Chapter 10 Writing Assembler Control Statements
198 Conditional Assembly
10.4.4 #iflt, #ifle
Syntax
Syntax for #iflt
Syntax for #ifle
#iflt
expression
#ifle
expression
block1
block1
[#else
[#else
block2]
block2]
#endif
#endif
Functional description
#iflt
If the value of expression is negative, block1 will be assembled. If it is not negative and an #else
directive has been coded, block2 will be assembled.
#ifle
If the value of expression is 0 or negative, block1 will be assembled. If it is positive and an #else
directive has been coded, block2 will be assembled.
Usage example
The first example will be of #iflt. A source file is shown below. The "size-16" expression of the #iflt is
not negative, so block 2 is assembled
MNXXX
equ
32
;
dsize
macro
size
#iflt
size-
32
mov
0x01, D0
#else
mov
0x02, D0
#endif
endm
_TEXT
section
CODE, PUBLIC, 1
dsize
MNXXX
Содержание PanaXSeries MN1030 Series
Страница 1: ...MICROCOMPUTER MN1030 MN1030 Series Cross Assembler User s Manual Pub No 13110 120E ...
Страница 2: ......
Страница 13: ...1 Chapter 1 Getting Started ...
Страница 25: ...2 Chapter 2 Program Development Flow ...
Страница 32: ...Chapter 2 Program Development Flow 20 Programming with Assembler ...
Страница 33: ...3 Chapter 3 Introduction to Operation ...
Страница 54: ...Chapter 3 Introduction to Operation 42 Conditional Assembly and Linking ...
Страница 55: ...4 Chapter 4 Optimization ...
Страница 71: ...5 Chapter 5 Using Assembler ...
Страница 95: ...6 Chapter 6 Using Linker ...
Страница 128: ...Chapter 6 Using Linker 116 Instruction RAM Support ...
Страница 129: ...7 Chapter 7 Types of Source Statements ...
Страница 138: ...Chapter 7 Type of Source Statements 126 Blank Statements ...
Страница 139: ...8 Chapter 8 Writing Source Statements ...
Страница 157: ...9 Chapter 9 Writing Machine Language Instruction Statements and Directive Statements ...
Страница 192: ...Chapter 9 Writing Machine Language Instructions and Directive Statements 180 Writing Directive Statements ...
Страница 193: ...10 Chapter 10 Writing Assembler Control Statements ...
Страница 217: ...11 Chapter 11 Writing Macro Control Statements ...
Страница 236: ...Chapter 11 Writing Macro Control Statements 224 irpc ...
Страница 237: ...12 Chapter 12 List of Machine Language Instructions ...
Страница 261: ...13 Chapter 13 Error Messages ...
Страница 276: ...Chapter 13 Error Messages 264 Linker Errors ...
Страница 277: ...14 Chapter 14 Readinig List Files ...
Страница 285: ...15 Chapter 15 Using Library Manager ...
Страница 309: ...16 Chapter 16 Notes on Operating Environment ...
Страница 321: ...17 Chapter 17 Appendix ...
Страница 338: ... 4 Index ...