Subzero, MIPS32: Handling fptrunc and fpext casting

Patch implements truncation and extension of FP values.

R=stichnot@chromium.org

Review URL: https://codereview.chromium.org/2324903002 .

Patch from Srdjan Obucina <Srdjan.Obucina@imgtec.com>.
2 files changed