Epson S5U1C17001C Manual page 721

Emulation Library libgcc.a (libgccM.a / libgccMD.a) (1)
Floating-point Calculation Functions
Double-type operation
__adddf3 Addition
__subdf3 Subtraction
__muldf3 Multiplication
__divdf3 Division
__negdf2 Sign change
Float-type operation
__addsf3 Addition
__subsf3 Subtraction
__mulsf3 Multiplication
__divsf3 Division
__negsf2 Sign change
Type conversion
double → unsigned long x ← a
__fixunsdfsi
__fixdfsi double → long
long → double
__floatsidf
float → unsigned long
__fixunssfsi
float → long
__fixsfsi
__floatsisf long → float
double → float
__truncdfsf2
float → double
__extendsfdf2
Comparison
__∗∗df2 double type
__∗∗sf2 float type
x ← a + b
x ← a - b
x ← a * b
x ← a / b
x ← -a
x ← a + b
x ← a - b
x ← a * b
x ← a / b
x ← -a
x ← a
x ← a
x ← a
x ← a
x ← a
x ← a
x ← a
Changes %psr and x by a - b
∗∗=eq, ne, gt, ge, lt, le
Changes %psr and x by a - %13
∗∗=eq, ne, gt, ge, lt, le
Floating-point Data Format
Double-type data format
63 62 52 51
S Exponent part
Double-type effective range
+0: 0.0e+0 0x00000000 00000000
-0: -0.0e+0 0x80000000 00000000
Maximum normalized number: 1.79769e+308 0x7fefffff ffffffff
Minimum normalized number: 2.22507e-308 0x00100000 00000000
Maximum unnormalized number: 2.22507e-308 0x000fffff ffffffff
Minimum unnormalized number: 4.94065e-324 0x00000000 00000001
Infinity: 0x7ff00000 00000000
-Infinity: 0xfff00000 00000000
Float-type data format
31 30 23 22
S Exponent part
Float-type effective range
+0: 0.0e+0f 0x00000000
-0: -0.0e+0f 0x80000000
Maximum normalized number: 3.40282e+38f 0x7f7fffff
Minimum normalized number: 1.17549e-38f 0x00800000
Maximum unnormalized number: 1.17549e-38f 0x007fffff
Minimum unnormalized number: 1.40129e-45f 0x00000001
Infinity: 0x7f800000
-Infinity: 0xff800000
Library
0
Fixed-point part
0
Fixed-point part
Reference