93 lines
1.6 KiB
NASM
93 lines
1.6 KiB
NASM
ECHO START 0
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LDA #3643
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STA number
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JSUB char
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JSUB nl
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JSUB char
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JSUB nl
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+LDA #test_niz
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JSUB string
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JSUB nl
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LDA number
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JSUB num
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JSUB nl
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HALT J HALT
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END ECHO
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.izpis znaka
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char WD #1
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RSUB
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.izpis newline
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nl +STA old_A
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CLEAR A
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LDCH newline
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WD #1
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+LDA old_A
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RSUB
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.izpis niza
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string +STA strptr
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loop_niz CLEAR A
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LDCH @strptr
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WD #1
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COMP #0
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JEQ out
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+LDA strptr
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ADD #1
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+STA strptr
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J loop_niz
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out RSUB
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.desetiski izpis stevila v A iz HEX
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.stevke pridobimo z mod 10, shranimo v tabelo, nato tabelo izpisemo v obratnem vrstnem redu
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num LDX digits_ix
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STA number
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DIV #10
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STA quot
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MUL #10
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STA subtrahend
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LDA number
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SUB subtrahend
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STCH digits, X
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LDA digits_ix
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ADD #1
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STA digits_ix
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LDA number
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DIV #10
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COMP #0
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JGT num
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.shrani stevec za X register in pa mejo len za naslednjo zanko loop_num
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LDA digits_ix
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STA len
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SUB #1
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STA digits_ix
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.izpis v tabele v obratnem vrstnem redu
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loop_num LDX digits_ix
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LDCH digits, X
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ADD #48 .stevke v ascii se zacnejo pri 48
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WD #1
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LDA digits_ix
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SUB #1
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STA digits_ix
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LDA i
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ADD #1
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STA i
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COMP len
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JLT loop_num
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RSUB
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old_A WORD 0
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newline BYTE 10
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test_niz BYTE C'hello world'
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BYTE 0
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strptr WORD 0
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quot WORD 0
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subtrahend WORD 0
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number WORD 0
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digits RESB 100
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digits_ix WORD 0
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i WORD 0
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len WORD 0
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