qemu_ioport.txt

本资料解释了部分Qemu和kvm的IO port指令

010F	w	leftmost character on display
010E	w	second character
....	w
0108	w	eighth character

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0130-013F ----	CompaQ SCSI adapter. alternate address at 0330

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0130-0133 ----	Adaptec 154xB/154xC SCSI adapter.
		alternate address at 0134, 0230, 0234, 0330 and 0334

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0134-0137 ----	Adaptec 154xB/154xC SCSI adapter.
		alternate address at 0130, 0230, 0234, 0330 and 0334

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0138-013F ----	PC radio by CoZet Info Systems
		The I/O address range is dipswitch selectable from:
		   038-03F and 0B0-0BF
		   078-07F and 0F0-0FF
		   138-13F and 1B0-1BF
		   178-17F and 1F0-1FF
		   238-23F and 2B0-2BF
		   278-27F and 2F0-2FF
		   338-33F and 3B0-3BF
		   378-37F and 3F0-3FF
		All of these addresses show a readout of FF in initial state.
		Once started, all of the addresses show	 FB, whatever might
		happen.

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0140-014F ----	SCSI (alternate Small Computer System Interface) adapter
		(1st at 0340-034F)

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0140-0157 ----	RTC (alternate Real Time Clock for XT)	 (1st at 0340-0357)

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015F	  ----	ARTEC Handyscanner A400Z.  alternate address at 35F.

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0170-0177 ----	HDC 2	(2nd Fixed Disk Controller)   same as 01Fx (ISA, EISA)

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0178-0179 ----	Power Management

0178	w	index selection for data port
0179	r/w	power management data

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0178-017F ----	PC radio by CoZet Info Systems
		The I/O address range is dipswitch selectable from:
		   038-03F and 0B0-0BF
		   078-07F and 0F0-0FF
		   138-13F and 1B0-1BF
		   178-17F and 1F0-1FF
		   238-23F and 2B0-2BF
		   278-27F and 2F0-2FF
		   338-33F and 3B0-3BF
		   378-37F and 3F0-3FF
		All of these addresses show a readout of FF in initial state.
		Once started, all of the addresses show	 FB, whatever might
		happen.

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01E8-01EF ----	System Control. Laptop chipset: Headland HL21 & Acer M5105

01ED	r/w	select internal register. Data to/from 01EF
01EE	r
01EF	r/w	reg.
		5  = 1000xxxx  for low CPU clock speed (4MHz on Morse/Mitac)
		   = 0xxxxxxx  for high CPU clock speed (16MHz on Morse/Mitac)

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01F0-01F7 ----	HDC 1	(1st Fixed Disk Controller)   same as 017x (ISA, EISA)

01F0	r/w	data register

01F1	r	error register
		diagnostic mode errors:
		 bit 7-3	reserved
		 bit 2-1 = 001	no error detected
			 = 010	formatter device error
			 = 011	sector buffer error
			 = 100	ECC circuitry error
			 = 101	controlling microprocessor error
		 operation mode:
		  bit 7	 = 1  bad block detected
			 = 0  block OK
		  bit 6	 = 1  uncorrectable ECC error
			 = 0  no error
		  bit 5	      reserved
		  bit 4	 = 1  ID found
			 = 0  ID not found
		  bit 3	      reserved
		  bit 2	 = 1  command completed
			 = 0  command aborted
		  bit 1	 = 1  track 000 not found
			 = 0  track 000 found
		  bit 0	 = 1  DAM not found
			 = 0  DAM found (CP-3022 always 0)

01F1	w	WPC/4  (Write Precompensation Cylinder divided by 4)

01F2	r/w	sector count
01F3	r/w	sector number
01F4	r/w	cylinder low
01F5	r/w	cylinder high

01F6	r/w	drive/head
		 bit 7	 = 1
		 bit 6	 = 0
		 bit 5	 = 1
		 bit 4	 = 0  drive 0 select
			 = 1  drive 1 select
		 bit 3-0      head select bits

01F7	r	status register
		 bit 7 = 1  controller is executing a command
		 bit 6 = 1  drive is ready
		 bit 5 = 1  write fault
		 bit 4 = 1  seek complete
		 bit 3 = 1  sector buffer requires servicing
		 bit 2 = 1  disk data read successfully corrected
		 bit 1 = 1  index - set to 1 each disk revolution
		 bit 0 = 1  previous command ended in an error

01F7	w	command register
		commands:
		 98 E5	 check power mode	(IDE)
		 90	 execute drive diagnostics
		 50	 format track
		 EC	 identify drive		(IDE)
		 97 E3	 idle			(IDE)
		 95 E1	 idle immediate		(IDE)
		 91	 initialize drive parameters
		 1x	 recalibrate
		 E4	 read buffer		(IDE)
		 C8	 read DMA with retry	(IDE)
		 C9	 read DMA without retry (IDE)
		 C4	 read multiplec		(IDE)
		 20	 read sectors with retry
		 21	 read sectors without retry
		 22	 read long with retry
		 23	 read long without retry
		 40	 read verify sectors with retry
		 41	 read verify sectors without retry
		 7x	 seek
		 EF	 set features		(IDE)
		 C6	 set multiple mode	(IDE)
		 99 E6	 set sleep mode		(IDE)
		 96 E2	 standby		(IDE)
		 94 E0	 standby immediate	(IDE)
		 E8	 write buffer		(IDE)
		 CA	 write DMA with retry	(IDE)
		 CB	 write DMA with retry	(IDE)
		 C5	 write multiple		(IDE)
		 E9	 write same		(IDE)
		 30	 write sectors with retry
		 31	 write sectors without retry
		 32	 write long with retry
		 33	 write long without retry
		 3C	 write verify		(IDE)
		 9A	 vendor unique		(IDE)
		 C0-C3	 vendor unique		(IDE)
		 8x	 vendor unique		(IDE)
		 F0-F4	 EATA standard		(IDE)
		 F5-FF	 vendor unique		(IDE)

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01F8	  ----	???

01F8	r/w	???
		bit 0: A20 gate control (set = A20 enabled, clear = disabled)

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01F9-01FF ----	PC radio by CoZet Info Systems
		The I/O address range is dipswitch selectable from:
		   038-03F and 0B0-0BF
		   078-07F and 0F0-0FF
		   138-13F and 1B0-1BF
		   178-17F and 1F0-1FF
		   238-23F and 2B0-2BF
		   278-27F and 2F0-2FF
		   338-33F and 3B0-3BF
		   378-37F and 3F0-3FF
		All of these addresses show a readout of FF in initial state.
		Once started, all of the addresses show	 FB, whatever might
		happen.

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0200-020F ----	Game port reserved I/O address space  
0200-0207 ----	Game port, eight identical addresses on some boards

0201	r	read joystick position and status
		 bit 7	status B joystick button 2 / D paddle button
		 bit 6	status B joystick button 1 / C paddle button
		 bit 5	status A joystick button 2 / B paddle button
		 bit 4	status A joystick button 1 / A paddle button
		 bit 3	B joystick Y coordinate	   / D paddle coordinate
		 bit 2	B joystick X coordinate	   / C paddle coordinate
		 bit 1	A joystick Y coordinate	   / B paddle coordinate
		 bit 0	A joystick X coordinate	   / A paddle coordinate

	w	fire joysticks four one-shots

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0200-02FF ----	Sunshine uPW48, programmer for EPROM version CPU's 8748/8749
		(4 bit DIP switch installable in the range 20x-2Fx)
0200-0203	adresses of the 8255 on the uPW48
0208-020B	adresses of ??? on the uPW48 (all showing zeros)


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0210-0217 ----	Expansion unit (XT)

0210	w	latch expansion bus data
	r	verify expansion bus data
0211	w	clear wait, test latch
	r	High byte data address
0212	r	Low byte data address
0213	w	0=enable,  1=disable expansion unit
0214	w	latch data  (receiver card port)
	r	read data   (receiver card port)
0215	r	High byte of address, then Low byte   (receiver card port)

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0220-0223 ---- Sound Blaster / Adlib port

0220	r/w	Left speaker -- Status / Address port
0221	w	Left speaker -- Data port
0222	r/w	Right speaker -- Status / Address port
		Address:
		    01 -- Enable waveform control
		    02 -- Timer #1 data
		    03 -- Timer #2 data
		    04 -- Timer control flags
		    08 -- Speech synthesis mode
		 20-35 -- Amplitude Modulation / Vibrato
		 40-55 -- Level key scaling / Total level
		 60-75 -- Attack / Decay rate
		 80-95 -- Sustain / Release rate
		 A0-B8 -- Octave / Frequency Number
		 C0-C8 -- Feedback / Algorithm
		 E0-F5 -- Waveform Selection
0223	w	Right speaker -- Data port

SeeAlso: 0388-0389

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0220-0227 ----	Soundblaster PRO and SSB 16 ASP

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0220-022F ----	Soundblaster PRO 2.0

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0220-022F ----	Soundblaster PRO 4.0
0220	r	left FM status port
0220	w	left FM music register address port (index)
0221	r/w	left FM music data port
0222	r	right FM status port
0222	w	right FM music register address port (index)
0223	r/w	right FM music data port
0224	w	mixer register address port (index)
0225	r/w	mixer data port
0226	w	DSP reset
0228	r	FM music status port
0228	w	FM music register address port (index)
0229	w	FM music data port
022A	r	DSP read data (voice I/O and Midi)
022C	w	DSP write data / write command
022C	r	DSP write buffer status (bit 7)
022E	r	DSP data available status (bit 7)

		The FM music is accessible on 0388/0389 for compatibility.

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0230-0233 ----	Adaptec 154xB/154xC SCSI adapter.
		alternate address at 0130, 0134, 0230, 0330 and 0334

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0234-0237 ----	Adaptec 154xB/154xC SCSI adapter.
		alternate address at 0130, 0134, 0230, 0330 and 0334

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0240-024F ----	Gravis Ultra Sound by Advanced Gravis
	 The I/O address range is dipswitch selectable from:
	   0200-020F and 0300-030F
	   0210-021F and 0310-031F
	   0220-022F and 0320-032F
	   0230-023F and 0330-033F
	   0240-024F and 0340-034F
	   0250-025F and 0350-035F
	   0260-026F and 0360-036F
	   0270-027F and 0370-037F

0240	w	Mix Control register
		 bit 6	   Control Register Select (see 024B)
		 bit 5	   Enable MIDI Loopback
		 bit 4	   Combine GF1 IRQ with MIDI IRQ
		 bit 3	   Enable Latches
		 bit 2	   Enable MIC IN
		 bit 1	   Disable LINE OUT
		 bit 0	   Disable LINE IN
0241	r	Read Data
	w	Trigger Timer
0246	r	IRQ Status Register
		 bit 7	   DMA TC IRQ
		 bit 6	   Volume Ramp IRQ
		 bit 5	   WaveTable IRQ
		 bit 3	   Timer 2 IRQ
		 bit 2	   Timer 1 IRQ
		 bit 1	   MIDI Receive IRQ
		 bit 0	   MIDI Transmit IRQ
0248	r/w	Timer Control Reg
		 Same a ADLIB Board (look at 0200)
0249	w	Timer Data
		 bit 7	   Reset Timr IRQ
		 bit 6	   Mask Timer 1
		 bit 5	   Mask Timer 2
		 bit 1	   Timer 2 Start
		 bit 0	   Timer 1 Start
024B	w	IRQ Control Register (0240 bit 6 = 1)
		 bit 6	   Combine Both IRQ
		 bit 5-3   MIDI IRQ Selector
			   = 000  No IRQ
			   = 001  IRQ 2
			   = 010  IRQ 5
			   = 011  IRQ 3
			   = 100  IRQ 7
			   = 101  IRQ 11
			   = 110  IRQ 12
			   = 111  IRQ 15
		 bit 2-0   GF1 IRQ Selector
			   = 000  No IRQ
			   = 001  IRQ 2
			   = 010  IRQ 5
			   = 011  IRQ 3
			   = 100  IRQ 7
			   = 101  IRQ 11
			   = 110  IRQ 12
			   = 111  IRQ 15
		DMA Control Register (0240 bit 6 = 0)
		 bit 6	   Combine Both IRQ
		 bit 5-3   DMA Select Register 2
			   = 000  No DMA
			   = 001  DMA 1
			   = 010  DMA 3
			   = 011  DMA 5
			   = 100  DMA 6
			   = 101  DMA 7 
		 bit 2-0   DMA Select Register 1
			   = 000  No DMA
			   = 001  DMA 1
			   = 010  DMA 3
			   = 011  DMA 5
			   = 100  DMA 6
			   = 101  DMA 7 
024F	r/w	Register Controls (rev 3.4+)

SeeAlso: 0340-034F, 0746
   
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0240-0257 ----	RTC (alternate Real Time Clock for XT)	 (1st at 0340-0357)
		(used by TIMER.COM v1.2 which is the 'standard' timer program)

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0258-025F ----	Intel Above Board