9 lines
524 B
PHP
9 lines
524 B
PHP
; Stable assembly ABI exported by the resident BIOS at C000.
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BIOS_PUTC = 0xC050 ; A = character; preserves all registers
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BIOS_TRY_GETC = 0xC053 ; returns A = character or 0; preserves BC..IY
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BIOS_GETC = 0xC056 ; blocking; returns character in A
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BIOS_IO_OUT = 0xC059 ; A = port, L = value; preserves all registers
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BIOS_IO_IN = 0xC05C ; A = port; returns value in A
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BIOS_DELAY_MS = 0xC05F ; HL = milliseconds; preserves all registers
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BIOS_MONITOR = 0xC062 ; warm-start the monitor; does not return
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