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AppleIIAsm-Collection/source/disk4_math/T.REQUIRED.LIB.MIN

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Disk 4: MATH 0.3.0 updates - separated each subroutine into own file - minor changes to comments - not too many changes for 0.3.0, really. Major changes for this disk will come with 0.5.0
2019-01-21 03:03:35 +00:00
__GETRET
LDY #255
PLA
STA ADDR1
PLA
STA ADDR1+1
:LP
INY
LDA RETURN,Y
STA (ADDR1),Y
CPY RETLEN
BNE :LP
LDA ADDR1+1
PHA
LDA ADDR1
PHA
RTS
__SETPARM
LDY #255
PLA
STA ADDR1
PLA
STA ADDR1+1
:LP
INY
LDA (ADDR1),Y
STA PARAM,Y
CPY PARLEN
BNE :LP
LDA ADDR1+1
PHA
LDA ADDR1
PHA
RTS
__DUMP
PLA
STA :RET
PLA
STA :RET+1
PLA
STA :LENGTH
PLA
STA ADDR3
PLA
STA ADDR3+1
LDA #$8D
JSR $FDF0
LDA ADDR3+1
AND #$F0
LSR
LSR
LSR
LSR
TAX
LDA HEXTAB,X
JSR $FDF0
LDA ADDR3+1
AND #$0F
TAX
LDA HEXTAB,X
JSR $FDF0
LDA ADDR3
AND #$F0
LSR
LSR
LSR
LSR
TAX
LDA HEXTAB,X
JSR $FDF0
LDA ADDR3
AND #$0F
TAX
LDA HEXTAB,X
JSR $FDF0
LDA #186 ; :
JSR $FDF0
LDA #160 ; SPC
JSR $FDF0
LDY #0
:LP
LDA (ADDR3),Y
AND #$F0 ; MASK RIGHT
LSR
LSR
LSR
LSR
STA :LEFT
LDA (ADDR3),Y
AND #$0F ; MASK LEFT
STA :RIGHT
LDX :LEFT
LDA HEXTAB,X
JSR $FDF0
LDX :RIGHT
LDA HEXTAB,X
JSR $FDF0
LDA #160
JSR $FDF0
INY
CPY :LENGTH
BNE :LP
LDA :RET+1
PHA
LDA :RET
PHA
RTS
:RET DS 2
:RIGHT DS 1
:LEFT DS 1
:LENGTH DS 1
__P
PLA
STA ADDR1
PLA
STA ADDR1+1
LDY #1
:LP LDA (ADDR1),Y
BEQ :DONE
JSR $FDF0
INY
BNE :LP
:DONE CLC
TYA
ADC ADDR1
STA ADDR1
LDA ADDR1+1
ADC #0
PHA
LDA ADDR1
PHA
RTS
__W
JSR $FD0C
RTS
__RSAV
STA ERRA
STX ERRX
STY ERRY
:C BCC :C0
BCS :C1
:Z BEQ :Z1
BNE :Z0
:N BMI :N1
BPL :N0
:O BVC :O0
BVS :O1
JMP :EXIT
:C0 LDA #0
STA ERRCARRY
JMP :Z
:C1 LDA #1
STA ERRCARRY
JMP :Z
:Z1 LDA #1
STA ERRZERO
JMP :N
:Z0 LDA #0
STA ERRZERO
JMP :N
:N1 LDA #1
STA ERRNEG
JMP :O
:N0 LDA #0
STA ERRNEG
JMP :O
:O0 LDA #0
STA ERROVF
JMP :EXIT
:O1 LDA #1
STA ERROVF
:EXIT
RTS
__RDMP
_PRNT " ",8D8D
_PRNT "REGISTRY DUMP",8D
_PRNT "=============",8D
_PRNT "A: "
LDA ERRA
AND #$F0 ; MASK RIGHT
LSR
LSR
LSR
LSR
STA :LEFT
LDA ERRA
AND #$0F ; MASK LEFT
STA :RIGHT
LDX :LEFT
LDA HEXTAB,X
JSR $FDF0
LDX :RIGHT
LDA HEXTAB,X
JSR $FDF0
_PRNT " ",8D
_PRNT "X: "
LDA ERRX
AND #$F0 ; MASK RIGHT
LSR
LSR
LSR
LSR
STA :LEFT
LDA ERRX
AND #$0F ; MASK LEFT
STA :RIGHT
LDX :LEFT
LDA HEXTAB,X
JSR $FDF0
LDX :RIGHT
LDA HEXTAB,X
JSR $FDF0
_PRNT " ",8D
_PRNT "Y: "
LDA ERRY
AND #$F0 ; MASK RIGHT
LSR
LSR
LSR
LSR
STA :LEFT
LDA ERRY
AND #$0F ; MASK LEFT
STA :RIGHT
LDX :LEFT
LDA HEXTAB,X
JSR $FDF0
LDX :RIGHT
LDA HEXTAB,X
JSR $FDF0
_PRNT " ",8D8D
_PRNT "STATUS FLAGS",8D
_PRNT "============",8D8D
LDA #0
CMP ERRCARRY
BEQ :CARCLR
_PRNT "CARRY: SET",8D
JMP :TESTN
:CARCLR _PRNT "CARRY: CLEAR",8D
:TESTN LDA #0
CMP ERRNEG
BEQ :NEGCLR
_PRNT "NEGATIVE: SET",8D
JMP :TESTZ
:NEGCLR _PRNT "NEGATIVE: CLEAR",8D
:TESTZ LDA #0
CMP ERRZERO
BEQ :ZCLR
_PRNT "ZERO: SET",8D
JMP :TESTO
:ZCLR _PRNT "ZERO: CLEAR",8D
:TESTO
LDA #0
CMP ERROVF
BEQ :OCLR
_PRNT "OVERFLOW: SET",8D
JMP :FIN
:OCLR _PRNT "OVERFLOW: CLEAR",8D8D8D
:FIN
RTS
:LEFT DS 1
:RIGHT DS 1
HEXTAB ASC "0123456789ABCDEF"
__ERR
0.3.1 updates some minor bugfixes, directory shuffling, added demo and utility disks
2019-01-27 02:02:17 +00:00
LDY #0
LDA (RETADR),Y
STA :RET
INY
LDA (RETADR),Y
STA :RET+1
Disk 4: MATH 0.3.0 updates - separated each subroutine into own file - minor changes to comments - not too many changes for 0.3.0, really. Major changes for this disk will come with 0.5.0
2019-01-21 03:03:35 +00:00
JSR __RSAV
PLA
STA RETADR
PLA
STA RETADR+1
PLA
STA :DUMPLEN ; LENGTH OF DUMP
PLA
STA :DUMP ; DUMP ADDRESS LO
PLA
STA :DUMP+1 ; DUMP HI
PLA
STA :DMPMSG
PLA
STA :DMPMSG+1
PLA
STA :MESG ; ERROR MESSAGE ADDR LO
PLA
STA :MESG+1 ; HI
PLA
STA :SRID ; SUBROUTINE ID ADDR LO
PLA
STA :SRID+1 ; SUB ID HI
_PRNT " ",87878787878D8D
_PRNT "ERROR!",8D8D
_PRNT "SUBROUTINE: "
LDY #0
LDA :SRID
STA ADDR1
LDA :SRID+1
STA ADDR1+1
:LP1
LDA (ADDR1),Y
BEQ :LPX1
JSR $FDF0
INY
BNE :LP1
:LPX1
_PRNT " ",8D
_PRNT "MESSAGE: "
LDY #0
LDA :MESG
STA ADDR1
LDA :MESG+1
STA ADDR1+1
:LP2
LDA (ADDR1),Y
BEQ :LPX2
JSR $FDF0
INY
BNE :LP2
:LPX2
_PRNT " ",8D8D
_WAIT
LDY #0
LDA :DMPMSG
STA ADDR1
LDA :DMPMSG+1
STA ADDR1+1
:LP3
LDA (ADDR1),Y
BEQ :LPX3
JSR $FDF0
INY
BNE :LP3
:LPX3
_PRNT " ",8D
LDA :DUMP+1
PHA
LDA :DUMP
PHA
LDA :DUMPLEN
PHA
JSR __DUMP
_WAIT
LDA RETADR+1
PHA
LDA RETADR
PHA
_PRNT " ",8D8D
_WAIT
_RDUMP
_WAIT
LDA ERRSTOP
CMP #1
BEQ :KILL
RTS
:KILL
0.3.1 updates some minor bugfixes, directory shuffling, added demo and utility disks
2019-01-27 02:02:17 +00:00
_PRNT " ",8D8D
_PRNT "BREAK AT: "
_DUMP :RET;#2
Disk 4: MATH 0.3.0 updates - separated each subroutine into own file - minor changes to comments - not too many changes for 0.3.0, really. Major changes for this disk will come with 0.5.0
2019-01-21 03:03:35 +00:00
JMP $3D0
:DUMPLEN DS 1
:DUMP DS 2
:DMPMSG DS 2
:MESG DS 2
:SRID DS 2
0.3.1 updates some minor bugfixes, directory shuffling, added demo and utility disks
2019-01-27 02:02:17 +00:00
:RET DS 2
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