Browse code
(thue.tal) Added a Thue esolang interpreter
Devine Lu Linvega authored on 23/07/2022 19:59:47
Showing 4 changed files
- projects/examples/exercises/demo.t
- projects/examples/exercises/thue.tal
- projects/examples/gui/terminal.tal
- projects/software/launcher.tal
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+( thue interpreter |
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+ usage: thue.rom demo.t ) |
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+ |
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+|10 @Console &vector $2 &read $1 &pad $5 &write $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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+ |
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+|0000 |
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+ |
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+@src $40 |
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+@ptr $2 |
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+@len $2 |
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+ |
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+|0100 ( -> ) |
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+ |
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+ ;on-console .Console/vector DEO2 |
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+ |
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+BRK |
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+ |
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+@on-console ( -> ) |
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+ |
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+ ;src STH2 |
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+ |
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+ ( read ) |
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+ .Console/read DEI |
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+ DUP #20 LTH OVR #7f GTH ORA ,&end JCN |
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+ STH2kr ;slen JSR2 #003f GTH2 ,&end JCN |
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+ STH2r ;sput JSR2 BRK |
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+ &end |
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+ POP |
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+ |
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+ ( parse ) |
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+ STH2r .File/name DEO2 |
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+ #0001 .File/length DEO2 |
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+ ;program .ptr STZ2 |
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+ &s |
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+ ;&buf .File/read DEO2 |
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+ .File/success DEI2 #0000 EQU2 ,&eof JCN |
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+ [ LIT &buf $1 ] ;walk JSR2 |
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+ ,&s JMP |
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+ &eof |
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+ |
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+ ( assemble ) |
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+ ;program/assembly .ptr STZ2 |
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+ ;program |
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+ &w |
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+ ( save ) DUP2 .ptr LDZ2 STA2 |
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+ ( incr ) .ptr LDZ2k INC2 INC2 ROT STZ2 |
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+ ( next ) &eos INC2 LDAk ,&eos JCN INC2 |
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+ LDAk ,&w JCN |
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+ |
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+ ( save acc ) |
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+ INC2 ;program/accumulator ;scpy JSR2 |
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+ |
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+ ( run ) |
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+ &eval ,step JSR ,&eval JCN |
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+ #010f DEO |
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+ |
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+BRK |
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+ |
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+@step ( -- done ) |
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+ |
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+ ;program/assembly |
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+ &while |
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+ DUP2 ;run-rule JSR2 ,&found JCN |
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+ #0004 ADD2 LDA2k ORA ,&while JCN |
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+ POP2 |
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+ #00 |
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+ |
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+JMP2r |
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+ &found #01 JMP2r |
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+ |
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+@walk ( char -- ) |
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+ |
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+ .ptr LDZ2 STA |
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+ |
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+ ( check for left-side ) |
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+ .ptr LDZ2 #0002 SUB2 ;&marker ;scmp JSR2 #01 NEQ ,&no-marker JCN |
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+ #00 .ptr LDZ2 #0002 SUB2 STA |
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+ .ptr LDZ2k #0002 SUB2 ROT STZ2 |
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+ .len LDZ2k INC2 ROT STZ2 |
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+ &no-marker |
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+ ( check for right-side ) |
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+ .ptr LDZ2 LDA #0a NEQ ,&no-lb JCN |
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+ #00 .ptr LDZ2 STA |
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+ &no-lb |
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+ .ptr LDZ2k INC2 ROT STZ2 |
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+ |
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+JMP2r |
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+ &marker "::= $1 |
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+ |
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+@run-rule ( rule* -- ) |
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+ |
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+ LDA2k ,&a STR2 |
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+ INC2 INC2 LDA2 ,&b STR2 |
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+ |
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+ ;program/accumulator |
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+ &w |
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+ [ LIT2 &a $2 ] OVR2 ;sseg JSR2 #01 NEQ ,&no-found JCN |
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+ ,&b LDR2 LDA LIT '~ EQU ,&output JCN |
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+ ( shift ) DUP2 [ ,&b LDR2 ;slen JSR2 ,&a LDR2 ;slen JSR2 SUB2 ] ;ssft JSR2 |
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+ ( write ) [ LIT2 &b $2 ] SWP2 OVR2 ;slen JSR2 ;mcpy JSR2 |
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+ POP2 #01 JMP2r |
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+ &no-found |
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+ INC2 LDAk ,&w JCN |
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+ POP2 |
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+ #00 |
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+ |
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+JMP2r |
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+ &output |
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+ ,&a LDR2 ;slen JSR2 #0000 SWP2 SUB2 ;ssft JSR2 |
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+ POP2 ,&b LDR2 INC2 |
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+ LDAk LIT '` NEQ ,&no-lb JCN |
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+ #0a18 DEO #01 JMP2r |
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+ &no-lb |
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+ ,print-str JSR #01 |
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+ JMP2r |
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+ |
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+@print-str ( str* -- ) |
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+ |
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+ &while |
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+ LDAk #18 DEO |
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+ INC2 LDAk ,&while JCN |
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+ POP2 |
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+ |
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+JMP2r |
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+ |
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+@ssft ( str* len* -- ) |
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+ |
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+ STH2 DUP2k ;slen JSR2 ADD2 STH2r |
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+ DUP2 #8000 GTH2 ,&l JCN |
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+ ORAk ,&r JCN |
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+ POP2 POP2 POP2 |
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+ |
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+JMP2r |
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+ &l #8000 SWP2 SUB2 #8000 ADD2 ,msfl JSR JMP2r |
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+ &r ,msfr JSR JMP2r |
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+ |
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+( stdlib ) |
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+ |
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+@mcpy ( src* dst* len* -- ) SWP2 STH2 OVR2 ADD2 SWP2 &l LDAk STH2kr STA INC2r INC2 GTH2k ,&l JCN POP2 POP2 POP2r JMP2r |
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+@msfl ( b* a* len* -- ) STH2 SWP2 EQU2k ,&e JCN &l DUP2k STH2kr ADD2 LDA ROT ROT STA INC2 GTH2k ,&l JCN POP2 POP2 &e POP2r JMP2r |
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+@msfr ( b* a* len* -- ) STH2 EQU2k ,&e JCN &l DUP2 LDAk ROT ROT STH2kr ADD2 STA #0001 SUB2 LTH2k ,&l JCN POP2 POP2 &e POP2r JMP2r |
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+ |
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+@scap ( str* -- end* ) LDAk #00 NEQ JMP JMP2r &w INC2 LDAk ,&w JCN JMP2r |
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+@sput ( chr str* -- ) ,scap JSR STA JMP2r |
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+@slen ( str* -- len* ) DUP2 ,scap JSR SWP2 SUB2 JMP2r |
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+@scpy ( src* dst* -- ) STH2 &w LDAk STH2kr STA INC2r INC2 LDAk ,&w JCN POP2 #00 STH2r STA JMP2r |
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+@scmp ( a* b* -- f ) STH2 &l LDAk LDAkr STHr ANDk #00 EQU ,&e JCN NEQk ,&e JCN POP2 INC2 INC2r ,&l JMP &e NIP2 POP2r EQU JMP2r |
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+@sseg ( a* b* -- f ) STH2 &l LDAk LDAkr STHr NEQ ,&e JCN INC2k LDA #00 EQU ,&e JCN INC2 INC2r ,&l JMP &e LDA LDAr STHr EQU JMP2r |
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+ |
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+$10 |
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+ |
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+@program $4000 |
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+ &assembly $4000 |
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+ &accumulator $4000 |