3.17.33. PDP-11 Options
3.17.33 PDP-11 Options
These options are defined for the PDP-11:
-mfpu
- Use hardware FPP floating point. This is the default. (FIS floating point on the PDP-11/40 is not supported.)
-msoft-float
- Do not use hardware floating point.
-mac0
- Return floating-point results in ac0 (fr0 in Unix assembler syntax).
-mno-ac0
- Return floating-point results in memory. This is the default.
-m40
- Generate code for a PDP-11/40.
-m45
- Generate code for a PDP-11/45. This is the default.
-m10
- Generate code for a PDP-11/10.
-mbcopy-builtin
-
Use inline
movmemhi
patterns for copying memory. This is the default. -mbcopy
-
Do not use inline
movmemh