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antoine-source/ultima2/DNGDRAW.S

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*
* Ultima II: The Revenge of the Enchanteress
*
* (c) 1982, Sierra On-Line
* (s) 2020, John Disam
*
TYP BIN
ORG $8900
MX %11
LST OFF
*----------------------------
TXTCLR EQU $C050
HIRES EQU $C057
*----------------------------
L8900 LDA $02
STA $6A
LDA $03
STA $6B
LDA $FB
BEQ L8915
JSR L8951
JSR L89D7
JSR L8F58
L8915 LDA $02
STA $6A
LDA $03
STA $6B
LDA $00
STA $F4
LDA $01
STA $F5
JSR L8F42
STA $12
LDA $00
CLC
ADC $6A
STA $F4
LDA $01
CLC
ADC $6B
STA $F5
JSR L8F42
STA $13
LDA $00
SEC
SBC $6A
STA $F4
LDA $01
SEC
SBC $6B
STA $F5
JSR L8F42
STA $14
RTS
L8951 CLC
LDA $00
STA $5C
ADC $6B
STA $5A
SEC
LDA $01
STA $5D
SBC $6A
STA $5B
SEC
LDA $00
SBC $6B
STA $5E
CLC
LDA $01
ADC $6A
STA $5F
LDX #$00
L8973 LDA $5A
AND #$3F
STA $F4
CLC
ADC $6A
STA $5A
LDA $5B
AND #$3F
STA $F5
CLC
ADC $6B
STA $5B
JSR L8F42
AND #$F0
STA $70,X
LDA $5C
AND #$3F
STA $F4
CLC
ADC $6A
STA $5C
LDA $5D
AND #$3F
STA $F5
CLC
ADC $6B
STA $5D
JSR L8F42
AND #$F0
STA $78,X
JSR L8F42
AND #$07
STA $90,X
LDA $5E
AND #$3F
STA $F4
CLC
ADC $6A
STA $5E
LDA $5F
AND #$3F
STA $F5
CLC
ADC $6B
STA $5F
JSR L8F42
AND #$F0
STA $80,X
INX
CPX #$08
BCC L8973
RTS
L89D7 JSR L8FF4
BIT HIRES
BIT TXTCLR
LDA #$00
STA $69
JSR L8BD0
L89E7 LDX $69
LDA $78,X
BPL L8A0E
JSR L8BD0
LDA $78,X
AND #$40
BEQ L8A6F
LDA $78,X
AND #$20
BNE L8A6F
JSR L8C07
LDA $69
BNE L8A6F
INC $69
LDA $69
CMP #$08
BCS L8A6F
JMP L89E7
L8A0E LDA $78,X
AND #$20
BEQ L8A17
JSR L8C96
L8A17 LDA $78,X
AND #$10
BEQ L8A23
JSR L8CD8
JMP L8A2C
L8A23 LDA $78,X
AND #$40
BEQ L8A2C
JSR L8D45
L8A2C LDA $70,X
BPL L8A45
JSR L8B70
LDA $70,X
AND #$40
BEQ L8A48
LDA $70,X
AND #$20
BNE L8A48
JSR L8C34
JMP L8A48
L8A45 JSR L8AF4
L8A48 LDA $80,X
BPL L8A61
JSR L8BA0
LDA $80,X
AND #$40
BEQ L8A64
LDA $80,X
AND #$20
BNE L8A64
JSR L8C66
JMP L8A64
L8A61 JSR L8B32
L8A64 INC $69
LDA $69
CMP #$07
BCS L8A6F
JMP L89E7
L8A6F RTS
L8A70 DB $00
L8A71 DB $40
L8A72 DB $60
L8A73 DB $70
DB $78
DB $7C
DB $7E
DB $7F
DB $7F
DB $7F
L8A7A DB $FF
L8A7B DB $BF
L8A7C DB $9F
L8A7D DB $8F
DB $87
DB $83
DB $81
DB $80
DB $80
DB $80
L8A84 DB $00
L8A85 DB $20
DB $30
DB $38
DB $3C
DB $3E
DB $3F
DB $3F
L8A8C DB $7F
L8A8D DB $5F
DB $4F
DB $47
DB $43
DB $41
DB $40
DB $40
L8A94 DB $10
L8A95 DB $48
DB $64
DB $72
DB $79
DB $7C
DB $7F
DB $7F
L8A9C DB $30
L8A9D DB $58
DB $6C
DB $76
DB $7B
DB $7C
DB $7F
DB $7F
L8AA4 DB $EF
L8AA5 DB $B7
DB $9B
DB $8D
DB $86
DB $83
DB $80
DB $80
L8AAC DB $CF
L8AAD DB $A7
DB $93
DB $89
DB $84
DB $83
DB $80
DB $80
L8AB4 DB $77
DB $5B
DB $4D
DB $46
DB $42
DB $40
DB $40
DB $40
L8ABC DB $67
DB $53
DB $49
DB $44
DB $42
DB $40
DB $40
DB $40
L8AC4 DB $2A
DB $35
DB $3B
DB $3D
DB $3E
DB $3F
DB $3F
DB $3F
L8ACC DB $08
DB $24
DB $32
DB $39
DB $3C
DB $3E
DB $3F
DB $3F
L8AD4 DB $18
DB $2C
DB $36
DB $3A
DB $3D
DB $3E
DB $3F
DB $3F
L8ADC DB $77
DB $5B
DB $4D
DB $46
DB $43
DB $41
DB $40
DB $40
L8AE4 DB $67
DB $53
DB $49
DB $45
DB $42
DB $41
DB $40
DB $40
L8AEC DB $6F
DB $57
DB $4B
DB $45
DB $42
DB $40
DB $40
DB $40
L8AF4 LDX $69
LDA L8A70,X
STA $60
STA $62
LDA L8A84,X
STA $61
LDA L8A8C,X
STA $63
JSR L8DC5
LDX $69
LDA L8A85,X
STA $61
STA $63
LDA L8A71,X
STA $62
JSR L8DC5
LDX $69
LDA L8A8D,X
STA $63
JSR L8DC5
LDX $69
LDA L8A70,X
STA $62
JSR L8DC5
LDX $69
RTS
L8B32 LDX $69
LDA L8A7A,X
STA $60
STA $62
LDA L8A84,X
STA $61
LDA L8A8C,X
STA $63
JSR L8DC5
LDX $69
LDA L8A85,X
STA $61
STA $63
LDA L8A7B,X
STA $62
JSR L8DC5
LDX $69
LDA L8A8D,X
STA $63
JSR L8DC5
LDX $69
LDA L8A7A,X
STA $62
JSR L8DC5
LDX $69
RTS
L8B70 LDX $69
LDA L8A70,X
STA $60
LDA L8A71,X
STA $62
LDA L8A84,X
STA $61
LDA L8A85,X
STA $63
JSR L8DC5
LDX $69
LDA L8A70,X
STA $62
LDA L8A8C,X
STA $63
LDA L8A8D,X
STA $61
JSR L8DC5
LDX $69
RTS
L8BA0 LDX $69
LDA L8A7A,X
STA $60
LDA L8A7B,X
STA $62
LDA L8A84,X
STA $61
LDA L8A85,X
STA $63
JSR L8DC5
LDX $69
LDA L8A7A,X
STA $62
LDA L8A8C,X
STA $63
LDA L8A8D,X
STA $61
JSR L8DC5
LDX $69
RTS
L8BD0 LDX $69
LDA L8A70,X
STA $60
LDA L8A84,X
STA $61
STA $63
LDA L8A7A,X
STA $62
JSR L8DC5
LDX $69
LDA L8A8C,X
STA $63
JSR L8DC5
LDX $69
LDA L8A70,X
STA $62
JSR L8DC5
LDX $69
LDA L8A84,X
STA $63
JSR L8DC5
LDX $69
RTS
L8C07 LDX $69
LDA L8A71,X
STA $60
STA $62
LDA L8A8C,X
STA $61
LDA L8A85,X
STA $63
JSR L8DC5
LDX $69
LDA L8A7B,X
STA $62
JSR L8DC5
LDX $69
LDA L8A8C,X
STA $63
JSR L8DC5
LDX $69
RTS
L8C34 LDX $69
LDA L8A94,X
STA $60
STA $62
LDA L8AB4,X
STA $61
LDA L8A85,X
STA $63
JSR L8DC5
LDX $69
LDA L8A9C,X
STA $62
LDA L8AC4,X
STA $63
JSR L8DC5
LDX $69
LDA L8ABC,X
STA $63
JSR L8DC5
LDX $69
RTS
L8C66 LDX $69
LDA L8AA4,X
STA $60
STA $62
LDA L8AB4,X
STA $61
LDA L8A85,X
STA $63
JSR L8DC5
LDX $69
LDA L8AAC,X
STA $62
LDA L8AC4,X
STA $63
JSR L8DC5
LDX $69
LDA L8ABC,X
STA $63
JSR L8DC5
RTS
L8C96 LDX $69
LDA L8A95,X
STA $60
LDA L8A9D,X
STA $62
LDA L8ADC,X
STA $61
LDA L8AE4,X
STA $63
JSR L8DC5
LDX $69
LDA L8AAD,X
STA $62
JSR L8DC5
LDX $69
LDA L8AA5,X
STA $62
LDA L8ADC,X
STA $63
JSR L8DC5
LDX $69
LDA L8A95,X
STA $62
JSR L8DC5
JSR L8D1A
LDX $69
RTS
L8CD8 LDX $69
LDA L8A95,X
STA $60
LDA L8A9D,X
STA $62
LDA L8ACC,X
STA $61
LDA L8AD4,X
STA $63
JSR L8DC5
LDX $69
LDA L8AAD,X
STA $62
JSR L8DC5
LDX $69
LDA L8AA5,X
STA $62
LDA L8ACC,X
STA $63
JSR L8DC5
LDX $69
LDA L8A95,X
STA $62
JSR L8DC5
JSR L8D1A
LDX $69
RTS
L8D1A LDX $69
LDA #$7F
STA $60
STA $62
LDA L8ACC,X
STA $61
LDA L8ADC,X
STA $63
JSR L8DC5
LDX $69
LDA #$80
STA $60
STA $62
LDA L8ACC,X
STA $61
LDA L8ADC,X
STA $63
JSR L8DC5
RTS
L8D45 LDA L8A72,X
STA $60
LDA L8AEC,X
STA $61
STA $63
LDA L8A7D,X
STA $62
JSR L8DC5
LDX $69
LDA L8AB4,X
STA $63
JSR L8DC5
LDX $69
LDA L8A72,X
STA $62
JSR L8DC5
LDX $69
LDA L8AEC,X
STA $63
JSR L8DC5
LDX $69
LDA L8A73,X
STA $62
LDA L8ABC,X
STA $63
JSR L8DC5
LDX $69
LDA L8A7C,X
STA $62
JSR L8DC5
LDX $69
LDA L8AEC,X
STA $63
JSR L8DC5
LDX $69
LDA L8A7D,X
STA $62
LDA L8AB4,X
STA $63
JSR L8DC5
LDX $69
LDA L8A7D,X
STA $60
LDA L8AEC,X
STA $61
LDA L8A7C,X
STA $62
LDA L8ABC,X
STA $63
JSR L8DC5
LDX $69
RTS
L8DC5 LDA $62
CMP $60
BNE L8DD2
LDA $63
CMP $61
BNE L8DD2
RTS
L8DD2 SEC
LDA $62
SBC $60
STA $6A
BCS L8DE8
EOR #$FF
STA $6A
INC $6A
LDA #$FF
STA $64
JMP L8DEC
L8DE8 LDA #$01
STA $64
L8DEC SEC
LDA $63
SBC $61
STA $6B
BCS L8E02
EOR #$FF
STA $6B
INC $6B
LDA #$FF
STA $65
JMP L8E06
L8E02 LDA #$01
STA $65
L8E06 LDA $6A
CMP $6B
BCS L8E0F
JMP L8E3A
L8E0F LDA $6A
STA $66
LSR
STA $67
L8E16 CLC
LDA $67
ADC $6B
STA $67
SEC
SBC $6A
BCC L8E2B
STA $67
CLC
LDA $61
ADC $65
STA $61
L8E2B CLC
LDA $60
ADC $64
STA $60
JSR L8FB6
DEC $66
BNE L8E16
RTS
L8E3A LDA $6B
STA $66
LSR
STA $67
L8E41 CLC
LDA $67
ADC $6A
STA $67
SEC
SBC $6B
BCC L8E56
STA $67
CLC
LDA $60
ADC $64
STA $60
L8E56 CLC
LDA $61
ADC $65
STA $61
JSR L8FB6
DEC $66
BNE L8E41
RTS
L8E65 LDA $61
CLC
ADC #$10
TAY
LDA $472C,Y
STA $FE
LDA $47EC,Y
STA $FF
LDX $60
LDY $48AC,X
INY
LDA $1F
BEQ L8E92
CMP #$01
BEQ L8EA4
CMP #$02
BEQ L8EB1
CMP #$03
BEQ L8ED0
CMP #$04
BEQ L8EDD
JMP L8E9A
L8E92 LDA $49CB,X
ORA ($FE),Y
STA ($FE),Y
RTS
L8E9A LDA $49CB,X
EOR #$7F
AND ($FE),Y
STA ($FE),Y
RTS
L8EA4 LDA L8EE8,Y
EOR #$7F
AND $49CB,X
BNE L8E92
JMP L8FD4
L8EB1 LDA L8EE8,Y
AND $49CB,X
BNE L8E92
JMP L8FD4
L8EBC LDA $49CB,X
ORA #$80
ORA ($FE),Y
STA ($FE),Y
RTS
L8EC6 LDA $49CB,X
EOR #$FF
AND ($FE),Y
STA ($FE),Y
RTS
L8ED0 LDA L8EE8,Y
EOR #$7F
AND $49CB,X
BEQ L8EC6
JMP L8EBC
L8EDD LDA L8EE8,Y
AND $49CB,X
BEQ L8EC6
JMP L8EBC
L8EE8 HEX 552A552A552A552A552A552A552A552A
HEX 552A552A552A552A552A552A552A552A
HEX 552A552A552A552A
L8F10 LDA $04
CLC
ASL
ASL
STA $62
STA $60
ADC #$04
STA $64
LDA $05
CLC
ASL
ASL
STA $63
STA $61
ADC #$04
STA $65
L8F2A JSR L8E65
INC $60
LDA $60
CMP $64
BCC L8F2A
LDA $62
STA $60
INC $61
LDA $61
CMP $65
BCC L8F2A
RTS
L8F42 LDA $F6
CLC
ADC #$10
STA $FD
LDA $F5
ASL
ASL
ASL
ASL
ADC $F4
STA $FC
LDY #$00
LDA ($FC),Y
RTS
L8F58 INC $69
LDX #$00
L8F5C INX
CPX $69
BCC L8F62
RTS
L8F62 LDA $90,X
BEQ L8F5C
CPX #$01
BEQ L8F7A
LDA #$08
STA $FD
LDA L8FAE,X
STA $FC
LDA $FD
LDX $FC
JMP L8F83
L8F7A CLC
ADC #$08
STA $FD
LDA #$00
STA $FC
L8F83 LDY #$00
LDA ($FC),Y
BNE L8F8A
RTS
L8F8A STA $04
JSR L8FA7
LDA ($FC),Y
AND #$1F
STA $05
LDA ($FC),Y
LSR
LSR
LSR
LSR
LSR
STA $1F
JSR L8FA7
JSR L8F10
JMP L8F83
L8FA7 INC $FC
BNE L8FAD
INC $FD
L8FAD RTS
L8FAE HEX 000080C0E0F0F8FC
L8FB6 LDA $61
CLC
ADC #$10
TAY
LDA $472C,Y
STA $FE
LDA $47EC,Y
STA $FF
LDX $60
LDY $48AC,X
INY
LDA $49CB,X
ORA ($FE),Y
STA ($FE),Y
RTS
L8FD4 LDA $61
CLC
ADC #$10
TAY
LDA $472C,Y
STA $FE
LDA $47EC,Y
STA $FF
LDX $60
LDY $48AC,X
INY
LDA $49CB,X
EOR #$FF
AND ($FE),Y
STA ($FE),Y
RTS
L8FF4 LDA #$20
STA $FB
LDA #$00
TAY
STA $FA
L8FFD STA ($FA),Y
INY
BNE L8FFD
INC $FB
LDX $FB
CPX #$40
BCC L8FFD
RTS
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