Usenet_area_"Cs.I.Pc"@watmath.waterloo.edu (01/09/88)
From Usenet: cornell!rochester!ritcv!mds7958 From: mds7958@ritcv.UUCP (Mark Sicignano) Newsgroups: comp.sys.ibm.pc Subject: Re: Missing option in Turbo C Message-ID: <87@ritcv.UUCP> Date: 9 Jan 88 14:16:31 GMT References: <5131@cit-vax.Caltech.Edu> Reply-To: mds7958@ritcv.UUCP (Mark Sicignano) Organization: Rochester Institute of Technology, Rochester, NY Lines: 14 In article <5131@cit-vax.Caltech.Edu> tim@cit-vax.UUCP (Timothy L. Kay) writes: >I just added a 80287 to my AT clone. The Turbo C programs seemed to >speed up, but I wanted to measure the exact amount that they sped up. >However, with Turbo C there seems no way to disable the use of the >80287 if one is installed. > >Tim Try reading page 280-282 of the TC users guide. It explains the use of the 87 environment variable. You can issue a SET 87=N or SET 87=Y to override automatic detection of the 8087. -mark --- via UGate v1.6 * Origin: watmath (221/163)
tim@cit-vax.Caltech.Edu (Timothy L. Kay) (01/09/88)
I just added a 80287 to my AT clone. The Turbo C programs seemed to speed up, but I wanted to measure the exact amount that they sped up. However, with Turbo C there seems no way to disable the use of the 80287 if one is installed. Tim
mds7958@ritcv.UUCP (Mark Sicignano) (01/09/88)
In article <5131@cit-vax.Caltech.Edu> tim@cit-vax.UUCP (Timothy L. Kay) writes: >I just added a 80287 to my AT clone. The Turbo C programs seemed to >speed up, but I wanted to measure the exact amount that they sped up. >However, with Turbo C there seems no way to disable the use of the >80287 if one is installed. > >Tim Try reading page 280-282 of the TC users guide. It explains the use of the 87 environment variable. You can issue a SET 87=N or SET 87=Y to override automatic detection of the 8087. -mark
tsl@netsys.UUCP (Tom Livingston) (01/10/88)
In article <5131@cit-vax.Caltech.Edu> tim@cit-vax.UUCP (Timothy L. Kay) writes: >I just added a 80287 to my AT clone. The Turbo C programs seemed to >speed up, but I wanted to measure the exact amount that they sped up. >However, with Turbo C there seems no way to disable the use of the >80287 if one is installed. > >Tim Just link at the command line, following the instructions in the appendix. You have a choice of either linking in the emu or fp87 libraries, emu giving you software floating point emulation, fp87 giving you '87 support, and nothing giving your no floating point support. _____________ / --/ __ _______ (_/ (_) / / / <_ Livingston { decuac,ihnp4 }!netsys!tsl