//sp float convert and compare

[wavedrom, ,svg]
....
{reg: [
  {bits: 7, name: 'opcode', attr: ['7','OP-FP', 'OP-FP']},
  {bits: 5, name: 'rd',     attr: ['5','dest', 'dest']},
  {bits: 3, name: 'rm',  attr: ['3','RM','RM']},
  {bits: 5, name: 'rs1',    attr: ['5','src', 'src']},
  {bits: 5, name: 'rs2',    attr: ['5','W[U]/L[U]D', 'W[U]/L[U]']},
  {bits: 2, name: 'fmt',    attr: ['2','S','S']},
  {bits: 5, name: 'funct5', attr: ['5','FCVT.int.fmt', 'FCVT.fmt.int']},
]}
....


