mirror of
https://github.com/nathanriggs/AppleIIAsm-Collection.git
synced 2024-06-07 10:29:28 +00:00
9f35f32f67
- massive overhaul of architecture - first round of optimizations - first draft of the technical manual for the entire library - reorganization of directory structure
84 lines
1.8 KiB
Plaintext
84 lines
1.8 KiB
Plaintext
]SIZE EQU WPAR3
|
|
]ADDR1 EQU WPAR1
|
|
]ADDR2 EQU WPAR2
|
|
MEMMOVE
|
|
LDA ]ADDR2
|
|
SEC
|
|
SBC ]ADDR1
|
|
TAX
|
|
LDA ]ADDR2+1
|
|
SBC ]ADDR1+1
|
|
|
|
TAY
|
|
TXA
|
|
CMP ]SIZE
|
|
TYA
|
|
SBC ]SIZE+1
|
|
BCS :DOLEFT
|
|
JSR :MVERHT
|
|
JMP :MREXIT
|
|
:DOLEFT
|
|
JSR :MVELEFT
|
|
:EXIT
|
|
JMP :MREXIT
|
|
:MVELEFT
|
|
LDY #0
|
|
LDX ]SIZE+1
|
|
BEQ :MLPART
|
|
:MLPAGE
|
|
LDA (]ADDR1),Y
|
|
STA (]ADDR2),Y
|
|
INY
|
|
BNE :MLPAGE
|
|
INC ]ADDR1+1
|
|
INC ]ADDR2+1
|
|
DEX
|
|
BNE :MLPAGE
|
|
|
|
:MLPART
|
|
LDX ]SIZE
|
|
BEQ :MLEXIT
|
|
|
|
|
|
:MLLAST
|
|
LDA (]ADDR1),Y
|
|
STA (]ADDR2),Y
|
|
INY
|
|
DEX
|
|
BNE :MLLAST
|
|
:MLEXIT
|
|
JMP :MREXIT
|
|
:MVERHT
|
|
LDA ]SIZE+1
|
|
CLC
|
|
ADC ]ADDR1+1
|
|
STA ]ADDR1+1
|
|
LDA ]SIZE+1
|
|
CLC
|
|
ADC ]ADDR2+1
|
|
STA ]ADDR2+1
|
|
LDY ]SIZE
|
|
BEQ :MRPAGE
|
|
:MR0
|
|
DEY
|
|
LDA (]ADDR1),Y
|
|
STA (]ADDR2),Y
|
|
CPY #0
|
|
BNE :MR0
|
|
:MRPAGE
|
|
LDX ]SIZE+1
|
|
BEQ :MREXIT
|
|
:MR1
|
|
DEC ]ADDR1+1
|
|
DEC ]ADDR2+1
|
|
:MR2
|
|
DEY
|
|
LDA (]ADDR1),Y
|
|
STA (]ADDR2),Y
|
|
CPY #0
|
|
BNE :MR2
|
|
DEX
|
|
BNE :MR1
|
|
:MREXIT
|
|
RTS
|