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https://github.com/holub/mame
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Notetaker: hooked up more of the IOCPU I/O registers. Separated reset functions for IOCPU and EmulatorCPU. [Lord Nightmare]
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Lord-Nightmare
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58fdfe0fcc
commit
65b93c95c1
@ -98,6 +98,7 @@ public:
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UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
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// basic io
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DECLARE_WRITE16_MEMBER(IPConReg_w);
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DECLARE_WRITE16_MEMBER(FIFOReg_w);
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// uarts
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DECLARE_READ16_MEMBER(ReadKeyData_r);
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@ -116,9 +117,29 @@ public:
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DECLARE_READ16_MEMBER(iocpu_r);
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DECLARE_WRITE16_MEMBER(iocpu_w);
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DECLARE_DRIVER_INIT(notetakr);
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//variables
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//variables
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// IPConReg
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UINT8 m_BootSeqDone;
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UINT8 m_ProcLock;
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UINT8 m_CharCtr;
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UINT8 m_DisableROM;
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UINT8 m_CorrOn_q;
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UINT8 m_LedInd6;
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UINT8 m_LedInd7;
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UINT8 m_LedInd8;
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// FIFOReg
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UINT8 m_TabletYOn;
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UINT8 m_TabletXOn;
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UINT8 m_FrSel2;
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UINT8 m_FrSel1;
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UINT8 m_FrSel0;
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UINT8 m_SHConB;
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UINT8 m_SHConA;
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UINT8 m_SetSH;
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// resets
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void ip_reset();
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void ep_reset();
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// overrides
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virtual void machine_reset() override;
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@ -133,13 +154,13 @@ UINT32 notetaker_state::screen_update(screen_device &screen, bitmap_ind16 &bitma
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WRITE16_MEMBER(notetaker_state::IPConReg_w)
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{
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m_BootSeqDone = (data&0x80)?1:0;
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//m_ProcLock = (data&0x40)?1:0; // bus lock for this processor (hold other processor in wait state)
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//m_CharCtr = (data&0x20)?1:0; // battery charge control
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m_ProcLock = (data&0x40)?1:0; // bus lock for this processor (hold other processor in wait state)
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m_CharCtr = (data&0x20)?1:0; // battery charge control
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m_DisableROM = (data&0x10)?1:0; // disable rom at 0000-0fff
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//m_CorrOn = (data&0x08)?1:0; // CorrectionOn (ECC correction enabled); also LedInd5
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//m_LedInd6 = (data&0x04)?1:0;
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//m_LedInd7 = (data&0x02)?1:0;
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//m_LedInd8 = (data&0x01)?1:0;
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m_CorrOn_q = (data&0x08)?1:0; // CorrectionOn (ECC correction enabled); also LedInd5
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m_LedInd6 = (data&0x04)?1:0;
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m_LedInd7 = (data&0x02)?1:0;
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m_LedInd8 = (data&0x01)?1:0;
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popmessage("LEDS: CR1: %d, CR2: %d, CR3: %d, CR4: %d", (data&0x04)>>2, (data&0x08)>>3, (data&0x02)>>1, (data&0x01)); // cr1 and 2 are in the reverse order as expected, according to the schematic
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}
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@ -193,6 +214,19 @@ WRITE16_MEMBER( notetaker_state::KeyChipReset_w )
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m_kbduart->set_input_pin(AY31015_XR, 1); // ''
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}
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/* FIFO (DAC) Stuff and ADC stuff */
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WRITE16_MEMBER(notetaker_state::FIFOReg_w)
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{
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m_TabletYOn = (data&0x80)?1:0;
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m_TabletXOn = (data&0x40)?1:0;
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m_FrSel2 = (data&0x20)?1:0;
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m_FrSel1 = (data&0x10)?1:0;
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m_FrSel0 = (data&0x08)?1:0;
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m_SHConB = (data&0x04)?1:0;
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m_SHConA = (data&0x02)?1:0;
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m_SetSH = (data&0x01)?1:0;
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}
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/* EIA hd6402 */
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READ16_MEMBER( notetaker_state::ReadEIAData_r )
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{
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@ -363,7 +397,7 @@ static ADDRESS_MAP_START(notetaker_iocpu_io, AS_IO, 16, notetaker_state)
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AM_RANGE(0x4a, 0x4b) AM_MIRROR(0x7E10) AM_WRITE(LoadKeyData_w) // kbd uart data register
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AM_RANGE(0x4c, 0x4d) AM_MIRROR(0x7E10) AM_WRITE(KeyDataReset_w) // kbd uart ddr switch (data reset)
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AM_RANGE(0x4e, 0x4f) AM_MIRROR(0x7E10) AM_WRITE(KeyChipReset_w) // kbd uart reset
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//AM_RANGE(0x60, 0x61) AM_MIRROR(0x7E1E) AM_WRITE(FIFOReg_w) // DAC sample and hold and frequency setup
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AM_RANGE(0x60, 0x61) AM_MIRROR(0x7E1E) AM_WRITE(FIFOReg_w) // DAC sample and hold and frequency setup
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//AM_RANGE(0xa0, 0xa1) AM_MIRROR(0x7E18) AM_DEVREADWRITE("debug8255", 8255_device, read, write) // debugger board 8255
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//AM_RANGE(0xc0, 0xc1) AM_MIRROR(0x7E1E) AM_WRITE(FIFOBus_w) // DAC data write to FIFO
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//AM_RANGE(0x100, 0x101) AM_MIRROR(0x7E1E) AM_WRITE(SelDiskReg_w) I/O register (adc speed, crtc pixel clock enable, +5 and +12v relays for floppy, etc)
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@ -424,20 +458,58 @@ read from 0x44 (byte wide) in a loop forever (read keyboard fifo status)
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/* Emulator CPU */
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/*
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static ADDRESS_MAP_START(notetaker_emulatorcpu_mem, AS_PROGRAM, 16, notetaker_state)
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AM_RANGE(0x00000, 0x00fff) AM_RAM // actually a banked block of ram
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AM_RANGE(0x01000, 0x3ffff) AM_MIRROR(0xC0000) AM_RAM AM_BASE("mainram") // 256k of ram (less 4k), shared between both processors, mirrored 4 times
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AM_RANGE(0x00000, 0x01fff) AM_MIRROR(0xC0000) AM_RAM // actually a banked block of ram, 8k (4k words)
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AM_RANGE(0x02000, 0x3ffff) AM_MIRROR(0xC0000) AM_RAM AM_BASE("mainram") // 256k of ram (less 8k), shared between both processors, mirrored 4 times
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AM_RANGE(0xFFFC0, 0xFFFDF) AM_READWRITE(proc_illinst_r, proc_illinst_w)
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AM_RANGE(0xFFFE0, 0xFFFEF) AM_READWRITE(proc_control_r, proc_control_w)
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ADDRESS_MAP_END
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*/
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/* Machine Reset */
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/* Machine Reset; this emulates the full system reset, triggered by ExtReset' (cardcage pin <50>) or the PowerOnReset' circuit */
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void notetaker_state::machine_reset()
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{
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m_BootSeqDone = 0;
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m_DisableROM = 0;
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m_kbduart->set_input_pin(AY31015_SWE, 0); // status word outputs are permanently enabled (pin 16 SFD(SWE) tied low, active)
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ip_reset();
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ep_reset();
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}
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/* IP Reset; this emulates the IPReset' signal */
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void notetaker_state::ip_reset()
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{
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// not-really-reset related, set line on Keybaord UART
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m_kbduart->set_input_pin(AY31015_SWE, 0); // status word outputs are permanently enabled (pin 16 SFD(SWE) tied low, active)
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// reset the Keyboard UART
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m_kbduart->set_input_pin(AY31015_XR, 0); // MR - pin 21
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m_kbduart->set_input_pin(AY31015_XR, 1); // ''
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// reset the IPConReg latch at #f1
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m_BootSeqDone = 0;
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m_ProcLock = 0;
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m_CharCtr = 0;
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m_DisableROM = 0;
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m_CorrOn_q = 0;
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m_LedInd6 = 0;
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m_LedInd7 = 0;
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m_LedInd8 = 0;
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// reset the FIFOReg latch at #h9
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m_TabletYOn = 0;
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m_TabletXOn = 0;
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m_FrSel2 = 0;
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m_FrSel1 = 0;
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m_FrSel0 = 0;
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m_SHConB = 0;
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m_SHConA = 0;
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m_SetSH = 0;
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// Clear the DAC FIFO
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// write me!
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// stuff to reset on the display/eia board
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// write me!
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}
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/* EP Reset; this emulats the EPReset' signal */
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void notetaker_state::ep_reset()
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{
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}
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/* Input ports */
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static INPUT_PORTS_START( notetakr )
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INPUT_PORTS_END
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