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MEGA65 FPGA core
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VIC-IV border registers show no effects on Nexys/MEGA65 - work fine with xmega65 emulator #581

Open snoopy-f64 opened 2 years ago

snoopy-f64 commented 2 years ago

Test Environment (required)

Describe the bug Writing to VIC-IV registers $d048/49 (TBDRPOS), $d04a/4b (BBDRPOS), $d05c/5d (SDBDRWD) (line 140 and 150 of attached prg) has no border (moving) effects using Nexys or MEGA65.

Works fine using emulator (xmega65).

To Reproduce bordertest.prg.zip

Screenshots mega65_border_test_a

mega65_border_test_b

lydon42 commented 1 year ago

I see no problem on RC1. Please recheck.

hernandp commented 1 year ago

This must be some kind of regression as I tested against hardware when I implemented the border registers, and they worked OK.

El mié, 15 jun 2022 a las 5:10, snoopy-f64 @.***>) escribió:

Test Environment (required)

  • Platform: Xemu vs. Nexys/MEGA65
  • Core Commit: 191
  • ROM Release: 920366

Describe the bug Writing to VIC-IV registers $d048/49 (TBDRPOS), $d04a/4b (BBDRPOS), $d05c/5d (SDBDRWD) (line 140 and 150 of attached prg) has no border (moving) effects using Nexys or MEGA65.

Works fine using emulator (xmega65).

To Reproduce bordertest.prg.zip https://github.com/MEGA65/mega65-core/files/8907151/bordertest.prg.zip

Screenshots [image: mega65_border_test_a] https://user-images.githubusercontent.com/66867430/173775611-676de1c5-d1e3-4033-a9f5-45c8bc05ac0c.png

[image: mega65_border_test_b] https://user-images.githubusercontent.com/66867430/173776582-fefeac94-4b47-409c-8363-0093f4aaf3be.png

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