Arm Thumb has a reduced instruction set compared to ARM, and one of the things that has suffered is the addressing modes. We have more limited options, and the barrel shifter is no longer available as part of addressing - we now have stand alone rotation commands... lets check them out! As always, this Video lesson matches the text lesson on my website, and you can get the source code as well... https://www.chibialiens.com/arm/thumb.php#Lesson2 My 2nd book is out now, and available on Amazon stores worldwide! The new book covers ARM Thumb, 65816, 6809, PDP-11 and Risc-V CPUs https://amzn.to/3JniJQt My 1st book is still available, and covers ASM programming on Z80, 6502, 68000, 8086 and ARM https://amzn.to/36wqp4g If you like my content, and want to see more in the future, please support me on patreon: https://www.patreon.com/akuyou Or become a member on my youtube channel: https://www.youtube.com/channel/UC8t99gp5IN-FTf5rGVaRevw/join You can also support my content by buying branded merchandise from my Teespring store: https://teespring.com/stores/chibiakumas My Assembly tutorials cover a wide range of CPU's and Systems, see them all here: http://www.assemblytutorial.com/

The PET is the predecessor of the VIC-20, it's only capable of 'text graphics' and cannot allow custom characters. Lets learn how to make the PET to say 'Hello' I've written a book! It covers ASM programming on Z80, 6502, 68000, 8086 and ARM! It's available on amazon stores worldwide! https://www.amazon.com/gp/product/B08W7DWZB3/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B08W7DWZB3&linkCode=as2&tag=chibiakumas-20&linkId=d52cf677a0300b2fa9bd9d1f1da68f2e As always, this Video lesson matches the text lesson on my website, and you can get the source code as well... http://www.chibiakumas.com/6502/helloworld.php#LessonH10 If you like my content, and want to see more in the future, please support me on patreon: https://www.patreon.com/akuyou Or become a member on my youtube channel: https://www.youtube.com/channel/UC8t99gp5IN-FTf5rGVaRevw/join You can also support my content by buying branded merchandise from my Teespring store: https://teespring.com/stores/chibiakumas My Assembly tutorials cover a wide range of CPU's and Systems, see them all here: http://www.assemblytutorial.com/

We can show text to the screen with the console functions from the main cpu, but this time we'll use a 'bitmap font' and draw the pixel data to the screen ourself. We'll use the layout in Lesson P4, where two bitplanes are available from the Main CPU, and the remaining one bitplane is available from the Peripheral CPU. As always, this Video lesson matches the text lesson on my website, and you can get the source code as well... https://www.chibiakumas.com/pdp11/platform.php#LessonP5 I've written a book! It covers ASM programming on Z80, 6502, 68000, 8086 and ARM! It's available on amazon stores worldwide! https://www.amazon.com/dp/B08W7DWZB3 If you like my content, and want to see more in the future, please support me on patreon: https://www.patreon.com/akuyou Or become a member on my youtube channel: https://www.youtube.com/channel/UC8t99gp5IN-FTf5rGVaRevw/join You can also support my content by buying branded merchandise from my Teespring store: https://teespring.com/stores/chibiakumas My Assembly tutorials cover a wide range of CPU's and Systems, see them all here: http://www.assemblytutorial.com/

In this lesson we'll take a look at the Commander x16 - a upcoming C64 like 65c02 machine, which has been upgraded with 256 colors layers, hardware sprites and more... Lets take a peek! As always, this Video lesson matches the text lesson on my website, and you can get the source code as well... http://www.chibiakumas.com/6502/commanderx16.php I've written a book! It covers ASM programming on Z80, 6502, 68000, 8086 and ARM! It's available on amazon stores worldwide! https://www.amazon.com/dp/B08W7DWZB3 If would like to support my channel and ongoing 8-bit game development, please consider backing me on patreon: https://www.patreon.com/akuyou