Fields
- __fpu_reserved: [2] s32
- __fpu_fcw: __darwin_fp_control
- __fpu_fsw: __darwin_fp_status
- __fpu_ftw: u8
- __fpu_rsrv1: u8
- __fpu_fop: u16
- __fpu_ip: u32
- __fpu_cs: u16
- __fpu_rsrv2: u16
- __fpu_dp: u32
- __fpu_ds: u16
- __fpu_rsrv3: u16
- __fpu_mxcsr: u32
- __fpu_mxcsrmask: u32
- __fpu_stmm0: __darwin_mmst_reg
- __fpu_stmm1: __darwin_mmst_reg
- __fpu_stmm2: __darwin_mmst_reg
- __fpu_stmm3: __darwin_mmst_reg
- __fpu_stmm4: __darwin_mmst_reg
- __fpu_stmm5: __darwin_mmst_reg
- __fpu_stmm6: __darwin_mmst_reg
- __fpu_stmm7: __darwin_mmst_reg
- __fpu_xmm0: __darwin_xmm_reg
- __fpu_xmm1: __darwin_xmm_reg
- __fpu_xmm2: __darwin_xmm_reg
- __fpu_xmm3: __darwin_xmm_reg
- __fpu_xmm4: __darwin_xmm_reg
- __fpu_xmm5: __darwin_xmm_reg
- __fpu_xmm6: __darwin_xmm_reg
- __fpu_xmm7: __darwin_xmm_reg
- __fpu_xmm8: __darwin_xmm_reg
- __fpu_xmm9: __darwin_xmm_reg
- __fpu_xmm10: __darwin_xmm_reg
- __fpu_xmm11: __darwin_xmm_reg
- __fpu_xmm12: __darwin_xmm_reg
- __fpu_xmm13: __darwin_xmm_reg
- __fpu_xmm14: __darwin_xmm_reg
- __fpu_xmm15: __darwin_xmm_reg
- __fpu_rsrv4: [96] u8
- __fpu_reserved1: s32