diff options
Diffstat (limited to 'emu/7seg.c')
| -rw-r--r-- | emu/7seg.c | 86 |
1 files changed, 86 insertions, 0 deletions
@@ -1,10 +1,18 @@ #include "7seg.h" #include <stdio.h> +#include <stdbool.h> + +#ifdef WITH_GUI + +#endif static device_vtable_t const seg7_vtable = { seg7_read, seg7_write, +#ifdef WITH_GUI + seg7_draw, +#endif seg7_deinit }; @@ -59,6 +67,84 @@ void seg7_write( void *obj, uint16_t addr, uint8_t data ) } } +#ifdef WITH_GUI + +enum { + NOF_DIGITS = 16, + NOF_SEGS = 7, + // direction of the segment (vertical or horizontal) + H = 0, + V = 1, + // segment positions in the segs array (bit) + A = 6, + B = 5, + C = 4, + D = 3, + E = 2, + F = 1, + G = 0 +}; + +static int segs[NOF_DIGITS] = { + 0x7E, 0x30, 0x6D, 0x79, 0x33, + 0x5B, 0x5F, 0x70, 0x7F, 0x7B, + 0x77, 0x1F, 0x4E, 0x3D, 0x4F, + 0x47 +}; + +static int x_pos[NOF_SEGS] = { + 5, 45, 45, 5, 5, 5 , 5 +}; + +static int y_pos[NOF_SEGS] = +{ + 5, 5, 45, 90, 45, 5, 45 +}; + +static int direction[NOF_SEGS] = +{ + H, V, V, H, V, V, H +}; + +static void printSegment( SDL_Renderer *renderer, int x, int y, int direction, bool enabled ) +{ + int r = 80; + + if( enabled ) { + r = 255; + } + + switch( direction ) { + case H: + boxRGBA( renderer, x-3, y-3, x+40, y+3, r, 0x00, 0x00, 0xFF ); + break; + + case V: + boxRGBA( renderer, x-3, y-3, x+3, y+40, r, 0x00, 0x00, 0xFF ); + break; + } +} + +static void printDigit( SDL_Renderer *renderer, int x, int y, int digit ) +{ + int v = ( 1 << 6 ); + for( int i = 0; i < 7; i++ ) { + printSegment( renderer, x + x_pos[i], y + y_pos[i], direction[i], v & segs[digit] ); + v >>= 1; + } +} + +void seg7_draw( void *obj, SDL_Renderer *renderer ) +{ + seg7_t *seg = (seg7_t *)obj; + + boxRGBA( renderer, 10, 10, 110, 110, 0x00, 0x00, 0x00, 0xFF ); + + printDigit( renderer, 10, 10, ( seg->latch & 0x00F0 ) >> 4 ); + printDigit( renderer, 60, 10, seg->latch & 0x000F ); +} +#endif + void seg7_deinit( void *obj ) { seg7_t *seg = (seg7_t *)obj; |