On Wed, Aug 08, 2007 at 09:20:50PM -0700, Colin Kuskie wrote:
> repeat isn't an operator, it's a function in this context.
> Describe what it does.
Actually, 'repeat' is an opcode here. The PIR statement
$S1 = repeat $S0, 3
is just syntactic sugar for the PASM operation
repeat $S1, $S0, 3
So, it's really an operation, not a function, at least in the way
that I tend to think of "operators" and "functions".
In PIR, if this were to be a function call -- i.e., a call to
a subroutine -- then it would be written as either
$S1 = 'repeat'($S0, 3) # preferred
$S1 = repeat($S0, 3) # also works if no 'repeat' symbol defined
In other words, subroutine calls in PIR _always_ contain parens.
Others may correct me on this, but I think that as a general
rule, any PIR statement of the form
target = opcode [arg1, arg2, ...]
is simply syntactic sugar for the PASM equivalent
opcode target [, arg1, arg2, ...]
Pm
