Texas Instruments TMS320C3x 사용자 설명서
TMS320C32 Memory Overview
10-6
10.2.3.2
16- or 32-Bit Floating-Point Data Types
The ’C32 supports 16- or 32-bit floating point data. For 16-bit floating-point
reads, the eight MSBs are the signed exponent and the eight LSBs are the
signed mantissa (see Section 5.3.2,
reads, the eight MSBs are the signed exponent and the eight LSBs are the
signed mantissa (see Section 5.3.2,
’C32 Short Floating-Point Format for
External 16-Bit Data, on page 5-6). When a 16-bit floating-point value is loaded
into a 40-bit register, the external memory interface zero fills the least signifi-
cant 24 bits of the register. When a 16-bit floating-point value is used as a 32-bit
on-chip input operand, the external memory interface zero fills the 16 LSBs of
the 32-bit input operand. The 32-bit floating-point data access is identical to
that of the ’C30 and ’C31.
into a 40-bit register, the external memory interface zero fills the least signifi-
cant 24 bits of the register. When a 16-bit floating-point value is used as a 32-bit
on-chip input operand, the external memory interface zero fills the 16 LSBs of
the 32-bit input operand. The 32-bit floating-point data access is identical to
that of the ’C30 and ’C31.