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780964 数据表(PDF) 96 Page - NEC |
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780964 数据表(HTML) 96 Page - NEC |
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96 / 129 page ![]() 96 CHAPTER 5 EXPLANATION OF INSTRUCTIONS User's Manual U12326EJ4V0UM Call Table CALLT Subroutine Call (Refer to the Call Table) [Instruction format] CALLT [addr5] [Operation] (SP–1) ← (PC+1)H, (SP–2) ← (PC+1)L, SP ← SP–2, PCH ← (00000000, addr5+1) PCL ← (00000000, addr5) [Operand] Mnemonic Operand([addr5]) CALLT [addr5] [Flag] ZAC CY [Description] • This is a subroutine call for call table reference. • The start address (PC+1) of the next instruction is saved in the stack and is branched to the address indicated with the word data of a call table (the higher 8 bits of address are fixed to 00000000B and the next 5 bits are specified by addr5). [Description example] CALLT [40H]; Subroutine call to the word data addresses 0040H and 0041H. |
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