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82 # Here's the table of ENTRY POINTS for those linking the package.
674 # since, I believe, only NORMs and DENORMs can come through here,
1006 # underflow exception. Since this is incorrect, we check here to see
1150 # Two main instruction types can enter here: (1) DENORM or UNNORM #
1175 # (a Trace stack frame must be created here, too). If an FP exception #
1230 # exception, then the a7' calculated here is wrong since it doesn't
1327 # INEX1 : none (packed doesn't go through here)
1404 # here, we insert the correct fsave status value into the fsave frame for the
1461 # here, we count on norm not to alter a0...
1493 # here, we count on norm not to alter a0...
1525 # call here. just figure out what it is...
1556 # INEX1 : none (packed doesn't travel through here)
1570 # it here. if it was used from supervisor mode, then we have to handle this
1598 # here, we're counting on the top of the stack to be the old place-holders
1681 short tbl_fu_out - tbl_fu_out # INEX1 won't make it here
1795 # fmove in and out enter here.
1982 # here, we insert the correct fsave status value into the fsave frame for the
2465 # exception. Therefore, the FPU could be disabled when entering here.
2493 # here, we will have:
2776 # do it here.
2954 # F Emulator" exception. So, here we create an 8-word stack frame
3006 # here, we actually create the 8-word frame from the 4-word frame,
3140 # here, we simply see if the operand in the fsave frame needs to be "unskewed".
3143 # cause an operr so we don't need to check for them here.
3161 # operand error exceptions. we do this here before passing control to
3165 # through here. we simply need to test the sign of the src
3170 # exceptions, they won't pass through here since they are caught
3208 short foperr_exit - tbl_operr # packed won't enter here
3212 short tbl_operr - tbl_operr # packed won't enter here
3336 # here, we simply see if the operand in the fsave frame needs to be "unskewed".
3339 # fixed here.
3357 # snan exceptions. we do this here before passing control to
3361 # through here. since packed format operations already were handled by
3362 # fpsp_unsupp(), then we need to do nothing else for them here.
3630 # w/ an exponent value of 0x401e. we convert this to extended precision here.
3644 # Here, we zero the ccode and exception byte field since we're going to
3647 # to extended before arriving here. Therefore, we need to retain the
3722 # inexact exceptions. we do this here before passing control to
3726 # through here. so can double and single precision.
3728 # exceptions, they won't pass through here since they are caught
3799 # here, we simply see if the operand in the fsave frame needs to be "unskewed".
3969 # There are two main cases of instructions that may enter here to #
4305 # the ftrapcc instruction should take a trap. so, here we must create a
4347 # I am assuming here that an "fs<cc>.b -(An)" or "fs<cc>.b (An)+" instruction
4435 # as usual, we have to check for trace mode being on here. since instructions
4436 # modifying the supervisor stack frame don't pass through here, this is a
4463 # the fscc instruction should take a trace trap. so, here we must create a
4984 # fdbcc emulation failed. here, we create an access error frame
5318 # here, the operation may underflow iff the precision is sgl or dbl.
6355 #--ENTRY POINT FOR ATAN(X), HERE X IS FINITE, NON-ZERO, AND NOT NAN'S
6435 #--WHAT WE HAVE HERE IS MERELY A1 = A3, A2 = A1/A3, A3 = A2/A3.
6647 # This catch is added here for the '060 QSP. Originally, the call to
7217 #--entry point for EXP(X), here X is finite, non-zero, and not NaN's
7380 #--entry point for EXPM1(X), here X is finite, non-zero, non-NaN
7606 #--entry point for EXPM1(X), here X is denormalized
7658 # here, we build the result in a tmp location so as not to disturb the input
8437 # if these 2 lines weren't here, the correct answer would be returned
8600 #--HERE WE USE THE USUAL TABLE DRIVEN APPROACH. CARE HAS TO BE
9099 #--ENTRY POINT FOR 2**(X), HERE X IS FINITE, NON-ZERO, AND NOT NAN'S
9196 #--ENTRY POINT FOR 10**(X), HERE X IS FINITE, NON-ZERO, AND NOT NAN'S
10171 # - we only return the EXOP here if either underflow or #
11001 # has been decoded. Flow continues here where we now decode
11364 # The only exceptions capable of passing through here
11381 # FP_DST here...
11385 # frem,fmod, and fscale would get the dst trashed here. But, for
12056 # Unnorms don't pass through here. #
13228 # here. For norms, load the rounding mode/prec, execute a "fint", then #
13334 # here. For norms, load the rounding mode/prec, execute a "fintrz", #
13453 # Unnorms don't pass through here. #
13851 # 'N' bit for a negative QNAN or SNAN input so we must squelch it here.
15665 # we're on the line here and the distinguising characteristic is whether
18187 # have our own fcalc_ea() routine here. If an access error is flagged #
18263 # here, we convert it to be just like the others...
18988 # _imem_read_word() increased the extwptr by 2. need to adjust here.
19077 # we clear the value here if it should actually be suppressed.
19395 # need to set immediate data flag here since we'll need to do
19402 # here, the <ea> is stacked correctly. however, we must update the
19414 # mode so we don't even worry about this tricky case here : )
20229 # Only "Unimplemented Data Type" exceptions enter here. The operand
20275 # Only "Unimplemented Data Type" exceptions enter here. The operand
20321 # Only "Unimplemented Data Type" exceptions enter here. The operand
20368 # Only "Unimplemented Data Type" exceptions enter here. The operand
20499 # here, we know that the operand would UNFL if moved out to single prec,
20728 # here, we know that the operand would UNFL if moved out to double prec,
21630 # careful that we don't take an exception here. #
21883 # subtle step here; or in the g,r,s at the bottom of FTEMP_LO to minimize
22960 # its binary representation here. Else, call decbin() which will #
23779 bra.b A7_str # finished here
24615 # Flow jumps here when an FP data fetch call gets an error #
24695 # here's where we actually create the access error frame from the
24726 # we do that here.
Indexes created Mon Oct 13 15:10:03 GMT 2025