Suggestion: add the ability to display registers from Wavedrom

[DarkHarryk]

Example code:

{
  "reg": [
    { "name": "0x3", "bits": 7, "attr": ['CMD'] },
    { "name": "0x1", "bits": 1, "attr": ['REC'] },
    { "name": "OP_T", "bits": 8, "attr": ['OP_T'] },
    { "name": "0x0", "bits": 13, "attr": ['ARG_POINTER'] },
    { "name": "0x2", "bits": 3, "attr": ['MODE'] }
  ],
}

It would be good to add width adjustment and font size change.

[cdelker]

Added an initial implementation in 4ec1822. Still needs some testing and documentation before I close out the issue. Not sure if it captures all the options from Wavedrom since I didn't actually dig through their code. There are a couple of differences to make it consistent with the rest of schemdraw: hspace and wspace refer to the size of the bitfield rectangle, not the whole image, and margin is ignored since margins may be controlled by placement within a schemdraw Drawing. And the type parameter may be any string color in addition to the 0-9 codes.

[DarkHarryk]

Thanks for your reply! It worked! Your tool (Schemdraw) is simply wonderful.

If a feature for adjusting the width of the field based on its content or manually adjusting the width and height of the fields is added in the future, that would be ideal. For example, in the image above, the value 0x001 extends beyond the boundaries of its field. However, I would prefer not to do this in the second line (“lanes”: 2). This could be done, for example, by reducing the width of the ARG_POINTER field, if possible in the future.

For example:

[cdelker]

Good idea. I added a scale parameter in 42f382a. Give it a factor less than 1 to shrink the bit width for that block, or greater than 1 to expand.

[DarkHarryk]

Source code:

{"reg": [
    { "name": "0x3", "bits": 7, "attr": ['CMD'] },
    { "name": "0x001", "bits": 1, "attr": ['REC'], "scale": 3 },
    { "name": "OP_T", "bits": 8, "attr": ['OP_T'] },
    { "name": "0x0", "bits": 13, "attr": ['ARG_POINTER'], "scale": .5 },
    { "name": "0x2", "bits": 3, "attr": ['MODE'] }
],
}

The numbers 29 and 28, as well as 16 and 15, are too close to each other. There is not enough space between them.