Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-07-04 01:18:59 +03:00
Code Issues Actions 4 Packages Projects Releases Wiki Activity

Merge pull request #2899 from vadosnaprimer/rewind

Browse Source 
explain the rewind command in debughlp
This commit is contained in:
R. Belmont 2017-12-07 08:02:40 -05:00 committed by GitHub
commit 4a0d5ba02f
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 15 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
src/emu/debug/debughlp.cpp
View File

@ -94,6 +94,7 @@ static const help_item static_help_list[] =
" pcatmemd <address>[,<cpu>] -- query which PC wrote to a given data memory address for the current CPU\n" " pcatmemd <address>[,<cpu>] -- query which PC wrote to a given data memory address for the current CPU\n"
" pcatmemi <address>[,<cpu>] -- query which PC wrote to a given I/O memory address for the current CPU\n" " pcatmemi <address>[,<cpu>] -- query which PC wrote to a given I/O memory address for the current CPU\n"
" (Note: you can also query this info by right clicking in a memory window\n" " (Note: you can also query this info by right clicking in a memory window\n"
" rewind[rw] -- go back in time by loading the most recent rewind state"
" statesave[ss] <filename> -- save a state file for the current driver\n" " statesave[ss] <filename> -- save a state file for the current driver\n"
" stateload[sl] <filename> -- load a state file for the current driver\n" " stateload[sl] <filename> -- load a state file for the current driver\n"
" snap [<filename>] -- save a screen snapshot.\n" " snap [<filename>] -- save a screen snapshot.\n"
@ -454,6 +455,19 @@ static const help_item static_help_list[] =
"pcatmem 400000\n" "pcatmem 400000\n"
" Print which PC wrote this CPU's memory location 0x400000.\n" " Print which PC wrote this CPU's memory location 0x400000.\n"
}, },
{
"rewind[rw]",
"\n"
" rewind[rw]"
"\n"
"The rewind command loads the most recent RAM-based state. Rewind states, when enabled, are "
"saved when \"step\", \"over\", or \"out\" command gets executed, storing the machine state as "
"of the moment before actually steping. Consecutively loading rewind states can work like "
"reverse execution. Depending on which steps forward were taken previously, the bahavior can "
"be similar to GDB's \"reverse-stepi\" or \"reverse-next\". All output for this command is "
"currently echoed into the running machine window. Previous memory and PC tracking statistics "
"are cleared, actual reverse execution does not occur.\n"
},
{ {
"statesave[ss]", "statesave[ss]",
"\n" "\n"
@ -472,7 +486,7 @@ static const help_item static_help_list[] =
{ {
"stateload[sl]", "stateload[sl]",
"\n" "\n"
" stateload[ss] <filename>\n" " stateload[sl] <filename>\n"
"\n" "\n"
"The stateload command retrieves a save state from disk. " "The stateload command retrieves a save state from disk. "
"The given state file gets read from the standard state directory (sta), and gets .sta to it - " "The given state file gets read from the standard state directory (sta), and gets .sta to it - "