Ant Attack: Data at 5C00

5C00: System variables

The tape block starts here, so it carries a set of system variables of its own: PROG, VARS and the rest point at the game's BASIC, and ERR_SP and RAMTOP at its stack, just below the machine code.
SYSTEM_VARIABLES	5C00	DEFB $FF,$00,$00,$00,$FF,$00,$22,$0D
	5C08	DEFB $0D,$23,$05,$00,$00,$00,$00,$00
	5C10	DEFB $01,$00,$06,$00,$0B,$00,$01,$00
	5C18	DEFB $01,$00,$06,$00,$10,$00,$00,$00
	5C20	DEFB $00,$00,$00,$00,$00,$00,$00,$00
	5C28	DEFB $00,$00,$00,$00,$00,$00,$00,$00
	5C30	DEFB $00,$00,$00,$00,$00,$00,$00,$3C
	5C38	DEFB $40,$00
ERR_NR	5C3A	DEFB $FF	ERR_NR: INTERRUPT watches it for an error to restart from
	5C3B	DEFB $CC,$01
ERR_SP	5C3D	DEFB $FC,$7F	ERR_SP: RESTART_BASIC restarts BASIC with the stack it points at
	5C3F	DEFB $FC,$7F,$00,$00,$00,$FF,$FE,$FF
	5C47	DEFB $01,$38,$5F,$00,$DA,$7D,$00,$00
	5C4F	DEFB $B6,$5C,$B6,$5C,$CB,$5C,$E9,$7D
	5C57	DEFB $CA,$5C
E_LINE	5C59	DEFB $DB,$7D	E_LINE: where RESTART_BASIC types RUN
	5C5B	DEFB $E2,$7D,$E8,$7D,$01,$00,$EA,$7D
	5C63	DEFB $EA,$7D,$EA,$7D,$2D,$92,$5C,$10
	5C6B	DEFB $02,$00,$00,$FE,$FF,$01,$00,$00
	5C73	DEFB $00,$B6,$1A
SEED	5C76	DEFB $00,$00	SEED: PLAY leaves the game's random number here, and RANDOMIZE USR overwrites it at once
	5C78	DEFB $1E,$33,$00,$58,$FF,$00,$00,$21
	5C80	DEFB $00,$5B,$21,$17,$00,$40,$E0,$50
	5C88	DEFB $21,$18,$21,$17,$01,$38,$00,$38
	5C90	DEFB $00,$00,$00,$00,$00,$00,$00,$00
	5C98	DEFB $00,$5A,$00,$00,$00,$00,$0A,$00
	5CA0	DEFB $00,$00,$00,$00,$00,$00,$00,$00
	5CA8	DEFB $00,$00,$00,$00,$00,$00,$00,$00
	5CB0	DEFB $00,$00,$FF,$7F,$FF,$FF