Re: Mixing ORCA/M and ORCA/C

[jlee@Bonnie.ICS.UCI.EDU ("Joseph T. Lee")]

In article <behrenss.735404706@hpalle9> Soenke Behrens writes:
>gudat@avalon.physik.unizh.ch (gudat henrik) writes:

>>Has anyone tried this: I want to call an ASM routine from C, but I need
>>to set the A,X,Y registers to a specific value. The assmebly code sets
>>the registers to new values and then returns to the C code. How can I
>>set the registers with a C statement without asm (if possible) commands?
>>And how can I read them?

>W/o ASM statements, you are stuck, at least as far as setting the regs goes.
>I'd have to check which registers are left alone by the subroutine-caller,,
>anyway. As for returning values of registers: You can do it with either A

I'm pretty sure that Orca/C leaves y-reg alone as I use y-reg to pass
screen offsets to my asm sprite routines.


>Soenke
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>(RACTER)                                   !  FIDO: 2:246/13 Soenke Behrens

Joseph
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