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PM0044 数据表(PDF) 113 Page - STMicroelectronics |
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PM0044 数据表(HTML) 113 Page - STMicroelectronics |
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113 / 162 page  PM0044 STM8 instruction set Doc ID 13590 Rev 3 113/162 Syntax JRxx dst e.g. JRxx loop Operation PC = PC+lgth PC <= PC + dst, if Condition is True Description Conditional relative jump. PC is updated by the signed addition of PC and dst, if the condition is true. Control, then passes to the statement addressed by the program counter. Else, the program continues normally. Instruction overview Instruction List Detailed description JRxx Conditional Jump Relative Instruction JRxx mnem dst Affected condition flags VI1 H I0 N Z C JRxx Mem - -- -- -- mnem meaning sym Condition Op-code (OC) JRC Carry C = 1 25 JREQ Equal = Z = 1 27 JRF False False 21 JRH Half-Carry H = 1 90 29 JRIH Interrupt Line is High 90 2F JRIL Interrupt Line is Low 90 2E JRM Interrupt Mask I = 1 90 2D JRMI Minus < 0 N = 1 2B JRNC Not Carry C = 0 24 JRNE Not Equal <> 0 Z = 0 26 JRNH Not Half-Carry H = 0 90 28 JRNM Not Interrupt Mask I = 0 90 2C JRNV Not Overflow V = 0 28 JRPL Plus >= 0 N = 0 2A JRSGE Signed Greater or Equal >= (N XOR V) = 0 2E JRSGT Signed Greater Than > (Z OR (N XOR V)) = 0 2C JRSLE Signed Lower or Equal <= (Z OR (N XOR V)) = 1 2D JRSLT Signed Lower Than < (N XOR V) = 1 2F JRT True True 20 JRUGE Unsigned Greater or Equal C = 0 24 JRUGT Unsigned Greater Than > C = 0 and Z = 0 22 JRULE Unsigned Lower or Equal <= C = 1 or Z = 1 23 JRC Carry C = 1 25 JRULT Unsigned Lower Than C = 1 25 JRV Overflow V = 1 29 dst Asm cy lgth Op-code(s) ST7 shortoff JRxx $15 1/2 2 Op-code XX ✗ shortoff JRxx $15 1/2 3 90 Op-code XX ✗ |
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