.ttl "fpadd.s" * MC68020/MC68881 IEEE Format Single Precision Routines * * Written by: Edmund H. Ramm * * fpadd entry point for single prec. addition, operands in 4(sp) and 8(sp) * * sp 4 8 * ---------------------- * | ret | a | b | .text .globl fpadd,_fpadd fpadd: _fpadd: ~~fpadd: * * on exit, d0 = 4(sp) + 8(sp) * * fmove.s 4(sp),fp0 * fp0 <-- "a" dc.w $f22f,$4400,$0004 * fadd.s 8(sp),fp0 * fp0 <-- "a" + "b" dc.w $f22f,$4422,$0008 * fmove.s fp0,d0 * d0 <-- sum dc.w $f200,$6400 rts .end