?? intdiv.asm
字號(hào):
;----ACC=DIVISOR, ACCB(|.|<|ACC|)=DIVIDEND ,RESULT(1.15) IN LOW ACC-
;--ACCB/ACC------------
INTDIV
LDP #ACCBUF
SACL ACCBUF
EXAR
SACL ACCBUF+1
LACC ACCBUF+1,15 ;ACCB<<15/ACC
EXAR
XORB
SACH SIGNFLAG ;if (acc*accb<0) signflag<0
LACC ACCBUF
ABS
SACL ACCBUF
LACB
ABS
RPT #15
SUBC ACCBUF
BIT SIGNFLAG,0 ;test if signflag(bit 15)<0
BCND INTDIV_1,NTC
NEG
INTDIV_1
SACL ACCBUF ;in order to sign extend high acc
LACC ACCBUF
RET
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