CVS commit: src/sys/arch/m68k/fpe

["Tetsuya Isaki" <isaki%netbsd.org@localhost>]

Module Name:    src
Committed By:   isaki
Date:           Sat Dec 28 05:56:15 UTC 2024

Modified Files:
        src/sys/arch/m68k/fpe: fpu_emulate.c

Log Message:
m68k/fpe: Fix several FMOVEM FPctl emulation.
- Fix the write order of FMOVEM FPctl,-(An).
  For example, "FMOVEM FPCR/FPSR,-(An)" instruction first decrements An by
  the total size (4*2 bytes), then writes FPCR and FPSR in this order.
  Therefore, it's differs from "FMOVEM FPCR,-(An); FMOVEM FPSR,-(An)" sequence.
- Support multiple immediate case like "FMOVEM #imm/#imm,FPCR/FPIAR".
- Mask writes to FPSR and FPCR registers correctly.
- Support reglist=0 case too.  It's not common case but makes code easier.


To generate a diff of this commit:
cvs rdiff -u -r1.42 -r1.43 src/sys/arch/m68k/fpe/fpu_emulate.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.