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PM0044 датащи(PDF) 116 Page - STMicroelectronics |
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PM0044 датащи(HTML) 116 Page - STMicroelectronics |
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116 / 162 page ![]() STM8 instruction set PM0044 116/162 Doc ID 13590 Rev 3 Syntax LDF dst,src e.g. LDF A,($555555,X) Operation dst <= src Description Load the destination byte with the source byte. The dst and src can be a memory location or accumulator register. Instruction overview N ⇒ R7 Set if bit 7 of the result is set (negative value), cleared otherwise. Z ⇒ R7.R6.R5.R4.R3.R2.R1.R0 Set if the result is zero (0x00), cleared otherwise. Detailed description See also: LD, CALLF LDF Load Far LDF mnem dst src Affected condition flags VI1 H I0 N Z C LDF A Mem - - - - N Z - LDF Mem A - - - - N Z - dst src Asm cy lgth Op-code(s) ST7 A extmem LDF A, $500000 1 4 BC ExtB MS LS A (extoff,X) LDF A,($500000,X) 1 4 AF ExtB MS LS A (extoff,Y) LDF A,($500000,Y) 1 5 90 AF ExtB MS LS A ([longptr.e],X) LDF A,([$5000.e],X) 5 4 92 AF MS LS A ([longptr.e],Y) LDF A,([$5000.e],Y) 5 4 91 AF MS LS A [longptr.e] LDF A,[$5000.e] 5 4 92 BC MS LS dst src Asm cy lgth Op-code(s) ST7 extmem A LDF $500000,A 1 4 BD ExtB MS LS (extoff,X) A LDF ($500000,X),A 1 4 A7 ExtB MS LS (extoff,Y) A LDF ($500000,Y),A 1 5 90 A7 ExtB MS LS ([longptr.e],X) A LDF ([$5000.e],X),A 4 4 92 A7 MS LS ([longptr.e],Y) A LDF ([$5000.e],Y),A 4 4 91 A7 MS LS [longptr.e] A LDF [$5000.e],A 4 4 92 BD MS LS |
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