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Added a way to show the default mouse pointer on C64 TGI (graphics) screens.

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Greg King
2017-01-18 16:05:47 -05:00
parent 977bca922b
commit 54ff808c2c
3 changed files with 47 additions and 11 deletions
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27
doc/c64.sgml
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@@ -3,8 +3,9 @@
<article>
<title>Commodore 64-specific information for cc65
<author><url url="mailto:uz@cc65.org" name="Ullrich von Bassewitz">
<date>2014-04-14
<author><url url="mailto:uz@cc65.org" name="Ullrich von Bassewitz"><newline>
<url url="mailto:greg.king5@verizon.net" name="Greg King">
<date>2017-01-18
<abstract>
An overview over the C64 runtime system as it is implemented for the cc65 C
@@ -235,12 +236,22 @@ structures, accessing the struct fields will access the chip registers.
The names in the parentheses denote the symbols to be used for static linking of the drivers.
<label id="graphics-drivers">
<sect1>Graphics drivers<p>
<em>Note:</em> All available graphics drivers for the TGI interface will use
the space below the I/O area and kernal ROM, so you can have hires graphics in
the standard setup without any memory loss or need for a changed
configuration.
the space below the I/O area and Kernal ROM; so, you can have hires graphics in
the standard setup without any memory loss or need for a changed configuration.
You can use a mouse driver at the same time that you use a TGI driver. But, if
you want to see the default mouse pointer on the graphics screen, then you
explicitly must link a special object file into your program. It will put the
arrow into the "high RAM" area where the bitmaps are put. It's name is
"<tt/c64-tgimousedata.o/". Example:
<tscreen><verb>
cl65 -t c64 -o program-file main-code.c subroutines.s c64-tgimousedata.o
</verb></tscreen>
<descrip>
<tag><tt/c64-hi.tgi (c64_hi_tgi)/</tag>
@@ -251,7 +262,8 @@ configuration.
Note that the graphics drivers are incompatible with the
<tt/c64-ram.emd (c64_ram_emd)/ extended memory driver and the
<tt/c64-soft80.o/ software 80 columns conio driver.
<tt/c64-soft80.o/ software 80-columns conio driver.
<sect1>Extended memory drivers<p>
@@ -336,6 +348,9 @@ The default drivers, <tt/joy_stddrv (joy_static_stddrv)/, point to <tt/c64-stdjo
<sect1>Mouse drivers<p>
You can use these drivers in text-mode or graphics-mode (TGI) programs. See
the description of <ref id="graphics-drivers" name="the graphics drivers">.
The default drivers, <tt/mouse_stddrv (mouse_static_stddrv)/, point to <tt/c64-1351.mou (c64_1351_mou)/.
<descrip>