local variables

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MASM-Generated Code (1 of 2)BubbleSort PROCLOCAL temp:DWORD, SwapFlag:BYTE. . .retBubbleSort ENDPMASM generates the following code:BubbleSort PROCpush ebpmov ebp,espadd esp,0FFFFFFF8h. . .mov esp,ebppop ebpretBubbleSort ENDP; add -8 to ESPIrvine, Kip R. Assembly Language for Intel-Based Computers, 2003. 6
MASM-Generated Code (2 of 2)Diagram of the stack frame for the BubbleSortprocedure:return addressESPEBPEBPtemp [EBP - 4]SwapFlag [EBP - 8]Irvine, Kip R. Assembly Language for Intel-Based Computers, 2003. 7
Page 1 and 2: Assembly Language for Intel-BasedCo
Page 3 and 4: 8.2 Local Variables• Global varia
Page 5: Local VariablesExamples:LOCAL flagV
Page 9 and 10: Reserving Stack Space• Suppose SU
Page 11 and 12: Procedure Parameters• Two types o
Page 13 and 14: INVOKE Directive• The INVOKE dire
Page 15 and 16: INVOKE Examples (Cont.).dataval1 DW
Page 17 and 18: PROC Directive• The PROC directiv
Page 19 and 20: PROC Examples (2 of 3)FillArray rec
Page 21 and 22: PROTO Directive• Creates a proced
Page 23 and 24: PROTO Example• Prototype for the
Page 25 and 26: Passing by Value• When a procedur
Page 27 and 28: Passing by Reference: Example.datam
Page 29 and 30: Parameter Classifications• An inp
Page 31 and 32: Trouble-Shooting Tips (Cont.)• Sa
Page 33 and 34: 8.4 Stack Frames• Memory Models
Page 35 and 36: Memory Models• A program's memory
Page 37 and 38: Memory ModelsModeltinysmallMediumCo
Page 39 and 40: • stdcallLanguage Specifiers (Con
Page 41 and 42: Language Specifiers (Cont.)• C:
Page 43 and 44: Stack Frame Example (1 of 2).datasu
Page 45 and 46: Your turn . . .• Create a procedu
Page 47 and 48: Passing Arguments by Reference (1 o
Page 49 and 50: LEA Instruction• The LEA instruct
Page 51 and 52: Creating Local Variables• To expl
Page 53 and 54: Creating Local Variables: Example (

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