem_r(); | ||
| void video_mem_w(uint8_t val); | ||
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| void io_lo_addr_w(uint8_t val); | ||
| void io_hi_addr_w(uint8_t val); | ||
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| void window_lo_addr_w(uint8_t val); | ||
| void window_hi_addr_w(uint8_t val); | ||
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| void ctrl_w(uint8_t val); | ||
| uint8_t ctrl_r(); | ||
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| private: | ||
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| // Reads | ||
| devcb_read8 m_ctrl_r; | ||
| devcb_read8 m_video_mem_r; | ||
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| // Writes | ||
| devcb_write8 m_video_mem_w; | ||
| devcb_write8 m_io_lo_addr; | ||
| devcb_write8 m_io_hi_addr; | ||
| devcb_write8 m_window_lo_addr; | ||
| devcb_write8 m_window_hi_addr; | ||
| devcb_write8 m_ctrl_w; | ||
| }; | ||
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| DECLARE_DEVICE_TYPE(SIGMASOFT_PARALLEL_PORT, sigmasoft_parallel_port) | ||
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| #endif // MAME_HEATHKIT_SIGMASOFT_PARALLEL_PORT_H |
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