diff options
Diffstat (limited to 'sim/ppc/std-config.h')
| -rw-r--r-- | sim/ppc/std-config.h | 660 |
1 files changed, 0 insertions, 660 deletions
diff --git a/sim/ppc/std-config.h b/sim/ppc/std-config.h deleted file mode 100644 index 1a3349c..0000000 --- a/sim/ppc/std-config.h +++ /dev/null @@ -1,660 +0,0 @@ -/* This file is part of the program psim. - - Copyright (C) 1994-1995, Andrew Cagney <cagney@highland.com.au> - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - - */ - - -#ifndef _PSIM_CONFIG_H_ -#define _PSIM_CONFIG_H_ - - -/* endianness of the host/target: - - If the build process is aware (at compile time) of the endianness - of the host/target it is able to eliminate slower generic endian - handling code. - - Possible values are 0 (unknown), LITTLE_ENDIAN, BIG_ENDIAN */ - -#ifndef WITH_HOST_BYTE_ORDER -#define WITH_HOST_BYTE_ORDER 0 /*unknown*/ -#endif - -#ifndef WITH_TARGET_BYTE_ORDER -#define WITH_TARGET_BYTE_ORDER 0 /*unknown*/ -#endif - -extern int current_host_byte_order; -#define CURRENT_HOST_BYTE_ORDER (WITH_HOST_BYTE_ORDER \ - ? WITH_HOST_BYTE_ORDER \ - : current_host_byte_order) -extern int current_target_byte_order; -#define CURRENT_TARGET_BYTE_ORDER (WITH_TARGET_BYTE_ORDER \ - ? WITH_TARGET_BYTE_ORDER \ - : current_target_byte_order) - - -/* PowerPC XOR endian. - - In addition to the above, the simulator can support the PowerPC's - horrible XOR endian mode. This feature makes it possible to - control the endian mode of a processor using the MSR. */ - -#ifndef WITH_XOR_ENDIAN -#define WITH_XOR_ENDIAN 8 -#endif - - -/* Intel host BSWAP support: - - Whether to use bswap on the 486 and pentiums rather than the 386 - sequence that uses xchgb/rorl/xchgb */ -#ifndef WITH_BSWAP -#define WITH_BSWAP 0 -#endif - - -/* SMP support: - - Sets a limit on the number of processors that can be simulated. If - WITH_SMP is set to zero (0), the simulator is restricted to - suporting only on processor (and as a consequence leaves the SMP - code out of the build process). - - The actual number of processors is taken from the device - /options/smp@<nr-cpu> */ - -#ifndef WITH_SMP -#define WITH_SMP 5 -#endif -#if WITH_SMP -#define MAX_NR_PROCESSORS WITH_SMP -#else -#define MAX_NR_PROCESSORS 1 -#endif - - -/* Word size of host/target: - - Set these according to your host and target requirements. At this - point in time, I've only compiled (not run) for a 64bit and never - built for a 64bit host. This will always remain a compile time - option */ - -#ifndef WITH_TARGET_WORD_BITSIZE -#define WITH_TARGET_WORD_BITSIZE 32 /* compiled only */ -#endif - -#ifndef WITH_HOST_WORD_BITSIZE -#define WITH_HOST_WORD_BITSIZE 32 /* 64bit ready? */ -#endif - - -/* Program environment: - - Three environments are available - UEA (user), VEA (virtual) and - OEA (perating). The former two are environment that users would - expect to see (VEA includes things like coherency and the time - base) while OEA is what an operating system expects to see. By - setting these to specific values, the build process is able to - eliminate non relevent environment code - - CURRENT_ENVIRONMENT specifies which of vea or oea is required for - the current runtime. */ - -#define USER_ENVIRONMENT 1 -#define VIRTUAL_ENVIRONMENT 2 -#define OPERATING_ENVIRONMENT 3 - -#ifndef WITH_ENVIRONMENT -#define WITH_ENVIRONMENT 0 -#endif - -extern int current_environment; -#define CURRENT_ENVIRONMENT (WITH_ENVIRONMENT \ - ? WITH_ENVIRONMENT \ - : current_environment) - - -/* Optional VEA/OEA code: - - The below, required for the OEA model may also be included in the - VEA model however, as far as I can tell only make things - slower... */ - - -/* Events. Devices modeling real H/W need to be able to efficiently - schedule things to do at known times in the future. The event - queue implements this. Unfortunatly this adds the need to check - for any events once each full instruction cycle. */ - -#define WITH_EVENTS (WITH_ENVIRONMENT != USER_ENVIRONMENT) - - -/* Time base: - - The PowerPC architecture includes the addition of both a time base - register and a decrement timer. Like events adds to the overhead - of of some instruction cycles. */ - -#ifndef WITH_TIME_BASE -#define WITH_TIME_BASE (WITH_ENVIRONMENT != USER_ENVIRONMENT) -#endif - - -/* Callback/Default Memory. - - Core includes a builtin memory type (raw_memory) that is - implemented using an array. raw_memory does not require any - additional functions etc. - - Callback memory is where the core calls a core device for the data - it requires. - - Default memory is an extenstion of this where for addresses that do - not map into either a callback or core memory range a default map - can be used. - - The OEA model uses callback memory for devices and default memory - for buses. - - The VEA model uses callback memory to capture `page faults'. - - While it may be possible to eliminate callback/default memory (and - hence also eliminate an additional test per memory fetch) it - probably is not worth the effort. - - BTW, while raw_memory could have been implemented as a callback, - profiling has shown that there is a biger win (at least for the - x86) in eliminating a function call for the most common - (raw_memory) case. */ - -#define WITH_CALLBACK_MEMORY 1 - - -/* Alignment: - - The PowerPC may or may not handle miss aligned transfers. An - implementation normally handles miss aligned transfers in big - endian mode but generates an exception in little endian mode. - - This model. Instead allows both little and big endian modes to - either take exceptions or handle miss aligned transfers. - - If 0 is specified then for big-endian mode miss alligned accesses - are permitted (NONSTRICT_ALIGNMENT) while in little-endian mode the - processor will fault on them (STRICT_ALIGNMENT). */ - -#define NONSTRICT_ALIGNMENT 1 -#define STRICT_ALIGNMENT 2 - -#ifndef WITH_ALIGNMENT -#define WITH_ALIGNMENT 0 -#endif - -extern int current_alignment; -#define CURRENT_ALIGNMENT (WITH_ALIGNMENT \ - ? WITH_ALIGNMENT \ - : current_alignment) - - -/* Floating point suport: - - Still under development. */ - -#define SOFT_FLOATING_POINT 1 -#define HARD_FLOATING_POINT 2 - -#ifndef WITH_FLOATING_POINT -#define WITH_FLOATING_POINT HARD_FLOATING_POINT -#endif -extern int current_floating_point; -#define CURRENT_FLOATING_POINT (WITH_FLOATING_POINT \ - ? WITH_FLOATING_POINT \ - : current_floating_point) - - -/* Debugging: - - Control the inclusion of debugging code. */ - -/* Include the tracing code. Disabling this eliminates all tracing - code */ - -#ifndef WITH_TRACE -#define WITH_TRACE 1 -#endif - -/* include code that checks assertions scattered through out the - program */ - -#ifndef WITH_ASSERT -#define WITH_ASSERT 1 -#endif - -/* Whether to check instructions for reserved bits being set */ - -#ifndef WITH_RESERVED_BITS -#define WITH_RESERVED_BITS 1 -#endif - -/* include monitoring code */ - -#define MONITOR_INSTRUCTION_ISSUE 1 -#define MONITOR_LOAD_STORE_UNIT 2 -#ifndef WITH_MON -#define WITH_MON (MONITOR_LOAD_STORE_UNIT \ - | MONITOR_INSTRUCTION_ISSUE) -#endif - -/* Current CPU model (models are in the generated models.h include file) */ -#ifndef WITH_MODEL -#define WITH_MODEL 0 -#endif - -#define CURRENT_MODEL (WITH_MODEL \ - ? WITH_MODEL \ - : current_model) - -#ifndef WITH_DEFAULT_MODEL -#define WITH_DEFAULT_MODEL DEFAULT_MODEL -#endif - -#define MODEL_ISSUE_IGNORE (-1) -#define MODEL_ISSUE_PROCESS 1 - -#ifndef WITH_MODEL_ISSUE -#define WITH_MODEL_ISSUE 0 -#endif - -extern int current_model_issue; -#define CURRENT_MODEL_ISSUE (WITH_MODEL_ISSUE \ - ? WITH_MODEL_ISSUE \ - : current_model_issue) - -/* Whether or not input/output just uses stdio, or uses printf_filtered for - output, and polling input for input. */ - -#define DONT_USE_STDIO 2 -#define DO_USE_STDIO 1 - -#ifndef WITH_STDIO -#define WITH_STDIO DO_USE_STDIO -#endif - -extern int current_stdio; -#define CURRENT_STDIO (WITH_STDIO \ - ? WITH_STDIO \ - : current_stdio) - - - -/* INLINE CODE SELECTION: - - GCC -O3 attempts to inline any function or procedure in scope. The - options below facilitate fine grained control over what is and what - isn't made inline. For instance it can control things down to a - specific modules static routines. Doing this allows the compiler - to both eliminate the overhead of function calls and (as a - consequence) also eliminate further dead code. - - On a CISC (x86) I've found that I can achieve an order of magintude - speed improvement (x3-x5). In the case of RISC (sparc) while the - performance gain isn't as great it is still significant. - - Each module is controled by the macro <module>_INLINE which can - have the values described below - - 0 Do not inline any thing for the given module - - The following additional values are `bit fields' and can be - combined. - - REVEAL_MODULE: - - Include the C file for the module into the file being compiled - but do not make the functions within the module inline. - - While of no apparent benefit, this makes it possible for the - included module, when compiled to inline its calls to what - would otherwize be external functions. - - INLINE_MODULE: - - Make external functions within the module `inline'. Thus if - the module is included into a file being compiled, calls to - its funtions can be eliminated. 2 implies 1. - - INLINE_LOCALS: - - Make internal (static) functions within the module `inline'. - - The following abreviations are available: - - INCLUDE_MODULE == (REVEAL_MODULE | INLINE_MODULE) - - ALL_INLINE == (REVEAL_MODULE | INLINE_MODULE | INLINE_LOCALS) - - In addition to this, modules have been put into two categories. - - Simple modules - eg sim-endian.h bits.h - - Because these modules are small and simple and do not have - any complex interpendencies they are configured, if - <module>_INLINE is so enabled, to inline themselves in all - modules that include those files. - - For the default build, this is a real win as all byte - conversion and bit manipulation functions are inlined. - - Complex modules - the rest - - These are all handled using the files inline.h and inline.c. - psim.c includes the above which in turn include any remaining - code. - - IMPLEMENTATION: - - The inline ability is enabled by prefixing every data / function - declaration and definition with one of the following: - - - INLINE_<module> - - Prefix to any global function that is a candidate for being - inline. - - values - `', `static', `static INLINE' - - - EXTERN_<module> - - Prefix to any global data structures for the module. Global - functions that are not to be inlined shall also be prefixed - with this. - - values - `', `static', `static' - - - STATIC_INLINE_<module> - - Prefix to any local (static) function that is a candidate for - being made inline. - - values - `static', `static INLINE' - - - static - - Prefix all local data structures. Local functions that are not - to be inlined shall also be prefixed with this. - - values - `static', `static' - - nb: will not work for modules that are being inlined for every - use (white lie). - - - extern - #ifndef _INLINE_C_ - #endif - - Prefix to any declaration of a global object (function or - variable) that should not be inlined and should have only one - definition. The #ifndef wrapper goes around the definition - propper to ensure that only one copy is generated. - - nb: this will not work when a module is being inlined for every - use. - - - STATIC_<module> - - Replaced by either `static' or `EXTERN_MODULE'. - - - REALITY CHECK: - - This is not for the faint hearted. I've seen GCC get up to 500mb - trying to compile what this can create. - - Some of the modules do not yet implement the WITH_INLINE_STATIC - option. Instead they use the macro STATIC_INLINE to control their - local function. - - Because of the way that GCC parses __attribute__(), the macro's - need to be adjacent to the functioin name rather then at the start - of the line vis: - - int STATIC_INLINE_MODULE f(void); - void INLINE_MODULE *g(void); - - */ - -#define REVEAL_MODULE 1 -#define INLINE_MODULE 2 -#define INCLUDE_MODULE (INLINE_MODULE | REVEAL_MODULE) -#define INLINE_LOCALS 4 -#define ALL_INLINE 7 - -/* Your compilers inline reserved word */ - -#ifndef INLINE -#if defined(__GNUC__) && defined(__OPTIMIZE__) -#define INLINE __inline__ -#else -#define INLINE /*inline*/ -#endif -#endif - - -/* Your compilers pass parameters in registers reserved word */ - -#ifndef WITH_REGPARM -#define WITH_REGPARM 0 -#endif - -#ifndef WITH_STDCALL -#define WITH_STDCALL 0 -#endif - -#if !defined REGPARM -#if (defined(i386) || defined(i486) || defined(i586) || defined(__i386__) || defined(__i486__) || defined(__i586__)) -#if (WITH_REGPARM && WITH_STDCALL) -#define REGPARM __attribute__((__regparm__(WITH_REGPARM),__stdcall__)) -#else -#if (WITH_REGPARM && !WITH_STDCALL) -#define REGPARM __attribute__((__regparm__(WITH_REGPARM))) -#else -#if (!WITH_REGPARM && WITH_STDCALL) -#define REGPARM __attribute__((__stdcall__)) -#else -#define REGPARM -#endif -#endif -#endif -#endif -#endif - - - -/* Default prefix for static functions */ - -#ifndef STATIC_INLINE -#define STATIC_INLINE static INLINE -#endif - -/* Default macro to simplify control several of key the inlines */ - -#ifndef DEFAULT_INLINE -#define DEFAULT_INLINE INLINE_LOCALS -#endif - -/* Code that converts between hosts and target byte order. Used on - every memory access (instruction and data). See sim-endian.h for - additional byte swapping configuration information. This module - can inline for all callers */ - -#ifndef SIM_ENDIAN_INLINE -#define SIM_ENDIAN_INLINE (DEFAULT_INLINE ? ALL_INLINE : 0) -#endif - -/* Low level bit manipulation routines. This module can inline for all - callers */ - -#ifndef BITS_INLINE -#define BITS_INLINE (DEFAULT_INLINE ? ALL_INLINE : 0) -#endif - -/* Code that gives access to various CPU internals such as registers. - Used every time an instruction is executed */ - -#ifndef CPU_INLINE -#define CPU_INLINE (DEFAULT_INLINE ? ALL_INLINE : 0) -#endif - -/* Code that translates between an effective and real address. Used - by every load or store. */ - -#ifndef VM_INLINE -#define VM_INLINE DEFAULT_INLINE -#endif - -/* Code that loads/stores data to/from the memory data structure. - Used by every load or store */ - -#ifndef CORE_INLINE -#define CORE_INLINE DEFAULT_INLINE -#endif - -/* Code to check for and process any events scheduled in the future. - Called once per instruction cycle */ - -#ifndef EVENTS_INLINE -#define EVENTS_INLINE (DEFAULT_INLINE ? ALL_INLINE : 0) -#endif - -/* Code monotoring the processors performance. It counts events on - every instruction cycle */ - -#ifndef MON_INLINE -#define MON_INLINE (DEFAULT_INLINE ? ALL_INLINE : 0) -#endif - -/* Code called on the rare occasions that an interrupt occures. */ - -#ifndef INTERRUPTS_INLINE -#define INTERRUPTS_INLINE DEFAULT_INLINE -#endif - -/* Code called on the rare occasion that either gdb or the device tree - need to manipulate a register within a processor */ - -#ifndef REGISTERS_INLINE -#define REGISTERS_INLINE DEFAULT_INLINE -#endif - -/* Code called on the rare occasion that a processor is manipulating - real hardware instead of RAM. - - Also, most of the functions in devices.c are always called through - a jump table. */ - -#ifndef DEVICE_INLINE -#define DEVICE_INLINE INLINE_LOCALS -#endif - -/* Code called whenever information on a Special Purpose Register is - required. Called by the mflr/mtlr pseudo instructions */ - -#ifndef SPREG_INLINE -#define SPREG_INLINE DEFAULT_INLINE -#endif - -/* Functions modeling the semantics of each instruction. Two cases to - consider, firstly of idecode is implemented with a switch then this - allows the idecode function to inline each semantic function - (avoiding a call). The second case is when idecode is using a - table, even then while the semantic functions can't be inlined, - setting it to one still enables each semantic function to inline - anything they call (if that code is marked for being inlined). - - WARNING: you need lots (like 200mb of swap) of swap. Setting this - to 1 is useful when using a table as it enables the sematic code to - inline all of their called functions */ - -#ifndef SEMANTICS_INLINE -#define SEMANTICS_INLINE (DEFAULT_INLINE & ~INLINE_MODULE) -#endif - -/* When using the instruction cache, code to decode an instruction and - install it into the cache. Normally called when ever there is a - miss in the instruction cache. */ - -#ifndef ICACHE_INLINE -#define ICACHE_INLINE (DEFAULT_INLINE & ~INLINE_MODULE) -#endif - -/* General functions called by semantics functions but part of the - instruction table. Although called by the semantic functions the - frequency of calls is low. Consequently the need to inline this - code is reduced. */ - -#ifndef SUPPORT_INLINE -#define SUPPORT_INLINE INLINE_LOCALS -#endif - -/* Model specific code used in simulating functional units. Note, it actaully - pays NOT to inline the PowerPC model functions (at least on the x86). This - is because if it is inlined, each PowerPC instruction gets a separate copy - of the code, which is not friendly to the cache. */ - -#ifndef MODEL_INLINE -#define MODEL_INLINE (DEFAULT_INLINE & ~INLINE_MODULE) -#endif - -/* Code to print out what options we were compiled with. Because this - is called at process startup, it doesn't have to be inlined, but - if it isn't brought in and the model routines are inline, the model - routines will be pulled in twice. */ - -#ifndef OPTIONS_INLINE -#define OPTIONS_INLINE MODEL_INLINE -#endif - -/* idecode acts as the hub of the system, everything else is imported - into this file */ - -#ifndef IDECOCE_INLINE -#define IDECODE_INLINE INLINE_LOCALS -#endif - -/* psim, isn't actually inlined */ - -#ifndef PSIM_INLINE -#define PSIM_INLINE INLINE_LOCALS -#endif - -/* Code to emulate os or rom compatibility. This code is called via a - table and hence there is little benefit in making it inline */ - -#ifndef OS_EMUL_INLINE -#define OS_EMUL_INLINE 0 -#endif - -#endif /* _PSIM_CONFIG_H */ |