ref: 234aafb38da9d3486cceda5c28b529a5343fdf65
dir: /sys/src/ape/lib/9/arm64/getfcr.s/
#define SYSARG5(op0,op1,Cn,Cm,op2) ((op0)<<19|(op1)<<16|(Cn)<<12|(Cm)<<8|(op2)<<5) #define FPCR SPR(SYSARG5(3,3,4,4,0)) #define FPSR SPR(SYSARG5(3,3,4,4,1)) TEXT setfcr(SB), $0 MSR R0, FPCR RETURN TEXT getfcr(SB), $0 MRS FPCR, R0 RETURN TEXT getfsr(SB), $0 MRS FPSR, R0 RETURN TEXT setfsr(SB), $0 MSR R0, FPSR RETURN