SWI_handler: .asmfunc
STMFD R13!,{R0-R12, R14} ;
SUB R13, R13, #0x4 ;
LDR R0, [R14, #-4] ;
BIC R0, R0, #0xFF000000 ;
CMP R0, #327680 ;
BNE NOPRIV ;
MRS R0, SPSR ;
BIC R0, R0, #0x1F ;
ORR R0, R0, #0x1F ;
MSR SPSR_CF, R0 ;
NOPRIV: ADD R13, R13, #0x4 ;
LDMFD R13!, {R0-R12, R14} ;
MOVS PC, R14 ;
.endasmfunc
以上代码编译时报错：[E0002] Illegal mnemonic specified
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