version 1.2, 1996/02/09 17:34:12
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version 1.10, 1999/02/16 06:32:30
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\ miscelleneous words |
\ miscelleneous words |
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\ Copyright (C) 1996 Free Software Foundation, Inc. |
\ Copyright (C) 1996,1997,1998 Free Software Foundation, Inc. |
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\ This file is part of Gforth. |
\ This file is part of Gforth. |
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\ along with this program; if not, write to the Free Software |
\ along with this program; if not, write to the Free Software |
\ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
\ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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' require alias needs |
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' require alias needs ( ... "name" -- ... ) \ gforth |
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\G an alias for @code{require}; exists on other systems (e.g., Win32Forth). |
\ needs is an F-PC name. we will probably switch to 'needs' in the future |
\ needs is an F-PC name. we will probably switch to 'needs' in the future |
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\ a little more compiler security |
\ a little more compiler security |
Line 32 AUser CSP
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Line 34 AUser CSP
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: ?CSP ( -- ) |
: ?CSP ( -- ) |
sp@ csp @ <> -22 and throw ; |
sp@ csp @ <> -22 and throw ; |
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\ DMIN and DMAX |
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: dmin ( d1 d2 -- d ) \ double |
: dmin ( d1 d2 -- d ) \ double |
2over 2over d< IF 2swap THEN 2drop ; |
2over 2over d> IF 2swap THEN 2drop ; |
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: dmax ( d1 d2 -- d ) \ double |
: dmax ( d1 d2 -- d ) \ double |
2over 2over d> IF 2swap THEN 2drop ; |
2over 2over d< IF 2swap THEN 2drop ; |
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\ shell commands |
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0 Value $? ( -- n ) \ gforth dollar-question |
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\G VALUE: The exit status returned by the most recently executed |
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\G @code{system} command. |
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: system ( addr u -- ) \ gforth |
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\G Pass the string specified by c-addr, u to the host operating system |
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\G for execution in a sub-shell. |
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(system) throw TO $? ; |
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: sh ( "..." -- ) \ gforth |
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\G Parse a string and use @code{system} to pass it to the host |
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\G operating system for execution in a sub-shell. |
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'# parse cr system ; |
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\ stuff |
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: ]L ( compilation: n -- ; run-time: -- n ) \ gforth |
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\G equivalent to @code{] literal} |
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] postpone literal ; |
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: in-dictionary? ( x -- f ) |
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forthstart dictionary-end within ; |
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' drop alias d>s ( d -- n ) \ double d_to_s |
: in-return-stack? ( addr -- f ) |
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rp0 @ swap - [ forthstart 6 cells + ]L @ u< ; |