uxn/examples/hello.usm

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( hello world )
;iterator
:dev1r FFF0
:dev1w FFF1
|0100 @RESET
@word1 "hello_word ( len: 0x0b )
@loop
,dev1w STR ( write to stdout )
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,incr JSR ( increment itr )
,word1 ,strlen JSR ( get strlen )
NEQ ,loop ROT JSR? ( loop != strlen )
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BRK
@strlen
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,0001 ADD^ LDR
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RTS
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@incr
,iterator LDR
,01 ADD
,iterator STR
,iterator LDR
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RTS
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|c000 @FRAME BRK
|d000 @ERROR BRK
|FFFA .RESET .FRAME .ERROR