Routines
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46764: Parser: Validate Any Direct Object
Parser: Validate Any Direct Object.
Output
A The number of valid direct objects in the user input tokens
F The carry flag is set when the command is malformed
F The zero flag is set when there are no valid direct objects present in the input tokens
The first token is the verb, so target the second token for the direct object.
ParserValidateAnyDirectObject 46764 LD A,(44847) Fetch the 44847(second token from the user input) and store it in A.
46767 CP 255 Jump forward to ValidateAnyDirectObject if the token is anything other than the terminator character (255).
46769 JR NZ,ValidateAnyDirectObject
The token was the terminator character (255), so the sentence is malformed.
E.g. They tried "TAKE" but didn't write anything after it.
46771 CALL Messaging_PleaseBeMoreSpecific_Newline Call Messaging_PleaseBeMoreSpecific_Newline to ask for a more specific command.
46774 SCF Set the carry flag to indicate this call was a failure.
46775 RET Return.
The user input tokens have a direct object, return how many are in the command buffer.
ValidateAnyDirectObject 46776 CALL ParserCountItemReferences Call ParserCountItemReferences.
46779 RET Return.
View the equivalent code in;
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