《ARM技术及其应用》课程教学资源（文献资料）arm201906

Review-lLDTheAArch64SLAA64SLProgrammers'Model A64 SLMemoryModel？A64VMSAA64SystemRegisterExceptionentry?(PC+4→ELR,PSTATE→SPSR）Exceptionreturn?(ELRPC,SPSRPSTATE)ARM062019-3-21

Review – II D The AArch64 SLA  A64 SL Programmers’ Model  A64 SL Memory Model  A64 VMSA  A64 System Register ARM06 2019-3-21 1 Exception entry? (PC+4→ELR, PSTATE→SPSR) Exception return? (ELR→PC, SPSR→PSTATE)

ARMProgramming1AssemblyModule 2Procedure Call Standard3MixingProgramming 4 Toolchain Introduction5SummaryExercisesARM062019-3-21

ARM Programming ARM06 2019-3-21 2  1 Assembly Module  2 Procedure Call Standard  3 Mixing Programming  4 Toolchain Introduction  5 Summary  Exercises

合1AssemblyModule 1.1 ARM Assembly Module 1.2 GNU Assembly ModulearmARMO62019-3-21

1 Assembly Module ARM06 2019-3-21 3  1.1 ARM Assembly Module  1.2 GNU Assembly Module

arm1.1ARMAssemblyModule 1.1.1 Assembly line 1.1.2 Assembly moduleARM062019-3-21

1.1 ARM Assembly Module ARM06 2019-3-21 4  1.1.1 Assembly line  1.1.2 Assembly module

1.1.1 Assembly lineARM062019-3-21

1.1.1 Assembly line ARM06 2019-3-21 5

[symbol)[instruction|pseudo|directive](;comment)All threesectionsof the sourceline areoptional lnstructionmnemonics,pseudo-instructions,directives,andsymbolicregister names can be written in all uppercase or all lowercase,butnot mixedLabels and comments can be in uppercase or lowercase, or mixedARMO62019-3-21

{symbol} {instruction|pseudo|directive} {;comment} ARM06 2019-3-21 6  All three sections of the source line are optional  Instruction mnemonics, pseudo-instructions, directives, and symbolic register names can be written in all uppercase or all lowercase, but not mixed  Labels and comments can be in uppercase or lowercase, or mixed

[symbol)[instruction|pseudo|directive](;comment)symbolis usually alabel州 symbol must begin in the first columnARMO62019-3-21

{symbol} {instruction|pseudo|directive} {;comment} ARM06 2019-3-21 7  symbol is usually a label  symbol must begin in the first column

[symbol)[instruction|pseudo|directive](;comment) Instructions,pseudo-instructions, and directives must be preceded bywhitespace,such as a space or atab,irrespectiveof whetherthereisaprecedinglabel ornotARMO62019-3-21

{symbol} {instruction|pseudo|directive} {;comment} ARM06 2019-3-21 8  Instructions, pseudo-instructions, and directives must be preceded by white space, such as a space or a tab, irrespective of whether there is a preceding label or not

[symbol)[instruction|pseudo|directive](;comment?Comment is the final part of a source line The first semicolon on a line marks the beginning of a comment exceptwherethe semicolon appearsinside a string literalARMO62019-3-21

{symbol} {instruction|pseudo|directive} {;comment} ARM06 2019-3-21 9  Comment is the final part of a source line  The first semicolon on a line marks the beginning of a comment except where the semicolon appears inside a string literal

Example-1/210AREAA64eX，CODE，READONLY:Namethisblockof codeA64exsymbolENTRY:Mark first instruction to executeinstructioncommentstartMOVwo,#10Set up parametersMOVw1, #3ADDwo, wo, w1;wO=wO+WIstopMOVx1，#0x26MOVKx1，#2，LSL#16STRx1,[sp,#0]ADP_Stopped_ApplicationExitMOVx0,#0STRx0，[sp,#8]Exit status codeMOVx1,spxl contains the address of parameter blockMOVwo,#0x18ange1_SwIreason_ReportExceptionHLT0xf000AArch64semihostingEND;Mark endoffileARM062019-3-21

Example - 1/2 ARM06 2019-3-21 10 symbol instruction comment