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PM0044 Datasheet(PDF) 101 Page - STMicroelectronics |
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PM0044 Datasheet(HTML) 101 Page - STMicroelectronics |
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101 / 162 page  PM0044 STM8 instruction set Doc ID 13590 Rev 3 101/162 Syntax DIV dst,A e.g. DIV X,A Operation dst <= dst / A (Quotient) A <= dst%A (Remainder) Description Divides a 16-bit unsigned value, dividend, contained in an index register (X or Y) by an 8-bit value, divisor, contained in A. The quotient is placed in the same index register and the remainder is placed in A. The register values are unchanged in the case of a division by zero. Note: Note: This instruction is interruptible, generating a latency of 1 cycle only. Instruction overview V ⇒ 0 Reset. H ⇒ 0 Reset. N ⇒ 0 Reset. Z ⇒ Q15.Q14.Q13.Q12.Q11.Q10.Q9.Q8.Q7.Q6.Q5.Q4.Q3.Q2.Q1.Q0 Set if the quotient is zero (0x0000), cleared otherwise. C ⇒ A7.A6.A5.A4.A3.A2.A1.A0 Set if division by 0, cleared otherwise. Detailed description See also: DIVW, ADD, ADC, SUB, SBC, MUL DIV Divide (unsigned) DIV mnem dst src Affected condition flags VI1 H I0 N Z C DIV X A 0 - 0 - 0 Z C DIV Y A 0 - 0 - 0 Z C dst src Asm cy lgth Op-code(s) ST7 X A DIV X,A 2 to 17 1 62 Y A DIV Y,A 2 to 17 2 90 62 |
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