* extending pmacro facility
@ 2009-07-04 21:05 Doug Evans
2009-07-04 23:37 ` Dave Korn
0 siblings, 1 reply; 2+ messages in thread
From: Doug Evans @ 2009-07-04 21:05 UTC (permalink / raw)
To: cgen
Hi.
I'd like to extend the pmacro facility to make it easier for .cpu file
writers to decide how they want to write their .cpu files.
To that end I plan to add several new builtin pmacros.
For reference sake, here's the complete list.
[I'm a bit ambivalent on cadr, etc.]
; (.sym symbol1 symbol2 ...) - symbolstr-append
; (.str string1 string2 ...) - stringsym-append
; (.hex number [width]) - convert to hex string
; (.upcase string)
; (.downcase string)
; (.substring string start end) - get part of a string
; (.splice a b (.unsplice c) d e ...) - quasi-quote/unquote-splicing
; (.iota count [start [increment]]) - number generator
; (.map macro-name arg1 ...)
; (.for-each pmacro arg1 ...)
; (.apply macro-name arg)
; (.pmacro (arg-list) expansion) - lambda
; (.if expr then [else])
; (.case expr ((case-list1) stmt) [case-expr-stmt-list] [(else stmt)])
; (.cond (expr stmt) [(cond-expr-stmt-list)] [(else stmt)])
; (.begin [stmt-list])
; (.print . exprs) - for debugging messages
; (.dump expr) - dump expr in readable format
; (.error . message) - print error message and exit
; (.list . exprs)
; (.ref l n) - extract the n'th element of list l
; (.length l) - length of list l
; (.replicate n expr) - return list of expr replicated n
times
; (.equals x y) - deep comparison
; (.and expr . rest) - && in C
; (.or expr . rest) - || in C
; (.not expr) - ! in C
; (.eq x y)
; (.ne x y)
; (.lt x y)
; (.gt x y)
; (.le x y)
; (.ge x y)
; (.add x y)
; (.sub x y)
; (.mul x y)
; (.div x y)
; (.rem x y)
; (.sll x y) - shift left logical
; (.srl x y) - shift right logical
; (.sra x y) - shift right arithmetic
; (.bitand x y) - bitwise and
; (.bitor x y) - bitwise or
; (.bitxor x y) - bitwise xor
; (.bitinv x) - bitwise invert
; (.car l)
; (.cdr l)
; (.caar l)
; (.cadr l)
; (.cdar l)
; (.cddr l)
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