On Thu, 8 Oct 2020, Thomas Bogendoerfer wrote: > + /* > + * MAC2008 toolchain never landed in real world, so we're only > + * testing whether it can be disabled and don't try to enabled > + * it. > + */ > + fcsr0 = fcsr & ~(FPU_CSR_ABS2008 | FPU_CSR_NAN2008 | FPU_CSR_MAC2008); > + write_32bit_cp1_register(CP1_STATUS, fcsr0); > + fcsr0 = read_32bit_cp1_register(CP1_STATUS); > + > + fcsr1 = fcsr | FPU_CSR_ABS2008 | FPU_CSR_NAN2008; > + write_32bit_cp1_register(CP1_STATUS, fcsr1); > + fcsr1 = read_32bit_cp1_register(CP1_STATUS); > + > + write_32bit_cp1_register(CP1_STATUS, fcsr); > + > + if (c->isa_level & (MIPS_CPU_ISA_M32R2 | MIPS_CPU_ISA_M64R2)) { > + /* > + * The bit for MAC2008 might be reused by R6 in future, > + * so we only test for R2-R5. > + */ Umm, this has formatting issues with lines extending beyond column #80. Maciej