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https://github.com/SEPPDROID/Digital-Research-Source-Code.git
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96 lines
2.9 KiB
Plaintext
96 lines
2.9 KiB
Plaintext
$nolist
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$eject
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/* Here are the definitions for the */
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/* codemacro instructions of the */
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/* ASM86 assembler */
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/* Commands within codemacros: */
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declare
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mdbn lit '0', /* DB with number */
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mdbf lit '1', /* DB with formal parameter */
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mdwn lit '2', /* DW with numbers */
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mdwf lit '3', /* DW with formal parameter */
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mddf lit '4', /* DD with formal parameter */
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mdbit lit '5', /* DBIT */
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mendm lit '6', /* ENDM */
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mrelb lit '7', /* RELB */
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mrelw lit '8', /* RELW */
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mendbit lit '9', /* ENDBIT */
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mmodrm1 lit '10', /* MODRM with 1 formal parameter */
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mmodrm2 lit '11', /* MODRM with 2 formal parmeters */
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msegfix lit '12', /* SEGFIX */
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mnosegfix lit '13', /* NOSEGFIX */
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mformalbits lit '14', /* define bits from formal par. */
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mnumberbits lit '15'; /* define bits from number */
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/* Specifier letters: */
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declare
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specA lit '0', /* accumulator, AX or AL */
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specC lit '1', /* code, address expression */
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specD lit '2', /* data, number used as immediate data */
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specE lit '3', /* effective address, either a memory
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address (specM) or register (specR) */
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specM lit '4', /* memory address, variable (with or without
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indexing) or [register expression] */
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specR lit '5', /* general register only (not segment) */
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specS lit '6', /* segment register */
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specX lit '7'; /* simple variable name without indexing */
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/* Modifier letters: */
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declare
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nomod lit '0',
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modb lit '1', /* byte expression */
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modw lit '2', /* word expression */
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modsb lit '3', /* byte in range (-128,127) */
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modd lit '4'; /* 2-word expression */
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/* Segment override bytes: */
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dcl
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ESover lit '26h',
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CSover lit '2eh',
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SSover lit '36h',
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DSover lit '3eh';
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/* "AND"-masks for codemaco head flag */
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declare
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nopar$and lit '0fh', /* no of parameters, bit 0-3 */
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prefix$and lit '10h'; /* prefix flag, bit 4 */
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/* "OR"-masks for codemacro head flag */
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declare
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prefix$on lit '10h'; /* PREFIX on flag */
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/* "AND"-masks for modifier-letter/range spec. byte */
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declare
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modletter$bit lit '07h', /* bits 0-2 */
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range$spec$bit lit '0f8h', /* bits 3-7 */
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modlettercount lit '0', /* bit position counters */
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rangespeccount lit '3';
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/* "OR"-masks for range-specifier bits */
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declare
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norange lit '0', /* no range specfier (bits 3-4) */
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singlerange lit '08h', /* single range */
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doublerange lit '10h', /* double range */
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rangeand lit '18h',
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number$range lit '0', /* bit 5 */
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register$range lit '20h',
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rangetypeand lit '20h';
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$list
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