🚀 go-pugleaf

Hello,

I'm working on a programming project using the 96002 DSP. Currently
I'm using the Motorola Assembler. I have a programming question
and I would appreciated any comments/answers.

The system stack register seem very limited due to its size restriction
of 15 RAM locations. According to the manual it can handle up to 15
long int, 7 DO loops or 15 JSR's or a combinations of these. This would
make it seem rather easy to write a program with overflows the stack.
I wrote a function which has 4 nested DO loop. I am very careful when to
call it. It seem to me if I nest subroutine call and receive an interrupt,
I could get in trouble very easily. 

I don't use a C compiler. But I'm curious about how they handle subroutines
calls. Do they use a separate stack for parameters and local storage? Is
the Stack Register used for subroutine calls? Are nesting of subroutines
calls and used of hardware DO loop used sparingly?

Thanks in advance
Tony Denault
--
/------------------------------------------------------------------------\
| Tony Denault, Institute for Astronomy,  | denault@uhifa.ifa.hawaii.edu |
| 2680 Woodlawn Drive, Honolulu, HI 96789 |               (808) 956-8101 |
\------------------------------------------------------------------------/