how to enumerate the fields of all the registers in vr_ad_reg_file

You need first to declare all your registers using the reg_def macro. Have a look at the examples under `sn_which.sh vr_ad`/examples/ directory. The file vr_ad_reg_def_example.e would be a good starting point.

You will see a number of lines like this:

reg_def  VR_AD_TX_MODE  XCORE  8'h01 {
   reg_fld resv       : uint(bits:4) : RW : 0;                    // bits[7:4]
   reg_fld frame_kind : vr_ad_tx_mode_frame_kind : RW : A : cov;  // bits[3:2]
   reg_fld dest       : uint(bits:2) : RW : 0;                    // bits[1:0]
};

 
reg_def declares the register itself, and reg_fld enumerates the fields of the register from MSB down to LSB, as per the comments. You can use any numeric type to declare the fields, including enumerated types.

As for the read/write/reset tests, vr_ad supplies a number of sequences that do this, either on a whole reg file or a user-defined subset. Take a look at vr_ad_reg_sequence_lib.e to see how the sequences are defined and how to use them. You can copy these and edit them if they don't do exactly what you want.

You need first to declare all your registers using the reg_def macro. Have a look at the examples under `sn_which.sh vr_ad`/examples/ directory. The file vr_ad_reg_def_example.e would be a good starting point.

You will see a number of lines like this:

reg_def  VR_AD_TX_MODE  XCORE  8'h01 {
   reg_fld resv       : uint(bits:4) : RW : 0;                    // bits[7:4]
   reg_fld frame_kind : vr_ad_tx_mode_frame_kind : RW : A : cov;  // bits[3:2]
   reg_fld dest       : uint(bits:2) : RW : 0;                    // bits[1:0]
};

 
reg_def declares the register itself, and reg_fld enumerates the fields of the register from MSB down to LSB, as per the comments. You can use any numeric type to declare the fields, including enumerated types.

As for the read/write/reset tests, vr_ad supplies a number of sequences that do this, either on a whole reg file or a user-defined subset. Take a look at vr_ad_reg_sequence_lib.e to see how the sequences are defined and how to use them. You can copy these and edit them if they don't do exactly what you want.