Commit Graph

12 Commits

Author SHA1 Message Date
Aaron Giles
b5f2aa1240 Changed direct access EEPROM interface to return the "bus width" of the
EEPROM data, and the size is in terms of units, not bytes. Updated all
drivers accordingly.

Changed the ROM loading code to actually alter the region flags based
on the CPU endianness and bus width when creating the region, rather
than fixing them up on the fly. This means that callers to
memory_region_flags() will get the correct results.

Changed the expression engine to use two callbacks for read/write rather
than relying on externally defined functions.

Expanded memory access support in the expression engine. Memory accesses
can now be specified as [space][num]<size>@<address>. 'space' can be
one of the following:

   p = program address space of CPU #num (default)
   d = data address space of CPU #num
   i = I/O address space of CPU #num
   o = opcode address space of CPU #num (R/W access to decrypted opcodes)
   r = direct RAM space of CPU #num (always allows writes, even for ROM)
   e = EEPROM index #num
   c = direct REGION_CPU#num access
   u = direct REGION_USER#num access
   g = direct REGION_GFX#num access
   s = direct REGION_SOUND#num access

The 'num' field is optional for p/d/i/o/r, where is defaults to the
current CPU, and for e, where it defaults to EEPROM #0. 'num' is required
for all region-related prefixes. Some examples:

   w@curpc = word at 'curpc' in the active CPU's program address space
   dd@0    = dword at 0x0 in the active CPU's data address space
   r2b@100 = byte at 0x100 from a RAM/ROM region in CPU #2's program space
   ew@7f   = word from EEPROM address 0x7f
   u2q@40  = qword from REGION_USER2, offset 0x40
   
The 'size' field is always required, and can be b/w/d/q for byte, word,
dword, and qword accesses.
2008-07-17 08:07:12 +00:00
Aaron Giles
75d18b3a33 Changed how watchpoints work so that supporting them adds 0 overhead
unless some are actually live.

Changed a few call sites from using memory_set_context() to cpuintrf_push_context().
2008-06-28 07:21:54 +00:00
Aaron Giles
68f3a9ab9e Removed DEBUGGER flag from makefile and ENABLE_DEBUGGER
macro from the source code. All MAME builds now include
the debugger, and it is enabled/disabled exclusively by
the runtime command-line/ini settings. This is a minor 
speed hit for now, but will be further optimized going 
forward.

Changed the 'd' suffix in the makefile to apply to DEBUG
builds (versus DEBUGGER builds as it did before).

Changed machine->debug_mode to machine->debug_flags.
These flags now indicate several things, such as whether
debugging is enabled, whether CPU cores should call the
debugger on each instruction, and whether there are live
watchpoints on each address space.

Redesigned a significant portion of debugcpu.c around
the concept of maintaining these flags globally and a
similar, more complete set of flags internally for each
CPU. All previous functionality should work as designed
but should be more robust and faster to work with.

Added new debugger hooks for starting/stopping CPU
execution. This allows the debugger to decide whether
or not a given CPU needs to call the debugger on each
instruction during the coming timeslice.

Added new debugger hook for reporting exceptions.
Proper exception breakpoints are not yet implemented.

Added new module debugger.c which is where global
debugger functions live.
2008-06-26 14:51:23 +00:00
Aaron Giles
eeb821032e Several miscellaneous changes:
1. In the MIPS core:
    - renamed struct mips3_config -> mips3_config
    - updated all drivers to the new names
    - removed MIPS3DRC_STRICT_COP0 flag, which is no longer used
    - a few minor cleanups

2. In the CPU interface:
    - added new 'intention' parameter to the translate callback to
       indicate read/write/fetch access, user/supervisor mode, and
       a flag for debugging
    - updated all call sites to pass an appropriate value
    - updated all CPU cores to the new prototype

3. In the UML:
    - added new opcode SETC to set the carry flag from a source bit
    - added new opcode BSWAP to swap bytes within a value
    - updated C, x86, x64 back-ends to support the new opcodes
    - updated disassembler to support the new opcodes

4. In the DRC frontend:
    - fixed bug in handling edge case with the PC near the 0 or ~0
2008-05-29 07:18:35 +00:00
smf-
07459e6491 Passes mem_mask to the read and write debug hooks. This allows the address & size of the memory access to be correctly calculated when using a memory call that takes a mem_mask. Unexpected results will occur if you pass in a mem_mask that has a gap in. For example 0x00ff00ff is treated as a 3 byte operation, a watchpoint for the gap will still trigger. To simplify the mem_mask decoding it is inverted before passing to the debugger. 2008-03-27 20:23:36 +00:00
smf-
7d38bf085f reverted, I misunderstood something and it's broken. I'm on it. 2008-03-27 19:56:24 +00:00
smf-
8b7582a477 Passes mem_mask to the read and write debug hooks. This allows the address & size of the memory access to be correctly calculated when using a memory call that takes a mem_mask. While testing I found that the address had already had it's lower bits masked out, so watch points were broken already. Unexpected results will occur if you pass in a mem_mask that has a gap in. For example 0x00ff00ff is treated as a 3 byte operation, a watchpoint for the gap will still trigger. To simplify the mem_mask decoding it is inverted before passing to the debugger. 2008-03-27 19:22:20 +00:00
Aaron Giles
e31f9a6313 Normalized function pointer typedefs: they are now all
suffixed with _func. Did this throughout the core and
drivers I was familiar with.

Fixed gcc compiler error with recent render.c changes.
gcc does not like explicit (int) casts on float or
double functions. This is fracking annoying and stupid,
but there you have it.
2008-03-03 01:51:31 +00:00
Zsolt Vasvari
7198a00e65 - Moves all video timing logic from cpuexec.c to video.c
- Added a video_screen_register_vbl_cb() function for registering VBLANK callbanks
- Changed inptport.c and debugcpu.c to make use the VBLANK callbacks
- Added video_screen_get_time_until_vblank_start()
- CCPU and anything using cpu_scalebyfcount() are currently broken
- I did some fairly extensive testing, but this is a very signficant internal change,
  so some things may have broke
2008-03-01 15:50:12 +00:00
Aaron Giles
ee9f88963c Copyright cleanup:
- removed years from copyright notices
 - removed redundant (c) from copyright notices
 - updated "the MAME Team" to be "Nicola Salmoria and the MAME Team"
2008-01-06 00:47:40 +00:00
Aaron Giles
422ccce762 (From Oliver Stoneberg)
This is an updated version of my earlier ATTR_PRINTF patch. It was 
reviewed by Atari Ace to use ATTR_PRINTF properly and fixes even more 
format errors. I also reviewed the whole source again and it is now 
used in all possible places.
2008-01-03 05:37:18 +00:00
Aaron Giles
7b77f12186 Initial checkin of MAME 0.121. 2007-12-17 15:19:59 +00:00