Spectrum ROM: Routine at 1190

1190: THE 'SET-HL' AND 'SET-DE' SUBROUTINES

Used by the routine at CLEAR_SP.

These subroutines return with DE pointing to the first location and HL to the last location of either the editing area or the work space.

Output
DE	Address of the first byte of the editing area or work space
HL	Address of the last byte of the editing area or work space

SET_HL

1190

LD HL,($5C61)

Point to the last location of the editing area (WORKSP-1).

1193

DEC HL

1194

AND A

Clear the carry flag.

This entry point is used by the routines at ED_EDGE and ED_COPY with the carry flag set.

SET_DE

1195

LD DE,($5C59)

Point to the start of the editing area (E-LINE) and return if in 'editing mode' (bit 5 of FLAGX reset).

1199

BIT 5,(IY+$37)

119D

RET Z

119E

LD DE,($5C61)

Otherwise point DE at the start of the work space (WORKSP).

11A2

RET C

Return if now intended.

11A3

LD HL,($5C63)

Fetch STKBOT and then return.

11A6

RET