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HT95C30P Datenblatt(PDF) 34 Page - Holtek Semiconductor Inc |
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HT95C30P Datenblatt(HTML) 34 Page - Holtek Semiconductor Inc |
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34 / 42 page ![]() RET Return from subroutine Description The program counter is restored from the stack. This is a 2-cycle instruction. Operation PC ¬ Stack Affected flag(s) TC2 TC1 TO PD OV Z AC C ¾ ¾ ¾¾¾¾¾¾ RET A,x Return and place immediate data in the accumulator Description The program counter is restored from the stack and the accumulator loaded with the speci- fied 8-bit immediate data. Operation PC ¬ Stack ACC ¬ x Affected flag(s) TC2 TC1 TO PD OV Z AC C ¾ ¾ ¾¾¾¾¾¾ RETI Return from interrupt Description The program counter is restored from the stack, and interrupts are enabled by setting the EMI bit. EMI is the enable master (global) interrupt bit. Operation PC ¬ Stack EMI ¬ 1 Affected flag(s) TC2 TC1 TO PD OV Z AC C ¾ ¾ ¾¾¾¾¾¾ RL [m] Rotate data memory left Description The contents of the specified data memory are rotated 1 bit left with bit 7 rotated into bit 0. Operation [m].(i+1) ¬ [m].i; [m].i:bit i of the data memory (i=0~6) [m].0 ¬ [m].7 Affected flag(s) TC2 TC1 TO PD OV Z AC C ¾ ¾ ¾¾¾¾¾¾ RLA [m] Rotate data memory left and place result in the accumulator Description Data in the specified data memory is rotated 1 bit left with bit 7 rotated into bit 0, leaving the rotated result in the accumulator. The contents of the data memory remain unchanged. Operation ACC.(i+1) ¬ [m].i; [m].i:bit i of the data memory (i=0~6) ACC.0 ¬ [m].7 Affected flag(s) TC2 TC1 TO PD OV Z AC C ¾ ¾ ¾¾¾¾¾¾ HT95L100/10P Rev. 0.10 34 October 1, 2002 Preliminary |
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