[wavedrom, ,svg]
....
{reg:[
    { bits:  7, name: 0x73, attr: ['SYSTEM']},
    { bits:  5, name: 'rd'},
    { bits:  3, name: 0x4 },
    { bits:  5, name: 'rs1'},
    { bits:  5, name: 'rs2'},
    { bits:  1, name: 0x1 },
    { bits:  2, name: 'n[1:0]' },
    { bits:  2, name: 0x0 },
    { bits:  1, name: 'n[2]' },
    { bits:  1, name: 0x1 },
], config: {fontsize: 11}}
....
