Spectrum ROM: Routine at 0074

0074: THE 'CH-ADD+1' SUBROUTINE

Used by the routines at NEXT_CHAR, S_QUOTE_S and INT_TO_FP.

The address held in CH-ADD is fetched, incremented and restored. The contents of the location now addressed by CH-ADD are fetched. The entry points of TEMP_PTR1 and TEMP_PTR2 are used to set CH-ADD for a temporary period.

Output
A	Code of the character at CH-ADD+1

CH_ADD_1

0074

LD HL,($5C5D)

Fetch the address from CH-ADD.

This entry point is used by the routines at READ_3 and S_DECIMAL.

TEMP_PTR1

0077

INC HL

Increment the pointer.

This entry point is used by the routine at READ_3.

TEMP_PTR2

0078

LD ($5C5D),HL

Set CH-ADD.

007B

LD A,(HL)

Fetch the addressed value and then return.

007C

RET