Sherlock: Routine at 42482

42482: Test For A Space

Used by the routine at ProcessTextCommand. Sorts a text byte into a blank, a vocabulary code, or a packed letter.
TestSpace	42482	CP 32	Jump ahead to TestSpace_IndexByCode if this text byte is below 32.
	42484	JR C,TestSpace_IndexByCode
	42486	CP 96	Jump ahead to GetCommonWordAndProcess if it is at least 96.
	42488	JP NC,GetCommonWordAndProcess	Jump ahead to GetCommonWordAndProcess if it is at least 96.
	42491	CP 64	Jump ahead to TestSpace_PrintSpace if it is below 64.
	42493	JR C,TestSpace_PrintSpace	Jump ahead to TestSpace_PrintSpace if it is below 64.
	42495	AND %00011111	Take the letter count of this packed word from bits 0-4.
	42497	INC A	Set B to the length plus one, point HL at the byte after IX, and clear C.
	42498	LD B,A
	42499	PUSH IX
	42501	POP HL
	42502	INC HL
	42503	LD C,0
TestSpace_0	42505	CALL RotateAndExtractCharacterCode	Call RotateAndExtractCharacterCode to rotate and extract character code, then call Print_Character to print character.
	42508	CALL Print_Character
	42511	DJNZ TestSpace_0	Count the next character of the message and repeat from TestSpace_0.
	42513	PUSH HL	Copy the pointer into the record, and go to MarkSuccessScript_MarkSuccess if the count in C is not zero.
	42514	POP IX
	42516	LD A,C
	42517	AND A
	42518	JR NZ,MarkSuccessScript_MarkSuccess
	42520	DEC IX	Step the pointer back one byte and go back to MarkSuccessScript_MarkSuccess.
	42522	JR MarkSuccessScript_MarkSuccess
Call Print_Character to print this character.
TestSpace_PrintSpace	42524	CALL Print_Character	Print this character and go back to MarkSuccessScript_MarkSuccess for the next letter.
	42527	JR MarkSuccessScript_MarkSuccess
Store the result in the low byte of the source, then clear the high byte of the source, then use the control character jump table at JumpTable_ControlCharacters as the pointer.
TestSpace_IndexByCode	42529	PUSH DE	Use the control character jump table at JumpTable_ControlCharacters.
	42530	LD E,A
	42531	LD D,0
	42533	LD HL,42333
	42536	ADD HL,DE
	42537	ADD HL,DE	Move the pointer on by the length, step to the next character of the message and swap the two pointers.
	42538	LD E,(HL)
	42539	INC HL
	42540	LD D,(HL)
	42541	EX DE,HL
	42542	POP DE
	42543	CP 29	Jump back to DispatchTextControlHandler if the token is at least 29.
	42545	JR NC,DispatchTextControlHandler
	42547	CALL DispatchTextControlHandler	Go to MarkSuccessScript_MarkSuccess if the looked-up handler returns zero.
	42550	JR Z,MarkSuccessScript_MarkSuccess
	42552	JR MarkSuccessScript	Carry on from MarkSuccessScript once the handler has returned.