Thoughts on the FPA Functional Interface

This interoffice memorandum from Mike Uhler, dated April 20, 1983, details preliminary thoughts on functional interfaces for the FPA (Floating Point Accelerator). The document explores key design considerations including operand prefetch, the implementation of unbiased rounding, managing instructions through XCT, architectural use of G floating-point, EXTEND G-float conversions, EBOX-FPA synchronization options, calling the FPA as a subroutine, and storing results and flags. Additionally, it contains an appendix with OPHIST data across various sites.