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uxn/projects/examples/devices/console.lib.tal
2021-05-31 14:50:36 -07:00

86 lines
1.6 KiB
Tal

( dev/console )
%RTN { JMP2r }
%PRINT { .Console/string DEO2 }
%BR { #0a .Console/char DEO }
( devices )
|10 @Console [ &pad $8 &char $1 &byte $1 &short $2 &string $2 ]
( variables )
|0000
@number [ &started $1 ]
( init )
|0100 ( -> )
;char-txt PRINT #42 .Console/char DEO BR
;byte-txt PRINT #ab .Console/byte DEO BR
;short-txt PRINT #cdef .Console/short DEO2 BR
;string-txt PRINT ;hello-word .Console/string DEO2 BR
;hello-word ;print JSR2
#ffff ;print-hexadecimal JSR2
;is-word ;print JSR2
#ffff ;print-decimal JSR2
BRK
@print ( addr -- )
&loop
( send ) DUP2 LDA .Console/char DEO
( incr ) #0001 ADD2
( loop ) DUP2 LDA ,&loop JCN
POP2
RTN
@print-hexadecimal ( short -- )
LIT '0 .Console/char DEO
LIT 'x .Console/char DEO
DUP2 #0c SFT2 ,&digit JSR
DUP2 #08 SFT2 ,&digit JSR
DUP2 #04 SFT2 ,&digit JSR
,&digit JSR
RTN
&digit
#0f AND DUP #0a LTH ,&not-alpha JCN
#27 ADD
&not-alpha
LIT '0 ADD .Console/char DEO
POP
RTN
@print-decimal ( short -- )
#00 .number/started STZ
DUP2 #2710 DIV2 DUP2 ,&digit JSR #2710 MUL2 SUB2
DUP2 #03e8 DIV2 DUP2 ,&digit JSR #03e8 MUL2 SUB2
DUP2 #0064 DIV2 DUP2 ,&digit JSR #0064 MUL2 SUB2
DUP2 #000a DIV2 DUP2 ,&digit JSR #000a MUL2 SUB2
,&digit JSR
.number/started LDZ ,&end JCN
LIT '0 .Console/char DEO
&end
RTN
&digit
SWP POP
DUP .number/started LDZ ORA #02 JCN
POP JMP2r
LIT '0 ADD .Console/char DEO
#01 .number/started STZ
RTN
@char-txt "char: 20 $1
@byte-txt "byte: 20 $1
@short-txt "short: 20 $1
@string-txt "string: 20 $1
@hello-word "hello 20 "World! 0a 00
@is-word 20 "is 20 00