2 * -------------------------------------------
3 * MSP432 DriverLib - v01_04_00_18
4 * -------------------------------------------
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39 void FPU_enableModule(void)
42 // Enable the coprocessors used by the floating-point unit.
44 SCB->CPACR = ((SCB->CPACR & ~(SCB_CPACR_CP11_M | SCB_CPACR_CP10_M))
45 | SCB_CPACR_CP11_M | SCB_CPACR_CP10_M);
48 void FPU_disableModule(void)
51 // Disable the coprocessors used by the floating-point unit.
53 SCB->CPACR = ((SCB->CPACR & ~(SCB_CPACR_CP10_M | SCB_CPACR_CP11_M)));
56 void FPU_enableStacking(void)
59 // Enable automatic state preservation for the floating-point unit, and
60 // disable lazy state preservation (meaning that the floating-point state
61 // is always stacked when floating-point instructions are used).
63 FPU->FPCCR = (FPU->FPCCR & ~FPU_FPCCR_LSPEN) | FPU_FPCCR_ASPEN;
66 void FPU_enableLazyStacking(void)
69 // Enable automatic and lazy state preservation for the floating-point
72 FPU->FPCCR |= FPU_FPCCR_ASPEN | FPU_FPCCR_LSPEN;
75 void FPU_disableStacking(void)
78 // Disable automatic and lazy state preservation for the floating-point
81 FPU->FPCCR &= ~(FPU_FPCCR_ASPEN | FPU_FPCCR_LSPEN);
84 void FPU_setHalfPrecisionMode(uint32_t mode)
87 // Set the half-precision floating-point format.
89 FPU->FPDSCR = (FPU->FPDSCR & ~(FPU_FPDSCR_AHP_Msk)) | mode;
92 void FPU_setNaNMode(uint32_t mode)
97 FPU->FPDSCR = (FPU->FPDSCR & ~(FPU_FPDSCR_DN_Msk)) | mode;
100 void FPU_setFlushToZeroMode(uint32_t mode)
103 // Set the flush-to-zero mode.
105 FPU->FPDSCR = (FPU->FPDSCR & ~(FPU_FPDSCR_FZ_Msk)) | mode;
108 void FPU_setRoundingMode(uint32_t mode)
111 // Set the rounding mode.
113 FPU->FPDSCR = (FPU->FPDSCR & ~(FPU_FPDSCR_RMode_Msk)) | mode;