Fundamentals of Digital Logic and Microcomputer Design |
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Sayfa 393
1 An Example of 8086 Memory Segments The ES register points to the extra
segment in which data ( in excess of 64 KB pointed to by the DS ) is stored .
String instructions always use the ES and DI to determine the 20 - bit physical
address for ...
1 An Example of 8086 Memory Segments The ES register points to the extra
segment in which data ( in excess of 64 KB pointed to by the DS ) is stored .
String instructions always use the ES and DI to determine the 20 - bit physical
address for ...
Sayfa 402
For example , if [ DS ] = 2000H , ( 20010 ] = 0200H , and ( 20012 ] = 0100H , then
, after LDS SI , [ 0010H ) , SI and DS will contain 0200H and 0100H , respectively
. In the 8086 , the SP is decremented by 2 for PUSH and incremented by 2 for ...
For example , if [ DS ] = 2000H , ( 20010 ] = 0200H , and ( 20012 ] = 0100H , then
, after LDS SI , [ 0010H ) , SI and DS will contain 0200H and 0100H , respectively
. In the 8086 , the SP is decremented by 2 for PUSH and incremented by 2 for ...
Sayfa 404
For example , if ( AX ] = 002016 , [ BX ] = 030016 , CF = 1 , [ DS ] = 202016 , and [
20500 ] = 010016 , then , after ADC AX , ( BX ) , the contents of register AX =
0020 + 0100 + 1 = 012116 . All flags are affected . DIV mem / reg performs
unsigned ...
For example , if ( AX ] = 002016 , [ BX ] = 030016 , CF = 1 , [ DS ] = 202016 , and [
20500 ] = 010016 , then , after ADC AX , ( BX ) , the contents of register AX =
0020 + 0100 + 1 = 012116 . All flags are affected . DIV mem / reg performs
unsigned ...
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NUMBER SYSTEMS AND CODES | 31 |
BOOLEAN ALGEBRA AND DIGITAL LOGIC GATES | 67 |
SEQUENTIAL LOGIC DESIGN | 171 |
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addition address register addressing modes assembly asserted Assume base basic binary bits block branch byte cache called carry chip circuit clear clock combinational complement condition connected consider contains contents converter counter cycle decoder determine device diagram digits displacement effective enable example exception execution external field Figure flags flip-flop four function gate hardware HIGH immediate implemented indicates indirect Initialize input instruction interface interrupt K-map language lines loaded logic main memory means memory microcomputer microprocessor mode MOVE multiplication Note obtained offset operand operation output Pentium perform pins placed pointer port processing processor reset result segment sequence shift shown in Figure shows signal signed specified stack starting stored transfer typical unit vector Write zero