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PM0044 数据表(PDF) 139 Page - STMicroelectronics |
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PM0044 数据表(HTML) 139 Page - STMicroelectronics |
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139 / 162 page ![]() PM0044 STM8 instruction set Doc ID 13590 Rev 3 139/162 Syntax RRWA dst e.g. RRWA Y,A Operation A => dstH => dstL => A Description The destination index register and Accumulator are rotated right by 1-byte. Instruction overview N ⇒ R15 Set if bit 15 of the result is set (negative value), cleared otherwise. Z ⇒ R15.R14.R13.R12.R11.R10.R9.R8.R7.R6.R5.R4.R3.R2.R1.R0 Set if the result is zero (0x0000), cleared otherwise. Detailed description See also: RLWA, SWAPW RRWA Rotate Right Word through A RRWA mnem dst src Affected condition flags VI1 H I0 N Z C RLWA X A ---- N Z - RLWA Y A ---- N Z - dst src Asm cy lgth Op-code(s) ST7 XA RRWA X 1 1 01 YA RRWA Y 1 2 90 01 |
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