Texas Instruments Tiva TM4C123GH6PM User Manual

Floating-Point Unit (FPU)
ROM Location:
ROM_APITABLE is an array of pointers located at 0x0100.0010.
ROM_FPUTABLE is an array of pointers located at ROM_APITABLE[26].
ROM_FPUNaNModeSet is a function pointer located at ROM_FPUTABLE[5].
Parameters:
ui32Mode is the mode for NaN results; which is either FPU_NAN_PROPAGATE or
FPU_NAN_DEFAULT.
Description:
This function selects the handling of NaN results during floating-point computations. NaNs can
either propagate (the default), or they can return the default NaN.
Note:
Unless this function is called prior to executing any floating-point instructions, the default mode
is used.
Returns:
None.
9.2.1.7 ROM_FPURoundingModeSet
Selects the rounding mode for floating-point results.
Prototype:
void
ROM_FPURoundingModeSet(uint32_t ui32Mode)
ROM Location:
ROM_APITABLE is an array of pointers located at 0x0100.0010.
ROM_FPUTABLE is an array of pointers located at ROM_APITABLE[26].
ROM_FPURoundingModeSet is a function pointer located at ROM_FPUTABLE[6].
Parameters:
ui32Mode is the rounding mode.
Description:
This function selects the rounding mode for floating-point results. After a floating-
point operation, the result is rounded toward the specified value. The default mode is
FPU_ROUND_NEAREST.
The following rounding modes are available (as specified by ui32Mode):
FPU_ROUND_NEAREST - round toward the nearest value
FPU_ROUND_POS_INF - round toward positive infinity
FPU_ROUND_NEG_INF - round toward negative infinity
FPU_ROUND_ZERO - round toward zero
Note:
Unless this function is called prior to executing any floating-point instructions, the default mode
is used.
Returns:
None.
April 8, 2013 85

Texas Instruments Tiva TM4C123GH6PM Specifications

General

Brand	Texas Instruments
Model	Tiva TM4C123GH6PM
Category	Microcontrollers
Language	English