ASMB,L,R,C * * **************************************************************** * * (C) COPYRIGHT HEWLETT-PACKARD COMPANY 1979. ALL RIGHTS * * * RESERVED. NO PART OF THIS PROGRAM MAY BE PHOTOCOPIED, * * * REPRODUCED OR TRANSLATED TO ANOTHER PROGRAM LANGUAGE WITHOUT * * * THE PRIOR WRITTEN CONSENT OF HEWLETT-PACKARD COMPANY. * * **************************************************************** * * NAME: PART OF MATH LIBRARY * SOURCE: 24998-18XXX SEE NAM FOR LAST THREE DIGITS * RELOC: PART OF 24998-12001 * PGMR: BG & JTS * HED ".DDE" - DOUBLE INTEGER DECREMENT. NAM .DDE,7 24998-1X039 REV.2001 780818 * ENT .DDE * A EQU 0 B EQU 1 * * .DDE SUBTRACTS ONE FROM A DOUBLE INTEGER. * * CALLING SEQUENCE: * * DLD * JSB .DDE * (A,B) = RESULT * * IF THE ARGUMENT IS (100000,000000) THE VALUE (077777,177777) * IS RETURNED AND THE OVERFLOW BIT IS SET, ELSE IT IS CLEARED. * THE "E" BIT IS CHANGED ONLY IF BOTH IT AND THE ARGUMENT ARE ZERO. SPC 4 .DDE NOP CLO NEGATE ARGUMENT. CMA CMB ISZ B JMP *+2 INA CMA COMPLEMENT IT. CMB JMP .DDE,I * END