1224 lines
36 KiB
Tal
1224 lines
36 KiB
Tal
( femto.tal )
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( )
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( requires terminal to be in raw mode )
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( see femto launcher script for more details )
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( )
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( ANSI sequences )
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( )
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( goto $row,$col ESC [ $row ; $col H )
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( goto home ESC [ H )
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( go up ESC [ A )
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( go down ESC [ B )
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( go right ESC [ C )
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( go left ESC [ D )
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( )
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( query cursor ESC [ 6 n )
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( )
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( all scroll on ESC [ r )
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( region scroll on ESC [ $y0 ; $y1 r )
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( scroll down ESC D )
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( scroll up ESC M )
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( )
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( erase cur->eol ESC [ K )
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( erase cur->sol ESC [ 1 K )
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( erase line ESC [ 2 K )
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( erase line->bot ESC [ J )
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( erase line->top ESC [ 1 J )
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( erase all ESC [ 2 J )
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( )
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( set attrs ESC [ $at1 ; ... m )
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( reset ESC [ m )
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( 0 reset, 1 bright, 2 dim, )
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( 4 underscore, 5 blink, )
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( 7 reverse, 8 hidden )
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( )
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( fg (30-37), bg (40-47) )
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( black, red, green, yellow, )
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( blue, magenta, cyan, white )
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( TODO: )
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( - optimize term drawing )
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( - get long line truncation/scrolling working )
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( - allow line numbers to be toggled off )
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( - help text )
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( - open file command? )
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( - close file command? )
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( - move by word/paragraph )
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( - search )
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( - search&replace )
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( - windows line-ending support (CRLF) )
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|00 @System [ &vector $2 &wst $1 &rst $1 &pad $4 &r $2 &g $2 &b $2 &debug $1 &halt $1 ]
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|10 @Console [ &vector $2 &read $1 &pad $5 &write $1 &error $1 ]
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|a0 @File [ &vector $2 &success $2 &stat $2 &delete $1 &append $1 &name $2 &length $2 &read $2 &write $2 ]
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%dbg { #ff .System/debug DEO }
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%emit { .Console/write DEO }
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%sp { #2018 DEO }
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%nl { #0a18 DEO }
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%cr { #0d18 DEO }
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%ansi { #1b18 DEO #5b18 DEO }
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( emit macros )
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( )
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( these save one byte and are easier to read. )
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%emit-! { LIT2 '! 18 DEO }
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%emit-$ { LIT2 '$ 18 DEO }
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%emit-( { LIT2 '( 18 DEO }
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%emit-) { LIT2 ') 18 DEO }
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%emit-, { LIT2 ', 18 DEO }
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%emit-0 { LIT2 '0 18 DEO }
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%emit-1 { LIT2 '1 18 DEO }
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%emit-2 { LIT2 '2 18 DEO }
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%emit-3 { LIT2 '3 18 DEO }
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%emit-6 { LIT2 '6 18 DEO }
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%emit-7 { LIT2 '7 18 DEO }
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%emit-; { LIT2 '; 18 DEO }
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%emit-C { LIT2 'C 18 DEO }
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%emit-H { LIT2 'H 18 DEO }
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%emit-J { LIT2 'J 18 DEO }
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%emit-K { LIT2 'K 18 DEO }
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%emit-[ { LIT2 '[ 18 DEO }
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%emit-m { LIT2 'm 18 DEO }
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%emit-n { LIT2 'n 18 DEO }
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%emit-~ { LIT2 '~ 18 DEO }
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%quit! { #01 .System/halt DEO BRK }
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( zero page )
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|0000
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@term [
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&cols $2 ( relative x coordinate of cursor, from 0 )
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&rows $2 ( relative y coordinaet of cursor, from 1 )
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&lmargin $2 ( left padding needed for line numbers )
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]
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@config [
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&tab-width $2 ( how many spaces to display tab chars )
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&insert-tabs $1 ( tab key inserts tabs when true )
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&color $2 ( digits of highlight color in reverse order )
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]
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@buffer [
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&limit $2 ( last byte of actual data (not including \0) + 1 )
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&offset $2 ( first byte of data visible in terminal )
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&line-count $2 ( total number of lines in file )
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&line-offset $2 ( first line of text visible in terminal )
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]
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( relative cursor positions, e.g. 0 to cols-1 )
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@cursor [
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&col $2 ( current column value 0-n (may exceed lenght of row) )
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&row $2 ( current relative row value, 0-(height-1) )
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]
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@state [
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&saw-esc $1 ( did we just see ESC? )
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&saw-xterm $1 ( did we just see an ESC [ xterm sequence? )
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&saw-vt $1 ( did we just see an ESC [ $N vt sequence? )
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&modified $1 ( has the buffer been modified? )
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&quitting $1 ( are we in the process of quitting? )
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]
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( prompt uses .tmp/pos and .tmp/data to track user input )
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@prompt [
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&active $1 ( is prompt currently active? )
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&vector $2 ( what code to run when user responds )
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&string $2 ( string to print for the prompt )
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]
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@tmp [
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&pos $2 ( temporary pointer to address when reading data )
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&data $40 ( small scratch pad when reading data )
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]
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( search uses .tmp/pos and .tmp/data to track query string )
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@searching [
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&active $1
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&orig-row $2
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&orig-col $2
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]
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( startup )
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|0100
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;init-zero-page JSR2
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;startup JMP2
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( intialize zero page variables )
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( )
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( everything not specified starts as zero )
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@init-zero-page ( -> )
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#0050 .term/cols STZ2
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#0018 .term/rows STZ2
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#0006 .term/lmargin STZ2
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#0004 .config/tab-width STZ2
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#00 .config/insert-tabs STZ
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#3333 .config/color STZ2
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;data .buffer/offset STZ2
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JMP2r
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( code to run on startup )
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@startup
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;filename .tmp/pos STZ2
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;read-filename .Console/vector DEO2
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BRK
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( ERROR HANDLING )
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( using error! will print the given message before causing )
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( the interpreter to halt. )
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@error! ( msg* -> )
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emit-! sp
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&loop LDAk ,&continue JCN ,&done JMP
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&continue LDAk emit INC2 ,&loop JMP
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&done POP2 nl
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dbg BRK
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@open-file ( filename* -> )
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.File/name DEO2
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#f000 .File/length DEO2
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;data .File/read DEO2
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.File/success DEI2 #0000 GTH2 ,&ok JCN
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;messages/input-error ;print JSR2
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;filename ;print JSR2 nl quit!
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( calculate buffer limit address using start + size )
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&ok .File/success DEI2 ;data ADD2 .buffer/limit STZ2
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JMP2r
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@setup-terminal-size ( -> )
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#03e7 DUP2 ;term-move-cursor JSR2
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;term-get-cursor-position JSR2
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;tmp/data .tmp/pos STZ2
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;receive-terminal-size .Console/vector DEO2
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JMP2r
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@receive-terminal-size ( -> )
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.Console/read DEI .tmp/pos LDZ2 STA
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.tmp/pos LDZ2 INC2 .tmp/pos STZ2
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.Console/read DEI LIT 'R EQU ;parse-terminal-size JCN2
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BRK
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@parse-terminal-size ( -> )
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LIT2r 0000 LIT2r 0000
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.tmp/data LDZk #1b NEQ ,&parse-error JCN ( i ) INC
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LDZk LIT '[ NEQ ,&parse-error JCN ( i ) INC
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&loop
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LDZk LIT '; EQU ,&parse-col JCN
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LIT2r 000a MUL2r
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LDZk LIT '0 SUB #00 SWP STH2 ADD2r
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INC ,&loop JMP
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&parse-col
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INC STH2r #0002 SUB2 .term/rows STZ2
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&loop2
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LDZk LIT 'R EQU ,&done JCN
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LIT2r 000a MUL2r
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LDZk LIT '0 SUB #00 SWP STH2 ADD2r
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INC ,&loop2 JMP
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&done
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STH2r .term/cols STZ2 POP
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;on-key .Console/vector DEO2
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;draw-all JSR2
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BRK
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&parse-error POP .tmp/data LDZ2
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;messages/term-size-parse-error ;error! JMP2
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@setup-linecount ( -> )
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;data LIT2r 0001
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&loop DUP2 .buffer/limit LDZ2 EQU2 ,&done JCN
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LDAk #00 EQU ,&done JCN
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LDAk #09 NEQ ,&next JCN #01 .config/insert-tabs STZ
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&next LDAk #0a NEQ JMP INC2r
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INC2 ,&loop JMP
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&done POP2
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STH2r .buffer/line-count STZ2
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JMP2r
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@read-filename ( -> )
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#12 DEI #0a EQU ,&execute JCN ( did we read \n ? )
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#12 DEI .tmp/pos LDZ2 STA ( no, so save in buffer )
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.tmp/pos LDZ2 INC2 .tmp/pos STZ2 ( pos++ )
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BRK ( return )
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&execute ( we saw a newline, so do something )
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#00 .tmp/pos LDZ2 STA ( null terminate str )
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;filename ;open-file JSR2 ( open file )
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;setup-linecount JSR2 ( determine # of lines )
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;setup-terminal-size JSR2 ( detect terminal dimensions )
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BRK
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@bol ( -> )
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#0000 .cursor/col STZ2
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;draw-statusbar-and-cursor JSR2 BRK
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( FIXME: handle long lines )
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@eol ( -> )
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;cur-line JSR2 ;line-len JSR2 .cursor/col STZ2
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;draw-statusbar-and-cursor JSR2 BRK
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( FIXME: handle long lines )
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@forward ( -> )
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;cur-pos JSR2 ;last-pos JSR2 GTH2 ,&skip JCN
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;cur-col JSR2 ;cur-len JSR2 LTH2 ,&normal JCN ,&next-line JMP
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&normal
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;cur-col JSR2 INC2 .cursor/col STZ2
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;draw-statusbar-and-cursor JSR2
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,&skip JMP
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&next-line #0000 .cursor/col STZ2
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;inc-row JSR2
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;ensure-visible-cursor JSR2
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;draw-cursor JSR2
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&skip BRK
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( FIXME: handle long lines )
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@back ( -> )
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;cur-col JSR2 #0001 LTH2 ,&next-line JCN
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;cur-col JSR2 #0001 SUB2 .cursor/col STZ2
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;draw-statusbar-and-cursor JSR2 BRK
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&next-line
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;dec-row JSR2
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;cur-len JSR2 .cursor/col STZ2
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;ensure-visible-cursor JSR2 ( FIXME )
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;draw-cursor JSR2 BRK
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@up ( -> )
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;cur-abs-row JSR2 #0000 EQU2 ,&done JCN
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;dec-row JSR2
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;ensure-visible-cursor JSR2
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;draw-statusbar JSR2
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&done ;draw-cursor JSR2 BRK
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@down ( -> )
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;cur-abs-row JSR2 ;last-abs-row JSR2 EQU2 ,&done JCN
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;inc-row JSR2
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;ensure-visible-cursor JSR2
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;draw-statusbar JSR2
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&done ;draw-cursor JSR2 BRK
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@center-view
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;term/rows LDZ2 INC2 #0002 DIV2 STH2k
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.cursor/row LDZ2 LTH2 ,&standard JCN
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POP2r
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#0000 .buffer/line-offset STZ2
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;data .buffer/offset STZ2
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,&done JMP
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&standard
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.cursor/row LDZ2 STH2r SUB2
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DUP2 .buffer/line-offset STZ2
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;abs-line JSR2 .buffer/offset STZ2
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&done
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;draw-all JSR2 BRK
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@page-up ( -> )
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.term/rows LDZ2 #0002 SUB2 STH2k
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.buffer/line-offset LDZ2 LTH2 ,&move-full JCN
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POP2r
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;zero-row JSR2
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#0000 .cursor/col STZ2
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,&done JMP
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&move-full
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.cursor/row LDZ2 STH2kr SUB2 .cursor/row STZ2
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.buffer/line-offset LDZ2 STH2r SUB2
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DUP2 .buffer/line-offset STZ2
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;abs-line JSR2 .buffer/offset STZ2
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&done
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;draw-all JSR2 BRK
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@page-down
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;eof-is-visible JSR2 ,&near-eof JCN
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.term/rows LDZ2 #0002 SUB2 STH2k
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.buffer/line-offset LDZ2 ADD2
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DUP2 .buffer/line-offset STZ2
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;abs-line JSR2 .buffer/offset STZ2
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.cursor/row LDZ2 STH2r ADD2 .cursor/row STZ2
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;draw-all JSR2 BRK
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&near-eof
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.buffer/line-count LDZ2 #0001 SUB2 ;set-abs-row JSR2
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;cur-len JSR2 .cursor/col STZ2
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;draw-cursor JSR2 BRK
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@quit
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#01 .state/quitting STZ
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.state/modified LDZ ,&is-modified JCN
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quit!
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&is-modified
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;messages/quit-prompt ;messages/null ;do-quit ;start-prompt JSR2
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;draw-prompt-and-cursor JSR2
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BRK
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@do-quit
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.tmp/data LDZ LIT 'n EQU ;quit-now JCN2
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.tmp/data LDZ LIT 'y EQU ;save JCN2
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#00 .state/quitting STZ
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;move-to-message-line JSR2
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;messages/unknown-input ;print JSR2
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;tmp/data ;print JSR2
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BRK
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@quit-now quit!
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@ignore
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;draw-cursor JSR2
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BRK
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@insert ( c^ -> )
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#01 .state/modified STZ
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;cur-pos JSR2 ;shift-right JSR2
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;cur-col JSR2 INC2 .cursor/col STZ2
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;draw-all JSR2
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BRK
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@insert-prompt ( c^ -> )
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.tmp/pos LDZ2 STH2k STA ( data[pos] <- c )
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INC2r #00 STH2kr STA ( data[pos+1] <- 0 )
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STH2r .tmp/pos STZ2 ( pos <- pos+1 )
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;draw-prompt-and-cursor JSR2
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BRK
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@insert-tab ( -> )
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#01 .state/modified STZ
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.config/insert-tabs LDZ ,&use-tabs JCN
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#0000 .config/tab-width LDZ2 SUB2
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&loop
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DUP2 #0000 EQU2 ,&done JCN
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#20 ;cur-pos JSR2 ;shift-right JSR2
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INC2 ,&loop JMP
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&done
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;cur-col JSR2 .config/tab-width LDZ2 ADD2 .cursor/col STZ2
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;draw-all JSR2 BRK
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&use-tabs
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#09 ;insert JMP2
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( TODO: handle last line )
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@newline ( c^ -> )
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#01 .state/modified STZ
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#0a ;cur-pos JSR2 ;shift-right JSR2
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#0000 .cursor/col STZ2
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;inc-row JSR2
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.buffer/line-count LDZ2k INC2 ROT STZ2
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;ensure-visible-cursor JSR2
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;draw-all JSR2
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BRK
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@at-buffer-start ( -> bool^ )
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;cur-pos JSR2 ;data EQU2 JMP2r
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@at-line-start ( -> bool^ )
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.cursor/col LDZ2 #0000 EQU2 JMP2r
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@bof-is-visible ( -> bool^ )
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.buffer/line-offset LDZ2 #0000 EQU2 JMP2r
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@eof-is-visible ( -> bool^ )
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.buffer/line-offset LDZ2 .term/rows LDZ2 ADD2 INC2
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.buffer/line-count LDZ2
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GTH2 JMP2r
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@backspace ( -> )
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;cur-col JSR2 #01 LTH ,&skip JCN
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;cur-col JSR2 #0001 SUB2 .cursor/col STZ2
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;delete JMP2
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&skip BRK
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@backspace-prompt ( -> )
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#00 .tmp/pos LDZ2 #0001 SUB2 ( 0 pos-1 )
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STH2k STA ( data[pos-1] <- 0 )
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STH2r .tmp/pos STZ2 ( pos <- pos-1 )
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;draw-prompt JSR2
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;draw-cursor JSR2
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BRK
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@delete ( -> )
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#01 .state/modified STZ
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;last-pos JSR2 ;cur-pos JSR2 LTH2 ,&skip JCN
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;cur-pos JSR2 LDAk STH ( cur [c] )
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;shift-left JSR2 ( [c] )
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STHr #0a NEQ ,¬-newline JCN
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.buffer/line-count LDZ2k #0001 SUB2 ROT STZ2
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¬-newline ;draw-all JSR2 BRK
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&skip ;draw-cursor JSR2 BRK
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@escape ( -> )
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#01 .state/saw-esc STZ BRK
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@goto-end ( -> )
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.buffer/line-count LDZ2 #0001 SUB2 .cursor/row STZ2
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.buffer/line-count LDZ2 .term/rows LDZ2 LTH2k ,&use-zero JCN
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SUB2 #0002 ADD2 ,&continue JMP
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&use-zero
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POP2 POP2 #0000
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&continue
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DUP2 .buffer/line-offset STZ2
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;abs-line JSR2 .buffer/offset STZ2
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;cur-len JSR2 .cursor/col STZ2
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;draw-all JSR2 BRK
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@goto-start ( -> )
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;zero-row JSR2
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#0000 .cursor/col STZ2
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;draw-all JSR2
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BRK
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@goto-line ( -> )
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;messages/goto-line ;messages/null ;do-goto-line ;start-prompt JSR2
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;draw-prompt-and-cursor JSR2
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BRK
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@parse-decimal-number ( addr* -> n* ok^ )
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LDAk ,&non-empty JCN
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#00 JMP2r
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&non-empty
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LIT2r 0000
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&loop
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LDAk ,&continue JCN
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POP2 STH2r #01 JMP2r
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&continue
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LDAk LIT '0 LTH ,&fail JCN
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LDAk LIT '9 GTH ,&fail JCN
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LIT2r 000a MUL2r
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LDAk LIT '0 SUB #00 SWP STH2 ADD2r
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INC2 ,&loop JMP
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&fail
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POP2r #00 JMP2r
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@do-goto-line
|
|
;tmp/data ;parse-decimal-number JSR2
|
|
,&ok JCN
|
|
;move-to-message-line JSR2
|
|
;messages/unknown-input ;print JSR2
|
|
;tmp/data ;print JSR2
|
|
BRK
|
|
&ok
|
|
#0001 SUB2 ( convert 1-indexing to 0-indexing )
|
|
DUP2 .buffer/line-count LDZ2 LTH2 ,&within JCN
|
|
POP2 ;goto-end JMP2
|
|
&within
|
|
;jump-to-line JSR2
|
|
;draw-all JSR2
|
|
BRK
|
|
|
|
@jump-to-line ( n* -> )
|
|
.term/rows LDZ2 INC2 #0002 DIV2 LTH2k ( n rows/2 n<rows/2? ) ,&early JCN
|
|
OVR2 SWP2 SUB2 ( n n-rows/2 )
|
|
.buffer/line-count LDZ2 ( n n-rows/2 lines )
|
|
.term/rows LDZ2 SUB2 ( n n-rows/2 lines-rows )
|
|
GTH2k ( n n-rows/2 lines-rows n-rows/2>lines-rows? )
|
|
,&late JCN ( n n-rows/2 lines-rows )
|
|
POP2 ,&finish JMP
|
|
&early ( n rows/2 )
|
|
POP2 #0000 ,&finish JMP ( n 0000 )
|
|
&late ( n n-rows/2 lines-rows )
|
|
NIP2
|
|
&finish ( n o )
|
|
SUB2k STH2 DUP2 ( n o o [n-o] )
|
|
.buffer/line-offset STZ2 ( n o [n-o] )
|
|
;abs-line JSR2 .buffer/offset STZ2 ( n [n-o] )
|
|
#0000 .cursor/col STZ2 ( n [n-o] )
|
|
( POP2 STH2r .cursor/row STZ2 )
|
|
POP2r .cursor/row STZ2
|
|
JMP2r
|
|
|
|
@ensure-visible-cursor
|
|
;cur-rel-row JSR2 .term/rows LDZ2 LTH2 ,&noop JCN
|
|
;cur-abs-row JSR2 ;jump-to-line JSR2
|
|
;draw-all JSR2
|
|
&noop JMP2r
|
|
|
|
@debug
|
|
;messages/rel-line-error ;error! JMP2
|
|
|
|
@move-to-message-line ( -> )
|
|
#0000 .term/rows LDZ2 #0002 ADD2 ;term-move-cursor JMP2
|
|
|
|
( TODO: need to create draw-prompt and call it from draw-all )
|
|
|
|
( when called vector should end in BRK )
|
|
@start-prompt ( prompt* default* vector* -> )
|
|
.prompt/active LDZ ,&is-active JCN
|
|
#01 .prompt/active STZ ( prompt/active <- 1 )
|
|
.prompt/vector STZ2 ( prompt/vector <- vector )
|
|
DUP2 ;tmp/data ;str-copy JSR2 ( tmp/data <- default )
|
|
;str-len JSR2 ;tmp/data ADD2 ( len(default)+data )
|
|
.tmp/pos STZ2 ( tmp/pos <- len(default)+data )
|
|
.prompt/string STZ2 ( prompt/string <- prompt )
|
|
JMP2r
|
|
&is-active
|
|
#0000 DIV
|
|
|
|
( ends prompt without calling vector )
|
|
@cancel-prompt ( -> )
|
|
.prompt/active LDZ ,&is-active JCN
|
|
#0000 DIV
|
|
&is-active
|
|
#00 .prompt/active STZ
|
|
#00 .state/quitting STZ
|
|
;draw-prompt-and-cursor JSR2
|
|
BRK
|
|
|
|
( when called vector should end in BRK )
|
|
@finish-prompt ( -> )
|
|
.prompt/active LDZ ,&is-active JCN
|
|
#0000 DIV
|
|
&is-active
|
|
#00 .prompt/active STZ
|
|
;draw-prompt JSR2
|
|
;draw-cursor JSR2
|
|
.prompt/vector LDZ2 JMP2
|
|
|
|
@save
|
|
;messages/save-prompt ;filename ;do-save ;start-prompt JSR2
|
|
;draw-prompt-and-cursor JSR2
|
|
BRK
|
|
|
|
@do-save ( -> )
|
|
.buffer/limit LDZ2 ;data SUB2 STH2 ( [size] )
|
|
;tmp/data .File/name DEO2
|
|
STH2kr .File/length DEO2
|
|
;data .File/write DEO2
|
|
|
|
;move-to-message-line JSR2
|
|
.File/success DEI2 STH2r EQU2 ( ok? ) ,&ok JCN
|
|
;messages/save-failed ,&finish JMP
|
|
&ok
|
|
#00 .state/modified STZ
|
|
;tmp/data ;filename ;str-copy JSR2
|
|
;messages/save-ok
|
|
&finish
|
|
;print JSR2 ;tmp/data ;print JSR2
|
|
;draw-all JSR2
|
|
.state/quitting LDZ ;quit-now JCN2
|
|
BRK
|
|
|
|
@search ( -> )
|
|
;messages/search-prompt ;messages/null ;do-search ;start-prompt JSR2
|
|
;draw-prompt-and-cursor JSR2
|
|
BRK
|
|
|
|
@do-search ( -> )
|
|
#01 .searching/active STZ
|
|
;draw-all JSR2
|
|
( ;move-to-next-match JMP2 )
|
|
BRK
|
|
|
|
@toggle-color ( -> )
|
|
.config/color LDZ2 #3733 EQU2 ,&wrap-around JCN
|
|
.config/color LDZ2 #0100 ADD2 .config/color STZ2 ,&done JMP
|
|
&wrap-around #3033 .config/color STZ2
|
|
&done ;draw-all JSR2 BRK
|
|
|
|
@toggle-tabs ( -> )
|
|
.config/insert-tabs LDZk #01 EOR SWP STZ
|
|
;draw-statusbar-and-cursor JSR2 BRK
|
|
|
|
( TODO: M-f and M-b for next/previous word )
|
|
( M-n and M-p for next/previous paragraph )
|
|
( maybe M-% for search&replace )
|
|
@on-key-escaped ( -> )
|
|
#00 .state/saw-esc STZ
|
|
.Console/read DEI LIT '< EQU ( M-< ) ;goto-start JCN2
|
|
.Console/read DEI LIT '> EQU ( M-> ) ;goto-end JCN2
|
|
.Console/read DEI LIT 'c EQU ( M-c ) ;toggle-color JCN2
|
|
.Console/read DEI LIT 'g EQU ( M-g ) ;goto-line JCN2
|
|
.Console/read DEI LIT 't EQU ( M-t ) ;toggle-tabs JCN2
|
|
.Console/read DEI LIT 'v EQU ( M-v ) ;page-up JCN2
|
|
.Console/read DEI LIT '[ EQU ( M-[ ) ;xterm JCN2
|
|
BRK
|
|
|
|
@xterm
|
|
#01 .state/saw-xterm STZ BRK
|
|
|
|
@on-key-vt ( -> )
|
|
.state/saw-vt LDZk STH #00 SWP STZ
|
|
.Console/read DEI LIT '~ EQU ,&ok JCN
|
|
POPr BRK
|
|
&ok
|
|
STHr DUP LIT '1 NEQ ,¬-1 JCN
|
|
( ^[[1~ -> home ) POP ;bol JMP2
|
|
¬-1 DUP LIT '2 NEQ ,¬-2 JCN
|
|
( ^[[2~ -> insert ) POP BRK
|
|
¬-2 DUP LIT '3 NEQ ,¬-3 JCN
|
|
( ^[[3~ -> delete ) POP ;delete JMP2
|
|
¬-3 DUP LIT '4 NEQ ,¬-4 JCN
|
|
( ^[[4~ -> end ) POP ;eol JMP2
|
|
¬-4 DUP LIT '5 NEQ ,¬-5 JCN
|
|
( ^[[5~ -> page up ) POP ;page-up JMP2
|
|
¬-5 DUP LIT '6 NEQ ,¬-6 JCN
|
|
( ^[[6~ -> page down ) POP ;page-down JMP2
|
|
¬-6 DUP LIT '7 NEQ ,¬-7 JCN
|
|
( ^[[7~ -> home ) POP ;bol JMP2
|
|
¬-7 DUP LIT '8 NEQ ,¬-8 JCN
|
|
( ^[[8~ -> end ) POP ;eol JMP2
|
|
¬-8
|
|
( ??? ) POP BRK
|
|
|
|
@on-key-xterm ( -> )
|
|
#00 .state/saw-xterm STZ
|
|
.Console/read DEI LIT 'A EQU ( ^[[A -> up ) ;up JCN2
|
|
.Console/read DEI LIT 'B EQU ( ^[[B -> down ) ;down JCN2
|
|
.Console/read DEI LIT 'C EQU ( ^[[C -> right ) ;forward JCN2
|
|
.Console/read DEI LIT 'D EQU ( ^[[D -> left ) ;back JCN2
|
|
.Console/read DEI LIT 'F EQU ( ^[[F -> end ) ;eol JCN2
|
|
.Console/read DEI LIT 'H EQU ( ^[[H -> home ) ;bol JCN2
|
|
.Console/read DEI LIT '0 LTH ;ignore JCN2
|
|
.Console/read DEI LIT '8 GTH ;ignore JCN2
|
|
.Console/read DEI .state/saw-vt STZ ( ^[[1 through ^[[8 )
|
|
BRK
|
|
|
|
@clear-line ( -> )
|
|
ansi emit-2 emit-K JMP2r
|
|
|
|
@clear-message-line
|
|
;move-to-message-line JSR2
|
|
;clear-line JSR2
|
|
JMP2r
|
|
|
|
@cancel-search
|
|
#00 .searching/active STZ
|
|
;draw-all JSR2
|
|
BRK
|
|
|
|
@finish-search
|
|
#00 .searching/active STZ
|
|
;draw-all JSR2
|
|
BRK
|
|
|
|
@move-to-next-match BRK
|
|
@move-to-prev-match BRK
|
|
|
|
@on-key-searching
|
|
.Console/read DEI #07 EQU ( C-g ) ;cancel-search JCN2
|
|
.Console/read DEI #0d EQU ( \r ) ;finish-search JCN2
|
|
.Console/read DEI #6e EQU ( n ) ;move-to-next-match JCN2
|
|
.Console/read DEI #70 EQU ( p ) ;move-to-prev-match JCN2
|
|
;ignore JMP2
|
|
|
|
@on-key-prompt
|
|
.Console/read DEI #07 EQU ( C-g ) ;cancel-prompt JCN2
|
|
.Console/read DEI #0d EQU ( \r ) ;finish-prompt JCN2
|
|
.Console/read DEI #7f EQU ( DEL ) ;backspace-prompt JCN2
|
|
.Console/read DEI #20 LTH ;ignore JCN2 ( ignore for now )
|
|
.Console/read DEI #7e GTH ;ignore JCN2 ( ignore for now )
|
|
.Console/read DEI ( printable ASCII ) ;insert-prompt JMP2
|
|
BRK
|
|
|
|
( TODO: C-h for help )
|
|
( TODO: C-s for search )
|
|
( TODO: tab input? )
|
|
@on-key
|
|
;clear-message-line JSR2
|
|
.searching/active LDZ ;on-key-searching JCN2
|
|
.prompt/active LDZ ;on-key-prompt JCN2
|
|
.state/saw-vt LDZ ;on-key-vt JCN2
|
|
.state/saw-xterm LDZ ;on-key-xterm JCN2
|
|
.state/saw-esc LDZ ;on-key-escaped JCN2
|
|
.Console/read DEI #01 EQU ( C-a ) ;bol JCN2
|
|
.Console/read DEI #02 EQU ( C-b ) ;back JCN2
|
|
.Console/read DEI #04 EQU ( C-d ) ;delete JCN2
|
|
.Console/read DEI #05 EQU ( C-e ) ;eol JCN2
|
|
.Console/read DEI #06 EQU ( C-f ) ;forward JCN2
|
|
.Console/read DEI #09 EQU ( \t ) ;insert-tab JCN2
|
|
.Console/read DEI #0c EQU ( C-l ) ;center-view JCN2
|
|
.Console/read DEI #0d EQU ( \r ) ;newline JCN2
|
|
.Console/read DEI #0e EQU ( C-n ) ;down JCN2
|
|
.Console/read DEI #0f EQU ( C-o ) ;save JCN2
|
|
.Console/read DEI #10 EQU ( C-p ) ;up JCN2
|
|
.Console/read DEI #13 EQU ( C-s ) ;search JCN2
|
|
.Console/read DEI #16 EQU ( C-v ) ;page-down JCN2
|
|
.Console/read DEI #18 EQU ( C-x ) ;quit JCN2
|
|
.Console/read DEI #1a EQU ( C-z ) ;debug JCN2
|
|
.Console/read DEI #1b EQU ( ESC ) ;escape JCN2
|
|
.Console/read DEI #7f EQU ( DEL ) ;backspace JCN2
|
|
.Console/read DEI #20 LTH ;ignore JCN2 ( ignore for now )
|
|
.Console/read DEI #7e GTH ;ignore JCN2 ( ignore for now )
|
|
.Console/read DEI ( printable ASCII ) ;insert JMP2
|
|
BRK
|
|
|
|
@min2 ( x* y* -> min* )
|
|
LTH2k JMP SWP2 POP2 JMP2r
|
|
|
|
( @max2 ( x* y* -> min* )
|
|
GTH2k JMP SWP2 POP2 JMP2r )
|
|
|
|
@term-move-cursor ( col* row* -> )
|
|
ansi INC2 ( row+1 ) ;emit-dec2 JSR2
|
|
emit-; INC2 ( col+1 ) ;emit-dec2 JSR2
|
|
emit-H JMP2r
|
|
|
|
@term-move-right ( n* -> )
|
|
ansi ;emit-dec2 JSR2 emit-C JMP2r
|
|
|
|
@term-get-cursor-position ( -> )
|
|
ansi emit-6 emit-n JMP2r
|
|
|
|
@term-erase-all ( -> )
|
|
ansi emit-2 emit-J JMP2r
|
|
|
|
( @offset-for-cur-row
|
|
.buffer/offset LDZ2 ( offset )
|
|
#0000 ;cur-rel-row JSR2 SUB2 STH2 ( offset [-k] )
|
|
&loop STH2r ORA ,&next JCN
|
|
POP2r JMP2r
|
|
&next LDAk #0a NEQ JMP INC2r
|
|
INC2 ,&loop JMP )
|
|
|
|
@draw-cursor ( -> )
|
|
.prompt/active LDZ ,&on-prompt JCN
|
|
;cur-w-col JSR2 .term/lmargin LDZ2 ADD2
|
|
.term/cols LDZ2 LTH2 ,&ok JCN
|
|
( we have a long line )
|
|
( ;offset-for-cur-row JSR2 )
|
|
&ok
|
|
;cur-w-col JSR2 .term/lmargin LDZ2 ADD2
|
|
;cur-rel-row JSR2
|
|
;term-move-cursor JMP2
|
|
&on-prompt
|
|
JMP2r
|
|
|
|
@get-save-status
|
|
.state/modified LDZ ,&is-modified JCN
|
|
;messages/saved JMP2r
|
|
&is-modified ;messages/unsaved JMP2r
|
|
|
|
@get-tab-status
|
|
.config/insert-tabs LDZ ,&tabs JCN
|
|
;messages/st-spaces JMP2r
|
|
&tabs ;messages/st-tabs JMP2r
|
|
|
|
@draw-statusbar ( -> )
|
|
#0000 .term/rows LDZ2 ;term-move-cursor JSR2
|
|
;emit-color-reverse JSR2
|
|
LIT2r 2018
|
|
.term/cols LDZ2 #0000
|
|
&loop GTH2k ,&continue JCN ,&done JMP
|
|
&continue DEOkr INC2 ,&loop JMP
|
|
&done POP2 POP2 POP2r
|
|
|
|
#0000 .term/rows LDZ2 ;term-move-cursor JSR2
|
|
;get-save-status JSR2 ;print JSR2
|
|
;filename ;print JSR2
|
|
sp
|
|
emit-[
|
|
.buffer/limit LDZ2 ;data SUB2 ;emit-dec2 JSR2
|
|
;messages/bytes ;print JSR2
|
|
sp
|
|
.buffer/line-count LDZ2 ;emit-dec2 JSR2
|
|
;messages/lines ;print JSR2
|
|
sp
|
|
emit-(
|
|
;cur-col JSR2 INC2 ;emit-dec2 JSR2
|
|
emit-,
|
|
;cur-abs-row JSR2 INC2 ;emit-dec2 JSR2
|
|
emit-)
|
|
sp
|
|
;get-tab-status JSR2 ;print JSR2
|
|
;emit-reset JSR2
|
|
JMP2r
|
|
|
|
@draw-statusbar-and-cursor ( -> )
|
|
;draw-statusbar JSR2
|
|
;draw-cursor JMP2
|
|
|
|
@draw-prompt ( -> )
|
|
;clear-message-line JSR2
|
|
.prompt/active LDZ ,&is-active JCN
|
|
JMP2r
|
|
&is-active
|
|
;emit-color-bold JSR2
|
|
.prompt/string LDZ2 ;print JSR2
|
|
;emit-reset JSR2
|
|
;tmp/data ;print JSR2
|
|
JMP2r
|
|
|
|
@draw-prompt-and-cursor ( -> )
|
|
;draw-prompt JSR2
|
|
;draw-cursor JMP2
|
|
|
|
@draw-linenum ( n* -> )
|
|
;emit-reset JSR2
|
|
ansi .config/color LDZ2 emit emit ( LIT 'm emit ) emit-m
|
|
;emit-dec2-pad JSR2
|
|
ansi ( LIT2 'm '0 emit emit ) emit-0 emit-m JMP2r
|
|
|
|
@matches-at ( s* -> limit* )
|
|
LIT2r :tmp/data
|
|
&loop
|
|
LDAkr STHr ,&non-zero JCN ,&done JMP
|
|
&non-zero
|
|
LDAk LDAkr STHr NEQ ,&fail JCN
|
|
INC2 INC2r ,&loop JMP
|
|
&done
|
|
POP2r JMP2r
|
|
&fail
|
|
POP2r POP2 #0000 JMP2r
|
|
|
|
@draw-region ( offset* limit* col* row* -> )
|
|
OVR2 ( offset limit col row col )
|
|
.term/cols LDZ2 SWP2 SUB2 STH2 ( offset limit col row [cols-col] )
|
|
;term-move-cursor JSR2 ( offset limit [cols-col] )
|
|
OVR2 STH2r ADD2 ( offset limit offset+cols-col )
|
|
;min2 JSR2 STH2 ( offset [cutoff] )
|
|
&loop ( i [cutoff] )
|
|
DUP2 STH2kr LTH2 ,&continue JCN ,&done JMP
|
|
&continue ( i [cutoff] )
|
|
LDAk #00 EQU ,&done JCN
|
|
LDAk #18 DEO INC2 ,&loop JMP
|
|
&done
|
|
POP2 POP2r JMP2r
|
|
|
|
@screen-limit ( -> sc-limit* )
|
|
.term/rows LDZ2 .buffer/line-offset LDZ2 ADD2 ( row0+rows )
|
|
DUP2 .buffer/line-count LDZ2 LTH2 ,¬-end JCN
|
|
POP2 .buffer/limit LDZ2 JMP2r
|
|
¬-end
|
|
;abs-line JMP2
|
|
|
|
@draw-matches ( -> )
|
|
( return if not searching )
|
|
.searching/active LDZ #00 EQU ,&return JCN ( )
|
|
;emit-color-reverse JSR2
|
|
|
|
.term/lmargin LDZ2 ( #0000 ) ,&x STR2 #0000 ,&y STR2 ( x <- 0, y <- 0 )
|
|
|
|
.buffer/offset LDZ2 DUP2
|
|
;screen-limit JSR2 SUB2 STH2 ( offset [-count] )
|
|
|
|
&loop ( offset [-count] )
|
|
STH2kr #0000 EQU2 ,&done JCN
|
|
DUP2 ;matches-at JSR2 ( offset mlim [-count] )
|
|
DUP2 ORA ,&found JCN
|
|
POP2 ( offset [-count] )
|
|
LDAk #0a EQU ,&newline JCN
|
|
#0001 ,&next JMP ( offset n [-count] )
|
|
&found ( offset mlim [-count] )
|
|
STH2k ( offset mlim [mlim -count] )
|
|
OVR2 SWP2 ,&x LDR2 ,&y LDR2 ( offset offset mlim x y [mlim -count] )
|
|
;draw-region JSR2 ( offset [mlim -count] ) ( POP2 POP2 POP2 POP2 ( FIXME ) )
|
|
STH2r ( offset mlim [-count] )
|
|
OVR2 SUB2 ( offset mlim-offset [-count] )
|
|
&next ( offset n [-count] )
|
|
DUP2 ,&x LDR2 ADD2 ,&x STR2 ( offset n [-count )
|
|
STH2k ( offset n [n -count] )
|
|
ADD2 ADD2r ( offset+n [n-count] )
|
|
,&loop JMP
|
|
&newline ( offset [-count] )
|
|
.term/lmargin LDZ2 ( #0000 ) ,&x STR2
|
|
,&y LDR2 INC2 ,&y STR2
|
|
INC2 INC2r
|
|
,&loop JMP
|
|
&done
|
|
POP2 POP2r
|
|
;emit-reset JSR2
|
|
&return
|
|
JMP2r
|
|
[ &x $2 &y $2 ]
|
|
|
|
@emit-tab ( -> )
|
|
#0000 .config/tab-width LDZ2 SUB2
|
|
LIT2r 2018
|
|
&loop ORAk ,&next JCN POP2 POP2r JMP2r
|
|
&next DEOkr INC2 ,&loop JMP
|
|
|
|
@emit-red ( -> )
|
|
( ansi LIT '3 emit LIT '1 emit LIT 'm emit JMP2r )
|
|
ansi emit-3 emit-1 emit-m JMP2r
|
|
|
|
@emit-reset ( -> )
|
|
( ansi LIT '0 emit LIT 'm emit JMP2r )
|
|
ansi emit-0 emit-m JMP2r
|
|
|
|
@emit-red-dollar ( -> )
|
|
;emit-red JSR2 ( LIT '$ emit ) emit-$ ;emit-reset JMP2
|
|
|
|
@emit-color-reverse ( -> )
|
|
( ansi .config/color LDZ2 emit emit LIT2 '7 '; emit emit LIT 'm emit JMP2r )
|
|
ansi .config/color LDZ2 emit emit emit-; emit-7 emit-m JMP2r
|
|
|
|
@emit-color-bold ( -> )
|
|
( ansi .config/color LDZ2 emit emit LIT2 '1 '; emit emit LIT 'm emit JMP2r )
|
|
ansi .config/color LDZ2 emit emit emit-; emit-1 emit-m JMP2r
|
|
|
|
@draw-all ( -> )
|
|
;term-erase-all JSR2
|
|
#0000 #0000 ;term-move-cursor JSR2
|
|
.buffer/line-offset LDZ2 STH2 LIT2r 0001 ( [k line-offset] )
|
|
.buffer/offset LDZ2
|
|
&bol
|
|
ADD2kr STH2r ;draw-linenum JSR2
|
|
.term/lmargin LDZ2 INC2 ,&x STR2
|
|
&loop ( offset [k line-offset] )
|
|
LDAk #00 EQU ,&eof JCN
|
|
LDAk #0a EQU ,&eol JCN
|
|
,&x LDR2 .term/cols LDZ2
|
|
LTH2k ,&ok JCN
|
|
GTH2 ,&skip JCN
|
|
;emit-red-dollar JSR2 ,&x LDR2 INC2 ,&x STR2
|
|
&skip INC2
|
|
,&loop JMP
|
|
&ok POP2 POP2
|
|
LDAk #09 EQU ,&do-tab JCN
|
|
LDAk emit INC2 ,&x LDR2 INC2 ,&x STR2
|
|
,&loop JMP
|
|
&eol INC2r
|
|
STH2kr .term/rows LDZ2 GTH2 ,&done JCN
|
|
cr nl INC2 ,&bol JMP
|
|
&do-tab ;emit-tab JSR2 INC2
|
|
.config/tab-width LDZ2 ,&x LDR2 ADD2 ,&x STR2
|
|
,&loop JMP
|
|
[ &x $2 ]
|
|
&eof
|
|
;emit-red JSR2
|
|
&eof-loop
|
|
STH2kr .term/rows LDZ2 GTH2 ,&done JCN
|
|
cr nl
|
|
.term/lmargin LDZ2 ;term-move-right JSR2
|
|
( LIT '~ emit ) emit-~ INC2r
|
|
,&eof-loop JMP
|
|
&done POP2 POP2r POP2r
|
|
;emit-reset JSR2
|
|
;draw-matches JSR2
|
|
;draw-statusbar JSR2
|
|
;draw-prompt-and-cursor JSR2
|
|
JMP2r
|
|
|
|
@str-copy ( src* dst* -> )
|
|
STH2 ( src [dst] )
|
|
&loop LDAk #00 EQU ,&done JCN
|
|
LDAk STH2kr STA
|
|
INC2 INC2r ,&loop JMP
|
|
&done POP2 #00 STH2r STA
|
|
JMP2r
|
|
|
|
@str-len ( s* -> n* )
|
|
LIT2r 0000
|
|
&loop LDAk #00 EQU ,&done JCN
|
|
INC2 INC2r ,&loop JMP
|
|
&done POP2 STH2r
|
|
JMP2r
|
|
|
|
@print ( s* -> )
|
|
&loop LDAk #00 EQU ,&eof JCN
|
|
LDAk #18 DEO INC2 ,&loop JMP
|
|
&eof POP2 JMP2r
|
|
|
|
@cur-len ( -> n* )
|
|
;cur-line JSR2 ;line-len JMP2
|
|
|
|
@cur-last ( -> n* )
|
|
;cur-line JSR2 ;line-len JSR2 #0001 SUB2 JMP2r
|
|
|
|
( @cur-width ( -> n* )
|
|
;cur-line JSR2 ;line-width JMP2 )
|
|
|
|
( @cur-w-last ( -> n* )
|
|
;cur-line JSR2 ;line-width JSR2 #0001 SUB2 JMP2r )
|
|
|
|
@line-len ( s* -> n* )
|
|
#0000 STH2
|
|
&loop LDAk #00 EQU ,&end JCN
|
|
LDAk #0a EQU ,&end JCN
|
|
INC2 INC2r ,&loop JMP
|
|
&end POP2 STH2r JMP2r
|
|
|
|
( @line-width ( s* -> n* )
|
|
#0000 STH2
|
|
&loop LDAk #00 EQU ,&done JCN
|
|
LDAk #0a EQU ,&done JCN
|
|
LDAk #09 EQU ,&tabs JCN
|
|
INC2 INC2r ,&loop JMP
|
|
&tabs #0004 ADD2 ,&loop JMP
|
|
&done POP2 STH2r JMP2r )
|
|
|
|
@abs-line ( y* -> s* )
|
|
#0000 SWP2 SUB2 STH2 ( [-y] )
|
|
;data ( addr )
|
|
&newline ( addr [-y] )
|
|
STH2kr ORA ,&loop JCN ,&done JMP
|
|
&loop ( addr [-y] )
|
|
LDAk #00 EQU ,¬-found JCN ( addr [-y] )
|
|
LDAk #0a EQU ,&found JCN ( addr [-y] )
|
|
INC2 ,&loop JMP ( addr+1 [-y] )
|
|
&found INC2 INC2r ( addr+1 [-y+1] ) ,&newline JMP
|
|
&done POP2r JMP2r
|
|
¬-found POP2 POP2r #0000 JMP2r
|
|
|
|
( line number relative to the offset, starting at 0 )
|
|
@rel-line ( y* -> s* )
|
|
#0000 SWP2 SUB2 STH2 ( [-y] )
|
|
.buffer/offset LDZ2 ( addr* )
|
|
STH2kr #0000 EQU2 ,&done JCN ( addr [-y] )
|
|
&newline ( addr [-y] )
|
|
STH2kr ORA ,&loop JCN ,&done JMP
|
|
&loop ( addr [-y] )
|
|
LDAk #00 EQU ,¬-found JCN ( addr [-y] )
|
|
LDAk #0a EQU ,&found JCN ( addr [-y] )
|
|
INC2 ,&loop JMP ( addr+1 [-y] )
|
|
&found INC2 INC2r ( addr+1 [-y+1] ) ,&newline JMP
|
|
&done POP2r JMP2r
|
|
¬-found ;messages/rel-line-error ;error! JMP2
|
|
|
|
@cur-line ( -> s* )
|
|
;cur-rel-row JSR2 .term/rows LDZ2 LTH2 ,&safe JCN
|
|
.cursor/row LDZ2 ;abs-line JMP2
|
|
&safe ;cur-rel-row JSR2 ;rel-line JMP2
|
|
|
|
@cur-pos ( -> s* )
|
|
;cur-line JSR2 ;cur-col JSR2 ADD2 JMP2r
|
|
|
|
@cur-abs-row ( -> n* )
|
|
;cur-rel-row JSR2 .buffer/line-offset LDZ2 ADD2 JMP2r
|
|
|
|
@last-abs-row ( -> n* )
|
|
.buffer/line-count LDZ2 #0001 SUB2 JMP2r
|
|
|
|
@shift-right ( c^ addr* -> )
|
|
ROT STH ( addr [prev^] )
|
|
;last-pos JSR2 SWP2 ( last addr [prev^] )
|
|
&loop LTH2k ,&done JCN ( last addr [prev^] )
|
|
LDAk STH SWPr ( last addr [prev^ curr^] )
|
|
DUP2 STHr ( last addr addr prev^ [curr^] )
|
|
ROT ROT STA ( last addr [curr^] )
|
|
INC2 ,&loop JMP ( last addr+1 [curr^] )
|
|
&done NIP2 DUP2 ( addr addr [prev^] )
|
|
STHr ROT ROT ( addr prev^ addr )
|
|
STA INC2 ( addr+1 )
|
|
.buffer/limit STZ2 ( )
|
|
JMP2r
|
|
|
|
( TODO: change last/addr order and GTH -> LTH to remove hack )
|
|
@shift-left ( addr* -> )
|
|
;last-pos JSR2 SWP2 ( last addr )
|
|
&loop GTH2k ,&next JCN ( last addr )
|
|
,&done JMP ( last addr )
|
|
&next DUP2 INC2 LDAk ( last addr addr+1 c1^ )
|
|
STH SWP2 STHr ( last addr+1 addr c1^ )
|
|
ROT ROT ( last addr+1 c1^ addr )
|
|
STA ,&loop JMP ( last addr+1 )
|
|
&done POP2 ( last )
|
|
.buffer/limit STZ2 ( )
|
|
#00 .buffer/limit LDZ2 STA ( ensure null termination )
|
|
JMP2r
|
|
|
|
@cur-col ( -> col* )
|
|
.cursor/col LDZ2 ;cur-len JSR2 ;min2 JMP2
|
|
|
|
@cur-w-col ( -> col* )
|
|
LIT2r 0000 ( [0] )
|
|
;cur-line JSR2 DUP2 ;cur-col JSR2 ADD2 SWP2 ( lim s [0] )
|
|
&loop GTH2k ,&next JCN
|
|
POP2 POP2 STH2r JMP2r
|
|
&next LDAk #09 EQU ,&tabs JCN INC2 INC2r ,&loop JMP
|
|
&tabs INC2 .config/tab-width LDZ2 STH2 ADD2r ,&loop JMP
|
|
|
|
@cur-rel-row ( -> row* )
|
|
( .cursor/row LDZ2 JMP2r )
|
|
.cursor/row LDZ2 .buffer/line-offset LDZ2 SUB2 JMP2r
|
|
|
|
@set-abs-row ( n* -> )
|
|
( .buffer/line-offset LDZ2 SUB2 .cursor/row STZ2 JMP2r )
|
|
.cursor/row STZ2 JMP2r
|
|
|
|
( @set-rel-row ( n* -> )
|
|
.cursor/row STZ2 JMP2r )
|
|
|
|
@zero-row ( -> )
|
|
;data .buffer/offset STZ2
|
|
#0000 .buffer/line-offset STZ2
|
|
#0000 .cursor/row STZ2
|
|
JMP2r
|
|
|
|
@inc-row ( -> )
|
|
.cursor/row LDZ2 INC2 .cursor/row STZ2 JMP2r
|
|
|
|
@dec-row ( -> )
|
|
.cursor/row LDZ2 #0001 SUB2 .cursor/row STZ2 JMP2r
|
|
|
|
@last-pos ( -> addr* )
|
|
.buffer/limit LDZ2 #0001 SUB2 JMP2r
|
|
|
|
( @more-than-one-screen ( -> bool^ )
|
|
.buffer/line-count LDZ2 .term/rows LDZ2 GTH2 JMP2r )
|
|
|
|
( @fits-in-one-screen ( -> bool^ )
|
|
.buffer/line-count LDZ2 .term/rows LDZ2 INC2 LTH2 JMP2r )
|
|
|
|
( @mod-div ( x^ y^ -> x%d x/y )
|
|
DIVk STHk MUL SUB STHr JMP2r )
|
|
|
|
@mod-div2 ( x^ y^ -> x%d x/y )
|
|
DIV2k STH2k MUL2 SUB2 STH2r JMP2r
|
|
|
|
( @base-10-width ( n* -> w* )
|
|
LIT2r 0000 ( n [0] )
|
|
&loop ( n [w] )
|
|
DUP2 #0000 EQU2 ,&done JCN ( n [w] )
|
|
#000a DIV2 ( n/10 [w] )
|
|
INC2r ,&loop JMP ( n/10 [w+1] )
|
|
&done ( 0 [w] )
|
|
POP2 STH2r JMP2r )
|
|
|
|
@emit-digit ( n^ -> )
|
|
LIT '0 ADD emit JMP2r
|
|
|
|
( @emit-dec ( n^ -> )
|
|
DUP #63 GTH ,&do3 JCN
|
|
DUP #09 GTH ,&do2 JCN
|
|
,&do1 JMP
|
|
&do3 #64 ;mod-div JSR2 ;emit-digit JSR2
|
|
&do2 #0a ;mod-div JSR2 ;emit-digit JSR2
|
|
&do1 ;emit-digit JMP2 )
|
|
|
|
@emit-dec2 ( n* -> )
|
|
DUP2 #270f GTH2 ,&do5 JCN
|
|
DUP2 #03e7 GTH2 ,&do4 JCN
|
|
DUP2 #0063 GTH2 ,&do3 JCN
|
|
DUP2 #0009 GTH2 ,&do2 JCN
|
|
,&do1 JMP
|
|
&do5 #2710 ;mod-div2 JSR2 NIP ;emit-digit JSR2
|
|
&do4 #03e8 ;mod-div2 JSR2 NIP ;emit-digit JSR2
|
|
&do3 #0064 ;mod-div2 JSR2 NIP ;emit-digit JSR2
|
|
&do2 #000a ;mod-div2 JSR2 NIP ;emit-digit JSR2
|
|
&do1 NIP ;emit-digit JMP2
|
|
|
|
@emit-dec2-pad ( n* -> )
|
|
LIT2r 2018 ( preload #20 .Console/write into rst )
|
|
DUP2 #270f GTH2 ,&do5 JCN DEOkr
|
|
DUP2 #03e7 GTH2 ,&do4 JCN DEOkr
|
|
DUP2 #0063 GTH2 ,&do3 JCN DEOkr
|
|
DUP2 #0009 GTH2 ,&do2 JCN DEOkr
|
|
,&do1 JMP
|
|
&do5 #2710 ;mod-div2 JSR2 NIP ;emit-digit JSR2
|
|
&do4 #03e8 ;mod-div2 JSR2 NIP ;emit-digit JSR2
|
|
&do3 #0064 ;mod-div2 JSR2 NIP ;emit-digit JSR2
|
|
&do2 #000a ;mod-div2 JSR2 NIP ;emit-digit JSR2
|
|
&do1 NIP ;emit-digit JSR2
|
|
DEOr JMP2r
|
|
|
|
( various string constants used as messages for the user )
|
|
@messages [ &null 00
|
|
&input-error "input 20 "error: 20 00
|
|
&bytes 20 "bytes, 00
|
|
&save-ok "Successfully 20 "saved 20 00
|
|
&save-failed "Failed 20 "to 20 "save 20 00
|
|
&lines 20 "lines] 00
|
|
&goto-line "Go 20 "to 20 "line: 20 00
|
|
&save-prompt "File 20 "Name 20 "to 20 "Write: 20 00
|
|
&search-prompt "Text 20 "to 20 "Search 20 "for: 20 00
|
|
&quit-prompt "Save 20 "modified 20 "file 20 "(y/n)? 20 00
|
|
&unknown-input "Unknown 20 "input: 20 00
|
|
&saved "-- 20 00
|
|
&unsaved "** 20 00
|
|
&term-size-parse-error "error 20 "parsing 20 "term 20 "size 00
|
|
&rel-line-error "invalid 20 "relative 20 "line 20 "number 00
|
|
&st-tabs "[t] 00
|
|
&st-spaces "[s] 00
|
|
]
|
|
|
|
@filename $80 ( path to file being edited )
|
|
|
|
@data $f000 ( actual file data to be edited )
|