8-Bit Show And Tell | Commodore 64 Quirks, Bugs, and Easter Egg(s) @8_Bit | Uploaded April 2019 | Updated October 2024, 10 hours ago.
A quick video showing some of my favourite C64 quirks: BASIC interpreter crashes, an easter egg (or two), floating point variable oddities, and more.
Index:
0:00 Intro / Midwest Gaming Classic
1:44 REM Shift-L bug
2:38 ?””+-0 crash
3:46 ?0+””+-0 hard crash
4:31 Hit Stop+Restore keys, then: POKE 781,96 : SYS58251 “screen saver”
5:40 M FFF6 Robert Russell / Bob Yannes
7:11 350720 crash
8:36 A=A+0.01 float rounding error
11:07 9^X exponent float rounding error - ERRATA: I (and the C64) made a mistake here, by 9^9 the rounding error has increased to a whole number, so the number displayed is one greater than it should be!
Links
Midwest Gaming Classic: midwestgamingclassic.com
Commodore 64 BASIC: All 32 Errors: youtu.be/9V1wFXKHTgw
Follow me on Twitter: twitter.com/BedfordLvlExp
Check out my podcast Growing Up '80s: https://thecouch.website/category/gu80s/
A quick video showing some of my favourite C64 quirks: BASIC interpreter crashes, an easter egg (or two), floating point variable oddities, and more.
Index:
0:00 Intro / Midwest Gaming Classic
1:44 REM Shift-L bug
2:38 ?””+-0 crash
3:46 ?0+””+-0 hard crash
4:31 Hit Stop+Restore keys, then: POKE 781,96 : SYS58251 “screen saver”
5:40 M FFF6 Robert Russell / Bob Yannes
7:11 350720 crash
8:36 A=A+0.01 float rounding error
11:07 9^X exponent float rounding error - ERRATA: I (and the C64) made a mistake here, by 9^9 the rounding error has increased to a whole number, so the number displayed is one greater than it should be!
Links
Midwest Gaming Classic: midwestgamingclassic.com
Commodore 64 BASIC: All 32 Errors: youtu.be/9V1wFXKHTgw
Follow me on Twitter: twitter.com/BedfordLvlExp
Check out my podcast Growing Up '80s: https://thecouch.website/category/gu80s/
![4-Byte Commodore 64 Demo and Follow-up on 10 PRINT Orthogonal [32 bytes]](https://i.ytimg.com/vi/aMaMzsL9vVQ/hqdefault.jpg "4-Byte Commodore 64 Demo and Follow-up on 10 PRINT Orthogonal [32 bytes]
A tiny 4-byte (6 bytes including the load address) Commodore 64 demo called NONMONOCHROME was released by Nom de Nom. We run it, and take a look at how it works. Then we take another look at 10 PRINT Orthogonal by Logiker, and figure out exactly why it doesnt work on my 64C but it does work on many breadbin models of C64.
To support 8-Bit Show And Tell:
Become a patron: https://patreon.com/8BitShowAndTell
One-time donation: https://paypal.me/8BitShowAndTell
2nd channel: https://youtube.com/channel/UCAgWzEh5c8391eJnELDy9OA
NONMONOCHROME: https://files.scene.org/view/parties/2021/lovebyte21/misc/8_byte_intro_showcase/nonmonochrome.zip
Nom de Nom: https://demozoo.org/sceners/43383/
10 PRINT (the book): https://10print.org/
Previous episode about 10 PRINT Orthogonal: https://youtu.be/oPtjcSsS2MI
Index:
0:00 Intro, Running NONMONOCHROME
2:59 How it works
7:32 Why 10 PRINT Orthogonal Hangs While Loading on my 64C
10:14 What the BASIC re-linker does
16:11 Why It works on my silver label breadbin C64
20:14 Thanks!")
