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\ ks 22 dez 87 The timer utilizes the memory cell at $46C that is incremented by an interrupt. A couple of words allow this timer to be used for time delays. time-of-day and date are accessed via MS-DOS calls. \ BIMomat BIOS Timer ks 03 apr 88 Onlyforth \needs Assembler 2 loadfrom asm.scr $46C >label Counter \ 1193180 / 65536 = 18,206 Hz 1 2 +thru .( Timer geladen) cr \ BIMomat BIOS Timer ks 22 dez 87 Code ticks ( -- n ) D push D: C mov A A xor A D: mov Counter #) D mov C D: mov Next end-code : timeout? ( ticks -- ticks f ) pause dup ticks - 0< ; : till ( n -- ) BEGIN timeout? UNTIL drop ; : time ( n -- time ) ticks + ; : wait ( n -- ) time till ; : seconds ( sec -- ticks ) &18206 &1000 */ ; : minutes ( min -- ticks ) &1092 * ; \ MS-DOS time and date ks 22 dez 87 Code date@ ( -- dd mm yy ) D push $2A # A+ mov $21 int A A xor D+ A- xchg D push A push C D mov &1900 # D sub Next end-code Code time@ ( -- ss mm hh ) D push $2C # A+ mov $21 int D+ D- mov 0 # D+ mov D push D+ D- mov C+ D- xchg C push Next end-code
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