Path: csiph.com!news.swapon.de!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail
From: TRS-90 <matthewmpower@gmail.com>
Newsgroups: comp.sys.apple2.programmer
Subject: An Attempt at CC65
Date: Sun, 30 Jun 2024 01:01:12 GMT
Organization: A noiseless patient Spider
Lines: 43
Message-ID: <BSjnEMbtGSbpHPcpEKbl%matthewmpower@gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset="iso-8859-1"
Injection-Date: Sun, 30 Jun 2024 02:55:05 +0200 (CEST)
Injection-Info: dont-email.me; posting-host="c3714b2e3525a3481490ebe372d0c54a"; logging-data="200637"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX19Rl0cAV/z4iZpPUMkNYPEDRlSLmXmdhQE="
User-Agent: SNAP v1.2.2     (GSOS 6.0.1 (65816))
Cancel-Lock: sha1:TLUfhXihwQU0TxFrP9xSFsyEHvw=
Xref: csiph.com comp.sys.apple2.programmer:6311

So I imagine I'm so far in the wrong direction
that I may earn a laugh, but that's ok!

I'm trying to recreate this Applesoft line in 
C with CC65:

GR : PRINT "GR SET"

So I realized that there does not seem to be a 
GR command in CC65 and after digging around in 
a disassembly listing I now have (again in BASIC):

CALL -1216 : PRINT "GR SET" REM $FB40

So an least I'm calling the sub without the Applesoft command. Works good.

Here's my C attempt. It freezes the system and never gets to the print command:
------------------------------
/* cl65 -O -t apple2enh setgr.c */
# include <stdio.h>

void gr() {
     asm ("jsr FB40");
}

int main() {
     gr();
     printf("GR SET\n");
     return 0;
}
-------------------------------

I guess I thought I could just switch languages,
compile, and run. I thought I could rewrite some
of my silly BASIC programs in C and gain some speed
and then I realized it may not be that simple. I've
seen the TGI drivers. Is that how to get into GR and
HGR and such?

Thanks all!

TRS-90