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CDP1855 Datasheet(PDF) 9 Page - Intersil Corporation |
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CDP1855 Datasheet(HTML) 9 Page - Intersil Corporation |
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9 / 15 page  4-55 The result of 201F7C16 x 723C0916 is 0E558DBA2B5C = 1576061279727610. It will be stored in memory as follows: 0010 653C; 0017 OUT 5; DC 030H . . LOAD NEXT MSB OF Z REG 0012 ; 0018 . . WITH 3C 0012 6509; 0019 OUT 5; DC 09H . . LOAD LSB OF Z REGISTER 0014 ; 0020 . . WITH 09 0014 6759; 0021 OUT 7; DC 059H . . LOAD CONTROL REGISTERS 0016 ; 0022 . . RESETTING Y REGISTERS 0016 ; 0023 . . AND SEQUENCE COUNTERS 0016 ; 0024 . . AND STARTING MULTIPLY 0016 ; 0025 . . OPERATION DELAY FOR MULTIPLY TO FINISH 0016 E2; 0026 SEX R2 0017 6E60; 0027 INP 6; IRX . . MSB OF RESULTS IS STORED 0019 ; 0028 . . AT LOCATION 0030 0019 6E60; 0029 INP 6; IRX 001B 6E60; 0030 INP 6; IRX 001D 6D60; 0031 INP 5; IRX 001F 6D60; 0032 INP 5; IRX 0021 6D; 0033 INP 5 . . COMPLETE LOADING RESULT 0022 ; 0034 . . INTO MEMORY LOCATIONS 0022 ; 0035 . . 0030 TO 0035 0022 ; 0036 . . RESULTS = 0E558DBA2B5C 0022 3022; 0037 STOP BR STOP 0024 ; 0038 END 0000 Programming Example for Multiplication For a 24-bit x 24-bit multiply using the system shown in Figure 5, the following is an assembly listing of a program to multiply 201F7C16 by 723C0916: (Continued) MEMORY LOCATION OP CODE LINE NO. ASSEMBLY LANGUAGE LOC BYTE 0030 0E 31 55 32 8D 33 BA 34 2B 35 5C BEFORE MULTIPLY MDU1 MDU2 MDU3 REGISTER X 20 1F 7C REGISTER Y 00 00 00 REGISTER Z 72 3C 09 AFTER MULTIPLY MDU1 MDU2 MDU3 REGISTER X 20 1F 7C REGISTER Y 0E 55 8D REGISTER Z BA 2B 5C CDP1855, CDP1855C |
Similar Part No. - CDP1855 |
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Similar Description - CDP1855 |
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