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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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PM0044 数据表(PDF) 38 Page - STMicroelectronics |
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PM0044 数据表(HTML) 38 Page - STMicroelectronics |
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38 / 162 page  STM8 addressing modes PM0044 38/162 Doc ID 13590 Rev 3 6.3.3 Extended Direct addressing mode (only for CALLF and JPF) The address is an extended word, thus allowing 000000 to FFFFFF addressing space, but requires 3 bytes after the op-code. Example: 000409 8D0106E5 CALLF sw_routine 0106E5 4C sw_routine INC A Action: PC = $0106E5 Figure 10. Far Direct addressing mode example Previous Value 0409 A PC 06 Steps to Determine Effective Address PC = 0409 New PC = Before Completion New PC Instruction Complete New PC = After Completion 8D EA 01 06 8D 01 4C 040A 040B 040C 040A 040B 040C 0409 0409 VR02059U INC A CALLF sw_routine CALLF sw_routine 0106E5 0106E5 0106E5 0106E5 4C E5 INC A 0106E5 0106E5 EA E5 PC=PC+1 EA=(PC):(PC+1):(PC+2) =0106E5 |
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