https://wiki.gametank.zone/ 2026-04-27T14:36:40+00:00 https://wiki.gametank.zone/ https://wiki.gametank.zone/lib/exe/fetch.php?media=wiki:logo.png text/html 2024-11-08T08:31:06+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gametank.zone/doku.php?id=development:csdk:2.0:headers:audio_coprocessor&rev=1731054666&do=diff audio_coprocessor.h audio_coprocessor.h provides functions for interacting with the Audio Coprocessor, usually abbreviated as “ACP”. It also allows for communication with the accompanying Audio Firmware given in “audio_fw.asm”. The current audio firmware uses a Frequency Modulation technique to produce sound. Working with these parameters directly requires a bit of really involved theory to be covered which is outside the scope of this page. For the most part developers can use functions from … text/html 2024-11-22T09:49:40+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gametank.zone/doku.php?id=development:csdk:2.0:headers:banking&rev=1732268980&do=diff banking.h Functions for switching the active ROM bank on the cartridge. The 2MB cartridge for the GameTank has a split memory access where part of the flash is always accessible (the boot segment) and the rest is accessed through a movable window. All 16-bit pointers to data in different ROM banks will occupy the same overlapping address range, so the bank switching functions must be used to dictate which bank is actually being accessed. text/html 2024-11-22T09:07:42+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gametank.zone/doku.php?id=development:csdk:2.0:headers:draw_direct&rev=1732266462&do=diff draw_direct.h draw_direct.h provides macros and functions to support setting up draw operations by direct manipulation of blitter registers. The functions and macros are largely convenience functions for setting up the control registers for common operations, like drawing sprites or colored boxes. text/html 2024-11-20T22:05:53+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gametank.zone/doku.php?id=development:csdk:2.0:headers:draw_queue&rev=1732140353&do=diff draw_queued.h draw_queued.h provides a queued drawing API, so that draw operations can be set even while a previous draw is still running. The queue is interrupt-driven, meaning that the interrupt handler will check the queue and start the next draw operation if there is one in the list. text/html 2024-11-08T02:57:28+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gametank.zone/doku.php?id=development:csdk:2.0:headers:gametank&rev=1731034648&do=diff gametank.h Header file with a lot of general system defines Functions void wait(); wait() waits for the next interrupt to be triggered, either IRQ or NMI. Will trigger even it SEI is blocking the IRQ handler. Macros PROFILER_START PROFILER_START(x) text/html 2024-11-08T03:11:40+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gametank.zone/doku.php?id=development:csdk:2.0:headers:gfx_sys&rev=1731035500&do=diff gfx_sys.h gfx_sys.h provides functions and macros related to low level graphics system functions Defines Sprite flips * SPRITE_FLIP_NONE - Apply no sprite flip * SPRITE_FLIP_X - Apply horizontal sprite flipping * SPRITE_FLIP_Y - Apply vertical sprite flipping text/html 2024-11-08T02:54:12+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gametank.zone/doku.php?id=development:csdk:2.0:headers:input&rev=1731034452&do=diff input.h Functions update_inputs This should be called once per frame, ideally right after a v-sync so that the timing is consistent. It updates the controller state variables for both players. void update_inputs(); Input-related Variables extern int player1_buttons, player1_old_buttons, player1_new_buttons; extern int player2_buttons, player2_old_buttons, player2_new_buttons; text/html 2024-11-20T21:14:18+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gametank.zone/doku.php?id=development:csdk:2.0:headers:music&rev=1732137258&do=diff music.h Functions init_music void init_music(); This should only need to be called once, after init_audio_coprocessor() and before doing any music or sound effects. play_song void play_song(const unsigned char* song, char bank_num, char loop); text/html 2024-11-20T21:46:19+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gametank.zone/doku.php?id=development:csdk:2.0:headers:persist&rev=1732139179&do=diff persist.h Functions for saving data to the cartridge flash at runtime. Functions clear_save_sector() void clear_save_sector(); The flash memory sector to be written must be cleared first to all 0xFF bytes, as the write operation can only change 1 bits to 0 bits. text/html 2024-11-20T21:40:07+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gametank.zone/doku.php?id=development:csdk:2.0:headers:random&rev=1732138807&do=diff random.h LFSR pseudorandom number generator implementation Functions rnd int rnd(); Return a random 16-bit number rnd_range int rnd_range(int low, int high); Return a random 16-bit number from low (inclusive) to high (exclusive) text/html 2024-11-20T21:37:06+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gametank.zone/doku.php?id=development:csdk:2.0:headers:sprites&rev=1732138626&do=diff sprites.h Functions allocate_sprite SpriteSlot allocate_sprite(SpritePage* sprite); Allocate space for an image in Sprite RAM and return a single-byte handle for that image. Every BMP asset gets a _load_list struct generated. Images greater than 128 pixels in length or width will be broken into multiple parts, as each text/html 2024-11-20T21:42:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://wiki.gametank.zone/doku.php?id=development:csdk:2.0:headers:text&rev=1732138968&do=diff text.h Text rendering feature Functions text_init void text_init(); description text_load_font SpriteSlot text_load_font(); description text_print_string void text_print_string(char* text); description text_sprint_num void text_sprint_num(char* s, unsigned char num);