Numeric Formats - Analog Devices ADSP-21261 SHARC Hardware Reference Manual

MODE1
X Y
MULTIPLIER
MRF2
ASTATx
TO PROGRAM SEQUENCER
Figure 2-1. Computational Block

Numeric Formats

The DSP supports the 32-bit single-precision floating-point data format
defined in the IEEE Standard 754/854. In addition, the DSP supports an
extended-precision version of the same format with eight additional bits in
the mantissa (40 bits total). The DSP also supports 32-bit fixed-point for-
mats—fractional and integer—which can be signed (twos-complement) or
unsigned.
ADSP-2126x SHARC Processor Hardware Reference
PM DATA BUS
DM DATA BUS
REGISTER FILE
(16 x 40-BIT)
R0 R8
R1 R9
R2 R10
R3 R11
R4 R12
R5 R13
R6 R14
R7 R15
MRF1 MRF0
STKYx
Processing Elements
Z Y X Y
ALU
SHIFTER
X
2-3