CRTC question

[Fran123]

Hello

There's one thing I don't quite understand about emulators. Why is HCC (Winape) or Char (Caprice) set to 0 when the horizontal raster is in the column before the character? Shouldn't it be set to 0 when it's in the column of the first character?

Thanks

[McArti0]

Give us a screenshot while paused in WinAPE.

[Fran123]

Give us a screenshot while paused in WinAPE.

[arnoldemu]

Check with 'border 0' to see if it really is the char before.

I expect it to be set to 0 at the the end of the last char on the previous line and start of the first char on the next line after.

With column 0 being the first column of graphics.

[Longshot]

Hello

Winape shows the Gate Array displaying the word addressed by the CRTC.

There is a 1-character offset between the two circuits. In other words, the CRTC is ahead of the GATE ARRAY.

In reality, when WINAPE shows HCC(C0)=0, it is actually 1 higher at the "CRTC" level.

This is something to consider when programming the CRTC.