Add INT13h handling for SD Card.
This commit is contained in:
Matthieu Bucchianeri
committed by
Ted Fried
Ted Fried
parent
d2f95788e5
commit
1e800f94c5
@@ -39,12 +39,13 @@
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// - Refactor SD card I/O
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// - Add support for 16-bit EMS page offsets
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//
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// Revision 8 01/18/2024
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// - Add support for BIOS ROM extension (Boot ROM)
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//
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// Revision 8 01/20/2025
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// - Added chip select for a second PSRAM to allow access to 16 MB of Expanded RAM
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//
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// Revision 9 01/26/2024
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// - Add support for BIOS ROM extension (Boot ROM)
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// - Add scrach registers for Boot ROM hooking
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//
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//------------------------------------------------------------------------
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//
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// Copyright (c) 2024 Ted Fried
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@@ -171,7 +172,7 @@
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#define EMS_TOTAL_SIZE (16*1024*1024)
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#define SD_BASE 0x280 // Must be a multiple of 2.
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#define SD_BASE 0x280 // Must be a multiple of 8.
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// --------------------------------------------------------------------------------------------------
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@@ -196,6 +197,7 @@ uint8_t spi_shift_out =0;
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uint8_t sd_spi_datain =0;
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uint32_t sd_spi_cs_n = 0x0;
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uint32_t sd_spi_dataout =0;
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uint8_t sd_scratch_register[4] = {0, 0, 0, 0};
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uint8_t XTMax_MEM_Response_Array[16];
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@@ -674,12 +676,16 @@ inline void IO_Read_Cycle() {
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}
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else if ((isa_address&0x0FFE)==SD_BASE ) { // Location of SD Card registers
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else if ((isa_address&0x0FF8)==SD_BASE ) { // Location of SD Card registers
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// Both registers serve the same function (to allow use of Word I/O)
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sd_spi_dataout = 0xff;
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SD_SPI_Cycle();
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isa_data_out = sd_spi_datain;
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switch (isa_address) {
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case SD_BASE: // First two registers serve the same function (to allow use of Word I/O)
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case SD_BASE+1: sd_spi_dataout = 0xff; SD_SPI_Cycle(); isa_data_out = sd_spi_datain; break;
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case SD_BASE+4: isa_data_out = sd_scratch_register[0]; break;
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case SD_BASE+5: isa_data_out = sd_scratch_register[1]; break;
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case SD_BASE+6: isa_data_out = sd_scratch_register[2]; break;
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case SD_BASE+7: isa_data_out = sd_scratch_register[3]; break;
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}
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GPIO7_DR = GPIO7_DATA_OUT_UNSCRAMBLE + MUX_ADDR_n_LOW + CHRDY_OUT_LOW + trigger_out;
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GPIO8_DR = sd_pin_outputs + MUX_DATA_n_HIGH + CHRDY_OE_n_HIGH + DATA_OE_n_LOW;
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@@ -727,7 +733,7 @@ inline void IO_Write_Cycle() {
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}
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else if ((isa_address&0x0FFC)==SD_BASE ) { // Location of SD Card registers
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else if ((isa_address&0x0FF8)==SD_BASE ) { // Location of SD Card registers
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GPIO7_DR = GPIO7_DATA_OUT_UNSCRAMBLE + MUX_ADDR_n_HIGH + CHRDY_OUT_LOW + trigger_out;
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GPIO8_DR = sd_pin_outputs + MUX_DATA_n_LOW + CHRDY_OE_n_HIGH + DATA_OE_n_HIGH;
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@@ -739,6 +745,10 @@ inline void IO_Write_Cycle() {
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case SD_BASE: // First two registers serve the same function (to allow use of Word I/O)
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case SD_BASE+1: sd_spi_dataout = data_in; SD_SPI_Cycle(); break;
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case SD_BASE+2: sd_spi_cs_n = data_in&0x1; break;
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case SD_BASE+4: sd_scratch_register[0] = data_in; break;
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case SD_BASE+5: sd_scratch_register[1] = data_in; break;
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case SD_BASE+6: sd_scratch_register[2] = data_in; break;
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case SD_BASE+7: sd_scratch_register[3] = data_in; break;
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}
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//gpio9_int = GPIO9_DR;
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@@ -1,9 +1,97 @@
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#define BOOTROM_ADDR 0xCE000
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unsigned char BOOTROM[] = {
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85, 170, 4, 184, 0, 192, 142, 216, 142, 192, 190, 33, 224, 232, 1, 0,
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203, 83, 49, 219, 172, 8, 192, 116, 6, 180, 14, 205, 16, 235, 245, 91,
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195, 66, 111, 111, 116, 82, 79, 77, 32, 102, 111, 114, 32, 88, 84, 77,
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97, 120, 32, 118, 48, 46, 49, 13, 10, 0, 0, 0, 0, 0, 0, 0,
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85, 170, 4, 6, 80, 82, 250, 184, 200, 228, 232, 54, 4, 232, 57, 3,
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115, 3, 233, 130, 0, 184, 10, 229, 232, 40, 4, 49, 192, 142, 192, 38,
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161, 78, 0, 186, 132, 2, 239, 232, 55, 4, 184, 181, 229, 232, 19, 4,
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38, 161, 76, 0, 186, 134, 2, 239, 232, 38, 4, 184, 185, 229, 232, 2,
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4, 184, 31, 229, 232, 252, 3, 184, 0, 192, 38, 163, 78, 0, 232, 16,
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4, 184, 181, 229, 232, 236, 3, 184, 156, 224, 38, 163, 76, 0, 232, 0,
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4, 184, 185, 229, 232, 220, 3, 184, 52, 229, 232, 214, 3, 184, 0, 192,
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38, 163, 6, 1, 232, 234, 3, 184, 181, 229, 232, 198, 3, 184, 81, 225,
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38, 163, 4, 1, 232, 218, 3, 184, 185, 229, 232, 182, 3, 184, 64, 0,
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142, 192, 38, 254, 6, 117, 0, 251, 90, 88, 7, 203, 85, 86, 128, 250,
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128, 116, 28, 137, 197, 137, 214, 156, 14, 184, 189, 224, 80, 156, 186, 132,
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2, 237, 80, 186, 134, 2, 237, 80, 137, 232, 137, 242, 207, 235, 56, 128,
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252, 21, 126, 5, 232, 112, 0, 235, 34, 128, 252, 1, 116, 10, 128, 252,
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21, 116, 5, 190, 235, 224, 235, 3, 190, 247, 224, 86, 83, 136, 227, 48,
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255, 208, 227, 137, 222, 91, 46, 255, 164, 11, 225, 6, 190, 64, 0, 142,
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198, 38, 136, 38, 116, 0, 7, 137, 229, 139, 118, 8, 156, 131, 230, 254,
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157, 131, 214, 0, 86, 157, 94, 93, 202, 2, 0, 221, 226, 97, 225, 117,
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225, 248, 225, 156, 226, 55, 225, 55, 225, 55, 225, 183, 226, 221, 226, 55,
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225, 55, 225, 207, 226, 221, 226, 55, 225, 55, 225, 221, 226, 221, 226, 55,
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225, 55, 225, 221, 226, 223, 226, 80, 184, 152, 229, 232, 5, 3, 88, 80,
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136, 224, 48, 228, 232, 26, 3, 184, 185, 229, 232, 246, 2, 88, 233, 155,
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1, 0, 4, 16, 0, 0, 255, 255, 0, 200, 0, 0, 0, 0, 0, 63,
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0, 6, 189, 64, 0, 142, 197, 48, 228, 38, 134, 38, 116, 0, 132, 228,
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116, 1, 249, 7, 195, 132, 192, 117, 3, 233, 112, 1, 80, 48, 228, 137,
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198, 83, 232, 115, 1, 137, 197, 1, 240, 137, 222, 131, 211, 0, 232, 154,
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1, 91, 88, 115, 3, 233, 88, 1, 83, 81, 82, 87, 80, 137, 193, 48,
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237, 137, 223, 186, 130, 2, 176, 0, 238, 81, 137, 232, 137, 243, 177, 81,
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232, 90, 2, 114, 50, 186, 128, 2, 185, 232, 3, 235, 3, 232, 117, 2,
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236, 60, 254, 224, 248, 117, 32, 185, 0, 1, 252, 237, 171, 226, 252, 237,
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131, 197, 1, 131, 214, 0, 89, 226, 208, 186, 130, 2, 176, 1, 238, 88,
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95, 90, 89, 91, 233, 13, 1, 186, 130, 2, 176, 1, 238, 89, 88, 40,
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200, 95, 90, 89, 91, 233, 240, 0, 132, 192, 117, 3, 233, 237, 0, 80,
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48, 228, 137, 198, 83, 232, 240, 0, 137, 197, 1, 240, 137, 222, 131, 211,
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0, 232, 23, 1, 91, 88, 115, 3, 233, 213, 0, 30, 83, 81, 82, 87,
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80, 137, 193, 48, 237, 137, 223, 140, 192, 142, 216, 186, 130, 2, 176, 0,
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238, 81, 137, 232, 137, 243, 177, 88, 232, 210, 1, 114, 78, 186, 128, 2,
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176, 254, 238, 185, 0, 1, 135, 247, 252, 173, 239, 226, 252, 135, 254, 186,
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128, 2, 185, 196, 9, 235, 3, 232, 219, 1, 236, 60, 255, 225, 248, 36,
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31, 60, 5, 117, 38, 185, 196, 9, 235, 3, 232, 200, 1, 236, 132, 192,
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225, 248, 116, 23, 131, 197, 1, 131, 214, 0, 89, 226, 180, 186, 130, 2,
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176, 1, 238, 88, 95, 90, 89, 91, 31, 235, 105, 186, 130, 2, 176, 1,
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238, 89, 88, 40, 200, 95, 90, 89, 91, 31, 235, 76, 132, 192, 116, 76,
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80, 48, 228, 137, 197, 83, 232, 79, 0, 1, 232, 131, 211, 0, 232, 122,
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0, 91, 88, 114, 59, 235, 61, 182, 15, 6, 184, 64, 0, 142, 192, 38,
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138, 22, 117, 0, 7, 254, 194, 181, 254, 177, 255, 49, 192, 248, 195, 80,
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83, 232, 36, 0, 232, 84, 0, 91, 88, 114, 21, 235, 23, 235, 21, 180,
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3, 232, 94, 0, 135, 209, 248, 195, 180, 170, 249, 195, 180, 1, 249, 195,
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180, 4, 249, 195, 48, 228, 248, 195, 49, 192, 49, 219, 82, 81, 82, 136,
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200, 36, 192, 209, 224, 209, 224, 136, 232, 185, 16, 0, 247, 225, 90, 136,
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241, 48, 237, 1, 200, 177, 63, 247, 225, 89, 81, 48, 237, 128, 225, 63,
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73, 1, 200, 131, 210, 0, 137, 211, 89, 90, 195, 81, 82, 232, 18, 0,
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57, 211, 114, 10, 119, 4, 57, 200, 114, 4, 249, 90, 89, 195, 248, 90,
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89, 195, 186, 15, 0, 185, 16, 188, 195, 80, 30, 83, 81, 82, 86, 184,
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0, 192, 142, 216, 186, 130, 2, 176, 1, 238, 49, 201, 186, 232, 3, 180,
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134, 205, 21, 186, 128, 2, 176, 255, 185, 80, 0, 238, 226, 253, 186, 130,
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2, 176, 0, 238, 190, 245, 227, 185, 1, 0, 180, 1, 232, 79, 0, 114,
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54, 190, 251, 227, 185, 5, 0, 180, 1, 232, 66, 0, 114, 41, 187, 100,
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0, 190, 1, 228, 185, 1, 0, 180, 1, 232, 50, 0, 190, 7, 228, 185,
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1, 0, 180, 0, 232, 39, 0, 115, 14, 156, 49, 201, 186, 232, 3, 180,
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134, 205, 21, 157, 75, 117, 218, 94, 90, 89, 91, 31, 114, 8, 184, 86,
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229, 232, 127, 0, 88, 195, 184, 121, 229, 232, 119, 0, 88, 195, 186, 128,
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2, 176, 255, 238, 81, 185, 6, 0, 252, 172, 238, 226, 252, 185, 8, 0,
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236, 60, 255, 225, 251, 89, 56, 224, 118, 3, 249, 235, 4, 248, 236, 226,
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253, 176, 255, 238, 195, 64, 0, 0, 0, 0, 149, 72, 0, 0, 1, 170,
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135, 119, 0, 0, 0, 0, 1, 105, 64, 0, 0, 0, 1, 186, 128, 2,
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80, 176, 255, 238, 136, 200, 238, 136, 248, 238, 136, 216, 238, 88, 134, 224,
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238, 134, 224, 238, 176, 1, 238, 185, 8, 0, 236, 60, 255, 225, 251, 132,
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192, 116, 1, 249, 195, 81, 82, 49, 201, 186, 100, 0, 180, 134, 205, 21,
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90, 89, 195, 156, 30, 83, 86, 137, 198, 184, 0, 192, 142, 216, 180, 14,
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49, 219, 252, 172, 8, 192, 116, 4, 205, 16, 235, 247, 94, 91, 31, 157,
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195, 156, 30, 83, 81, 82, 86, 137, 194, 184, 0, 192, 142, 216, 49, 219,
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252, 137, 214, 177, 12, 211, 238, 131, 230, 15, 138, 132, 184, 228, 180, 14,
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205, 16, 137, 214, 177, 8, 211, 238, 131, 230, 15, 138, 132, 184, 228, 180,
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14, 205, 16, 137, 214, 177, 4, 211, 238, 131, 230, 15, 138, 132, 184, 228,
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180, 14, 205, 16, 137, 214, 131, 230, 15, 138, 132, 184, 228, 180, 14, 205,
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16, 94, 90, 89, 91, 31, 157, 195, 48, 49, 50, 51, 52, 53, 54, 55,
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56, 57, 65, 66, 67, 68, 69, 70, 66, 111, 111, 116, 82, 79, 77, 32,
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102, 111, 114, 32, 88, 84, 77, 97, 120, 32, 118, 49, 46, 48, 13, 10,
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67, 111, 112, 121, 114, 105, 103, 104, 116, 32, 40, 99, 41, 32, 50, 48,
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50, 53, 32, 77, 97, 116, 116, 104, 105, 101, 117, 32, 66, 117, 99, 99,
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104, 105, 97, 110, 101, 114, 105, 13, 10, 0, 79, 108, 100, 32, 73, 78,
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84, 49, 51, 104, 32, 86, 101, 99, 116, 111, 114, 32, 61, 32, 0, 78,
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101, 119, 32, 73, 78, 84, 49, 51, 104, 32, 86, 101, 99, 116, 111, 114,
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32, 61, 32, 0, 78, 101, 119, 32, 70, 105, 120, 101, 100, 32, 68, 105,
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115, 107, 32, 80, 97, 114, 97, 109, 101, 116, 101, 114, 32, 84, 97, 98,
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108, 101, 32, 61, 32, 0, 83, 68, 32, 67, 97, 114, 100, 32, 105, 110,
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105, 116, 105, 97, 108, 105, 122, 101, 100, 32, 115, 117, 99, 99, 101, 115,
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115, 102, 117, 108, 108, 121, 13, 10, 0, 83, 68, 32, 67, 97, 114, 100,
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32, 102, 97, 105, 108, 101, 100, 32, 116, 111, 32, 105, 110, 105, 116, 105,
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97, 108, 105, 122, 101, 13, 10, 0, 85, 110, 115, 117, 112, 112, 111, 114,
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116, 101, 100, 32, 73, 78, 84, 49, 51, 104, 32, 70, 117, 110, 99, 116,
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105, 111, 110, 32, 0, 58, 0, 32, 0, 13, 10, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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@@ -39,92 +127,4 @@ unsigned char BOOTROM[] = {
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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||||
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, 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, 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, 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, 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,
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||||
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,
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||||
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, 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,
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||||
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,
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||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
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||||
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, 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, 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, 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, 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, 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, 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, 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, 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, 0, 0, 0, 0, 0, 0, 0, 0, 0,
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 93};
|
||||
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 216};
|
||||
1
XTMax/Drivers/BootROM/.gitignore
vendored
1
XTMax/Drivers/BootROM/.gitignore
vendored
@@ -1,2 +1,3 @@
|
||||
bootrom
|
||||
bootrom.com
|
||||
*.exe
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
@@ -1,2 +1,2 @@
|
||||
..\Driver_Build_Tools\NASM\nasm.exe -f bin -o bootrom.com -DAS_COM .\bootrom.asm
|
||||
..\Driver_Build_Tools\NASM\nasm.exe -f bin -o bootrom.com -DAS_COM_PROGRAM .\bootrom.asm
|
||||
..\Driver_Build_Tools\NASM\nasm.exe -f bin -o bootrom .\bootrom.asm & python checksum.py
|
||||
|
||||
168
XTMax/Drivers/BootROM/tests.inc
Normal file
168
XTMax/Drivers/BootROM/tests.inc
Normal file
@@ -0,0 +1,168 @@
|
||||
;
|
||||
; This is test code invoked when building with AS_COM
|
||||
;
|
||||
|
||||
;%define REAL_INT13
|
||||
%define DUMP_REGS
|
||||
|
||||
|
||||
xor ax, ax
|
||||
lahf
|
||||
mov ax, 0x1122
|
||||
mov bx, 0x3344
|
||||
mov cx, 0x5566
|
||||
mov dx, 0x7788
|
||||
mov si, 0x99aa
|
||||
mov di, 0xbbcc
|
||||
mov bp, 0xddee
|
||||
|
||||
mov dl, 0x80
|
||||
mov ah, 0x08
|
||||
|
||||
;mov bx, buf_write
|
||||
;mov ch, 0
|
||||
;mov cl, 1
|
||||
;mov dh, 0
|
||||
;mov al, 1
|
||||
|
||||
call do_int13h
|
||||
|
||||
mov dl, 0x80
|
||||
mov ah, 0x02
|
||||
|
||||
mov bx, ds
|
||||
mov es, bx
|
||||
mov bx, buf_read
|
||||
mov ch, 0
|
||||
mov cl, 1
|
||||
mov dh, 0
|
||||
mov al, 1
|
||||
|
||||
call do_int13h
|
||||
|
||||
%if 1
|
||||
mov cx, 256
|
||||
mov si, buf_read
|
||||
.dump:
|
||||
lodsw
|
||||
call print_hex
|
||||
mov ax, space
|
||||
call print_string
|
||||
loop .dump
|
||||
mov ax, newline
|
||||
call print_string
|
||||
|
||||
; wait for kbd
|
||||
mov ah, 0x01
|
||||
int 0x21
|
||||
%endif
|
||||
|
||||
mov ah, 0x01
|
||||
call do_int13h
|
||||
mov ah, 0x01
|
||||
call do_int13h
|
||||
|
||||
;mov ax, newline
|
||||
;call print_string
|
||||
;mov ch, 255
|
||||
;mov cl, 255
|
||||
;mov dh, NUM_HEADS-1
|
||||
;call compute_lba
|
||||
;push ax
|
||||
;mov ax, bx
|
||||
;call print_hex
|
||||
;pop ax
|
||||
;call print_hex
|
||||
;mov ax, newline
|
||||
;call print_string
|
||||
|
||||
jmp end
|
||||
|
||||
do_int13h:
|
||||
%ifdef DUMP_REGS
|
||||
call dump_regs
|
||||
%endif
|
||||
|
||||
pushf ; save flags (to compare)
|
||||
%ifndef REAL_INT13
|
||||
; simulate vector call
|
||||
pushf
|
||||
push cs
|
||||
call int13h_entry
|
||||
%else
|
||||
int 0x13
|
||||
%endif
|
||||
pushf ; save flags (to compare)
|
||||
push ax
|
||||
jnc .success
|
||||
.error:
|
||||
mov ax, test_failed_msg
|
||||
call print_string
|
||||
jmp .finish
|
||||
.success:
|
||||
mov ax, test_success_msg
|
||||
call print_string
|
||||
.finish:
|
||||
pop ax
|
||||
push ax
|
||||
mov al, ah
|
||||
xor ah, ah
|
||||
call print_hex
|
||||
mov ax, newline
|
||||
call print_string
|
||||
pop ax
|
||||
|
||||
; dump registers
|
||||
%ifdef DUMP_REGS
|
||||
call dump_regs
|
||||
pop ax
|
||||
call print_hex
|
||||
mov ax, colon
|
||||
call print_string
|
||||
pop ax
|
||||
call print_hex
|
||||
mov ax, newline
|
||||
call print_string
|
||||
%else
|
||||
popf
|
||||
popf
|
||||
%endif
|
||||
|
||||
; wait for kbd
|
||||
mov ah, 0x01
|
||||
int 0x21
|
||||
ret
|
||||
|
||||
;
|
||||
; A fake INT13h handler to test redirection of floppy service
|
||||
;
|
||||
fake_int13h_entry:
|
||||
push ax
|
||||
mov ax, fake_handler_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
|
||||
mov ah, 0xaa
|
||||
push bp
|
||||
mov bp, sp
|
||||
or byte [bp+6], 0x1 ; set carry of flags for iret
|
||||
pop bp
|
||||
iret
|
||||
|
||||
buf_write db 1, 2, 3, 4, 5, 6, 7, 8
|
||||
times 496 db 0
|
||||
db 248, 249, 250, 251, 252, 253, 254, 255
|
||||
times 512 db 0
|
||||
buf_read times 1024 db 0
|
||||
|
||||
fake_handler_msg db 'BIOS INT13h Function ', 0
|
||||
test_success_msg db 'Call succeeded ', 0
|
||||
test_failed_msg db 'Call failed ', 0
|
||||
|
||||
end:
|
||||
139
XTMax/Drivers/BootROM/utils.inc
Normal file
139
XTMax/Drivers/BootROM/utils.inc
Normal file
@@ -0,0 +1,139 @@
|
||||
;
|
||||
; Display a string.
|
||||
; in: AX = string pointer
|
||||
; out: AX = <TRASH>
|
||||
;
|
||||
print_string:
|
||||
pushf
|
||||
push ds
|
||||
push bx
|
||||
push si
|
||||
mov si, ax
|
||||
%ifndef AS_COM_PROGRAM
|
||||
mov ax, ROM_SEGMENT
|
||||
mov ds, ax
|
||||
%endif
|
||||
mov ah, 0xe
|
||||
xor bx, bx
|
||||
cld
|
||||
.loop:
|
||||
lodsb
|
||||
or al, al
|
||||
jz .done
|
||||
int 0x10
|
||||
jmp .loop
|
||||
.done:
|
||||
pop si
|
||||
pop bx
|
||||
pop ds
|
||||
popf
|
||||
ret
|
||||
|
||||
;
|
||||
; Display a 16-bit value in hex.
|
||||
; in: AX = value
|
||||
; out: AX = <TRASH>
|
||||
;
|
||||
print_hex:
|
||||
pushf
|
||||
push ds
|
||||
push bx
|
||||
push cx
|
||||
push dx
|
||||
push si
|
||||
mov dx, ax
|
||||
%ifndef AS_COM_PROGRAM
|
||||
mov ax, ROM_SEGMENT
|
||||
mov ds, ax
|
||||
%endif
|
||||
xor bx, bx
|
||||
cld
|
||||
.nibble1:
|
||||
mov si, dx
|
||||
mov cl, 12
|
||||
shr si, cl
|
||||
and si, 0xf
|
||||
mov al, [hex_map+si]
|
||||
mov ah, 0xe
|
||||
int 0x10
|
||||
.nibble2:
|
||||
mov si, dx
|
||||
mov cl, 8
|
||||
shr si, cl
|
||||
and si, 0xf
|
||||
mov al, [hex_map+si]
|
||||
mov ah, 0xe
|
||||
int 0x10
|
||||
.nibble3:
|
||||
mov si, dx
|
||||
mov cl, 4
|
||||
shr si, cl
|
||||
and si, 0xf
|
||||
mov al, [hex_map+si]
|
||||
mov ah, 0xe
|
||||
int 0x10
|
||||
.nibble4:
|
||||
mov si, dx
|
||||
and si, 0xf
|
||||
mov al, [hex_map+si]
|
||||
mov ah, 0xe
|
||||
int 0x10
|
||||
pop si
|
||||
pop dx
|
||||
pop cx
|
||||
pop bx
|
||||
pop ds
|
||||
popf
|
||||
ret
|
||||
|
||||
hex_map db '0123456789ABCDEF'
|
||||
|
||||
%if %isdef(EXTRA_DEBUG) || %isdef(AS_COM_PROGRAM)
|
||||
dump_regs:
|
||||
push ax
|
||||
mov ax, registers_msg
|
||||
call print_string
|
||||
pop ax
|
||||
push ax
|
||||
call print_hex
|
||||
mov ax, space
|
||||
call print_string
|
||||
mov ax, bx
|
||||
call print_hex
|
||||
mov ax, space
|
||||
call print_string
|
||||
mov ax, cx
|
||||
call print_hex
|
||||
mov ax, space
|
||||
call print_string
|
||||
mov ax, dx
|
||||
call print_hex
|
||||
mov ax, space
|
||||
call print_string
|
||||
mov ax, ds
|
||||
call print_hex
|
||||
mov ax, space
|
||||
call print_string
|
||||
mov ax, si
|
||||
call print_hex
|
||||
mov ax, space
|
||||
call print_string
|
||||
mov ax, es
|
||||
call print_hex
|
||||
mov ax, space
|
||||
call print_string
|
||||
mov ax, di
|
||||
call print_hex
|
||||
mov ax, space
|
||||
call print_string
|
||||
mov ax, bp
|
||||
call print_hex
|
||||
mov ax, space
|
||||
call print_string
|
||||
mov ax, newline
|
||||
call print_string
|
||||
pop ax
|
||||
ret
|
||||
|
||||
registers_msg db ' AX BX CX DX DS SI ES DI BP', 0xD, 0xA, 0
|
||||
%endif
|
||||
Reference in New Issue
Block a user