Remove some of the debug features to make the code more readable.
This commit is contained in:
Matthieu Bucchianeri
committed by
Ted Fried
Ted Fried
parent
671b6e8153
commit
1186841266
@@ -1,18 +1,18 @@
|
||||
#define BOOTROM_ADDR 0xCE000
|
||||
unsigned char BOOTROM[] = {
|
||||
85, 170, 4, 6, 80, 82, 250, 184, 21, 229, 232, 131, 4, 232, 139, 3,
|
||||
85, 170, 4, 6, 80, 82, 250, 184, 19, 229, 232, 129, 4, 232, 137, 3,
|
||||
115, 3, 233, 188, 0, 84, 88, 57, 224, 116, 39, 62, 161, 255, 255, 62,
|
||||
199, 6, 255, 255, 170, 170, 62, 128, 62, 0, 0, 170, 62, 163, 255, 255,
|
||||
116, 2, 235, 14, 80, 48, 192, 176, 64, 246, 224, 88, 116, 4, 48, 210,
|
||||
235, 8, 178, 1, 184, 87, 229, 232, 70, 4, 184, 131, 2, 146, 238, 184,
|
||||
124, 229, 232, 59, 4, 49, 192, 142, 192, 38, 161, 78, 0, 186, 132, 2,
|
||||
239, 232, 74, 4, 184, 39, 230, 232, 38, 4, 38, 161, 76, 0, 186, 134,
|
||||
2, 239, 232, 57, 4, 184, 43, 230, 232, 21, 4, 184, 145, 229, 232, 15,
|
||||
4, 184, 0, 192, 38, 163, 78, 0, 232, 35, 4, 184, 39, 230, 232, 255,
|
||||
3, 184, 214, 224, 38, 163, 76, 0, 232, 19, 4, 184, 43, 230, 232, 239,
|
||||
3, 184, 166, 229, 232, 233, 3, 184, 0, 192, 38, 163, 6, 1, 232, 253,
|
||||
3, 184, 39, 230, 232, 217, 3, 184, 138, 225, 38, 163, 4, 1, 232, 237,
|
||||
3, 184, 43, 230, 232, 201, 3, 184, 64, 0, 142, 192, 38, 254, 6, 117,
|
||||
235, 8, 178, 1, 184, 85, 229, 232, 68, 4, 184, 131, 2, 146, 238, 184,
|
||||
122, 229, 232, 57, 4, 49, 192, 142, 192, 38, 161, 78, 0, 186, 132, 2,
|
||||
239, 232, 72, 4, 184, 37, 230, 232, 36, 4, 38, 161, 76, 0, 186, 134,
|
||||
2, 239, 232, 55, 4, 184, 41, 230, 232, 19, 4, 184, 143, 229, 232, 13,
|
||||
4, 184, 0, 192, 38, 163, 78, 0, 232, 33, 4, 184, 37, 230, 232, 253,
|
||||
3, 184, 214, 224, 38, 163, 76, 0, 232, 17, 4, 184, 41, 230, 232, 237,
|
||||
3, 184, 164, 229, 232, 231, 3, 184, 0, 192, 38, 163, 6, 1, 232, 251,
|
||||
3, 184, 37, 230, 232, 215, 3, 184, 138, 225, 38, 163, 4, 1, 232, 235,
|
||||
3, 184, 41, 230, 232, 199, 3, 184, 64, 0, 142, 192, 38, 254, 6, 117,
|
||||
0, 251, 90, 88, 7, 203, 85, 86, 128, 250, 128, 116, 26, 137, 197, 137,
|
||||
214, 156, 14, 184, 49, 225, 80, 156, 186, 132, 2, 237, 80, 186, 134, 2,
|
||||
237, 80, 137, 232, 137, 242, 207, 128, 252, 21, 126, 5, 232, 113, 0, 235,
|
||||
@@ -20,85 +20,85 @@ unsigned char BOOTROM[] = {
|
||||
190, 49, 225, 86, 137, 222, 136, 227, 48, 255, 208, 227, 135, 222, 46, 255,
|
||||
164, 68, 225, 140, 197, 190, 64, 0, 142, 198, 38, 136, 38, 116, 0, 142,
|
||||
197, 137, 229, 139, 118, 8, 86, 115, 4, 157, 249, 235, 2, 157, 248, 94,
|
||||
93, 202, 2, 0, 47, 227, 154, 225, 174, 225, 63, 226, 238, 226, 112, 225,
|
||||
112, 225, 112, 225, 9, 227, 47, 227, 112, 225, 112, 225, 33, 227, 47, 227,
|
||||
112, 225, 112, 225, 47, 227, 47, 227, 112, 225, 112, 225, 47, 227, 49, 227,
|
||||
80, 184, 10, 230, 232, 25, 3, 88, 80, 136, 224, 48, 228, 232, 46, 3,
|
||||
184, 43, 230, 232, 10, 3, 88, 233, 180, 1, 0, 4, 16, 0, 0, 255,
|
||||
93, 202, 2, 0, 45, 227, 154, 225, 174, 225, 63, 226, 238, 226, 112, 225,
|
||||
112, 225, 112, 225, 9, 227, 45, 227, 112, 225, 112, 225, 31, 227, 45, 227,
|
||||
112, 225, 112, 225, 45, 227, 45, 227, 112, 225, 112, 225, 45, 227, 47, 227,
|
||||
80, 184, 8, 230, 232, 23, 3, 88, 80, 136, 224, 48, 228, 232, 44, 3,
|
||||
184, 41, 230, 232, 8, 3, 88, 233, 178, 1, 0, 4, 16, 0, 0, 255,
|
||||
255, 0, 200, 0, 0, 0, 0, 0, 63, 0, 6, 189, 64, 0, 142, 197,
|
||||
48, 228, 38, 134, 38, 116, 0, 132, 228, 116, 1, 249, 7, 195, 132, 192,
|
||||
117, 3, 233, 137, 1, 80, 48, 228, 137, 198, 83, 232, 140, 1, 137, 197,
|
||||
1, 240, 137, 222, 131, 211, 0, 232, 179, 1, 91, 88, 115, 3, 233, 113,
|
||||
117, 3, 233, 135, 1, 80, 48, 228, 137, 198, 83, 232, 138, 1, 137, 197,
|
||||
1, 240, 137, 222, 131, 211, 0, 232, 177, 1, 91, 88, 115, 3, 233, 111,
|
||||
1, 83, 81, 82, 87, 80, 137, 193, 48, 237, 137, 223, 186, 130, 2, 176,
|
||||
0, 238, 81, 137, 232, 137, 243, 177, 81, 232, 115, 2, 114, 64, 186, 128,
|
||||
2, 185, 80, 195, 235, 3, 232, 137, 2, 236, 60, 254, 224, 248, 117, 46,
|
||||
0, 238, 81, 137, 232, 137, 243, 177, 81, 232, 113, 2, 114, 64, 186, 128,
|
||||
2, 185, 80, 195, 235, 3, 232, 135, 2, 236, 60, 254, 224, 248, 117, 46,
|
||||
185, 0, 1, 82, 186, 131, 2, 236, 90, 132, 192, 252, 116, 4, 243, 109,
|
||||
235, 4, 237, 171, 226, 252, 237, 131, 197, 1, 131, 214, 0, 89, 226, 194,
|
||||
186, 130, 2, 176, 1, 238, 88, 95, 90, 89, 91, 233, 24, 1, 186, 130,
|
||||
2, 176, 1, 238, 89, 88, 40, 200, 95, 90, 89, 91, 233, 251, 0, 132,
|
||||
192, 117, 3, 233, 248, 0, 80, 48, 228, 137, 198, 83, 232, 251, 0, 137,
|
||||
197, 1, 240, 137, 222, 131, 211, 0, 232, 34, 1, 91, 88, 115, 3, 233,
|
||||
224, 0, 30, 83, 81, 82, 87, 80, 137, 193, 48, 237, 137, 223, 140, 192,
|
||||
186, 130, 2, 176, 1, 238, 88, 95, 90, 89, 91, 233, 22, 1, 186, 130,
|
||||
2, 176, 1, 238, 89, 88, 40, 200, 95, 90, 89, 91, 233, 249, 0, 132,
|
||||
192, 117, 3, 233, 246, 0, 80, 48, 228, 137, 198, 83, 232, 249, 0, 137,
|
||||
197, 1, 240, 137, 222, 131, 211, 0, 232, 32, 1, 91, 88, 115, 3, 233,
|
||||
222, 0, 30, 83, 81, 82, 87, 80, 137, 193, 48, 237, 137, 223, 140, 192,
|
||||
142, 216, 186, 130, 2, 176, 0, 238, 81, 137, 232, 137, 243, 177, 88, 232,
|
||||
221, 1, 114, 89, 186, 128, 2, 176, 254, 238, 185, 0, 1, 135, 247, 82,
|
||||
219, 1, 114, 89, 186, 128, 2, 176, 254, 238, 185, 0, 1, 135, 247, 82,
|
||||
186, 131, 2, 236, 90, 132, 192, 252, 116, 4, 243, 111, 235, 4, 173, 239,
|
||||
226, 252, 135, 254, 185, 80, 195, 235, 3, 232, 214, 1, 236, 60, 255, 225,
|
||||
248, 36, 31, 60, 5, 117, 38, 185, 80, 195, 235, 3, 232, 195, 1, 236,
|
||||
226, 252, 135, 254, 185, 80, 195, 235, 3, 232, 212, 1, 236, 60, 255, 225,
|
||||
248, 36, 31, 60, 5, 117, 38, 185, 80, 195, 235, 3, 232, 193, 1, 236,
|
||||
132, 192, 225, 248, 116, 23, 131, 197, 1, 131, 214, 0, 89, 226, 169, 186,
|
||||
130, 2, 176, 1, 238, 88, 95, 90, 89, 91, 31, 235, 105, 186, 130, 2,
|
||||
176, 1, 238, 89, 88, 40, 200, 95, 90, 89, 91, 31, 235, 76, 132, 192,
|
||||
116, 76, 80, 48, 228, 137, 197, 83, 232, 79, 0, 1, 232, 131, 211, 0,
|
||||
232, 122, 0, 91, 88, 114, 59, 235, 61, 182, 15, 6, 184, 64, 0, 142,
|
||||
192, 38, 138, 22, 117, 0, 7, 254, 194, 181, 254, 177, 255, 49, 192, 248,
|
||||
195, 80, 83, 232, 36, 0, 232, 84, 0, 91, 88, 114, 21, 235, 23, 235,
|
||||
21, 180, 3, 232, 94, 0, 135, 209, 248, 195, 180, 170, 249, 195, 180, 1,
|
||||
249, 195, 180, 4, 249, 195, 48, 228, 248, 195, 49, 192, 49, 219, 82, 81,
|
||||
82, 136, 200, 36, 192, 209, 224, 209, 224, 136, 232, 185, 16, 0, 247, 225,
|
||||
90, 136, 241, 48, 237, 1, 200, 177, 63, 247, 225, 89, 81, 48, 237, 128,
|
||||
225, 63, 73, 1, 200, 131, 210, 0, 137, 211, 89, 90, 195, 81, 82, 232,
|
||||
18, 0, 57, 211, 114, 10, 119, 4, 57, 200, 114, 4, 249, 90, 89, 195,
|
||||
248, 90, 89, 195, 186, 15, 0, 185, 16, 188, 195, 80, 30, 83, 81, 82,
|
||||
86, 184, 0, 192, 142, 216, 186, 130, 2, 176, 1, 238, 49, 201, 186, 232,
|
||||
3, 180, 134, 205, 21, 186, 128, 2, 176, 255, 185, 80, 0, 238, 226, 253,
|
||||
186, 130, 2, 176, 0, 238, 190, 71, 228, 185, 1, 0, 180, 1, 232, 79,
|
||||
0, 114, 54, 190, 77, 228, 185, 5, 0, 180, 1, 232, 66, 0, 114, 41,
|
||||
187, 100, 0, 190, 83, 228, 185, 1, 0, 180, 1, 232, 50, 0, 190, 89,
|
||||
228, 185, 1, 0, 180, 0, 232, 39, 0, 115, 14, 156, 49, 201, 186, 232,
|
||||
3, 180, 134, 205, 21, 157, 75, 117, 218, 94, 90, 89, 91, 31, 114, 8,
|
||||
184, 200, 229, 232, 122, 0, 88, 195, 184, 235, 229, 232, 114, 0, 88, 195,
|
||||
186, 128, 2, 176, 255, 238, 81, 185, 6, 0, 252, 172, 238, 226, 252, 185,
|
||||
8, 0, 236, 60, 255, 225, 251, 89, 56, 224, 118, 3, 249, 235, 4, 248,
|
||||
236, 226, 253, 176, 255, 238, 195, 64, 0, 0, 0, 0, 149, 72, 0, 0,
|
||||
1, 170, 135, 119, 0, 0, 0, 0, 1, 105, 64, 0, 0, 0, 1, 186,
|
||||
128, 2, 80, 176, 255, 238, 136, 200, 136, 252, 239, 88, 134, 216, 239, 134,
|
||||
216, 180, 1, 239, 185, 8, 0, 236, 60, 255, 225, 251, 132, 192, 116, 1,
|
||||
249, 195, 81, 82, 49, 201, 186, 1, 0, 180, 134, 205, 21, 90, 89, 195,
|
||||
156, 30, 83, 86, 137, 198, 184, 0, 192, 142, 216, 180, 14, 49, 219, 252,
|
||||
172, 8, 192, 116, 4, 205, 16, 235, 247, 94, 91, 31, 157, 195, 156, 30,
|
||||
83, 81, 82, 86, 137, 194, 184, 0, 192, 142, 216, 49, 219, 252, 137, 214,
|
||||
177, 12, 211, 238, 131, 230, 15, 138, 132, 5, 229, 180, 14, 205, 16, 137,
|
||||
214, 177, 8, 211, 238, 131, 230, 15, 138, 132, 5, 229, 180, 14, 205, 16,
|
||||
137, 214, 177, 4, 211, 238, 131, 230, 15, 138, 132, 5, 229, 180, 14, 205,
|
||||
16, 137, 214, 131, 230, 15, 138, 132, 5, 229, 180, 14, 205, 16, 94, 90,
|
||||
89, 91, 31, 157, 195, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 65,
|
||||
66, 67, 68, 69, 70, 66, 111, 111, 116, 82, 79, 77, 32, 102, 111, 114,
|
||||
32, 88, 84, 77, 97, 120, 32, 118, 49, 46, 48, 13, 10, 67, 111, 112,
|
||||
121, 114, 105, 103, 104, 116, 32, 40, 99, 41, 32, 50, 48, 50, 53, 32,
|
||||
77, 97, 116, 116, 104, 105, 101, 117, 32, 66, 117, 99, 99, 104, 105, 97,
|
||||
110, 101, 114, 105, 13, 10, 0, 67, 80, 85, 32, 115, 117, 112, 112, 111,
|
||||
114, 116, 115, 32, 73, 78, 83, 47, 79, 85, 84, 83, 32, 105, 110, 115,
|
||||
116, 114, 117, 99, 116, 105, 111, 110, 115, 13, 10, 0, 79, 108, 100, 32,
|
||||
73, 78, 84, 49, 51, 104, 32, 86, 101, 99, 116, 111, 114, 32, 61, 32,
|
||||
0, 78, 101, 119, 32, 73, 78, 84, 49, 51, 104, 32, 86, 101, 99, 116,
|
||||
111, 114, 32, 61, 32, 0, 78, 101, 119, 32, 70, 105, 120, 101, 100, 32,
|
||||
68, 105, 115, 107, 32, 80, 97, 114, 97, 109, 101, 116, 101, 114, 32, 84,
|
||||
97, 98, 108, 101, 32, 61, 32, 0, 83, 68, 32, 67, 97, 114, 100, 32,
|
||||
105, 110, 105, 116, 105, 97, 108, 105, 122, 101, 100, 32, 115, 117, 99, 99,
|
||||
101, 115, 115, 102, 117, 108, 108, 121, 13, 10, 0, 83, 68, 32, 67, 97,
|
||||
114, 100, 32, 102, 97, 105, 108, 101, 100, 32, 116, 111, 32, 105, 110, 105,
|
||||
116, 105, 97, 108, 105, 122, 101, 13, 10, 0, 85, 110, 115, 117, 112, 112,
|
||||
111, 114, 116, 101, 100, 32, 73, 78, 84, 49, 51, 104, 32, 70, 117, 110,
|
||||
99, 116, 105, 111, 110, 32, 0, 58, 0, 32, 0, 13, 10, 0, 0, 0,
|
||||
130, 2, 176, 1, 238, 88, 95, 90, 89, 91, 31, 235, 103, 186, 130, 2,
|
||||
176, 1, 238, 89, 88, 40, 200, 95, 90, 89, 91, 31, 235, 74, 132, 192,
|
||||
116, 74, 80, 48, 228, 137, 197, 83, 232, 77, 0, 1, 232, 131, 211, 0,
|
||||
232, 120, 0, 91, 88, 114, 57, 235, 59, 182, 15, 6, 184, 64, 0, 142,
|
||||
192, 38, 138, 22, 117, 0, 7, 181, 254, 177, 255, 49, 192, 248, 195, 80,
|
||||
83, 232, 36, 0, 232, 84, 0, 91, 88, 114, 21, 235, 23, 235, 21, 180,
|
||||
3, 232, 94, 0, 135, 209, 248, 195, 180, 170, 249, 195, 180, 1, 249, 195,
|
||||
180, 4, 249, 195, 48, 228, 248, 195, 49, 192, 49, 219, 82, 81, 82, 136,
|
||||
200, 36, 192, 209, 224, 209, 224, 136, 232, 185, 16, 0, 247, 225, 90, 136,
|
||||
241, 48, 237, 1, 200, 177, 63, 247, 225, 89, 81, 48, 237, 128, 225, 63,
|
||||
73, 1, 200, 131, 210, 0, 137, 211, 89, 90, 195, 81, 82, 232, 18, 0,
|
||||
57, 211, 114, 10, 119, 4, 57, 200, 114, 4, 249, 90, 89, 195, 248, 90,
|
||||
89, 195, 186, 15, 0, 185, 16, 188, 195, 80, 30, 83, 81, 82, 86, 184,
|
||||
0, 192, 142, 216, 186, 130, 2, 176, 1, 238, 49, 201, 186, 232, 3, 180,
|
||||
134, 205, 21, 186, 128, 2, 176, 255, 185, 80, 0, 238, 226, 253, 186, 130,
|
||||
2, 176, 0, 238, 190, 69, 228, 185, 1, 0, 180, 1, 232, 79, 0, 114,
|
||||
54, 190, 75, 228, 185, 5, 0, 180, 1, 232, 66, 0, 114, 41, 187, 100,
|
||||
0, 190, 81, 228, 185, 1, 0, 180, 1, 232, 50, 0, 190, 87, 228, 185,
|
||||
1, 0, 180, 0, 232, 39, 0, 115, 14, 156, 49, 201, 186, 232, 3, 180,
|
||||
134, 205, 21, 157, 75, 117, 218, 94, 90, 89, 91, 31, 114, 8, 184, 198,
|
||||
229, 232, 122, 0, 88, 195, 184, 233, 229, 232, 114, 0, 88, 195, 186, 128,
|
||||
2, 176, 255, 238, 81, 185, 6, 0, 252, 172, 238, 226, 252, 185, 8, 0,
|
||||
236, 60, 255, 225, 251, 89, 56, 224, 118, 3, 249, 235, 4, 248, 236, 226,
|
||||
253, 176, 255, 238, 195, 64, 0, 0, 0, 0, 149, 72, 0, 0, 1, 170,
|
||||
135, 119, 0, 0, 0, 0, 1, 105, 64, 0, 0, 0, 1, 186, 128, 2,
|
||||
80, 176, 255, 238, 136, 200, 136, 252, 239, 88, 134, 216, 239, 134, 216, 180,
|
||||
1, 239, 185, 8, 0, 236, 60, 255, 225, 251, 132, 192, 116, 1, 249, 195,
|
||||
81, 82, 49, 201, 186, 1, 0, 180, 134, 205, 21, 90, 89, 195, 156, 30,
|
||||
83, 86, 137, 198, 184, 0, 192, 142, 216, 180, 14, 49, 219, 252, 172, 8,
|
||||
192, 116, 4, 205, 16, 235, 247, 94, 91, 31, 157, 195, 156, 30, 83, 81,
|
||||
82, 86, 137, 194, 184, 0, 192, 142, 216, 49, 219, 252, 137, 214, 177, 12,
|
||||
211, 238, 131, 230, 15, 138, 132, 3, 229, 180, 14, 205, 16, 137, 214, 177,
|
||||
8, 211, 238, 131, 230, 15, 138, 132, 3, 229, 180, 14, 205, 16, 137, 214,
|
||||
177, 4, 211, 238, 131, 230, 15, 138, 132, 3, 229, 180, 14, 205, 16, 137,
|
||||
214, 131, 230, 15, 138, 132, 3, 229, 180, 14, 205, 16, 94, 90, 89, 91,
|
||||
31, 157, 195, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 65, 66, 67,
|
||||
68, 69, 70, 66, 111, 111, 116, 82, 79, 77, 32, 102, 111, 114, 32, 88,
|
||||
84, 77, 97, 120, 32, 118, 49, 46, 48, 13, 10, 67, 111, 112, 121, 114,
|
||||
105, 103, 104, 116, 32, 40, 99, 41, 32, 50, 48, 50, 53, 32, 77, 97,
|
||||
116, 116, 104, 105, 101, 117, 32, 66, 117, 99, 99, 104, 105, 97, 110, 101,
|
||||
114, 105, 13, 10, 0, 67, 80, 85, 32, 115, 117, 112, 112, 111, 114, 116,
|
||||
115, 32, 73, 78, 83, 47, 79, 85, 84, 83, 32, 105, 110, 115, 116, 114,
|
||||
117, 99, 116, 105, 111, 110, 115, 13, 10, 0, 79, 108, 100, 32, 73, 78,
|
||||
84, 49, 51, 104, 32, 86, 101, 99, 116, 111, 114, 32, 61, 32, 0, 78,
|
||||
101, 119, 32, 73, 78, 84, 49, 51, 104, 32, 86, 101, 99, 116, 111, 114,
|
||||
32, 61, 32, 0, 78, 101, 119, 32, 70, 105, 120, 101, 100, 32, 68, 105,
|
||||
115, 107, 32, 80, 97, 114, 97, 109, 101, 116, 101, 114, 32, 84, 97, 98,
|
||||
108, 101, 32, 61, 32, 0, 83, 68, 32, 67, 97, 114, 100, 32, 105, 110,
|
||||
105, 116, 105, 97, 108, 105, 122, 101, 100, 32, 115, 117, 99, 99, 101, 115,
|
||||
115, 102, 117, 108, 108, 121, 13, 10, 0, 83, 68, 32, 67, 97, 114, 100,
|
||||
32, 102, 97, 105, 108, 101, 100, 32, 116, 111, 32, 105, 110, 105, 116, 105,
|
||||
97, 108, 105, 122, 101, 13, 10, 0, 85, 110, 115, 117, 112, 112, 111, 114,
|
||||
116, 101, 100, 32, 73, 78, 84, 49, 51, 104, 32, 70, 117, 110, 99, 116,
|
||||
105, 111, 110, 32, 0, 58, 0, 32, 0, 13, 10, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
@@ -127,4 +127,4 @@ unsigned char BOOTROM[] = {
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 62};
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 148};
|
||||
@@ -14,40 +14,26 @@ cpu 8086 ; ensure we remain compatible with 8086
|
||||
|
||||
%define FIXED_DISK_0 (0)
|
||||
%define FIXED_DISK_1 (1)
|
||||
%define FLOPPY_DISK (-0x80)
|
||||
|
||||
;
|
||||
; Whether we will emulate the 1st or 2nd disk.
|
||||
;
|
||||
%define DISK_NUMBER FIXED_DISK_0
|
||||
|
||||
%define EMULATE_FIXED_DISK (DISK_NUMBER >= FIXED_DISK_0)
|
||||
|
||||
;
|
||||
; Whether we will use our own bootstrap code.
|
||||
;
|
||||
;%define USE_BOOTSTRAP
|
||||
|
||||
;
|
||||
; The properties of our emulated disk.
|
||||
;
|
||||
%if EMULATE_FIXED_DISK
|
||||
%define NUM_CYLINDERS (1024)
|
||||
%define NUM_HEADS (16)
|
||||
%define SECTORS_PER_TRACK (63)
|
||||
; the last cylinder is reserved on fixed disks
|
||||
%define NUM_SECTORS (NUM_HEADS * (NUM_CYLINDERS - 1) * SECTORS_PER_TRACK)
|
||||
%else
|
||||
%define NUM_HEADS (2)
|
||||
%define SECTORS_PER_TRACK (18)
|
||||
%define NUM_CYLINDERS (80)
|
||||
%define NUM_SECTORS (NUM_HEADS * NUM_CYLINDERS * SECTORS_PER_TRACK)
|
||||
%endif
|
||||
|
||||
; TODO: (feature) the BIOS only specifies 16 heads, however the INT13h functions could use 256.
|
||||
%if NUM_HEADS > 16
|
||||
%error NUM_HEADS must be 4 bits
|
||||
%endif
|
||||
%if EMULATE_FIXED_DISK && SECTORS_PER_TRACK > 63
|
||||
%if SECTORS_PER_TRACK > 63
|
||||
%error SECTORS_PER_TRACK must be 6 bits
|
||||
%endif
|
||||
%if NUM_CYLINDERS > 1024
|
||||
@@ -162,7 +148,6 @@ entry:
|
||||
mov ax, newline
|
||||
call print_string
|
||||
|
||||
%if EMULATE_FIXED_DISK
|
||||
;
|
||||
; Install our fixed disk parameter table.
|
||||
; For the 1st disk, it is stored in the interrupt vector table, at vector 41h.
|
||||
@@ -183,34 +168,12 @@ entry:
|
||||
mov ax, newline
|
||||
call print_string
|
||||
|
||||
%ifdef USE_BOOTSTRAP
|
||||
;
|
||||
; Install our BIOS INT18h hook into the interrupt vector table.
|
||||
;
|
||||
.install_18h_vector:
|
||||
mov ax, new_18h_msg
|
||||
call print_string
|
||||
|
||||
mov ax, ROM_SEGMENT
|
||||
mov es:[0x18*4+2], ax ; store segment
|
||||
call print_hex
|
||||
mov ax, colon
|
||||
call print_string
|
||||
mov ax, int18h_entry
|
||||
mov es:[0x18*4], ax ; store offset
|
||||
call print_hex
|
||||
mov ax, newline
|
||||
call print_string
|
||||
%else
|
||||
|
||||
;
|
||||
; Increment the number of fixed disks in the BIOS Data Area.
|
||||
;
|
||||
mov ax, 0x40 ; BIOS data area
|
||||
mov es, ax
|
||||
inc byte es:[0x75] ; HDNUM
|
||||
%endif
|
||||
%endif
|
||||
|
||||
.skip:
|
||||
sti
|
||||
@@ -259,19 +222,6 @@ int13h_entry:
|
||||
; This is not an operation for the SD Card. Forward to the BIOS INT 13h handler.
|
||||
;
|
||||
.forward_to_bios:
|
||||
%ifdef EXTRA_DEBUG
|
||||
push ax
|
||||
mov ax, forward_msg
|
||||
call print_string
|
||||
pop ax
|
||||
push ax
|
||||
mov al, ah
|
||||
xor ah, ah
|
||||
call print_hex
|
||||
mov ax, newline
|
||||
call print_string
|
||||
pop ax
|
||||
%endif
|
||||
mov TEMP0, ax ; save ax
|
||||
mov TEMP1, dx ; save dx
|
||||
pushf ; setup for iret from INT 13h handler
|
||||
@@ -306,11 +256,7 @@ int13h_entry:
|
||||
; This is an operation for the SD Card. Use our own INT 13h logic.
|
||||
;
|
||||
.check_function:
|
||||
%if EMULATE_FIXED_DISK
|
||||
cmp ah, 0x15 ; is valid function?
|
||||
%else
|
||||
cmp ah, 0x16 ; is valid function?
|
||||
%endif
|
||||
jle .prepare_call
|
||||
call func_unsupported
|
||||
jmp .update_bda
|
||||
@@ -405,9 +351,6 @@ func_table:
|
||||
dw func_unsupported ; diagnostics
|
||||
dw func_10_is_ready ; diagnostics
|
||||
dw func_15_read_size
|
||||
%if !EMULATE_FIXED_DISK
|
||||
dw func_10_is_ready ; detect_change
|
||||
%endif
|
||||
|
||||
func_unsupported:
|
||||
%ifdef DEBUG
|
||||
@@ -807,29 +750,9 @@ func_08_read_params:
|
||||
mov es, ax
|
||||
mov dl, es:[0x75] ; HDNUM
|
||||
pop es
|
||||
%ifndef USE_BOOTSTRAP
|
||||
inc dl ; we never added ourselves
|
||||
%endif
|
||||
|
||||
%if EMULATE_FIXED_DISK
|
||||
; the last cylinder is reserved on fixed disks
|
||||
mov ch, ((NUM_CYLINDERS - 2) & 0xff)
|
||||
mov cl, (((NUM_CYLINDERS - 2) & 0x300) >> 2) | SECTORS_PER_TRACK
|
||||
|
||||
%else
|
||||
mov ch, ((NUM_CYLINDERS - 1) & 0xff)
|
||||
mov cl, (((NUM_CYLINDERS - 1) & 0x300) >> 2) | SECTORS_PER_TRACK
|
||||
|
||||
; diskette drive parameters table, it is stored in the interrupt vector table, at vector 1Eh.
|
||||
xor ax, ax ; INT vector segment
|
||||
mov es, ax
|
||||
mov ax, es:[0x1e*4] ; offset
|
||||
mov di, ax
|
||||
mov ax, es:[0x1e*4+2] ; segment
|
||||
mov es, ax
|
||||
mov bx, 0x4 ; 1.44 MB
|
||||
%endif
|
||||
|
||||
xor ax, ax
|
||||
clc
|
||||
.exit:
|
||||
@@ -885,13 +808,9 @@ func_15_read_size:
|
||||
%ifdef DEBUG
|
||||
call debug_handler
|
||||
%endif
|
||||
%if EMULATE_FIXED_DISK
|
||||
mov ah, 0x3 ; drive present
|
||||
call get_max_lba
|
||||
xchg cx, dx
|
||||
%else
|
||||
mov ah, 0x1 ; diskette drive present
|
||||
%endif
|
||||
clc
|
||||
ret
|
||||
|
||||
@@ -918,36 +837,6 @@ succeeded:
|
||||
clc
|
||||
ret
|
||||
|
||||
%ifdef USE_BOOTSTRAP
|
||||
;
|
||||
; INT 18h entry point.
|
||||
;
|
||||
int18h_entry:
|
||||
xor ax, ax
|
||||
mov ds, ax
|
||||
mov es, ax
|
||||
mov cx, 256
|
||||
mov di, 0x7c00
|
||||
rep stosw
|
||||
mov ax, 0x201 ; read 1 sector
|
||||
mov dx, 0x80+DISK_NUMBER
|
||||
mov cx, 1 ; sector 1
|
||||
mov bx, 0x7c00
|
||||
int 0x13
|
||||
cmp word [0x7c00+510], 0xaa55
|
||||
jne .no_boot
|
||||
mov ax, boot_msg
|
||||
call print_string
|
||||
jmp 0:0x7c00
|
||||
.no_boot:
|
||||
mov ax, no_boot_msg
|
||||
call print_string
|
||||
sti
|
||||
.loop:
|
||||
hlt
|
||||
jmp .loop
|
||||
%endif
|
||||
|
||||
;
|
||||
; Disk utilities
|
||||
;
|
||||
@@ -967,12 +856,10 @@ compute_lba:
|
||||
push dx
|
||||
push cx
|
||||
push dx
|
||||
%if EMULATE_FIXED_DISK
|
||||
mov al, cl
|
||||
and al, 0xc0
|
||||
shl ax, 1
|
||||
shl ax, 1
|
||||
%endif
|
||||
mov al, ch ; cylinder
|
||||
mov cx, NUM_HEADS
|
||||
mul cx ; cylinder * hpc
|
||||
@@ -985,9 +872,7 @@ compute_lba:
|
||||
pop cx
|
||||
push cx
|
||||
xor ch, ch
|
||||
%if EMULATE_FIXED_DISK
|
||||
and cl, 0x3f
|
||||
%endif
|
||||
dec cx ; sector - 1
|
||||
add ax, cx ; (cylinder * hpc + head) * spt + (sector - 1)
|
||||
adc dx, 0 ; carry
|
||||
@@ -1270,11 +1155,6 @@ new_fdpt_msg db 'New Fixed Disk Parameter Table = ', 0
|
||||
init_ok_msg db 'SD Card initialized successfully', 0xD, 0xA, 0
|
||||
init_error_msg db 'SD Card failed to initialize', 0xD, 0xA, 0
|
||||
unsupported_msg db 'Unsupported INT13h Function ', 0
|
||||
%ifdef USE_BOOTSTRAP
|
||||
new_18h_msg db 'New INT18h Vector = ', 0
|
||||
boot_msg db 'Booting from SD Card...', 0xD, 0xA, 0
|
||||
no_boot_msg db 'Not bootable', 0xD, 0xA, 0
|
||||
%endif
|
||||
colon db ':', 0
|
||||
space db ' ', 0
|
||||
newline db 0xD, 0xA, 0
|
||||
@@ -1294,10 +1174,6 @@ sd_token_msg db 'Received token', 0xD, 0xA, 0
|
||||
sd_status_msg db 'Received status ', 0
|
||||
sd_idle_msg db 'Received idle', 0xD, 0xA, 0
|
||||
%endif
|
||||
|
||||
%ifdef EXTRA_DEBUG
|
||||
forward_msg db 'Forward to BIOS INT13h handler ', 0
|
||||
%endif
|
||||
%endif
|
||||
|
||||
%ifndef AS_COM_PROGRAM
|
||||
|
||||
Reference in New Issue
Block a user