060sp/dist/fpsp.s

46 # to call a given routine. The stub routine actually performs the
47 # callout. The FPSP code does a "bsr" to the stub routine. This
720 # maybe we can make these entry points ONLY the OVFL entry points of each routine.
721 	mov.l		(tbl_unsupp.l,%pc,%d1.w*4),%d1 # fetch routine addr
963 # maybe we can make these entry points ONLY the OVFL entry points of each routine.
964 	mov.l		(tbl_unsupp.l,%pc,%d1.w*4),%d1 # fetch routine addr
1157 # choosing an emulation routine from a table of routines indexed by	#
1166 # handler loads the packed op (by calling get_packed() routine) and	#
1172 # performed by calling the routine fout(). If no exception should occur	#
1315 	mov.l		(tbl_unsupp.l,%pc,%d1.l*4),%d1 # fetch routine addr
1331 # emulation routine that has also been enabled by the user.
1546 	bsr.l		fout			# call fmove out routine
1559 # emulation routine that has also been enabled by the user.
1860 	mov.l		(tbl_unsupp.l,%pc,%d1.l*4),%d1 # fetch routine addr
1876 # emulation routine that has also been enabled by the user.
2103 	bsr.l		fout			# call fmove out routine
2116 # emulation routine that has also been enabled by the user.
2430 #	For "fmovm.x", call the routine fmovm_dynamic() which will 	#
2612 	mov.l		(tbl_unsupp.l,%pc,%d1.w*4),%d1 # fetch routine addr
2628 # emulation routine that has also been enabled by the user.
3692 	mov.l		(tbl_unsupp.l,%pc,%d1.w*4),%d1 # fetch routine addr
3972 #	For the first set, this handler calls the routine load_fop()	#
3974 # for instruction emulation. The correct emulation routine is then 	#
9617 # the src value. then, jump to the norm part of the routine.
10236 # 	- This routine is for cases where even an EXOP isn't	#
10271 # 	- This routine is for cases where even an EXOP isn't	#
10352 # 	  routine may have caused an underflow or overflow. 	#
10568 #	      jump to operand error routine for a negative src operand.	#
10667 #	      register and jump to the operand error routine for negative
10678 # 		 register and branch to the src QNAN routine.
10688 #		 in the cosine register and branch to the src SNAN routine.
11786 # the unf_res() routine figure out all the rest.
13280 # to a very small NORM and ship it to the NORM routine.
13382 # to a very small NORM and ship it to the NORM routine.
13744 # 	fcmp(): fp compare op routine					#
13864 # and use the fcmp_norm routine.
13866 # and use the fcmp_norm routine.
15004 # the DENORM or NORM and jump to the regular fadd routine.
15456 # scale the DENORM or NORM and jump to the regular fsub routine.
16257 # fdbcc(): routine to emulate the fdbcc instruction			#
16273 #	This routine checks which conditional predicate is specified by	#
16274 # the stacked fdbcc instruction opcode and then branches to a routine	#
16299 	jmp		(tbl_fdbcc.b,%pc,%d1.w) # jump to fdbcc routine
16696 # routine. 								#
16878 # the emulation routine set bsun and BSUN was enabled. have to
16880 # let the caller of this routine shift the stack frame up to
16887 # ftrapcc(): routine to emulate the ftrapcc instruction			#
16902 #	This routine checks which conditional predicate is specified by	#
16903 # the stacked ftrapcc instruction opcode and then branches to a routine	#
16912 # flags indicate to the calling routine to emulate the exceptional	#
16927 	jmp		(tbl_ftrapcc.b,%pc,%d1.w) # jump to ftrapcc routine
17447 # the emulation routine set bsun and BSUN was enabled. have to
17449 # let the caller of this routine shift the stack frame up to
17456 # fscc(): routine to emulate the fscc instruction			#
17474 #	This routine checks which conditional predicate is specified by	#
17475 # the stacked fscc instruction opcode and then branches to a routine	#
17497 	jmp		(tbl_fscc.b,%pc,%d1.w) 	# jump to fscc routine
18143 # the emulation routine set bsun and BSUN was enabled. have to
18145 # let the caller of this routine shift the stack frame up to
18187 # have our own fcalc_ea() routine here. If an access error is flagged	#
18201 # so that the move can occur outside of this routine. This special	#
18275 # we're also passing "size" and "strg" back to the calling routine
19605 # a failing value, exit through the special facc_in() routine which	#
20185 #	This routine is accessed by many handlers that need to do an	#
20212 	jmp		(tbl_fout.b,%pc,%a1)	# jump to routine
20500 # so, denorm and round and then use generic store single routine to
20729 # so, denorm and round and then use generic store double routine to
21081 # this routine leaves d1 intact for subsequent store_dreg calls.
21353 # this routine adds the increment value in d0 to the address register	#
21417 # this routine adds the decrement value in d0 to the address register	#
21725 # we have to call the denormalization routine.
22225 #	 routine is tightly tied to the round routine and not meant to
22676 # 	unf_res(): routine to produce default underflow result of a 	#
22833 #	ovf_res(): routine to produce the default overflow result of	#
23014 #	and NaN operands are dispatched without entering this routine)	#
23200 #  this routine calculates the amount needed to normalize the mantissa
23224 #   of 27 or less are exact, there is no need to use this routine to
23242 # routine is necessary.  If so, then check the sign of the exponent
23544 #		mode.  The FPSP routine sintd0 is used.  The output	#
23555 #		The binstr routine is used to convert the LEN digit 	#
24033 #      routine expects the FPCR value to be in USER_FPCR for
24043 #      The FPSP routine sintd0 is used.  The output is in fp0.
24078 #	bsr	sintdo		# sint routine returns int in fp0
24212 #      The binstr routine is used to convert the LEN digit