6502/cc65
1
0
Fork 0
mirror of https://github.com/cc65/cc65.git synced 2025-02-08 11:31:34 +00:00
Code Issues Projects Releases Wiki Activity

Added libray to none target

Browse Source
This commit is contained in:
bauen1 2017-12-31 15:49:17 +01:00
parent fc5bf3f5e8
commit b08839cac4
No known key found for this signature in database
GPG Key ID: FF0AAF5E0812BA9C
2 changed files with 21 additions and 23 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
doc/customizing.sgml
View File

@ -302,23 +302,20 @@ also forcing a BRK instruction into the CPU.
<sect>Custom Run-Time Library Creation<p>
The next step in customizing the cc65 toolset is creating a run-time
library for the targeted hardware. The easiest way to do this is to
modify a standard library from the cc65 distribution. In this example,
there is no console I/O, mouse, joystick, etc. in the system, so it is
most appropriate to use the simplest library as the base, which is for
the Watara Supervision and is named &quot;supervision.lib&quot; in the
lib directory of the distribution.
library for the targeted hardware. The recommended way to do this is to
modify the platform-independent standard library of the cc65 distribution.
It is named &quot;none.lib&quot; in the lib directory of the distribution.
The only modification required is to replace the <tt>crt0</tt> module in
the supervision.lib library with custom startup code. This is simply
done by first copying the library and giving it a new name, compiling
the startup code with ca65, and finally using the ar65 archiver to
replace the module in the new library. The steps are shown below:
When using &quot;none.lib&quot; we need to supply our own <tt>crt0<tt>
module with custom startup code. This is simply done by first copying the
the library and giving it a new name, compiling the startup code with ca65,
and finally using the ar65 archiver to add the module to the new library.
The steps are shown below:
<tscreen><verb>
$ copy &quot;C:\Program Files\cc65\lib\supervision.lib&quot; sbc.lib
$ ca65 crt0.s
$ ar65 a sbc.lib crt0.o
cp /usr/local/share/cc65/lib/none.lib sbc.lib
ca65 crt0.s
ar65 a sbc.lib crt0.o
</verb></tscreen>
<sect>Interrupt Service Routine Definition<p>
@ -706,14 +703,14 @@ that can be used as the initialization data for the Xilinx Block RAM
used for code storage:
<tscreen><verb>
$ cc65 -t none -O --cpu 65sc02 main.c
$ ca65 --cpu 65sc02 main.s
$ ca65 --cpu 65sc02 rs232_tx.s
$ ca65 --cpu 65sc02 interrupt.s
$ ca65 --cpu 65sc02 vectors.s
$ ca65 --cpu 65sc02 wait.s
$ ld65 -C sbc.cfg -m main.map interrupt.o vectors.o wait.o rs232_tx.o
main.o sbc.lib
cc65 -t none -O --cpu 65sc02 main.c
ca65 --cpu 65sc02 main.s
ca65 --cpu 65sc02 rs232_tx.s
ca65 --cpu 65sc02 interrupt.s
ca65 --cpu 65sc02 vectors.s
ca65 --cpu 65sc02 wait.s
ld65 -C sbc.cfg -m main.map interrupt.o vectors.o wait.o
rs232_tx.o main.o sbc.lib
</verb></tscreen>
During the C-level code compilation phase (<tt>cc65</tt>), assumptions

3
libsrc/Makefile
View File

@ -32,7 +32,8 @@ TARGETS = apple2 \
sim6502 \
sim65c02 \
supervision \
telestrat
telestrat \
none
DRVTYPES = emd \
joy \