MacLisp Cross Assembler Documentation. KLOTZ.
DEC compatability pseudo-op stuff.

;               Begins comment field

'               Indicates single ASCII character as a term in expressions.

^O              Indicates octal number

^B              Indicates binary number

=               Symbol assignment

.               Current location counter

$               Indicates hexadecimal number


Default radix is decimal.


.ADDR		Generates a 16-bit address with the bytes in the proper order,
		i.e., <low> <high>.[TO DO]

.ASCII          ASCII string delimited by paired markers.

.ASCIZ		ASCIZ string delimited by paired markers and supplied with
		terminal null byte.

.BLKBA		Allocate space for a number of bytes as specified by the operand.

.BLKW		Allocate space for a number of words as specified by the operand.

.BYTE		Each expression supplied will be stored in a single byte.[In
		progress. Eval-Expression does what with commas, and best way to cons it
		up.]

.END            End of program.

.ISET		Specifies the instruction set to be used, "6502" or "TI990".

.PAGE           Force a page break. Does nothing useful now.

.PRINT          Print the text which follows on the terminal.

.RADIX          Change the radix to the value specified to this directive.

.SBTTL		Specify subtitle text. Prints out TOC on screen 	if
		SILENT-RUNNING isn't specified (via the /N switch.)

.TITLE          Specify title text.

.WORD           Allocate space for each value specified. [Same as .BYTE for 8 bit machines.]



-------------------------
Things for the Future:

.REPT           (.REPT <n>) Repeat the body of  this  directive  the  indicated
                number of times.

.NTYPE sym,arg  The symbol is equated to the addressing mode of the argument.
.NCHR sym,<str> The symbol is equated to the number of characters in <str>
.NARG sym       The symbol is equated to the number of arguments to the macro
.MEXIT          Leave macro expansion
Begin a macro definition

.MCALL          Call macros from the system library.
.IRPC  sym,<str>Indefinite  repeat  of body based upon number of characters in
                <str>.

.MACRO name <arglist>Immediate if; if condition is met, stmnt is emitted.

.IRP sym,<arglist> Indefinite repeat of body based upon number of parameters in
                <arglist>..IIF condition, arg, stmnt
.IF             Enter a conditional.
.IFDF           .IFDF <symbol> true if symbol is defined.  See also .IFNDF.
.IFEQ           .IFEQ <expression> true if expression evaluates to zero.
.IFF            Begins body of conditional if enclosing condition was false.
.IFG            .IFG <expression> true if expression greater than zero.
.IFGE           .IFG <expression> true if expression greater than or  equal  to
                zero.
.IFGT           Same as .IFG
.IFL            .IFL <expression> true if expression is negative.
.IFLE           .IFLE <expression> true if expression is negative or zero.
.IFLT           Same as .IFL.
.IFNDF          .IFNDF <symbol> true if symbol is undefined.
.IFNE           .IFNE <expression> true if expression is non-zero.
.IFNZ           Same as .IFNE
.IFT            Begins body of conditional if enclosing condition was true.
.IFZ            Same as .IFE
.IIF condition, arg, stmnt
Immediate if; if condition is met, stmnt is emitted.

.IRP sym,<arglist> Indefinite repeat of body based upon number of parameters in
                <arglist>.
[Nui mahope.]
.IRPC  sym,<str>Indefinite  repeat  of body based upon number of characters in
                <str>.

.MACRO name <arglist>
Begin a macro definition
.MEXIT          Leave macro expansion
.NARG sym       The symbol is equated to the number of arguments to the macro
.NCHR sym,<str> The symbol is equated to the number of characters in <str>
.NTYPE sym,arg  The symbol is equated to the addressing mode of the argument.

--------------------
Assembler syntax quick summary

<...>           Encloses   any   expression   (the  assembler's  equivalent  of
                parentheses).  Expressions are evaluated left-to-right  without
                operator heirarchy.

+               Addition or unary plus

-               Subtraction or unary minus

*               Multiplication

/               Division