Release Date

MAME 0.58 was released on 6 February 2002.

Contributors

The known contributors for this version are, in alphabetical order:


Specific Contributions

The known contributions for this version are, in the order specified in the whatsnew:

  • Tatsuyuki Satoj fixed the VLM5030 emulation (Punch Out, Track & Field, Yie-Ar Kung Fu etc.).
  • Aaron Giles added a new blitting effect "-effect sharp" to the Windows port. This gives a sharper image than the default.
  • New macros have been added to declare common callback functions and enforce naming conventions. All drivers have been converted to the new macros:
    • void init_drivername() -> DRIVER_INIT( name )
    • int generate_int() -> INTERRUPT_GEN( func )
    • void name_init_machine() -> MACHINE_INIT( name )
    • void nvram_handler() -> NVRAM_HANDLER( name )
    • void name_vh_convert_color_prom() -> PALETTE_INIT( name )
    • int name_vh_start() -> VIDEO_START( name )
    • void name_vh_stop() -> VIDEO_STOP( name )
    • void name_vh_eof() -> VIDEO_EOF( name )
    • void name_vh_screenrefresh() -> VIDEO_UPDATE( name )
  • Major change to the way machine drivers are set up. A series of macros is now available (defined in driver.h) to "build up" a machine driver. The ordering of items in the machine driver is arbitrary, apart from CPU-specific data, which is tied to the most-recently referenced CPU. With this new format, machine drivers can now be built by modifying another machine driver, providing a primitive inheritance mechanism. See any driver for an example of the new format. See mcr.c for a more complex example of inheritance.
  • New functions auto_bitmap_alloc() and auto_bitmap_alloc_depth() are now available to create automatically managed bitmaps. Combined with auto_malloc(), there is no need for a video_stop function in most cases. All existing drivers have been modified to take advantage of these features.
  • The old interrupt system has now been made officially obsolete. This means that the function cpu_cause_interrupt() is no longer available; you must use cpu_set_irq_line() or cpu_set_irq_line_and_vector() instead. It also means that a number of old/conflicting constants have been removed. In addition, interrupt generation callbacks for CPUs no longer return an IRQ line or vector. Instead, the interrupt callback must actively cause the interrupt via cpu_set_irq_line(). All existing drivers have been updated to these changes.
  • New interrupt callback functions: nmi_line_pulse(), nmi_line_assert(), irqn_line_hold(), irqn_line_pulse(), irqn_line_assert(). These functions replace the old interrupt() and nmi_interrupt() callbacks and can be used directly as interrupt callbacks.
  • The function tilemap_set_clip() has been removed. In its place, there is a new 'cliprect' parameter to tilemap_draw(). All existing drivers have been updated to support this change.
  • In preparation for partial updating support, the parameters to video_update have changed. A new parameter 'cliprect' has been added, which should be honored. In the future, the parameter will contain the subset of the screen to render; for now, it just contains Machine->visible_area. In addition, the 'full_refresh' parameter is gone; update functions must always redraw the requested portion of the bitmap. Some drivers have been updated to fully support the cliprect; others still need to be updated.
  • Two new functions have been added to the timer system. timer_create() creates a new "permanent" timer, and timer_adjust() adjusts the scheduling of that timer. This is now the only way to dynamically manipulate a timer. The old functions timer_set() and timer_pulse() are still around, but they no longer return a handle to the timer they create. Timers created with timer_create() should be created at initialization time, not dynamically. Timers also now participate in the automatic resource tracking, so there is no need to explicitly dispose of them. All existing drivers have been updated with the necessary changes.
  • Basic generic NVRAM handlers have been added. For a number of games, it is sufficient to point the global variables 'generic_nvram' and 'generic_nvram_size' to the location and size of the NVRAM area. In the machine driver, you can now specify 'generic_0fill' or 'generic_1fill' to request a generic NVRAM handler. The 0fill and 1fill refer to how the memory is initialized in the absence of an .nv file.
  • The following old functions and macros have now been fully deprecated:
    • cpu_get_pc() -> activecpu_get_pc()
    • cpu_get_sp() -> activecpu_get_sp()
    • cpu_getpreviouspc() -> activecpu_get_previouspc()
    • cpu_get_reg() -> activecpu_get_reg()
    • cpu_set_reg() -> activecpu_set_reg()
    • cpu_set_op_base() -> activecpu_set_op_base()
    • cpu_get_pc_byte() -> activecpu_get_pc_byte()
    • READ_WORD -> (no equivalent)
    • WRITE_WORD -> (no equivalent)
  • Aaron Giles added the new function force_partial_update(), call this to force a partial update to occur up to and including the specified scanline.


Game Support

New Games supported or promoted from GAME_NOT_WORKING status


New clones added