head 1.2; access; symbols perseant-exfatfs-base-20261102:1.2 perseant-exfatfs-base-20250801:1.2 perseant-exfatfs-base-20240630:1.2 cjep_sun2x:1.2.0.44 cjep_sun2x-base:1.2 cjep_staticlib_x-base1:1.2 cjep_staticlib_x:1.2.0.42 cjep_staticlib_x-base:1.2 phil-wifi-20200421:1.2 phil-wifi-20200411:1.2 phil-wifi-20200406:1.2 pgoyette-compat-merge-20190127:1.2 pgoyette-compat-20190127:1.2 pgoyette-compat-20190118:1.2 pgoyette-compat-1226:1.2 pgoyette-compat-1126:1.2 pgoyette-compat-1020:1.2 pgoyette-compat-0930:1.2 pgoyette-compat-0906:1.2 pgoyette-compat-0728:1.2 pgoyette-compat-0625:1.2 pgoyette-compat-0521:1.2 pgoyette-compat-0502:1.2 pgoyette-compat-0422:1.2 pgoyette-compat-0415:1.2 pgoyette-compat-0407:1.2 pgoyette-compat-0330:1.2 pgoyette-compat-0322:1.2 pgoyette-compat-0315:1.2 pgoyette-compat:1.2.0.40 pgoyette-compat-base:1.2 perseant-stdc-iso10646:1.2.0.38 perseant-stdc-iso10646-base:1.2 prg-localcount2-base3:1.2 prg-localcount2-base2:1.2 prg-localcount2-base1:1.2 prg-localcount2:1.2.0.36 prg-localcount2-base:1.2 pgoyette-localcount-20170426:1.2 bouyer-socketcan-base1:1.2 pgoyette-localcount-20170320:1.2 bouyer-socketcan:1.2.0.34 bouyer-socketcan-base:1.2 pgoyette-localcount-20170107:1.2 pgoyette-localcount-20161104:1.2 localcount-20160914:1.2 pgoyette-localcount-20160806:1.2 pgoyette-localcount-20160726:1.2 pgoyette-localcount:1.2.0.32 pgoyette-localcount-base:1.2 netbsd-5-2-3-RELEASE:1.2 netbsd-5-1-5-RELEASE:1.2 yamt-pagecache-base9:1.2 yamt-pagecache-tag8:1.2 tls-earlyentropy:1.2.0.28 tls-earlyentropy-base:1.2 riastradh-xf86-video-intel-2-7-1-pre-2-21-15:1.2 riastradh-drm2-base3:1.2 netbsd-5-2-2-RELEASE:1.2 netbsd-5-1-4-RELEASE:1.2 netbsd-5-2-1-RELEASE:1.2 netbsd-5-1-3-RELEASE:1.2 agc-symver:1.2.0.30 agc-symver-base:1.2 tls-maxphys-base:1.2 yamt-pagecache-base8:1.2 netbsd-5-2:1.2.0.26 yamt-pagecache-base7:1.2 netbsd-5-2-RELEASE:1.2 netbsd-5-2-RC1:1.2 yamt-pagecache-base6:1.2 yamt-pagecache-base5:1.2 yamt-pagecache-base4:1.2 netbsd-5-1-2-RELEASE:1.2 netbsd-5-1-1-RELEASE:1.2 yamt-pagecache-base3:1.2 yamt-pagecache-base2:1.2 yamt-pagecache:1.2.0.24 yamt-pagecache-base:1.2 bouyer-quota2-nbase:1.2 bouyer-quota2:1.2.0.22 bouyer-quota2-base:1.2 matt-nb5-pq3:1.2.0.20 matt-nb5-pq3-base:1.2 netbsd-5-1:1.2.0.18 netbsd-5-1-RELEASE:1.2 netbsd-5-1-RC4:1.2 netbsd-5-1-RC3:1.2 netbsd-5-1-RC2:1.2 netbsd-5-1-RC1:1.2 netbsd-5-0-2-RELEASE:1.2 netbsd-5-0-1-RELEASE:1.2 jym-xensuspend-nbase:1.2 netbsd-5-0:1.2.0.16 netbsd-5-0-RELEASE:1.2 netbsd-5-0-RC4:1.2 netbsd-5-0-RC3:1.2 netbsd-5-0-RC2:1.2 jym-xensuspend:1.2.0.14 jym-xensuspend-base:1.2 netbsd-5-0-RC1:1.2 netbsd-5:1.2.0.12 netbsd-5-base:1.2 mjf-devfs2:1.2.0.10 mjf-devfs2-base:1.2 yamt-pf42-base4:1.2 yamt-pf42-base3:1.2 hpcarm-cleanup-nbase:1.2 yamt-pf42-base2:1.2 yamt-pf42:1.2.0.8 yamt-pf42-base:1.2 keiichi-mipv6:1.2.0.6 keiichi-mipv6-base:1.2 cube-autoconf:1.2.0.4 cube-autoconf-base:1.2 hpcarm-cleanup:1.2.0.2 hpcarm-cleanup-base:1.2 netbsd-1-5-PATCH003:1.1.1.2 netbsd-1-5-PATCH002:1.1.1.2 netbsd-1-5-PATCH001:1.1.1.2 netbsd-1-5-RELEASE:1.1.1.2 netbsd-1-5-BETA2:1.1.1.2 netbsd-1-5-BETA:1.1.1.2 netbsd-1-4-PATCH003:1.1.1.2 netbsd-1-5-ALPHA2:1.1.1.2 netbsd-1-5:1.1.1.2.0.8 netbsd-1-5-base:1.1.1.2 netbsd-1-4-PATCH002:1.1.1.2 wrstuden-devbsize-19991221:1.1.1.2 wrstuden-devbsize:1.1.1.2.0.6 wrstuden-devbsize-base:1.1.1.2 comdex-fall-1999:1.1.1.2.0.4 comdex-fall-1999-base:1.1.1.2 netbsd-1-4-PATCH001:1.1.1.2 netbsd-1-4-RELEASE:1.1.1.2 netbsd-1-4:1.1.1.2.0.2 netbsd-1-4-base:1.1.1.2 psim-970703:1.1.1.2 CAGNEY:1.1.1 gdb-4-16:1.1.1.1 FSF:1.1.1; locks; strict; comment @# @; 1.2 date 2000.08.10.15.03.11; author tv; state dead; branches; next 1.1; 1.1 date 98.02.01.07.56.47; author thorpej; state Exp; branches 1.1.1.1; next ; 1.1.1.1 date 98.02.01.07.56.47; author thorpej; state Exp; branches; next 1.1.1.2; 1.1.1.2 date 98.02.01.08.01.23; author thorpej; state Exp; branches; next ; desc @@ 1.2 log @This was never used at this gnu/dist level, so remove. @ text @ See the ChangeLog file looking for lines taged with the word FIXME. COREFILE.C: The implementation of corefile.c (defined by corefile.h) isn't the best. It is intended to be functionaly correct rather than fast. One option being considered is to add a data cache to reduce the overhead of the most common case of data read/writes. HTAB (page) code for OEA model untested. Some of the vm code instructions unimplemented. Lacks PowerOpen (a.k.a. XCOFF a.k.a. AIX) and NT startups. The PowerOpen worked until I added the ELF one. Missing VEA system calls. Missing or commented out instructions. 64bit target untested. 64bit host broken. For instance use of scanf "%x", &long long. Event code for pending events from within signal handlers not finished/tested. Better and more devices. PORTABILITY (Notes taken from Michael Meissner): Heavy use of the ## operator - fix using the clasic X/**/Y hack; Use of the signed keyword. In particular, signed char has no analogue in classic C (though most implementations of classic C use signed chars); Use of long long which restricts the target compiler to be GCC. @ 1.1 log @Initial revision @ text @@ 1.1.1.1 log @Import the simulator sources from the gdb-4.16 distribution which were omitted when our GDB was updated. @ text @@ 1.1.1.2 log @Import the psim-970703 (PowerPC Simulator) snapshot. @ text @d1 1 a1 1 ChangeLog d3 5 a7 1 See the ChangeLog file looking for lines taged with the word FIXME. d9 2 d12 2 a13 1 COREFILE.C: d15 1 a15 4 The implementation of corefile.c (defined by corefile.h) isn't the best. It is intended to be functionaly correct rather than fast. One option being considered is to add a data cache to reduce the overhead of the most common case of data read/writes. d17 1 d19 1 a19 1 VEA: d21 1 a21 1 Missing VEA system calls. d23 2 a24 1 ppc-instructions: d26 1 a26 1 Missing or commented out instructions. d28 5 a33 1 64bit: a34 99 64bit target untested. 64bit host broken. For instance use of scanf "%x", &long long. hw_*.c: Better and more devices. PORTABILITY: (Notes taken from Michael Meissner): Heavy use of the ## operator - fix using the clasic X/**/Y hack; Use of the signed keyword. In particular, signed char has no analogue in classic C (though most implementations of classic C use signed chars); Use of long long which restricts the target compiler to be GCC. TRACING: debug.c: Macro's should be extended to include: IS_*TRACE: True if tracing enabled *TRACE_PREFIX: Outputs just the prefix line hw_trace.c: Flush, replace with a psim_set_tracing or some such program. CIA/NIA: Replace with functions to return/increment the CIA? SMP & GDB: GDB doesn't understand SMP! OVERALL STRUCTURE: A new file pstruct.h is to be created that contains a single flat data structure containing: pstruct { events; core; processor[nr_cpus]; monitor; devices; trace; } The CPU's structure, in turn would contain the VM sub structures. When SMP==0, everything would have PSTRUCT passed. In SMP mode, however, there are two choices: PSTRUCT + CPU_NR or PROCESSOR. I suspect the latter is better. It is believed that this would significantly improve performance (at the price of reduced control over object scope). IGEN: Igen at present can't do the following: o duplication is an all or nothing afair. It should be configurable according to the instruction or the sub-table. o Due to the naming, only a single generated simulator can be included in a program. IGEN should be able to generate multiple engines that can all be included in a program o handle alternate architectures. o Igen should support the generation of a disasembler and posibly an assembler. I suggest that the table be extended to include, for each instruction, additional lines describing the extual format of the instruction. One possible format is: "mtlr %RS":SPR.something "mtspr %SPR, %RS" @