ref: a8d747d994d2514cfddf4fe866a2c7ebd689af6d
dir: /sys/src/libc/68000/getfcr.s/
TEXT getfsr(SB), $0 MOVL $0, R0 MOVL FPSR, R0 RTS TEXT setfsr(SB), $0 MOVL new+0(FP), R1 MOVL R1, FPSR RTS TEXT getfcr(SB), $0 MOVL $0, R0 MOVL FPCR, R0 RTS TEXT setfcr(SB), $0 MOVL new+0(FP), R1 MOVL R1, FPCR RTS