.text .align 4 .code 32 .global L_msu .type L_msu, %function L_msu: STMFD sp!,{r4 - r5} # MVN r4,#0 # LSL r4,r4,#15 MOVT r4,#0xFFFF MOVW r4,#0x8000 MOV r3,#0 CMN r1,r4 BNE NORMAL CMN r2,r4 BNE NORMAL MOV r3,#1 NORMAL: SMULBB r1,r1,r2 QDSUB r0,r0,r1 QSUB r0,r0,r3 LDMFD sp!,{r4 - r5} BX lr
