Routines
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02780: THE 'POSITION STORE' SUBROUTINE
Used by the routine at CL_SET.
The routine at PO_ABLE continues here.
The new position's 'line and column' values and the 'pixel' address are stored in the appropriate system variables.
Input
B Line number
C Column number
HL Display file address or printer buffer address
PO_STORE 02780 BIT 1,(IY+1) Jump forward if handling the printer (bit 1 of FLAGS set).
02784 JR NZ,PO_ST_PR
02786 BIT 0,(IY+2) Jump forward if handling the lower part of the screen (bit 0 of TV-FLAG set).
02790 JR NZ,PO_ST_E
02792 LD (23688),BC Save the values that relate to the main part of the screen at S-POSN and DF-CC.
02796 LD (23684),HL
02799 RET Then return.
PO_ST_E 02800 LD (23690),BC Save the values that relate to the lower part of the screen at S-POSNL, ECHO-E and DF-CCL.
02804 LD (23682),BC
02808 LD (23686),HL
02811 RET Then return.
PO_ST_PR 02812 LD (IY+69),C Save the values that relate to the printer buffer at P-POSN and PR-CC.
02815 LD (23680),HL
02818 RET Then return.
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