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Digital Research
2020-11-06 18:50:37 +01:00

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$nolist
/*
modified 4/13/81 R. Silberstein
modified 9/2/81 R. Silberstein
*/
/* Error numbers: */
dcl
laboutofrange lit '22', /* label out of range */
misssegminfo lit '23'; /* missing segment info in operand */
/* Structures: */
dcl
symbolstruc lit 'struc(
length addr,
stype byte,
sflag byte,
segment addr,
offset addr,
baseindex byte)',
operandstruc lit 'symbolstruc';
/* define bits of SFLAG of structures above */
dcl
type$bit lit '7h', /* bit 0-2 */
segtypebit lit '18h', /* bit 3-4 */
segmbit lit '20h', /* bit 5 */
iregbit lit '40h', /* bit 6 */
bregbit lit '80h', /* bit 7 */
/* left-shift counters */
typecount lit '0',
segtypecount lit '3',
segmcount lit '5',
iregcount lit '6',
bregcount lit '7',
/* define bits of BASEINDEX byte of structures above */
indexregbit lit '01h', /* bit 0 */
baseregbit lit '02h', /* bit 1 */
nooverridebit lit '40h', /* bit 6 */
/* left shift counters */
indexregcount lit '0',
baseregcount lit '1',
noovercount lit '6';
/* Mischellaneous global variables: */
dcl
ABSADDR (4) BYTE EXTERNAL, /* ABSOLUTE ADDRESS FIELD */
cip addr external, /* current instruction pointer */
csegvalue addr external, /* current segment value */
noerror byte external, /* errorflag in codemacro decoding */
firstmacroptr address external, /* pointer at first codemacro */
macroptr address external, /* current pointer within macros */
fullsymbtab byte external, /* full if symboltable is full */
nooper byte external, /* no of instruction operands */
operands(4) operandstruc /* instruction operands,max 4 */
external;
$list