| Routines

33B4: THE 'STACK NUMBER' SUBROUTINE

Used by the routines at BEEP, S_DECIMAL and S_LETTER. This subroutine is called by BEEP, S_U_PLUS and S_LETTER to copy STKEND to DE, move a floating-point number to the calculator stack, and reset STKEND from DE. It calls duplicate to do the actual move.
Input
HL | Address of the first byte of the number to stack
STACK_NUM | 33B4 | LD DE,($5C65) | Copy STKEND to DE as destination address.
| 33B8 | CALL duplicate | Move the number.
| 33BB | LD ($5C65),DE | Reset STKEND from DE.
| 33BF | RET | Finished.