TUTORIALS: ARM PROCESSOR VERSIONS

ARM Architecture has undergone a number of changes while moving from one version to another version.


ARM VERSION 1 (1983-1985)

• First ARM processor version to be commercialized.
• It had 26 Bit Addressing capabilities.
• No support for multiplication. No additional Co-Processor support

ARM VERSION 2

• Included 32 bit result multiply Co-Processor

ARM VERSION 3

• Enhanced to 32 bit Addressing capabilities

ARM VERSION 4

• Added Signed, Unsigned half-word and signed byte load and store instructions

ARM VERSION 4T

• 16-bit Thumb compressed form of instruction sub-set introduced. Hence increase in code density as same amount of memory can now be used to store more instructions

ARM VERSION 5T

• Superset of 4T. Added additional ARM/Thumb instructions

ARM VERSION 5TE

• Added Signal Processing signal extensions/instructions.

Examples

ARM 6: v3
ARM 7: v4
ARM 7TDMI: v4T
ARM 9E-S: v5TE