Texas Instruments TMS320C54x User Manual page 140

Example This example shows conditional assembly.
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6 If_4: .if
7 000000 0004
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12 If_5: .if
13 000001 000a
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18 If_6: .if
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21 000002 0008
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24 If_7: .if SYM1 = 2
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27 000003 0005
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Assemble Conditional Blocks
SYM1 .set 1
SYM2 .set 2
SYM3 .set 3
SYM4 .set 4
SYM4 = SYM2 * SYM2
.byte SYM4
.else
.byte SYM2 * SYM2 ; Unequal values
.endif
SYM1 <= 10
.byte 10
.else
.byte SYM1
.endif
SYM3 * SYM2 != SYM4 + SYM2
.byte SYM3 * SYM2
.else
.byte SYM4 + SYM4
.endif
.byte SYM1
.elseif SYM2 + SYM3 = 5
.byte SYM2 + SYM3
.endif
.if/.elseif/.else/.endif
; Equal values
; Less than / equal
; Greater than
; Unequal value
; Equal values
Assembler Directives 4-57