27 lines
448 B
ArmAsm
27 lines
448 B
ArmAsm
#
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#include "asm.h"
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! Prints a \0-terminated string.
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.define _cpm_printstring0
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_cpm_printstring0:
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pop h ! pop return address
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pop d ! pop parameter (possibly junk)
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push d
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push h
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.1:
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ldax d ! fetch byte
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ora a
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rz ! exit if zero
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inx d
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push b ! save FP as the BDOS will corrupt it
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push d
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mov e, a
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mvi c, 2 ! conout
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call 0x0005
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pop d
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pop b
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jmp .1
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