SH7750_08 Datasheet, PDF (50/1162 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer

5.5.3 Exception Requests and BL Bit ........................................................................... 158
5.5.4 Return from Exception Handling......................................................................... 158
5.6 Description of Exceptions................................................................................................. 158
5.6.1 Resets................................................................................................................... 159
5.6.2 General Exceptions .............................................................................................. 164
5.6.3 Interrupts.............................................................................................................. 178
5.6.4 Priority Order with Multiple Exceptions.............................................................. 181
5.7 Usage Notes ...................................................................................................................... 182
5.8 Restrictions ....................................................................................................................... 183
Section 6 Floating-Point Unit (FPU) ............................................................................. 185
6.1 Overview........................................................................................................................... 185
6.2 Data Formats..................................................................................................................... 185
6.2.1 Floating-Point Format.......................................................................................... 185
6.2.2 Non-Numbers (NaN) ........................................................................................... 187
6.2.3 Denormalized Numbers ....................................................................................... 188
6.3 Registers............................................................................................................................ 189
6.3.1 Floating-Point Registers....................................................................................... 189
6.3.2 Floating-Point Status/Control Register (FPSCR)................................................. 191
6.3.3 Floating-Point Communication Register (FPUL) ................................................ 192
6.4 Rounding........................................................................................................................... 193
6.5 Floating-Point Exceptions................................................................................................. 193
6.6 Graphics Support Functions.............................................................................................. 195
6.6.1 Geometric Operation Instructions........................................................................ 195
6.6.2 Pair Single-Precision Data Transfer..................................................................... 196
6.7 Usage Notes ...................................................................................................................... 197
6.7.1 Rounding Mode and Underflow Flag .................................................................. 197
6.7.2 Setting of Overflow Flag by FIPR or FTRV Instruction ..................................... 198
6.7.3 Sign of Operation Result when Using FIPR or FTRV Instruction....................... 199
6.7.4 Notes on Double-Precision FADD and FSUB Instructions ................................. 199
6.7.5 Notes on FPU Double-Precision Operation Instructions (SH7750 Only)............ 200
Section 7 Instruction Set.................................................................................................... 209
7.1 Execution Environment..................................................................................................... 209
7.2 Addressing Modes ............................................................................................................ 211
7.3 Instruction Set ................................................................................................................... 215
7.4 Usage Notes ...................................................................................................................... 227
7.4.1 Notes on TRAPA Instruction, SLEEP Instruction, and Undefined Instruction
(H'FFFD).............................................................................................................. 227
Rev.7.00 Oct. 10, 2008 Page l of lxxxiv
REJ09B0366-0700