mirror of
https://github.com/hsoft/collapseos.git
synced 2024-11-10 09:48:05 +11:00
9216057db8
I implement the screen using XCB which is much more friendly than z80e's SDL+CMake for development machines that want to install minimal dependencies (for example, a port-less OpenBSD rig).
26 lines
798 B
C
26 lines
798 B
C
#include <stdint.h>
|
|
#include <stdbool.h>
|
|
|
|
// These are keycodes for special keys
|
|
#define KBD_ALPHA 0x57
|
|
#define KBD_2ND 0x65
|
|
|
|
// NOTE: We don't manage the ON key here.
|
|
typedef struct {
|
|
// Bitmask of pressed keys. Like on real hardware, 0xff means nothing
|
|
// pressed. The group 7 has no key, but for code simplicity, we have a neat
|
|
// array of 8 bytes.
|
|
uint8_t pressed[8];
|
|
// Selected groups. Active low.
|
|
uint8_t selected;
|
|
} KBD;
|
|
|
|
void kbd_init(KBD *kbd);
|
|
uint8_t kbd_rd(KBD *kbd);
|
|
void kbd_wr(KBD *kbd, uint8_t val);
|
|
// The key is separated in two nibble. High nibble is group, low nibble is key.
|
|
void kbd_setkey(KBD *kbd, uint8_t key, bool pressed);
|
|
// Attempts to returns a key code corresponding to the specified char. 0 if
|
|
// nothing matches.
|
|
uint8_t kbd_trans(char c);
|