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Add 4510 support for C65/C64DX

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Sven Oliver Moll
2016-08-29 10:45:18 +02:00
parent e52feb2b91
commit 0538184699
15 changed files with 630 additions and 82 deletions
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39
doc/ca65.sgml
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@@ -152,7 +152,7 @@ Here is a description of all the command line options:
Set the default for the CPU type. The option takes a parameter, which
may be one of
6502, 65SC02, 65C02, 65816, sweet16, HuC6280
6502, 6502X, 65SC02, 65C02, 65816, sweet16, HuC6280, 4510
<label id="option-create-dep">
@@ -434,16 +434,16 @@ The assembler accepts
In 65816 mode, several aliases are accepted, in addition to the official
mnemonics:
<tscreen><verb>
CPA is an alias for CMP
DEA is an alias for DEC A
INA is an alias for INC A
SWA is an alias for XBA
TAD is an alias for TCD
TAS is an alias for TCS
TDA is an alias for TDC
TSA is an alias for TSC
</verb></tscreen>
<itemize>
<item><tt>CPA</tt> is an alias for <tt>CMP</tt>
<item><tt>DEA</tt> is an alias for <tt>DEC A</tt>
<item><tt>INA</tt> is an alias for <tt>INC A</tt>
<item><tt>SWA</tt> is an alias for <tt>XBA</tt>
<item><tt>TAD</tt> is an alias for <tt>TCD</tt>
<item><tt>TAS</tt> is an alias for <tt>TCS</tt>
<item><tt>TDA</tt> is an alias for <tt>TDC</tt>
<item><tt>TSA</tt> is an alias for <tt>TSC</tt>
</itemize>
<sect1>6502X mode<label id="6502X-mode"><p>
@@ -473,6 +473,23 @@ from the mentioned web page, for more information, see there.
</itemize>
<sect1>4510 mode<p>
The 4510 is a microcontroller that is the core of the Commodore C65 aka C64DX.
It contains among other functions a slightly modified 65CE02 CPU, to allow
address mapping for 20 bits of address space (1 megabyte addressable area).
As compared to the description of the CPU in the System Specification of the
Commodore C65 aka C64DX prototypes ca65 uses these changes:
<itemize>
<item><tt>LDA (d,SP),Y</tt> may also be written as <tt>LDA (d,S),Y</tt>
(matching the 65816 notataion).
<item>All branch instruction allow now 16 bit offsets. To use a 16 bit
branch you have to prefix these with an "L" (e.g. "<tt>LBNE</tt>" instead of
"<tt>BNE</tt>"). This might change at a later implementation of the assember.
</itemize>
For more information about the Commodore C65/C64DX and the 4510 CPU, see
<url url="http://www.zimmers.net/anonftp/pub/cbm/c65/c65manualupdated.txt.gz">.
<sect1>sweet16 mode<label id="sweet16-mode"><p>