Why is Apple Rosetta 2 fast? (2022)
(wordpress.com)
Rosetta 2 is remarkably fast when compared to other x86-on-ARM emulators.
Rosetta 2 is remarkably fast when compared to other x86-on-ARM emulators.
Solving the Mystery of ARM7TDMI Multiply Carry Flag
(bmchtech.github.io)
The Gameboy Advance has a pretty neat CPU - the ARM7TDMI. And by neat, I mean a chaotic and sadistic bundle of questionable design decisions.
The Gameboy Advance has a pretty neat CPU - the ARM7TDMI. And by neat, I mean a chaotic and sadistic bundle of questionable design decisions.
Solving the Mystery of ARM7TDMI Multiply Carry Flag
(bmchtech.github.io)
The Gameboy Advance has a pretty neat CPU - the ARM7TDMI. This CPU is quite complicated - it allows the program counter to be used a general purpose register, implying it can be used as the output to any data processing instruction. That’s like allowing a drunk driver to change their tires while going 30 over the speed limit near a school. It’s a unique feature that can lead to very funny instructions.
The Gameboy Advance has a pretty neat CPU - the ARM7TDMI. This CPU is quite complicated - it allows the program counter to be used a general purpose register, implying it can be used as the output to any data processing instruction. That’s like allowing a drunk driver to change their tires while going 30 over the speed limit near a school. It’s a unique feature that can lead to very funny instructions.
A Lisp compiler to ARM written in Lisp
(ulisp.com)
This is a simple experimental Lisp compiler, written in uLisp, that will compile a Lisp function into ARM machine code. My aim was to make the compiler simple enough so that its listing will fit on a single sheet of A4 paper.
This is a simple experimental Lisp compiler, written in uLisp, that will compile a Lisp function into ARM machine code. My aim was to make the compiler simple enough so that its listing will fit on a single sheet of A4 paper.
GNU C Library Tuning for AArch64 Helps Memset Performance by ~24%
(phoronix.com)
A patch merged yesterday to the GNU C Library (glibc) codebase can help the memset() function's performance by 24% as measured on an Arm Neoverse-N1 core.
A patch merged yesterday to the GNU C Library (glibc) codebase can help the memset() function's performance by 24% as measured on an Arm Neoverse-N1 core.