Array: Difference between revisions
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Puppydrum64 (talk | contribs) m (→Encoding an Array's End: Provided more fitting examples that actually relate to the text.) |
Puppydrum64 (talk | contribs) (→Encoding an Array's End: Added additional clarification) |
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; input: [DS:SI] = string pointer |
; input: [DS:SI] = string pointer |
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mov al,[ds:si] |
mov al,[ds:si] |
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cmp al,5Ch ;ascii for backslash, this is the escape character |
cmp al,5Ch ;ascii for backslash, this is the escape character |
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;notice that the check for the escape character happens before the check for the terminator. |
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jz EscapeNextChar |
jz EscapeNextChar |
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cmp al,0h ;check the terminator |
cmp al,0h ;check the terminator |
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jz Terminated ;we've reached the terminator |
jz Terminated ;we've reached the terminator |
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call PrintChar ;call to hardware-specific printing routine |
call PrintChar ;call to hardware-specific printing routine |
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jmp PrintString |
jmp PrintString |
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EscapeNextChar: |
EscapeNextChar: |
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mov al,[ds:si] ;perform an additional read, except this read doesn't compare the fetched character to anything. |
mov al,[ds:si] ;perform an additional read, except this read doesn't compare the fetched character to anything. |
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call PrintChar ;print that character as-is |
call PrintChar ;print that character as-is |
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jmp PrintString ;go back to the loop's beginning, skipping the terminator check entirely. |
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jmp PrintString |
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Terminated: |
Terminated: |
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