SH7055S Datasheet, PDF (68/1002 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7000 Series

2.1.4 Floating-Point Registers
There are sixteen 32-bit floating-point registers, designated FR0 to FR15, which are used by
floating-point instructions. FR0 functions as the index register for the FMAC instruction. These
registers are incorporated into the floating-point unit (FPU). For details, see section 3, Floating-
Point Unit (FPU).
31
FR0
FR1
0
FR0 functions as the index register
for the FMAC instruction.
FR2
FR3
FR4
FR5
FR6
FR7
FR8
FR9
FR10
FR11
FR12
FR13
FR14
FR15
Figure 2.4 Floating-Point Registers
Rev.2.0, 07/03, page 30 of 960