2023-07-16 12:41:40 -04:00
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( usage: uxncli system.catch.rom )
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2023-07-16 00:46:04 -04:00
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|00 @System &catch $2 &expansion $2 &pad $2 &metadata $2 &r $2 &g $2 &b $2 &debug $1 &halt $1
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|10 @Console &vector $2 &read $1 &pad $4 &type $1 &write $1 &error $1
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|0100
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@on-reset ( -> )
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;on-error .System/catch DEO2
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;on-console .Console/vector DEO2
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;dict/instruction <print-str>
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BRK
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@on-console ( -> )
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[ LIT2 &id =tests ] INC2k INC2 ,&id STR2
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LDA2 JSR2 BRK
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@on-error ( addr* inst code -> )
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#00 SWP DUP ADD ;err ADD2 LDA2 <print-str>
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;dict/error <print-str>
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<print-opcode>
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;dict/at <print-str>
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<print-hex>
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LIT ". #18 DEO
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BRK
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@try-divzero ( -- )
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#02 #00 DIV JMP2r
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@try-underflow ( -- )
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POP2 JMP2r
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@try-overflow ( -- )
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#00
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&l ( -- )
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#ffff ROT INC DUP ?&l
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POP JMP2r
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@exit ( -> )
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#0000 .Console/vector DEO2
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#800f DEO
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BRK
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@<print-opcode> ( byte -- )
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DUP #20 EQU ?&jci
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DUP #40 EQU ?&jmi
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DUP #60 EQU ?&jsi
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DUP #00 EQU ?&brk
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#00 OVR #1f AND #20 SFT2 ;opcodes ADD2 <print-str>
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DUP #20 AND #00 EQU ?&>no-2
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LIT "2 #18 DEO &>no-2
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DUP #1f AND #00 EQU ?&>no-k
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DUP #80 AND #00 EQU ?&>no-k
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LIT "k #18 DEO &>no-k
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DUP #40 AND #00 EQU ?&>no-r
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LIT "r #18 DEO &>no-r
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POP JMP2r
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&brk POP ;opcodes/brk !<print-str>
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&jmi POP ;opcodes/jmi !<print-str>
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&jci POP ;opcodes/jci !<print-str>
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&jsi POP ;opcodes/jsi !<print-str>
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@<print-hex> ( short* -- )
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SWP <print-hex>/b
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&b ( byte -- )
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DUP #04 SFT <print-hex>/c
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&c ( char -- )
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#0f AND DUP #09 GTH #27 MUL ADD #30 ADD #18 DEO
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JMP2r
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@<print-str> ( str* -- )
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&w ( -- )
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LDAk #18 DEO
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INC2 LDAk ?&w
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POP2 JMP2r
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@tests
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=try-divzero =try-underflow =try-overflow =exit
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@err
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=dict/unknown =dict/underflow =dict/overflow =dict/divzero
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@dict ( )
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&error "error, 20 "during 20 $1
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&unknown "Unkown 20 $1
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&underflow "Underflow 20 $1
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&overflow "Overflow 20 $1
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&divzero "Division 20 "by 20 "zero 20 $1
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&at ", 20 "at 20 "# $1
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&instruction "Press 20 "enter 20 "to 20 "test 20 "each 20 "error. 0a $1
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@opcodes
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[
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"LIT $1 "INC $1 "POP $1 "NIP $1
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"SWP $1 "ROT $1 "DUP $1 "OVR $1
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"EQU $1 "NEQ $1 "GTH $1 "LTH $1
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"JMP $1 "JCN $1 "JSR $1 "STH $1
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"LDZ $1 "STZ $1 "LDR $1 "STR $1
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"LDA $1 "STA $1 "DEI $1 "DEO $1
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"ADD $1 "SUB $1 "MUL $1 "DIV $1
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"AND $1 "ORA $1 "EOR $1 "SFT $1
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&brk "BRK $1 &jmi "JMI $1 &jci "JCI
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$1 &jsi "JSI $1 ]
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