This issue was suppose to contain the entire listing to "Black Knight". Since I didn't want to make a lousy job on what the monsters look and move like, I have extended this column for two more issues(Sorry). In this issue I have created Lancelot with sword in hand and the movement with a joystick. A short assembly-language subroutine was made to move Lancelot up and down smoothly. Lancelot moves left, right, up and down, similar to the movement in Ali Baba(TM). This short program below won't have to be changed at all in order to continue with the next installment of 'Adventure Games'.

00018 *ASSEMBLER UPCODE
00020 VP0S    .EQ $601
00030 PMBASE  .EQ $7800
00040         PLA
00050         LDA VPOS
00060         SEC
00070         SBC #9
00080         STA VP0S
00090         LDY VPOS
00100         LDA #0
00110         STA PMBASE+$209,Y
00120         STA PMBASE+$20A,Y
00130         STA PMBASE+$20B,Y
0010)         STA PMBASE+$20C,Y
00150         STA PMBASE+$20D,Y
00160         STA PMBASE+$20E,Y
00170         STA PMBASE+$20F,Y
00180         STA PMBASE+$210,Y
00190         STA PMBASE+$211,Y
00200         LDA #19
00210         STA PMBASE+$200,Y
00220         LDA #50
00230         STA PMBASE+$201,Y
00240         LDA #36
00250         STA PMBASE+$202,Y
00260         LDA #56
00270         STA PMBASE+$203,Y
00280         LDA #32
00290         STA PMBASE+$204,Y
00300         LDA #32
00310         STA PMBASE+$205,Y
00320         LDA #56
00330         STA PMBASE+$206,Y
00310         LDA #232
00350         STA PMBASE+$207,Y
00360         LDA #148
00370         STA PMBASE+$208,Y
00380         RTS
Ok.

00005 *ASSEMBLER DOWNCODE
00010 VPOS    .EQ $601
00020 PMBASE  .EQ $7800
00030         PLA
000q0         LDA VPOS
00050         CLC
00060         ADC #9
00070         STA VPOS
00080         LDY VPOS
00090         LDA #0
00100         STA PMBASE+$1F7,Y
00110         STA PMBASE+$1F8,Y
00120         STA PMBASE+$1F9,Y
00130         STA PMBASE+$1FA,Y
00140         STA PMBASE+$1FB,Y
00150         STA PMBASE+$1FC,Y
00160         STA PMBASE+$1FD,Y
00170         STA PMBASE+$1FE,Y
00180         STA PMBASE+$1FF,Y
00190         LDA #19
00200         STA PMBASE+$200,Y
00210         LDA #50
00220         STA PMBASE+$201,Y
00230         LDA #36
00210         STA PMBASE+$202,Y
00250         LDA #56
00260         STA PMBASE+$203,Y
00270         LDA #32
00280         STA PMBASE+$204,Y
00290         LDA #32
00300         STA PMBASE+$205,Y
00310         LDA #56
00320         STA PMBASE+$206,Y
00330         LDA #232
00310         STA PMDASE+$207,Y
00350         LDA #110
00360         STA PMBASE+$208,Y
00370         RTS
Ok.


4900 GRAPHICS 0:SETCOLOR 2,16,1
4950 REM PLAYER POSITION
5000 X=100:Y=60
5050 REM SET UP PLAYER/MISSILE ADDRESS
5100 I=PEEK(106)-8:POKE 54279,I:PMBASE=I*256
5200 FOR Z=PMBASE+512 TO PMBASE+640
5300 POKE Z,0
5400 NEXT Z
5500 POKE 559,46:POKE 53277,3
5600 POKE 53248,X
5700 POKE 704,135
5800 FOR Z=0 TO 8;READ W:POKE PMBASE+512+Y+Z,W
5900 NEXT Z
5950 REM CHARACTER DATA
6000 DATA 49,50,36,56,32,32,56,232,140
6100 GOTO 6800
6200 A=STICK(0):IF A=11 THEN Y=Y-9:POKE 53279,0
6250 REM JOYSTICK FOR PLAYER MOVEMENT
6300 IF A=11 THEN X=X-9:POKE 53279,0:POKE 53248,X:A=15:FOR P=1 TO 100:NEXT P:IF A=15 THEN MOVE=MOVE-1:GOTO 6300
6400 IF A=7 THEN X=X+9:POKE 53279,0:POKE 53248,X:A=15:FOR P=1 TO 100:NEXT P:IF A=15 THEN MOVE=MOVE-1:GOTO 6400
6500 IF A=13 THEN R=USR(1700):POKE 53279,0:A=15:FOR D=1 TO 100:NEXT D:IF A=15 THEN MOVE=MOVE-1:GOTO 6500
6600 IF A=14 THEN Q=USR(1600):POKE 532?9,0:A=15:FOR E=1 TO 100:NEXT E:IF A=15 THEN MOVE=MOVE-1:GOTO 6200
6670 GOTO 6200
6800 FOR Q=1 TO 88:READ W:POKE 1600+Q-1:NEXT Q.
6850 REM UPCODE
6900 POKE 1537,Y
7000 DATA 104,173,1,6,56,233,9,141,1,6,172,1,6,169,0,153,9,154,153,10,154,153,11,154,153,12,154,153,13,154
7100 DATA 153,14,154,153,15,154, 153,16,154,153,17,154,169,49,153,0,154,169,50,153,1,154,169,36,153,2,154,169,56
7200 DATA 153,3,154,169,32,153,4,154,169,32,153,5,154
7300 DATA 169,56,153,6,154,169,232,153,7,154,169,140,153,8,154,96
7400 FOR R=1 TO 88::READ S:POKE 1700+R-1,S:NEXT R
7450 REM DOWNCODE
7500 DATA 104,173,1,6,24,105,9,141,1,6,172,1,6,169,0,153,247,153,153,248,153,153,249,153,153,250,153,153,251,153
7600 DATA 153,252,153,153,253,153,153,254,153,153,255,153,169,49,153,0,154,169,50,153,1,154,169,36,153,2,154,169,56
7700 DATA 153,3,154,169,32,153,4,154,169,32,153,5,154
7800 DATA 169,56,l53,6,154,169,232,153,7,154,169,140,153,8,154,96
7900 GOTO 6200