MAMETesters Bugs Fixed

----------------------

connect4_0115u1ora [Luigi30]



Source Changes

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Fixed PIA numbers in revamped Spiders driver. [Zsolt Vasvari]



Updated TIA graphics code is the code from the MESS repository. Also

updated tourtabl driver to accommodate the changes. [Wilbert Pol]



Fixed Space Firebird so that the sprites are opaque with respect to 

each other and bullets, but transparent with respect to the star 

field. [Zsolt Vasvari]



Fixed subtle behavior in handling of PIA port A. This allows for the

removal of hacks in the Qix driver and the Williams driver.

[Zsolt Vasvari]



Cleaned up the tilemap get_info callbacks: [Atari Ace]

 * regularized and clean up the existing callbacks

 * changed some callbacks to use int tile_index as the parameter

    so that all callbacks use consistent naming

 * folded some direct uses of tile_info.flags into calls to 

    SET_TILE_INFO()

 * changed the Konami drivers to manipulate the tile_info global only 

    within the tile_get_info callbacks

 * replaced all the callback declarations with TILE_GET_INFO() 

    wrappers 

 * changed the interface to pass tile_info as a parameter and made

    tile_info a static variable only accessible inside tilemap.c.



Significant changes to the berzerk driver: [Zsolt Vasvari]

 - Video timings, memory map and interrupt system implemented from 

    schematics

 - Hooked up colors according to the schematics as well. The colors 

    changed significantly. For example the yellow robots are now 

    more like a mustard color.



More ARM wrestling: [R. Belmont]

 - Fixed error in carry propagation on ALU opcodes of the form 

    ALU r1, r2, r3 SHIFTEROP #imm

 - Fixed Thumb ADD instructions where the PC is involved

 - Fixed LDMIA to mask off bits 0 and 1 of the destination address

 - MSR instruction now properly respects processor mode and field 

    code flags



Modernized the Beam Invaders, Clay Shoot, and Embargo drivers.

[Zsolt Vasvari]



Changed the sound balance in Thunder Dragon 2 to match the original 

PCB. Also verified the 68000 clock. [Corrado Tomaselli]



Fixed several more opcodes in the encrypted Irem CPU. [Robiza]



Fixed disassembly of brset and brclr opcodes in the 68HC11 core.

[Phil Skuse]



Fixed tilemap colors in the Konami ZR107 driver. [Ville Linde]



Fixed bug in INR/DCR opcodes in 8085 CPU core. [allentown_john]



Updated PIA interfaces to support masks for port A/B inputs. This

allows proper behavior of unconnected pins, according to the specs.

Updated a number of games to use the new interfaces. [Zsolt Vasvari]



Fixed bug that failed to initialize all IRQ states in the 6809 core

on a reset. Also fixed cycle timing and removed obsolete code from

the core. [Ernesto Corvi, Zsolt Vasvari]



Cleaned up vec_mult implementation. [Nathan Woods]



Improved toratora driver: [Zsolt Vasvari]

 - added SN76477 from the schematics, but it sounds terrible; no doubt 

    the schematics are incorrect in many places

 - updated to the recent PIA changes



Fixed input.c to use osd_ticks() instead of clock(). [Nathan Woods]



Fixed bit calculation in 6526cia.c which broke joysticks in the C64

driver in MESS. [Pete Rittwage]



Improvements to the rd2tank driver: [Zsolt Vasvari]

 - fixed colors, based on the Red Tank flyer

 - added AY8910's, sounds fine, but how exactly they are hooked up 

    to the PIA is not fully understood.

 - hooked up CRTC properly



New games added or promoted from NOT_WORKING status

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Wild Arrow [Zsolt Vasvari]

G-Stream G2020 [David Haywood]



New clones added

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Multi Game (set 2) [Roberto Fresca]

19XX: The War Against Destiny (Brazil 951218) [Nicola Salmoria]

Thunder Dragon 2 (9th Nov. 1993) [Corrado Tomaselli]

Flicky (128k Version, System 2, not encrypted) [Corrado Tomaselli]

Flicky (64k Version, System 1, 315-5051, set 2) [Corrado Tomaselli]

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