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更加详细一点,见下:<br />
“<br />
Predeclared register names<br />
图表 30 ARM 寄存器的别名<br />
寄存器名字<br />
Reg # APCS 意义<br />
R0 a1 工作寄存器<br />
R1 a2 "<br />
R2 a3 "<br />
R3 a4 "<br />
R4 v1 必须保护<br />
R5 v2 "<br />
R6 v3 "<br />
R7 v4 "<br />
R8 v5 "<br />
R9 v6 "<br />
R10 sl 栈限制<br />
R11 fp 桢指针<br />
R12 ip 内部过程调用寄存器<br />
R13 sp 栈指针<br />
R14 lr 连接寄存器<br />
R15 pc 程序计数器<br />
http://www.keil.com/support/man/docs/armasm/armasm_ch03s03s01.htm<br />
The following register names are predeclared:<br />
r0-r15 and R0-R15<br />
a1-a4 (argument, result, or scratch registers, synonyms for r0 to<br />
r3)<br />
v1-v8 (variable registers, r4 to r11)<br />
sb and SB (static base, r9)<br />
ip and IP (intra-procedure-call scratch register, r12)<br />
sp and SP (stack pointer, r13)<br />
lr and LR (link register, r14)<br />
pc and PC (program counter, r15).<br />
Predeclared extension register names<br />
http://www.keil.com/support/man/docs/armasm/armasm_ch03s03s02.htm<br />
The following extension register names are predeclared:<br />
d0-d31 and D0-D31 (VFP double-precision registers)<br />
s0-s31 and S0-S31 (VFP single-precision registers).<br />
Predeclared coprocessor names
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