Texas Instruments TMS320C3x - Manual (Page 687)

Subtract Floating-Point Value SUBF
13-229 Assembly Language Instructions
Example SUBF *AR0 – – (IR0),R5
Before Instruction After Instruction
R5 07 33C0 0000 R5 05 1D00 0000
AR0 80 9888 AR0 80 9808
IR0 80 IR0 80
LUF 0 LUF 0
LV 0 LV 0
UF 0 UF 0
N 0 N 0
Z 0 Z 0
V 0 V 0
C 0 C 0
Data memory
809888h 70C8000 809888h 70C8000
3.9250e+01
1.4050e+02 1.4050e+02
1.79750000e+02