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UPD70F3201 Datasheet(PDF) 54 Page - NEC |
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UPD70F3201 Datasheet(HTML) 54 Page - NEC |
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54 / 98 page  Preliminary Product Information U15436EJ1V0PM 54 µµµµPD703201, 703201Y, 703204, 703204Y, 70F3201, 70F3201Y, 70F3204, 70F3204Y 19. INSTRUCTION SET LIST 19.1 Conventions (1) Register symbols used to describe operands Register Symbol Explanation reg1 General-purpose register: Used as source register. reg2 General-purpose register: Used mainly as destination register. Also used as source register in some instructions. reg3 General-purpose register: Used mainly to store the remainder of division results and the higher 32 bits of multiplication results. bit#3 3-bit data for specifying the bit number immX X bit immediate data dispX X bit displacement data regID System register number vector 5-bit data that specifies the trap vector (00H to 1FH) cccc 4-bit data that shows the condition code sp Stack pointer (r3) ep Element pointer (r30) listX X item register list (2) Register symbols used to describe opcodes Register Symbol Explanation R 1-bit data of the code that specifies reg1 or regID r 1-bit data of the code that specifies reg2 w 1-bit data of the code that specifies reg3 d 1-bit displacement data I 1-bit immediate data (indicates the higher bits of immediate data) i 1-bit immediate data cccc 4-bit data that shows the condition codes CCCC 4-bit data that shows the condition codes of the Bcond instruction bbb 3-bit data for specifying the bit number L 1-bit data that specifies a program register in the register list S 1-bit data that specifies a system register in the register list |
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