From b6b86b40135b448c91177984a8d25518a66d7cdc Mon Sep 17 00:00:00 2001 From: Ian C Date: Mon, 16 May 2016 11:59:26 +0100 Subject: SPC700 additions. * First completed version of SPC700. Very untested. * Fixed an oddity in the parser regarding quoted values not ending with a separator. These values now appear unquoted with the additional text included in the same argument. --- doc/casm.html | 70 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 69 insertions(+), 1 deletion(-) (limited to 'doc') diff --git a/doc/casm.html b/doc/casm.html index bbef8ea..2e95ccc 100644 --- a/doc/casm.html +++ b/doc/casm.html @@ -157,6 +157,10 @@ http://www.gnu.org/licenses/gpl-3.0.html)

65c816 - 65c816 processor support, as used in the SNES.

+

+SPC700 - SPC700 processor support, as used in the SNES +sound co-processor. +

CASM

@@ -1557,7 +1561,7 @@ Controls the assumptions made regarding Zero Page address. Defaults to off -The default; all addresses are assumed to be not on the Zero Page, regardless +All addresses are assumed to be not on the Zero Page, regardless of the value used. @@ -1835,6 +1839,70 @@ section. +

SPC700 CPU

+ +

Using the SPC700

+ +The SPC700 processor can be selected by passing spc700 to the processor +directive, i.e. + +
+        processor spc700
+
+ +

Opcodes

+ +I could find no official documentation on The SPC700, so the assembler uses what +seems to be the accepted opcode format. + + +

Options

+ +The SPC700 assembler has the following options. + + + + + + + + +
SPC700 OptionDescription
+option direct-page, <on|off|auto> + +Controls the assumptions made regarding Direct Page address. Defaults to +auto, and can be the following values: + + + + + + + + + + +
+off + +All addresses are assumed to be not on the Direct Page, regardless of the value +used. +
+on + +Assumes all addresses are in the Direct Page, raising an error if any address is +not in the Direct Page. +
+auto + +Treats addresses less than 256 as being in the Direct Page automatically. This +mode also makes the assembler perform an extra pass to guard against the +possibility of the calculation being fooled. +
+ +
+ + -- cgit v1.2.3