44 lines
1.2 KiB
Plaintext
44 lines
1.2 KiB
Plaintext
define(`ASM_DATA',`.BYT $*')
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define(`ASM_DATA_W',`.WORD $*')
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define(`ASM_ADDR',`.WORD $*')
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define(`ASM_RES',`.DSB $1,ifelse(`$2',`',0,$2)')
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define(`NL',`
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')
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changecom(`;',NL())
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dnl assumes no single-letter macros
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define(`SAFESUB',
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`ifelse(
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$#,0,``$0'',
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$#,2,`$0($@,eval(len(`$1')-($2)))',
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eval(`$3-0'),0,`',
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`substr(`$1',eval($2),1)`'$0(`$1',eval(($2)+1),eval(($3)-1))')')
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define(`STR_REVERSE',
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`ifelse(
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len(`$1'),0,`',
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`$0(SAFESUB(`$1',1))`'SAFESUB(`$1',0,1)')')
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define(`STR_FORCHAR',
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`ifelse(
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`$2',`',`',
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`pushdef(`$1',SAFESUB(`$2',0,1))$3`'popdef(`$1')`'$0($1,SAFESUB(`$2',1),`$3')')')
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define(`STR_FORCHAR_LAST',
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`ifelse(
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len(`$2'),1,`pushdef(`$1',`$2')$4`'popdef(`$1')',
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`pushdef(`$1',SAFESUB(`$2',0,1))$3`'popdef(`$1')`'$0($1,SAFESUB(`$2',1),`$3',`$4')')')
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define(`HICHAR',`("`$1'"|%10000000)')
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define(`LOCHAR',`("`$1'"&%01111111)')
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define(`HIASCII',`STR_FORCHAR(__,`$1',`ASM_DATA(HICHAR(__)) NL()')')
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define(`LOASCII',`STR_FORCHAR(__,`$1',`ASM_DATA(LOCHAR(__)) NL()')')
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define(`HLASCII',`STR_FORCHAR_LAST(__,`$1',`ASM_DATA(HICHAR(__)) NL()',`ASM_DATA(LOCHAR(__)) NL()')')
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define(`LHASCII',`STR_FORCHAR_LAST(__,`$1',`ASM_DATA(LOCHAR(__)) NL()',`ASM_DATA(HICHAR(__)) NL()')')
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