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uxn/projects/examples/devices/file.tal

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Tal

( File:
Creates a temporary file called file-output.txt,
then read it back in console, print length and delete it. )
|a0 @File0 &vector $2 &success $2 &stat $2 &delete $1 &append $1 &name $2 &length $2 &read $2 &write $2
|b0 @File1 &vector $2 &success $2 &stat $2 &delete $1 &append $1 &name $2 &length $2 &read $2 &write $2
|0100 ( -> )
( write a file with file0 )
;filepath-txt .File0/name DEO2
;part1 ,append JSR
;part2 ,append JSR
( read a file with file1 )
;filepath-txt .File1/name DEO2
,stream JSR
( delete file with file0 )
;filepath-txt .File0/delete DEO2
BRK
@append ( part* -- )
DUP2 ;print-str JSR2
DUP2 ;slen JSR2 STH2k .File0/length DEO2
.File0/write DEO2
( print result )
;saved-txt ;print-str JSR2
STH2r ;print JSR2 #2018 DEO
;bytes-txt ;print-str JSR2 #0a18 DEO
JMP2r
@stream ( -- )
#0001 .File1/length DEO2
LIT2r 0000
&stream
;&buf DUP2 .File1/read DEO2 LDA #18 DEO INC2r
.File1/success DEI2 #0000 NEQ2 ,&stream JCN
( print result )
;loaded-txt ;print-str JSR2
STH2r ;print JSR2 #2018 DEO
;bytes-txt ;print-str JSR2 #0a18 DEO
JMP2r
&buf $1
@slen ( str* -- len* )
DUP2 ,scap JSR SWP2 SUB2
JMP2r
@scap ( str* -- end* )
LDAk #00 NEQ JMP JMP2r
&while INC2 LDAk ,&while JCN
JMP2r
@print ( short* -- )
&short ( short* -- ) SWP ,&byte JSR
&byte ( byte -- ) DUP #04 SFT ,&char JSR
&char ( char -- ) #0f AND DUP #09 GTH #27 MUL ADD #30 ADD #18 DEO
JMP2r
@print-str ( str* -- )
&while
LDAk #18 DEO
INC2 LDAk ,&while JCN
POP2
JMP2r
@saved-txt "Saved 20 $1
@loaded-txt "Loaded 20 $1
@bytes-txt "bytes. $1
@filepath-txt "file-output.txt $1
@part1
476f 6420 6865 6c70 2074 6865 2064 7265
616d 6572 2077 686f 7365 206d 6164 2076
6973 696f 6e73 2073 6865 770a 00
@part2
5468 6f73 6520 6465 6164 2065 7965 7320
7365 7420 696e 2063 7279 7374 616c 2067
756c 6673 2062 656c 6f77 210a 00