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AX = 1902h ES:DI -> ASCIZ full filename of current batch file, with at least the final filename element uppercased DS:DX -> buffer for results
Return:
AL = 00h failed, either (a) final filename element quoted at ES:DI does not match identity of shell batch file quoted as parameter of most recent call of SHELLB command, or (b) no more Program Start Commands available. AL= FFh success, then: memory at DS:[DX+1] onwards filled as:DX+1:
BYTE count of bytes of PSCDX+2:
N BYTEs Program Start Command text BYTE 0Dh terminator
Desc: COMMAND.COM executes the result of this call in preference to reading a command from a batch file. Thus the batch file does not advance in execution for so long as SHELLB provides PSCs from its workspace.
Note: The PSCs are planted in SHELLB workspace by SHELLC, the user menu interface. The final PSC of a sequence is finished with a GOTO COMMON, which causes a loop back in the batch file which called SHELLC so as to execute SHELLC again. The check on batch file name permits PSCs to CALL nested batch files while PSCs are still stacked up for subsequent execution.
Category: Shells/Command Interpreters - Int 2Fh - D
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