Routines
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58140: Read View Key
Used by the routines at ReadInterface2Joystick, ReadKempstonJoystick, ReadCursorJoystick and ReadKeyboard.
Reads the key for turning the view (Z or SYMBOL SHIFT), and keeps the controls in Controls.
Input
C Controls
Read the key which turns the view.
ReadViewKey 58140 LD A,126 Read from the keyboard;
Port Number Bit
0 1 2 3 4
126 SHIFT / SPACE Z / SYM X / M C / N V / B
58142 CALL ReadKeyboardPort
58145 BIT 1,A Set the control for turning the view if the key Z or SYMBOL SHIFT is pressed.
58147 JR Z,ReadViewKey_Store
58149 SET 5,C
ReadViewKey_Store 58151 LD A,C Store the controls and return.
58152 LD (48129),A
58155 RET
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