23 lines
434 B
ArmAsm
23 lines
434 B
ArmAsm
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#
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#include "asm.h"
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! Calls the BIOS SELDSK routine, which returns its result in HL.
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.define _cpm_bios_seldsk
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_cpm_bios_seldsk:
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pop h ! pop return address
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pop d ! pop parameter
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push d
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push h
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push b ! save FP as we'll corrupt it
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mov b, d ! put parameter in BC
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mov c, e
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mvi a, 0x1b-3 ! offset from WBOOT to SELDSK
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call call_bios_raw
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pop b
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xchg ! DE = HL
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ret
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