Fundamentals of Digital Logic and Microcomputer DesignRafi Systems, Incorporated, 1999 - 828 sayfa |
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Sayfa 241
... Status Register The status register , also known as the " processor status word register " or the " condition code register , " contains individual bits , with each bit having special significance . The bits in the status register are ...
... Status Register The status register , also known as the " processor status word register " or the " condition code register , " contains individual bits , with each bit having special significance . The bits in the status register are ...
Sayfa 463
... status 0010 D2 DO RCL AL , CL rotate switch status 0012 E6 F8 OUT PORTA , AL output to LED 0014 EB EC 0016 JMP REPEAT repeat LAB ENDS END #include < dos.h > #define PORTA 0x0F8 #define CNTLREG 0x0FE int main ( ) { int x ; while ( 1 ) ...
... status 0010 D2 DO RCL AL , CL rotate switch status 0012 E6 F8 OUT PORTA , AL output to LED 0014 EB EC 0016 JMP REPEAT repeat LAB ENDS END #include < dos.h > #define PORTA 0x0F8 #define CNTLREG 0x0FE int main ( ) { int x ; while ( 1 ) ...
Sayfa 488
... Status and instruction registers 23 15 16 - bit FLAGS register A 0 0000000 0 0000000 0 VM RF 0 NT IOPL OF DF IF TF SF ZF 0 AF 0 PF 1 CF + Virtual 8086 mode - X - Resume flag - X Nested task flag - X- VO privilage level - X - Overflow ...
... Status and instruction registers 23 15 16 - bit FLAGS register A 0 0000000 0 0000000 0 VM RF 0 NT IOPL OF DF IF TF SF ZF 0 AF 0 PF 1 CF + Virtual 8086 mode - X - Resume flag - X Nested task flag - X- VO privilage level - X - Overflow ...
İçindekiler
INTRODUCTION TO DIGITAL SYSTEMS | 1 |
NUMBER SYSTEMS AND CODES | 31 |
BOOLEAN ALGEBRA AND DIGITAL LOGIC GATES | 67 |
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16 bits 32 bits adder address register addressing modes arithmetic assembly language assembly language program Assume binary number block Boolean bus cycle byte cache chip clock cycle complement consider contains contents control unit data bus decimal decoder digits display DSACK1 DTACK EPROM example execution flags flip-flop floating-point full adder function hardware hexadecimal implemented index register input instruction set integer Intel interface interrupt K-map latch loaded logic diagram m₁ main memory memory address memory location microcomputer microprocessor microprogram minterms Motorola MOVE.W multiplication offset on-chip op-code operand output Pentium perform physical address pins pipeline pointer port PowerPC processor program counter provides reset result RISC sequence sequential circuit shown in Figure signal specified stack stored subroutine synchronous transistor truth table typical unsigned vector word zero