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r1,R2 ˉ ˉ ˉ LD r2,R1 ˉ ˉ ˉ LD cc,RA ˉ ˉ ˉ JR r1,IM ˉ ˉ ˉ LD cc,DA ˉ ˉ ˉ JP r1 ˉ ˉ ˉ INC 1 2 3 4 5 6 IDLE 7 STOP 8 DI 9 EI A RET B IRET C RCF D SCF E CCF F NOP r1,R2 r2,R1 cc,RA r1,IM cc,DA r1 S3C9442/C9444/F9444/C9452/C9454/F9454 SAM88RCRI INSTRUCTION SET CONDITION CODES The opcode of a conditional jump always contains a 4-bit field called the condition code (cc). This specifies under which conditions it is to execute the jump. For example, a conditional jump with the condition code for "equal" after a compare operation only jumps if the two operands are equal. Condition codes are listed in Table 6-6. The carry (C), zero (Z), sign (S), and overflow (V) flags are used to control the operation of conditional jump instructions. Table 6-6. Condition Codes Binary Mnemonic Description Flags Set 0000 F Always false – 1000 T Always true – 0111 (1) C Carry C = 1 1111 (1) NC No carry C = 0 0110 (1) Z Zero Z = 1 1110 (1) NZ Not zero Z = 0 1101 PL Plus S = 0 0101 MI Minus S = 1 0100 OV Overflow V = 1 1100 NOV No overflow V = 0 0110 (1) EQ Equal Z = 1 1110 (1) NE Not equal Z = 0 1001 GE Greater than or equal (S XOR V) = 0 0001 LT Less than (S XOR V) = 1 1010 GT Greater than (Z OR (S XOR V)) = 0 0010 LE Less than or equal (Z OR (S XOR V)) = 1 1111 (1) UGE Unsigned greater than or equal C = 0 0111 (1) ULT Unsigned less than C = 1 1011 UGT Unsigned greater than (C = 0 AND Z = 0) = 1 0011 ULE Unsigned less than or equal (C OR Z) = 1 NOTES: 1. It indicates condition codes that are related to two different mnemonics but which test the same flag. For example 更多：https://www.bmcx.com/ , Z and EQ are both true if the zero flag (Z) is set, but after an ADD instruction, Z would probably be used; after a CP instruction, however, EQ would probably be used. 2. For operations involving unsigned numbers, the special condition codes UGE, ULT, UGT, and ULE must be used. SAM88RCRI INSTRUCTION SET S3C9442/C9444/F9444/C9452/C9454/F9454 INSTRUCTION DESCRIPTIONS This section contains detailed information and programming examples for each instruction in the SAM87Ri instruction set. Information is arranged in a consistent format for improved readability and for fast referencing. The following information is included in each instruction description: — Instruction name (mnemonic) — Full instruction name — Source/destination format of the instruction operand — Shorthand notation of the instruction's operation — Textual description of the instruction's effect — Specific flag settings affected by the instruction — Detailed description of the instruction's format, execution time, and addressing mode(s) — Programming example(s) explaining how to use the instruction S3C9442/C9444/F9444/C9452/C9454/F9454 SAM88RCRI INSTRUCTION SET ADC — Add with Carry ADC dst,src Operation: dst . dst + src + c The source operand, along with the setting of the carry flag, is added to the destination operand and the sum is stored in the destination. The contents of the source are unaffected. Two's-complement addition is performed. In multiple precision arithmetic, this instruction permits the carry from the addition of low-order operands to be carried into the addition of high-order operands.