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A comment on Tales of the M1 GPU. Parent comment

Re:Tales of the M1 GPU by rasz on Wednesday November 30, 2022 @02:11AM (#33797845)
No, VIC-20/1540 had hardware problem. C64 shipped with fixed chips. C64 cant even work with 1540. Commodore crippled it because of incompetence.
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Re:Tales of the M1 GPU by ddingus on Wednesday November 30, 2022 @09:50AM (#33801497)
Too late for me to edit, but yes I did confuse the source of the bug. Please clarify the C64 drive scenario source of slowness. Was it VIC-20 backward compatibility, or?

In any case, I maintain the engineering wasn't at fault, having a CPU etc. Fastloaders showed it to be just poor software, and that's a point I did not make clear enough.

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Re:Tales of the M1 GPU by rasz on Thursday December 01, 2022 @12:34AM (#33812750)
Commodore wanted new C64 drives to be backward compatible with VIC-20 and vice versa. They failed the second goal, and C64 sold ~10x the number of units VIC-20 did making whole exercise pointless.

All to sell more outdated garbage chips made by MOS instead of using proper FDC controller on CPU bus with cheap standard floppy.

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Re:Tales of the M1 GPU by ddingus on Thursday December 01, 2022 @10:40AM (#33817705)
Got it. Ty :)
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