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UPD784938 Datasheet(PDF) 90 Page - NEC |
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UPD784938 Datasheet(HTML) 90 Page - NEC |
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90 / 733 page  90 CHAPTER 3 CPU ARCHITECTURE Preliminary User’s Manual U13987EJ1V0UM00 Figure 3-11. Data Restored from Stack Area Note This 4-bit data is ignored. POP sfr instruction stack POP sfrp instruction stack Upper byte Lower byte Upper byte –Note PC15 to PC8 PC7 to PC0 PC15 to PC8 PC7 to PC0 PC19 to PC16 PC19 to PC16 PSWH7 to PSWH4 PSWH7 to PSWH4 PSWL PSWL R7 R6 R5 R4 RP3 RP2 AX A X Middle byte Lower byte POP rg instruction stack POP PSW instruction stack RET instruction stack RETI, RETB instruction stack POP post, POPU post instruction (In case of POP AX, RP2, RP3) stack SP ←SP+1 SP+1 ↑ SP SP ←SP+2 ↑ SP+1 ↑ SP SP ←SP+3 SP+2 ↑ SP+1 ↑ SP SP ←SP+3 SP+2 ↑ SP+1 ↑ SP SP ←SP+4 SP+3 ↑ SP+2 ↑ SP+1 ↑ SP SP ←SP+6 SP+5 ↑ SP+4 ↑ SP+3 ↑ SP+2 ↑ SP+1 ↑ SP SP ←SP+2 SP+1 ↑ SP –Note |
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