Re:Introduction to Nintendo DS Programming
by ConfuSomu on Thursday April 09, 2026 @05:43PM
(#47710558)
Indeed, and for more clarification, as Arm's naming scheme easily causes confusion :
ARMv7 and ARMv4, used by the ARM7TDMI processor core in the GBA, NDS and 3DS, are not the same instruction sets. You can indeed find processor cores in recent microcontrollers/SoCs implementing Armv7 or Armv7-M.
The SAM9x60 has an ARM926 core, which implements the Armv5TEJ instruction set, similar to the DS' ARMv5TE instruction set implemented by its ARM946 core. The former has Jazelle while the latter doesn't.
ARMv7 and ARMv4, used by the ARM7TDMI processor core in the GBA, NDS and 3DS, are not the same instruction sets. You can indeed find processor cores in recent microcontrollers/SoCs implementing Armv7 or Armv7-M.
The SAM9x60 has an ARM926 core, which implements the Armv5TEJ instruction set, similar to the DS' ARMv5TE instruction set implemented by its ARM946 core. The former has Jazelle while the latter doesn't.
See https://en.wikipedia.org/wiki/ARM7#ARM7TDMI and https://onlinedocs.microchip.com/oxy/GUID-B822915F-C375-4172...