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The article explores unexpected behavior in Common Lisp's SBCL where array sub-typing works for integer types but fails for constrained types like (unsigned-byte 16), attributed to compiler optimizations and upgraded array element types.
Steel Bank Common Lisp (SBCL) version 2.6.7 is released with bug fixes and improvements.
A technical blog post exploring how to use SBCL as a breadboard for assembly code, focusing on stack-based virtual machine techniques such as rotating stacks and efficient primop dispatch, with references to the F18 processor and x87 stack.