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authorDimitri Sokolyuk <demon@dim13.org>2017-08-19 12:15:28 +0200
committerDimitri Sokolyuk <demon@dim13.org>2017-08-19 12:15:28 +0200
commit67d25d837ac55f28a366c0a3b262e439a6e75fc3 (patch)
treedf7715c7724c5935ab87c807f3b8b4ef529315e3 /amforth-6.5/msp430/words/header.asm
parente0d6784e89dba33226c0edb815bb974486fa7c48 (diff)
Add AmForth
Diffstat (limited to 'amforth-6.5/msp430/words/header.asm')
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diff --git a/amforth-6.5/msp430/words/header.asm b/amforth-6.5/msp430/words/header.asm
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+;Z HEADER ( addr len wid -- nt ) create a Forth word header
+; Separate headers model.
+ HEADER(XT_HEADER,6,"header",DOCOLON)
+ DW XT_FETCH
+ DW XT_COMMA ; link
+ DW XT_DOLITERAL,0FFh,XT_CCOMMA ; immediate flag - see note below
+ DW XT_IHERE,XT_TO_R
+ DW XT_SCOMMA
+ DW XT_R_FROM
+ DW XT_EXIT ; MSP430: headers in I space must be aligned
+; Note for Flashable MSP430: when compiling to RAM, we need to set
+; the immediate byte to 0FFH. When compiling to Flash, the word IC!
+; will not write 0FFH to erased Flash (because the byte is already 0FFH).
+; Thus we can write this byte at a later time (with IMMEDIATE).