#BOOM OLD MAC GAME EMULATOR SOFTWARE#
#BOOM OLD MAC GAME EMULATOR CODE#

Since I got the characters and sprites decoding correctly this morning, I thought I would put up this 'first look' video. OK, I got some time last weekend to start disassembling the ROMs and trying to workout how the game works. Tiles_and_sprites.png (3.16 KiB) Viewed 4520 times PS There is also the problem that six colours are used per scan line, the fireball itself is red, yellow, white/cyan and a black background. The final thing is that Warlords is a four player game, with each player having a 'paddle' and 'fire' button.ДЄfter chatting with flynnjs, it looks like there is a fairly simple and cheap way to allow four fire buttons and after checking the wiring on Atari VCS/2600 paddles, it looks like they can be modified very simply to work on the beeb (unfortunately, not the joysticks though). *all started togetherSince it looks like all the POKEY channels can make 'noise', and most of the effects use 'noise', I will have to swap some out, so I will probably write beeb replacements for them instead of simulating the POKEY. Lazer boom: fireball hit edge of screen / wall

#BOOM OLD MAC GAME EMULATOR CODE#

With routines to flip the sprites and flip and mirror the tiles, 10kB 12kB (11 sprites and 1 tiles) is needed for the gfx data, 12kB 13kB if I skip the flipping code for tiles (can't really skip the sprite flip code as that would add 8kB 22kB+tiles).Д¬ode: Select all soft boom : bat hit fire ball / start game timer The sound is handled by a POKEY, which is quite a flexible 4 channel sound chip which also handles ADC (8 channels), timers and a keyboard matrix. The hardware also supports a palette for each sprite and some sort of attribute map for the characters. These are the characters (top) and tiles (bottom) that Warlords has. There is a second set of 64 8x8 pixel tiles that can be used as one of the 16 sprites, again each can be flipped or mirrored.

#BOOM OLD MAC GAME EMULATOR SOFTWARE#

Warlords uses the same (or very similar) hardware to Centipede and a few other games and not too different to Sprint and the Exidy games that I have already written beeb emulators for.ДЇor the software developer, the machine looks like a 256x 224 240 pixel 32x 28 30 character display, where each character is one of 64 that can be flipped or mirrored. I've been thinking about a Warlords emulator for the beeb.

Boom old mac game emulator