$round() built-in function of assembler creates problem

Mokan Kanna

Intellectual 580 points

for this definition in my assembly file:

.word $round(MAX_SINE_AMP * $sin(2 * 3.141592 / 360))

I get the following error thrown by assembler:

"SineTable.asm", ERROR! at line 16: [E0201] Illegal floating-point expression

If I change $round() to $cvi() as below, it assembles. no problem. it works. why?

.word $round(MAX_SINE_AMP * $sin(2 * 3.141592 / 360))

sayee

over 14 years ago

0 George Mock over 14 years ago

TI__Guru**** 251630 points

Please submit a test case which can be built on its own. Details are in the last part of the forum welcome message.

Thanks and regards,

-George

0 Archaeologist over 14 years ago

TI__Guru* 84285 points

The built-in function $round returns a floating-point value, not an integer. You need to use .float, not .word, or if you really want an integer, $cvi. The error message is unclear; I've entered defect report SDSCM00039510 to make the error message more clear.

 .float $round(MAX_SINE_AMP * $sin(2 * 3.141592 / 360))
 .word $cvi($round(MAX_SINE_AMP * $sin(2 * 3.141592 / 360)))

0 Mokan Kanna over 14 years ago in reply to Archaeologist

Intellectual 580 points

Thanks for the suggestion. It works. It is all natural to expect $round() to return a integer than a float.

sayee

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$round() built-in function of assembler creates problem