Routines
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FF35: Match String: Look Up Variable
Used by the routines at PrintString and MatchString.
Calls LOOK-VARS for the name pointed to by HL. Returns with the zero flag set if the variable is missing or empty; else HL points to the string body and BC holds its length.
Input
HL Pointer to the variable name
MatchString_LookUpVariable FF35 PUSH HL
FF36 LD HL,($5C5D)
FF39 EX (SP),HL
FF3A LD ($5C5D),HL
FF3D CALL $28B2
FF40 EX (SP),HL
FF41 LD ($5C5D),HL
FF44 POP HL
FF45 JR C,MatchString_LookUpVariable_0
FF47 INC HL
FF48 LD C,(HL)
FF49 INC HL
FF4A LD B,(HL)
FF4B INC HL
FF4C LD A,B
FF4D OR C
FF4E RET
MatchString_LookUpVariable_0 FF4F EI
FF50 RST $08
FF51 DEFB $01 Error code for the RST 08 above.
FF52 DEFB $00
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