2
2-8
32180 Group User’s Manual (Rev.1.0)
CPU
2.6 Data Formats
2.6 Data Formats
2.6.1 Data Types
The data types that can be handled by the M32R-FPU instruction set are signed or unsigned 8, 16 and 32-bit
integers and single-precision floating-point numbers. The signed integers are represented by 2’s complements.
Figure 2.6.1 Data Types
Signed byte
(8-bit) integer
Unsigned byte
(8-bit) integer
Signed halfword
(16-bit) integer
Unsigned halfword
(16-bit) integer
Signed word
(32-bit) integer
Unsigned word
(32-bit) integer
Single-precision
floating-point number
b0
b0
b0
b0
b0
b0
b7
b7
b15
b15
b31
b31
S
S
S
b0 b1
b8 b9
b31
S
E
F
S: Sign bit; E: Exponent field; F: Fraction field
Summary of Contents for M32R/ECU Series
Page 17: ...12 This page is blank for reasons of layout...
Page 712: ...CHAPTER 18 OSCILLATOR CIRCUIT 18 1 Oscillator Circuit 18 2 Clock Generator Circuit...
Page 794: ...CHAPTER 22 TYPICAL CHARACTERISTICS...
Page 796: ...APPENDIX 1 MECHANICAL SPECIFICAITONS Appendix 1 1 Dimensional Outline Drawing...
Page 798: ...APPENDIX 2 INSTRUCTION PROCESSING TIME Appendix 2 1 32180 Instruction Processing Time...
Page 802: ...APPENDIX 3 PROCESSING OF UNUSED PINS Appendix 3 1 Example Processing of Unused Pins...