mirror of
https://github.com/hsoft/collapseos.git
synced 2024-11-14 15:28:05 +11:00
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
|
|
#define T6A04_ROWSIZE (120/8)
|
|
#define T6A04_RAMSIZE 64*T6A04_ROWSIZE
|
|
|
|
typedef enum {
|
|
T6A04_XDEC = 0,
|
|
T6A04_XINC = 1,
|
|
T6A04_YDEC = 2,
|
|
T6A04_YINC = 3
|
|
} T6A04_INCMODE;
|
|
|
|
typedef struct {
|
|
// RAM is organized in 64 rows of 120 pixels (there is some offscreen
|
|
// memory). Each byte holds 8 pixels. unset means no pixel, set means pixel.
|
|
uint8_t ram[T6A04_RAMSIZE];
|
|
bool enabled;
|
|
// Whether the 8bit mode is enabled.
|
|
bool has8bitmode;
|
|
// Current "increment mode"
|
|
T6A04_INCMODE incmode;
|
|
// current Z offset
|
|
uint8_t offset;
|
|
// Currently active row
|
|
uint8_t currow;
|
|
// Currently active col (actual meaning depends on whether we're in 8bit
|
|
// mode)
|
|
uint8_t curcol;
|
|
// True when a movement command was just made or if the LCD was just
|
|
// initialized. When this is true, a read operation on the data port will be
|
|
// invalid (returns zero and doesn't autoinc).
|
|
bool just_moved;
|
|
} T6A04;
|
|
|
|
void t6a04_init(T6A04 *lcd);
|
|
uint8_t t6a04_cmd_rd(T6A04 *lcd);
|
|
void t6a04_cmd_wr(T6A04 *lcd, uint8_t val);
|
|
uint8_t t6a04_data_rd(T6A04 *lcd);
|
|
void t6a04_data_wr(T6A04 *lcd, uint8_t val);
|
|
bool t6a04_pixel(T6A04 *lcd, uint8_t y, uint8_t x);
|