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#define DISK_IMG_WIDTH 16
#define DISK_IMG_HEIGHT 16
unsigned short int disk_img[] = {
0x3357, 0x3357, 0x3357, 0x3357, 0x3357, 0x3357, 0x3357, 0x3357, 0x3357, 0x3b77, 0x3b77,
0x3b77, 0x3b57, 0x3b97, 0x3356, 0x0000, 0x3357, 0xd71e, 0xd71e, 0xffdf, 0xf7df, 0xf7df,
0xf7bf, 0xef9f, 0xef9f, 0xf7df, 0xf7df, 0xef9f, 0xdf5f, 0xbe9d, 0x5c59, 0x3356, 0x3357,
0xd6fe, 0x855d, 0xf7df, 0xf7df, 0x6479, 0xef9f, 0xef9f, 0xf7bf, 0xffdf, 0xf7bf, 0xe77f,
0xdf3f, 0xbe9d, 0xbe9d, 0x3b97, 0x3357, 0xd6fe, 0x7d5d, 0xf7bf, 0xf7bf, 0x6479, 0xef9f,
0xefbf, 0xf7df, 0xf7df, 0xef9f, 0xdf5f, 0xdf3e, 0x7d1c, 0xc6bd, 0x3356, 0x3357, 0xcefe,
0x7d5c, 0xef9f, 0xef9f, 0x6479, 0xef9f, 0xf7df, 0xffdf, 0xefbf, 0xdf5f, 0xdf3e, 0xdf3e,
0x7d1c, 0xae1c, 0x3356, 0x3357, 0xcefe, 0x7d3c, 0xe77f, 0xe77f, 0xe77f, 0xefbf, 0xf7df,
0xf7bf, 0xe77f, 0xdf3e, 0xdf3e, 0xdf3e, 0x751b, 0xa5fc, 0x3336, 0x3357, 0xc6de, 0x7d3c,
0x6479, 0x6479, 0x6479, 0x6c99, 0x6c99, 0x6c99, 0x6479, 0x6479, 0x6479, 0x6479, 0x74fb,
0x9ddc, 0x3336, 0x3357, 0xc6de, 0x7d3c, 0x7d1c, 0x7d3c, 0x7d3c, 0x7d1c, 0x7d1c, 0x7d1c,
0x751b, 0x74fb, 0x74fb, 0x74fb, 0x74fb, 0x9dbb, 0x3336, 0x3357, 0xc6be, 0x7d1c, 0x7d1c,
0x7d1c, 0x7d1c, 0x7d3c, 0x7d1c, 0x7d1c, 0x751b, 0x74fb, 0x74fb, 0x74db, 0x74db, 0x959b,
0x3335, 0x3357, 0xbe9e, 0x7d1c, 0x7d1c, 0x7d1c, 0x7d1c, 0x7d1c, 0x7d1c, 0x74fb, 0x74fb,
0x74fb, 0x74db, 0x74db, 0x74da, 0x8d5a, 0x3315, 0x3357, 0xbe9d, 0x7d1c, 0xffdf, 0xffdf,
0xffdf, 0xffdf, 0xffdf, 0xffdf, 0xffdf, 0xffdf, 0xffdf, 0xffdf, 0x6cba, 0x8d3a, 0x3315,
0x3b57, 0xbe7d, 0x7d1c, 0xf7df, 0x8e0c, 0x8e0c, 0x8e0c, 0x8e0c, 0x8e0c, 0x8e0c, 0x8e0c,
0x8e0c, 0xf7df, 0x6c99, 0x8519, 0x3315, 0x3b77, 0xb67d, 0x7d1c, 0xf7df, 0xc6f7, 0xc6f7,
0xc6f7, 0xc6f7, 0xc6f7, 0xc6f7, 0xc6f7, 0xc6f7, 0xf7df, 0x6c99, 0x84f9, 0x3315, 0x3357,
0xb65d, 0x7d1c, 0xf7df, 0x8e0c, 0x8e0c, 0x8e0c, 0x8e0c, 0x8e0c, 0x8e0c, 0x8e0c, 0x8e0c,
0xf7df, 0x6479, 0x7cd9, 0x3314, 0x3357, 0xae3d, 0xae3d, 0xffdf, 0xffdf, 0xffdf, 0xffdf,
0xffdf, 0xffdf, 0xffdf, 0xffdf, 0xffdf, 0xffdf, 0x7cd9, 0x7cd8, 0x3314, 0x3357, 0x3357,
0x3357, 0x3356, 0x3356, 0x3336, 0x3336, 0x3336, 0x3335, 0x3315, 0x3315, 0x3315, 0x3315,
0x3314, 0x3314, 0x3315};
void Draw16x16Image(unsigned short *Screen, int x, int y, unsigned short *Img) {
Screen = &Screen[(320 * y) + x];
asm volatile (
" mov r0, #16 \n"
"1: \n"
#define FN() \
" ldr r1, [%[image]], #4 \n"\
" str r1, [%[screen]], #4 \n"
FN()
FN()
FN()
FN()
FN()
FN()
FN()
FN()
// Loop
" add %[screen], %[screen], #(640 - (16 * 2)) \n"
" subs r0, r0, #1 \n"
" bne 1b"
// output
: // none
// input
: [screen] "r" (Screen),
[image] "r" (Img)
// clobbered
: "r0", "r1", "cc" // r8 & flags
);
#undef FN
}
void Draw16x16Square(unsigned short *Screen, int x, int y, unsigned char r, unsigned char g, unsigned char b) {
Screen = &Screen[(320 * y) + x];
int color = (((((unsigned int )r) * 0x1f) >> 8) << 11) |
(((((unsigned int )g) * 0x3f) >> 8) << 5) |
((((unsigned int )b) * 0x1f) >> 8);
color = color | (color << 16);
asm volatile (
" mov r0, #16 \n"
"1: \n"
#define FN() \
" str %[color], [%[screen]], #4 \n"
FN()
FN()
FN()
FN()
FN()
FN()
FN()
FN()
// Loop
" add %[screen], %[screen], #(640 - (16 * 2)) \n"
" subs r0, r0, #1 \n"
" bne 1b"
// output
: // none
// input
: [screen] "r" (Screen),
[color] "r" (color)
// clobbered
: "r0", "cc" // r8 & flags
);
#undef FN
}
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