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feat(p3io/ddr): Add data structures for DDR P3IO data

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Reverse engineered using a real P3IO DDR IO board and
the DDR 16 game binary for additional reference
This commit is contained in:
icex2 2023-06-11 17:10:38 +02:00 committed by icex2
parent 069981ef63
commit 1a86cc7ee5
1 changed files with 81 additions and 0 deletions
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81
src/main/p3io/ddr.h Normal file
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#ifndef P3IO_DDR_H
#define P3IO_DDR_H
#include <stdint.h>
#pragma pack(push, 1)
struct p3io_ddr_player {
uint8_t menu_start : 1;
uint8_t pad_up : 1;
uint8_t pad_down : 1;
uint8_t pad_left : 1;
uint8_t pad_right : 1;
uint8_t unknown : 1;
uint8_t menu_left : 1;
uint8_t menu_right : 1;
};
struct p3io_ddr_operator {
// Yes, this also contains the HD cab menu up and down buttons
// which are not "operator" inputs. I suppose they just had to go
// somewhere ¯\_(ツ)_/¯
uint8_t p1_menu_up : 1;
uint8_t p1_menu_down : 1;
uint8_t p2_menu_up : 1;
uint8_t p2_menu_down : 1;
uint8_t test : 1;
uint8_t coin : 1;
uint8_t service : 1;
uint8_t unknown : 1;
};
struct p3io_ddr_jamma {
uint8_t unknown_80;
struct p3io_ddr_player p1;
struct p3io_ddr_player p2;
struct p3io_ddr_operator operator;
uint32_t unused;
uint32_t unused2;
};
struct p3io_ddr_cabinet_light {
uint8_t p1_menu_buttons : 1;
uint8_t p2_menu_buttons : 1;
uint8_t unknown : 2;
uint8_t top_p1_lower : 1;
uint8_t top_p1_upper : 1;
uint8_t top_p2_lower : 1;
uint8_t top_p2_upper : 1;
};
struct p3io_ddr_output {
uint8_t unused_00[3];
struct p3io_ddr_cabinet_light cabinet;
};
_Static_assert(
sizeof(struct p3io_ddr_player) == 1,
"struct p3io_ddr_player is the wrong size");
_Static_assert(
sizeof(struct p3io_ddr_operator) == 1,
"struct p3io_ddr_operator is the wrong size");
_Static_assert(
sizeof(struct p3io_ddr_jamma) == sizeof(uint32_t) * 3,
"struct p3io_ddr_jamma is the wrong size");
_Static_assert(
sizeof(struct p3io_ddr_cabinet_light) == 1,
"struct p3io_ddr_cabinet_light is the wrong size");
_Static_assert(
sizeof(struct p3io_ddr_output) == sizeof(uint32_t),
"struct p3io_ddr_output is the wrong size");
#pragma pack(pop)
#endif