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Annotation of uae/config.h, revision 1.1.1.6

1.1       root        1:  /* 
                      2:   * UAE - The Un*x Amiga Emulator
                      3:   * 
                      4:   * User configuration options
                      5:   *
1.1.1.5   root        6:   * Copyright 1995 - 1998 Bernd Schmidt
1.1       root        7:   */
                      8: 
                      9: /*
1.1.1.2   root       10:  * Please note: Many things are configurable with command line parameters,
                     11:  * and you can put anything you can pass on the command line into a 
                     12:  * configuration file ~/.uaerc. Please read the documentation for more
                     13:  * information.
1.1.1.4   root       14:  * 
                     15:  * NOTE NOTE NOTE
                     16:  * Whenever you change something in this file, you have to "make clean"
                     17:  * afterwards.
                     18:  * Don't remove the '#' signs. If you want to enable something, move it out
                     19:  * of the C comment block, if you want to disable something, move it inside
                     20:  * the block.
1.1       root       21:  */
                     22: 
                     23: /*
1.1.1.2   root       24:  * When these two are enabled, a subset of the ECS features is emulated.
                     25:  * Actually, it's only the chip identification and big blits. This may be
                     26:  * enough to persuade some ECS programs to run.
                     27:  * DON'T enable SuperHires or Productivity modes. They are not emulated,
                     28:  * and will look very messy. NTSC doesn't work either.
1.1.1.5   root       29:  * OS versions 2.0+ don't like ECS_DENISE at the moment.
1.1.1.3   root       30:  */
1.1.1.6 ! root       31: #define ECS_DENISE
1.1.1.5   root       32: #define ECS_AGNUS
1.1.1.3   root       33: 
                     34: /*
                     35:  * When USE_COMPILER is defined, a m68k->i386 instruction compiler will be
                     36:  * used. This is experimental. It has only been tested on a Linux/i386 ELF
                     37:  * machine, although it might work on other i386 Unices.
                     38:  * This is supposed to speed up application programs. It will not work very
                     39:  * well for hardware bangers like games and demos, in fact it will be much
                     40:  * slower. It can also be slower for some applications and/or benchmarks.
                     41:  * It needs a lot of tuning. Please let me know your results with this.
                     42:  * The second define, RELY_ON_LOADSEG_DETECTION, decides how the compiler 
                     43:  * tries to detect self-modifying code. If it is not set, the first bytes
                     44:  * of every compiled routine are used as checksum before executing the
                     45:  * routine. If it is set, the UAE filesystem will perform some checks to 
                     46:  * detect whether an executable is being loaded. This is less reliable
                     47:  * (it won't work if you don't use the harddisk emulation, so don't try to
                     48:  * use floppies or even the RAM disk), but much faster.
1.1.1.5   root       49:  *
                     50:  * @@@ NOTE: This option is unfortunately broken in this version. Don't
                     51:  * try to use it. @@@
                     52:  *
1.1.1.3   root       53: #define USE_COMPILER
                     54: #define RELY_ON_LOADSEG_DETECTION
                     55:  */
                     56: 
1.1.1.4   root       57: /*
                     58:  * Set USER_PROGRAMS_BEHAVE to 1 or 2 to indicate that you are only running
                     59:  * non-hardware banging programs which leave all the dirty work to the
1.1.1.5   root       60:  * Kickstart. This affects the compiler. Any program that is _not_ in the ROM
1.1.1.4   root       61:  * (i.e. everything but the Kickstart) will use faster memory access 
                     62:  * functions.
                     63:  * There is of course the problem that the Amiga doesn't really distinguish
                     64:  * between user programs and the kernel. Not all of the OS is in the ROM,
                     65:  * e.g. the parallel.device is on the disk and gets loaded into RAM at least
                     66:  * with Kickstart 1.3 (don't know about newer Kickstarts). So you probably
                     67:  * can't print, and some other stuff may also fail to work.
                     68:  * A useless option, really, given the way lots of Amiga software is written.
                     69: #define USER_PROGRAMS_BEHAVE 0
                     70:  */
                     71: 
1.1.1.2   root       72: /***************************************************************************
1.1.1.5   root       73:  * Operating system/machine specific options
                     74:  * Configure these for your CPU. The default settings should work on any
                     75:  * machine, but may not give optimal performance everywhere.
                     76:  * (These don't do very much yet, except HAVE_RDTSC
1.1       root       77:  */
                     78: 
                     79: /*
1.1.1.5   root       80:  * Define this on PPro's, K6's and maybe other non-x86 CPUs.
                     81: #define MULTIPLICATION_PROFITABLE
1.1       root       82:  */
                     83: 
                     84: /*
1.1.1.5   root       85:  * PPros don't like branches. With this option, UAE tries to avoid them in some
                     86:  * places.
                     87: #define BRANCHES_ARE_EXPENSIVE
1.1.1.4   root       88:  */

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