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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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SC312XDP512F0MPVR датащи(PDF) 253 Page - Freescale Semiconductor, Inc |
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SC312XDP512F0MPVR датащи(HTML) 253 Page - Freescale Semiconductor, Inc |
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253 / 1350 page  Chapter 6 XGATE (S12XGATEV2) MC9S12XDP512 Data Sheet, Rev. 2.17 Freescale Semiconductor 253 Operation RS.H - IMM8 - C ⇒ NONE, only condition code flags get updated Subtracts the carry bit and the 8 bit constant IMM8 contained in the instruction code from the high byte of the source register RD using binary subtraction and updates the condition code register accordingly. The carry bit and Zero bits are taken into account to allow a 16 bit compare in the form of CMPL R2,#LOWBYTE CPCH R2,#HIGHBYTE BCC ; branch condition Remark: There is no equivalent operation using triadic addressing. Comparing the values of two registers can be performed by using the subtract instruction with R0 as destination register. CCR Effects Code and CPU Cycles CPCH Compare Immediate 8 bit Constant with Carry (High Byte) CPCH NZ V C ∆∆∆∆ N: Set if bit 15 of the result is set; cleared otherwise. Z: Set if the result is $00 and Z was set before this operation; cleared otherwise. V: Set if a two´s complement overflow resulted from the operation; cleared otherwise. RS[15] & IMM8[7] & result[15] | RS[15] & IMM8[7] & result[15] C: Set if there is a carry from the bit 15 of the result; cleared otherwise. RS[15] & IMM8[7] | RS[15] & result[15] | IMM8[7] & result[15] Source Form Address Mode Machine Code Cycles CPCH RD, #IMM8 IMM8 1 1 0 1 1 RS IMM8 P |
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