 | | Re: NQC v. LegOS / size —dave madden
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| | | =>From: "John A. Tamplin" <jat@Traveller.COM> =>... =>On Tue, 9 Feb 1999, dave madden wrote: => =>> Yes, the H8 divide instruction can only do (16 bits)/(8 bits), so GCC =>> calls a helper routine [...] => =>Are you linking libgcc.a? I believe it (...) (26 years ago, 9-Feb-99, to lugnet.robotics)
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| | | | | Re: NQC v. LegOS / size —John A. Tamplin
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| | | | (...) In most cross-compilers, there is assembly code for those helper functions. In EGCS, those are in config/h8300/lib1funcs.asm. (...) It calls __divhi3, which is defined in config/h8300/lib1funcs.asm. I built egcs-1.1.1 without any changes (that (...) (26 years ago, 9-Feb-99, to lugnet.robotics)
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| | | | | | Re: NQC v. LegOS / size —Kekoa Proudfoot
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| | | | | (...) There are two problems with lib1funcs.asm. First, all the functions are in one .asm file. That means you have the code for all math functions even if you use only one of them. Second, most of the routines are already in ROM, so if you can take (...) (26 years ago, 9-Feb-99, to lugnet.robotics)
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| | | | | | Re: NQC v. LegOS / size —dave madden
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| | | | | =>From: "John A. Tamplin" <jat@Traveller.COM> =>... =>It calls __divhi3, which is defined in config/h8300/lib1funcs.asm. I =>built egcs-1.1.1 without any changes (that I remember :), and it put =>those in libgcc1.a, which then gets merged into (...) (26 years ago, 10-Feb-99, to lugnet.robotics)
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| | | | | | Re: NQC v. LegOS / size —Markus L. Noga
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| | | | Hi John, (...) I'm currently working on compiler details with Chris. He sent me some patches to produce cleaner code for ROM calls (register allocation issues), and after we have consolidated these, there'll be both patches and binary releases for (...) (26 years ago, 10-Feb-99, to lugnet.robotics)
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| | | | | | Re: NQC v. LegOS / size —John A. Tamplin
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| | | | (...) I had started to do that, but then I decided that was way too much work for what I have time for, with little benefit. I assume you are changing the target name to something like h8300-hitachi-rcx and setting it up properly for configure? If (...) (26 years ago, 10-Feb-99, to lugnet.robotics)
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| | | | | | Re: NQC v. LegOS / size —Markus L. Noga
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| | | | (...) This mainly involves small, but crucial changes to h8300.h. Register constraints, preserved and clobbered registers and allocation issues are all taken care of in that file. I didn't think about submitting this, but it should be easily (...) (26 years ago, 11-Feb-99, to lugnet.robotics)
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