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Added docs for all the tgi functions and improved Lynx documentation

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(contributed by Karri Kaksonen).


git-svn-id: svn://svn.cc65.org/cc65/trunk@4301 b7a2c559-68d2-44c3-8de9-860c34a00d81
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uz
2009-10-02 14:29:17 +00:00
parent b75bdc65d3
commit 6c0960819e
2 changed files with 832 additions and 10 deletions
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21
doc/lynx.sgml
View File

@@ -46,8 +46,7 @@ that shows how to create a complete bootable Lynx cart.
<sect>Memory layout<p>
cc65 generated programs with the default setup run with the I/O area and the
kernal enabled, which gives a usable memory range of &dollar;400 - &dollar;BE3F.
All boot ROM entry points may be called directly without additional code.
kernal enabled, which gives a usable memory range of &dollar;400 - &dollar;C038.
Special locations:
@@ -63,7 +62,7 @@ Special locations:
'?' for all keys down at the same time.
<tag/Stack/
The C runtime stack is located at &dollar;BE3F and growing downwards.
The C runtime stack is located at &dollar;C037 and growing downwards.
<tag/Heap/
The C heap is located at the end of the program and grows towards the C
@@ -81,7 +80,6 @@ Programs containing Lynx specific code may use the <tt/lynx.h/ header file.
<sect1>Lynx specific functions<p>
<itemize>
<item>lynx_change_framerate
<item>lynx_eeprom_erase
<item>lynx_eeprom_read
<item>lynx_eeprom_write
@@ -120,8 +118,9 @@ available, but must be statically linked, because no file I/O is available.
See the documentation for the <htmlurl url="co65.html" name="co65 utility">
for information on how to do that.
The TGI driver is implemented as a dual buffering device. To use it as a
single-buffer device set draw page and view page to the same value 0 or 1;
The TGI driver is implemented as an interrupt driven dual buffering device.
To use it as a single-buffer device set draw page and view page to the same
value 0 or 1;
The TGI driver has a few Lynx-specific extensions.
@@ -203,8 +202,13 @@ No mouse drivers are currently available for the Lynx.
</itemize>
The parity bit supports MARK and SPACE. It also supports EVEN and ODD parity
but the parity bit is included in the calculation. Most of us don't want it
this way. But there is nothing we can do about it. Just don't use EVEN or ODD
when communicating to other equipment than the Lynx.
this way. But there is nothing we can do about it.
The Lynx hardware will always check parity on incoming traffic. Currently
the driver cannot receive data from standard PC's due to this parity bug.
For working with Lynx to Lynx communication use EVEN parity.
To send data to standard PC's use MARK or SPACE as parity setting.
There is always only one stop bit. And the data length is always 8 bits.
@@ -215,6 +219,7 @@ No mouse drivers are currently available for the Lynx.
area $200-$2ff for the transmit ring buffer and $300-$3ff for the receive
ring buffer. This area can not be used at startup for anything as the Lynx
ROM needs this area for decryption purposes.
</descrip><p>