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1. when accessing the port, the CPU uses the port address to locate the port. Because the chip where the port is located is connected to the CPU through the bus, the port address is transmitted through the address bus like the memory address. 2. In the PC system, the CPU can locate a maximum of 64 kB ports, and the port address range is 0 ~ 65535 3. Memory read/write commands such as mov, push, and pop cannot be used for reading and writing ports. There are only two read/write commands on the po

I want to write a fully functional character driver, but I still have to consider it. Record your initial attempt to drive the character In the absence of an operating system, you need to do the following to make the system respond to the keyboard: 1. Writing a keyboard interrupt program: When you press the key, the program will enter 2. Initialization of 8259a: When you press the key, the 8259a hardware is interrupted, allowing the CPU to enter the keyboard interrupt program 3. In the interrupt

with constants, BP or BX in square brackets, but do not allow Si and di in the same square brackets; ④ contains multiple registers in a square bracket, they can only be used for addition operations; ⑤ if the square brackets contain the base pointer BP, It implicitly uses the stack segment register SS to provide the segment base, otherwise it implicitly uses the data segment register DS to provide the segment base. 2. The textbook symbol, indicating that the content can be omitted.. LIST: pseudo

1. Data Transmission commands ── ─ they transmit data between the storage and registers, registers and input and output ports. 1. general data transmission commands. moV transfers words or bytes. movsx first extends the symbol and then transmits it. movzx is not extended before transmission. push pushes words into the stack. pop pops up the word stack. pusha pushes ax, CX, dx, BX, SP, BP, Si, di into the stack in sequence. popa pops up the stack of DI, Si, BP, SP, BX, dx, CX, and ax in sequence.

. Moeslund, T. B. and E. Granum (2001). "A Survey of Computer vision-based Human motion capture." Computer vision and Image understanding Bayi(3): 231-268. Moeslund, T. B., A. Hilton, et al. (2006). "A survey of Advances in vision-based human motion capture and analysis." Computer vision and Image understanding 104(2): 90-126. Turaga, P., R. Chellappa, et al. (2008). "Machine Recognition of Human acti

ECx, dword ptr [dwmovenum]SHR eax, ClRETMovebitr endp; //////////////////////////////////////// ///////////////////////////Bin2dec proc pbin: DWORD ; Argument checkMoV eax, dword ptr [pbin]Test eax, eaxJZ @ exitPush ESIMoV ESI, eaxXOR eax, eaxXOR edX, EDXClD@@:LodsbTest Al, AlJZ finalflag; FinalCMP Al, 30 h; 0JZ isbinCMP Al, 31 H; 1JZ isbinJnz @ B Isbin:Add edX,

This is exactly the same as the logic commands of Delphi. // Logical non-not: {not 1 = 0; not 0 = 1;} var bytenum: byte; begin // assign a value of 111111b (255); reverse: ASM mov Al, 11111111b {eax contains ax; ax contains al; Al is the low eight bits of eax} Not Al {returns 11111111} mov bytenum to the 0000000

Turn from: https://github.com/sujiongming/awesome-video-understanding Awesome Video Understanding Understanding video:perceiving Dynamic actions could is a huge advance in how software makes to the world. (from MIT Technology Review December 6, 2017) A List of resources for the video understanding. Most of papers can be searched by scholar.google.com. This list is updated on December 13th 2017. Video classification Action recognition video Captioning:will is updated temporal action Detection:w

Assume Cs: CodeCode segmentStart0: mov BX, 0MoV ax, 200 hMoV es, ax MoV ah, 2MoV Al, 3MoV CH, 0MoV Cl, 2MoV DH, 0MoV DL, 0 INT 13 HMoV ax, 200 hPUSH AXMoV ax, 0PUSH AXRetf Start1: JMP short startS1 dB '1. restart pc', 0, '2. start System ', 0, '3. clock ', 0, '4. set clock ', 0, '5. input error! ',' $ ', 0 Start: mov ax, 0b800hMoV es, axMoV ax, CSMoV ds, axMoV Si, 2 MoV DH, 10MoV DL, 40MoV BL, 160MoV BH, 0 S: mov