m68k/fpsp040/res_func.S

630 |	if(sign_of(dest) != sign_of(src))
632 |		use fpu to perform dest+new_src (user's rmode and X)
640 |	if(sign_of(dest) == sign_of(src))
642 |		use fpu to perform dest+new_src (user's rmode and X)
652 |	if(dest is norm)
654 |	else(dest is denorm)
658 |	if(dest is norm)
659 |		N = sign_of(dest);
660 |	else(dest is denorm)
700 	cmpb	#0x0f,DNRM_FLG(%a6) |check for dest denorm
706 	bfexts	FPTEMP_EX(%a6){#1:#15},%d1	|get dest exp (always neg)
707 	subl	%d1,%d0			|subtract dest from src
744 	bfextu	FPTEMP_EX(%a6){#1:#15},%d0	|get dest exp (always pos)
746 	subl	%d1,%d0			|subtract src from dest
804 	cmpb	#0x0f,DNRM_FLG(%a6) |check for dest denorm
810 	bfexts	FPTEMP_EX(%a6){#1:#15},%d1	|get dest exp (always neg)
811 	subl	%d1,%d0			|subtract dest from src
818 	bfextu	FPTEMP_EX(%a6){#1:#15},%d0	|get dest exp (always pos)
820 	subl	%d1,%d0			|subtract src from dest
842 	cmpb	#0x0f,DNRM_FLG(%a6) |is dest the denorm?
903 	cmpb	#0x0f,DNRM_FLG(%a6) |is dest the denorm?
979 	cmpb	#0x0f,DNRM_FLG(%a6) |check for dest denorm
985 	bfexts	FPTEMP_EX(%a6){#1:#15},%d1	|get dest exp (always neg)
986 	subl	%d1,%d0			|subtract src from dest
993 	bfextu	FPTEMP_EX(%a6){#1:#15},%d0	|get dest exp (always pos)
995 	subl	%d1,%d0			|subtract dest from src
1017 	cmpb	#0x0f,DNRM_FLG(%a6) |is dest the denorm?
1078 	cmpb	#0x0f,DNRM_FLG(%a6) |is dest the denorm?
1092 | Since the dest is the denorm, the sign is the opposite of the
1160 	cmpb	#0x0f,DNRM_FLG(%a6) |check for dest denorm
1166 	bfexts	FPTEMP_EX(%a6){#1:#15},%d1	|get dest exp (always neg)
1167 	subl	%d1,%d0			|subtract dest from src
1176 	bfextu	FPTEMP_EX(%a6){#1:#15},%d0	|get dest exp (always pos)
1178 	subl	%d1,%d0			|subtract src from dest
1181 	tstw	FPTEMP_EX(%a6)		|set N to sign_of(dest)
1198 	cmpb	#0x0f,DNRM_FLG(%a6) |check for dest denorm
1204 	bfexts	FPTEMP_EX(%a6){#1:#15},%d1	|get dest exp (always neg)
1205 	addl	%d1,%d0			|subtract dest from src
1211 	bfextu	FPTEMP_EX(%a6){#1:#15},%d0	|get dest exp (always pos)
1213 	addl	%d1,%d0			|subtract src from dest
1338 	beqs	fmoveinc		|the dest
1379 	bles	fp0123			|check if dest is fp0-fp3