Thiết kế và lập trình hệ thống - Chương 22

... BALTIMORE COUNTY1 9 6 6Arithmetic Operationssub eax, ebxdec edi;Subs registers - Carry flag.sbb ecx, ebx;eax=eax-ebxcmp al, 10Hjae LABEL1;Jump if equal or below.jbe LABEL2;if ecx==eax, eax=edx ... Resultxor ah, ch ;ah=ah XOR chtest al, 4jz LABEL;Jump to LABEL if bit 2 is zero.;Tests bit 2 in al -- 00000100not ebxneg TEMP Systems Design & Programming 80x86 Assembly IV CMPE 3107 (Mar...

Ngày tải lên: 15/11/2012, 11:07

... page table entry addresses a 4KB section of main mem.• Offset: Specifies the byte in the page.11 1221 2231DirectoryPage TableOffset31 12Physical Address0Linear or Virtual AddressPage Directory or ... 2002)UMBCU M B CUNIVERSITY OF MARYLAND BALTIMORE COUNTY1 9 6 6Memory AddressingMemory Paging:11 1221 2231[00]0C[00]10 0x08A0Virtual Address:CR300010 ++0x000100300x050010x050000000x050010000x050010...

Ngày tải lên: 15/11/2012, 11:07

... 8):A7VCC2K x 8 EPROM123456789201918171615141310271611 1221 2223 24A6A5A4A3A2A1A0GNDO0O1O2A8A9VPPCSA10PD/PGMO7O6O5O4O3Pin(s)FunctionA0-A10PD/PGMCSO0-O7AddressPower down/ProgramChip SelectOutputsChip ... 10ns.A7VCC2K x 8 SRAM123456789201918171615141310TMS401611 1221 2223 24A6A5A4A3A2A1A0GNDDQ1DQ2DQ3A8A9WGA10SDQ8DQ7DQ6DQ5DQ4Pin(s)FunctionA0-A10DQ0-DQ7G (OE)S (CS)AddressData In/Data OutRead Enabl...

Ngày tải lên: 15/11/2012, 11:07

... )X16G X( )-- -- - -- - -- - -- - -- - -- - -- - -X27X26X25X24X22X21X18+ + + + + +X16X15X21+ + +-- -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - -- - =X16X15X21+ ... 15.Therefore, no more than 2 bytes are needed independent of the data block size.CRCM X( )XnG X( )--...

Ngày tải lên: 15/11/2012, 11:07

... InterfaceI1I2I3I4I5I6I7I8I9I1016L8O1O2O3O4O5O6O7O8A29A30A31I1I2I3I4I5I6I7I8I9I1016L8O1O2O3O4O5O6O7O8A19A20A21A22A23A24A25A26A27A28A0A15O0O7......CEOE27512D0-D7D8-D15D15-D23D24-D31D56-D63D48-D55D40-D47D32-D39A3-A18MRDCA0A15O0O7......CEOE27512A0A15O0O7......CEOE27512A0A15O0O7......CEOE27512A0A15O0O7......CEOE27512A0A15O0O7......CEOE27512A0A15O0O7......CEOE27512A0A15O0O7......CEOE27512(64K ... p...

Ngày tải lên: 15/11/2012, 11:07

... lowest-num-bered memory location.floatstr db ’Float number -& gt; %f ’, 10, 0main1_str: db ’ Rectangular Areas’, 10, 0temp_buf: times 200 db 0temp_buf_size: equ $-temp_bufneg_exponent: dd -1 00301H302H303H12H34HLow-order ... (February 3, 2000 1 :22 am)UMBCU M B CUNIVERSITY OF MARYLAND BALTIMORE COUNTY1 9 6 6Assembly DirectivesASCII: Stored using an assembler directive db:Word-sized (dw...

Ngày tải lên: 15/11/2012, 11:07

... dlaxbxcxdxspbpdisiAccumulatorBase IndexCountDataStack PointerBase PointerDestination IndexSource Index16-bitregisters32-bitextensionsah alax8-bit16-bitnames Systems Design & Programming 80x86 Assembly I CMPE 3103 (Feb ... MARYLAND BALTIMORE COUNTY1 9 6 6Data Addressing Modes Base relative-plus-indexA second variation includes: mov eax, [ebx+edi+4] Scaled-indexA second variation includes:...

Ngày tải lên: 15/11/2012, 11:07

... constant is any 32-bit signed value.Base Relative-Plus-Index addressing:Effective address computed as:seg_base + base + index + constant.Designed to be used as a mechanism to address a two-dimensional ... Addressing ModesBase-Plus-Index addressing:Effective address computed as:seg_base + base + index.Base registers: Holds starting location of an array.• ebp (stack)• ebx (data)• Any 32-bit reg...

Ngày tải lên: 15/11/2012, 11:07

... 6✬✎✭✮✠✯✰✱✲✲✯✳✴✰✎✵MiscellaneousDataTransferOperations.INandOUT:Transfersabyte,wordordoublewordofdatafrom/toanI/Odeviceinto/outofAL,AXandEAX,respectively.Memoryoperationsarenotavailable(astheyareinINSandOUTS):Twoforms:•Fixed-portaddressing:8-bitportnumberencodedininstruction.8-bitvalueissign-extendedintoaddressbits 8-1 5.Addressbits1 6-3 1...

Ngày tải lên: 15/11/2012, 11:07

... CUNIVERSITY OF MARYLAND BALTIMORE COUNTY1 9 6 6✪✎✫✬✠✭✮✯✰✰✭✱✲✮✎✳Addition,Increment,Add-with-carryandExchange-and-add(80486):Contentsoftherightmost8bitsoftheFLAGSregistercanchange(+Overflow)forarithmeticandlogicinstructions.Flagsinclude:•Z(resultzero?)•C(carryout?)•A(halfcarryout?)•S(resultpositive?)•P(resulthasevenparity?)•O(overflowoccurred?) ✁✁AL✂✄...

Ngày tải lên: 15/11/2012, 11:07