f3c7ac9696
Instead of using the bootsector to load a bootloader, just put the bootloader in the ROM and call it a day. It looks for a file on the SD card in the root directory named `kernel.bin` and loads it into memory. This is not a perfect solution, as the kernel will grow larger and the kernel load address will have to change. At this point I could add back the bootloader, but that is for later. Also the bootloader is just a copy of the kernel, so that can be trimmed down a lot.
15 lines
211 B
C
15 lines
211 B
C
#ifndef _INTERRUPT_H
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#define _INTERRUPT_H
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#include <stdint.h>
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#define BUTTON (1 << 0)
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#define UART (1 << 1)
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void irq_int();
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void nmi_int();
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uint8_t irq_get_status();
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void irq_set_status(uint8_t);
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#endif |