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Keyboard: CTRLmc

[BBC Master version]

Name: CTRLmc [Show more] Type: Subroutine Category: Keyboard Summary: Scan the Master Compact keyboard to see if CTRL is currently pressed
Context: See this subroutine in context in the source code References: This subroutine is called as follows: * hyp calls CTRLmc * TT18 calls CTRLmc

Returns: X X = %10000001 (i.e. 129 or -127) if CTRL is being pressed X = 1 if CTRL is not being pressed A Contains the same as X
IF _COMPACT .CTRLmc LDA #1 \ Set A to the internal key number for CTRL and fall \ through to DKS4mc to scan the keyboard ENDIF