Apple-2-SW
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IIcSystemClock
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disasm: patches

This commit is contained in:
Joshua Bell 2019-04-21 12:20:19 -07:00
parent 7a7a3ffa33
commit 4a578b395a
1 changed files with 99 additions and 43 deletions
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142
clock.system.s
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@ -120,7 +120,7 @@ L2099 := * + 1
lsr a
sta L22C7
jsr L222B
sta $11FF
sta L11FF
ldx DEVCNT
L20AF: lda DEVLST,x
and #$0F
@ -142,7 +142,7 @@ L20C8: lda DEVLST,x
L20CB: and #%01110000 ; slot
ora #$80
sta L22E3 ; Set $C0nn address
lda $11FE
lda L11FE
and #$03
beq L20E3
cmp #$02
@ -150,13 +150,14 @@ L20CB: and #%01110000 ; slot
lda $07
bne L20EE
beq L20FE
L20E3: ldy #$38
L20E3: ldy #$38 ; offset into patch #1
lda $07
beq L20F0
ldy #$00
ldy #$00 ; offset into patch #2
jmp L20F0
L20EE: ldy #$70
;; Patch bytes on top of driver
L20EE: ldy #$70 ; offset into patch #3
L20F0: ldx #$00
L20F2: lda L22E2,y
sta L2269,x
@ -164,6 +165,7 @@ L20F2: lda L22E2,y
inx
cpx #$38
bne L20F2
L20FE: lda #$02
sta L210F
L2103: jsr L223F
@ -183,7 +185,7 @@ L2111: lda $07
iny
sty L226A
sty L2274
lda $11FE
lda L11FE
and #$03
beq L20FE
sty L229F
@ -196,6 +198,8 @@ L2135: ldy #$07
jsr MON_HOME
jmp L1000
;; --------------------------------------------------
L2145: lda #$00
sta DATELO
sta DATELO+1
@ -213,7 +217,7 @@ L2156: lda #OPC_JMP_abs
lda $0A
cmp #$0B
bcc L2176
bit $11FE
bit L11FE
bpl L2176
sta $1204
L2176: lda $1204
@ -226,13 +230,13 @@ L2176: lda $1204
sbc $1204
bcs L21DF
L218C: bit KBDSTRB
rol $11FE
rol L11FE
lda #$03
cmp $0A
ror $11FE
ror L11FE
L2199: ldy #$05
jsr L10EF
lda $11FF
lda L11FF
jsr PRBYTE
ldy #$06
jsr L10EF
@ -249,11 +253,11 @@ L21A9: jsr RDKEY
asl a
asl a
asl a
sta $11FF
sta L11FF
jsr L238E
and #$0F
ora $11FF
sta $11FF
ora L11FF
sta L11FF
jmp L2199
L21D3: lda $1204
@ -269,7 +273,7 @@ L21DF: lda RWRAM1
sta L22B1
lda DATETIME+2
sta L2203
adc #$00
adc #0
sta L22B2
;; Relocate clock driver
@ -285,7 +289,7 @@ L2203 := * + 2
lda ROMIN2
jmp L1000
L2210: lda $11FF
L2210: lda L11FF
pha
lsr a
lsr a
@ -427,6 +431,15 @@ L22DB := * + 1
.byte $63
.byte $FF
.byte $62
;; End of relocated clock driver
;;; ============================================================
;; Patches applied to driver (length $38, at offset 0)
;; Patch #1
patch1:
L22E2:
L22E3 := * + 1
lda $C0E0 ; Set to $C0x0, n=slot+8
@ -458,6 +471,13 @@ L2307: lda MOUSE_BTN
ldy #$04
dex
bpl L2300
.assert * - patch1 = $38, error, "Patch length"
;; --------------------------------------------------
;; Patch #2
patch2:
.assert * - $38 = L22E2, error, "Offset changed"
lda PORT2_ACIA_COMMAND
nop
ldy #$03
@ -489,8 +509,17 @@ L233A: lda PORT2_ACIA_STATUS
ldy #$04
dex
bpl L2335
nop
nop
.assert * - patch2 = $38, error, "Patch length"
;; --------------------------------------------------
;; Patch #3
patch3:
.assert * - $70 = L22E2, error, "Offset changed"
lda ENVBL
sta ENBXY
sta X0EDGE1
@ -521,13 +550,18 @@ L236B: lda MOUSE_BTN
dex
bpl L2369
lda DISVBL
.assert * - patch3 = $38, error, "Patch length"
;;; ============================================================
L238A: jsr L2265
rts
L238E: jsr RDKEY
cmp #$B0
cmp #'0' | $80
bcc L238E
cmp #$BA
cmp #('9'+1) | $80
bcs L238E
jmp COUT
@ -547,11 +581,11 @@ L239E:
L1000:
ldy #$00
sty $11E8
sty L11E8
iny
sty $04
iny
sty $11E7
sty L11E7
jsr L119F
lda $1C23
sta $02
@ -573,16 +607,16 @@ L1021: ldy #$10
and #$0F
sta $05
tay
ldx #$06
ldx #strlen_str_system - 1
L103A: lda ($00),y
cmp $122E,x
cmp str_system,x
bne L10A8
dey
dex
bpl L103A
ldy #$0C
ldy #strlen_str_clock_system
L1047: lda ($00),y
cmp $1235,y
cmp str_clock_system,y
bne L1053
dey
bne L1047
@ -637,9 +671,9 @@ L10A8: clc
cmp $03
bne L10E2
ldy $1C02
sty $11E7
sty L11E7
lda $1C03
sta $11E8
sta L11E8
bne L10D3
tya
bne L10D3
@ -655,22 +689,25 @@ L10D3: jsr L119F
sta $01
L10E2: jmp L1021
L10E5: lda $11FE
L10E5: lda L11FE
and #$03
bne L10EE
ldy #$09
L10EE: rts
L10EF: lda $1242,y
sta $1109
lda $124E,y
sta $110A
sta L1109
lda L124E,y
sta L1109+1
cpy #$06
beq L1106
cpy #$08
beq L1106
jsr MON_HOME
L1106: ldy #$00
L1109 := *+1
L1108: lda $F000,y
beq L1119
cmp #$E0
@ -682,7 +719,7 @@ L1113: jsr COUT
L1119: rts
L111A: lda #$07
sta $11F9
sta L11F9
ldy #$03
L1121: lda DATELO,y
sta $1203,y
@ -690,7 +727,7 @@ L1121: lda DATELO,y
bpl L1121
lda #OPC_RTS
sta DATETIME
PRODOS_CALL MLI_SET_FILE_INFO, $11F9
PRODOS_CALL MLI_SET_FILE_INFO, L11F9
bne :+
lda #OPC_JMP_abs
@ -707,8 +744,8 @@ L1121: lda DATELO,y
L114F: PRODOS_CALL MLI_OPEN, $11E9
bne L11A8
lda $11EE
sta $11F0
lda L11EE
sta L11F0
PRODOS_CALL MLI_READ, $11EF
bne L11A8
@ -718,8 +755,8 @@ L114F: PRODOS_CALL MLI_OPEN, $11E9
rts
L116E: lda DEVNUM
sta $11DD
sta $11E4
sta L11DD
sta L11E4
PRODOS_CALL MLI_ON_LINE, $11DC
bne L11A8
@ -735,7 +772,7 @@ L116E: lda DEVNUM
PRODOS_CALL MLI_SET_PREFIX, $11E0
bne L11A8
PRODOS_CALL MLI_GET_FILE_INFO, $11F9
PRODOS_CALL MLI_GET_FILE_INFO, L11F9
bne L11A8
rts
@ -769,24 +806,43 @@ L11C7: lda #$02
rts
.byte $02
rts
L11DD: .byte $60
.byte $0C
.byte $12
ora ($0B,x)
.byte $12,$03,$60,$00,$1C,$00,$00,$03
.byte $1D,$12,$00,$1C,$00,$04,$00,$00
.byte $20,$00,$9F,$00,$00,$01,$00,$0A
.byte $01,$0B
.byte $12,$03
L11E4: .byte $60
.byte $00,$1C
L11E7: .byte $00
L11E8: .byte $00
.byte $03
.byte $1D,$12,$00,$1C
L11EE: .byte $00
.byte $04
L11F0: .byte $00
.byte $00
.byte $20,$00,$9F,$00,$00,$01,$00
L11F9: .byte $0A
.byte $35,$12
.res 50, 0
L11FC: .byte 0
L11FD: .byte 0
L11FE: .byte 0
L11FF: .byte 0
.res 46, 0
str_system:
.byte ".SYSTEM"
strlen_str_system = .strlen(".SYSTEM")
str_clock_system:
PASCAL_STRING "CLOCK.SYSTEM"
strlen_str_clock_system = .strlen("CLOCK.SYSTEM")
.byte $5A,$AC,$08,$30,$4D,$64,$77,$87
.byte $AA,$2A,$47,$CD,$12,$12,$13,$13
.byte $AA,$2A,$47,$CD
L124E: .byte $12,$12,$13,$13
.byte $13,$13,$13,$13,$13,$13,$13,$12
HIASCII "Install Clock Driver 1.5"