pop {r1, r2} 他们的先后顺序为 push {r2} push {r1} pop {r1} pop {r2}) 这里已经到最后了,拿比较常见的push {r1, lr} pop {r1,pc} 举这个例子 mov lr,#0xpc+4 mov pc,#0x地址+8 //bl #0x地址 地址: sub sp, #4 str lr, [sp]//前面说了lr的值为bl指令下一条的地址, //把这个...
POP {reglist,PC}这条指令引起处理器转移到从堆栈弹出给PC的地址,这通常是从子程序返回,其中LR在子程序开头压进堆栈。这些指令不影响条件码标志。 指令示例: PUSH {R0,R3,R5} PUSH {R1,R4-R7} PUSH {R0,LR} POP {R2,R5} POP {R0-R7,PC} 了解了之后我们就可以用verilog写一个POP和PUSH指令的实现。
首先说明一下 pc:程序寄存器,保留下一条CPU即将执行的指令 lr: 连接返回寄存器,保留函数返回后,下一条应执行的指令 PUSH {r4-r7,lr} 的确如你所说保存r4,r5,r6,r7,lr 的值到内存的栈中,那么最后当执行完某操作后,你想返回到lr指向的地方执行,当然要给pc了,因为pc保留下一条CPU即将...
PUSH和POP未按预期工作怎么解决? , #1FiboRCMP R0, #1PUSHEQ {R5, R6, LR}BEQ ReturnSUBS R0, R0, #1BL FiboR ADD R4, R2, R3 PUSH {R4, R2, LR cherry1989 2023-01-04 07:17:03 百度网盘Android版11.3.2:新增分享push提示 在百度网盘的使用过程中,经常会遇到分享的资源已过期的问题。如果你...
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The ultrafast oFtIhCfSeTR2ν.S2d8 aymp,snysemaiamn(s1uit5chrs7ee4moI fcCe2mnT3t−0ss1 ,t)fastahtwnee.de2Srνei.2nacs c,poNemOst2dhm(ye1on2vna8imbl3yr icaocmtbsios−oen1br)avsmleemdrovdioeneddstehfosrenooνlmfy8νas,8tahashy,osmeywms(e1atm6hn0edo2vd...
At least while debugging U-boot 2022, using mixed ARM/Thumb compiled code, breaks and steps do ...
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catalysts Article Novel Push–Pull Dyes Derived from 1H-cyclopenta[b]naphthalene-1,3(2H)-dione as Versatile Photoinitiators for Photopolymerization and Their Related Applications: 3D Printing and Fabrication of Photocomposites Ke Sun 1,2, Shaohui Liu 1,2, Corentin Pigot 3 , Damien Brunel 3 , ...
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