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https://github.com/a2stuff/IIcSystemClock.git
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disasm wip
This commit is contained in:
Joshua Bell
parent
2304490978
commit
93ae124043
103
clock.system.s
103
clock.system.s
@ -21,6 +21,8 @@
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kRemoveWriteProtect = 11
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.endenum
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kErrDiskWriteProtected = $2B
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;;; Zero Page Locations
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mach_type := $07 ; 0 = IIc, 1 = II+/IIe
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@ -134,25 +136,25 @@ init_80_col:
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;; End signature is two adjacent $FFs
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loop:
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L2072 := * + 2
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read_msb := * + 2
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lda L239E,y
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cmp #$FF
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bne L207E
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bne :+
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L2079 := * + 2
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check_msb := * + 2 ; check for second $FF
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ldx L239E+1,y
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cpx #$FF
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beq L208F
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L207E:
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L2080 := * + 2
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beq L208F ; done!
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:
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write_msb := * + 2
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sta L1000,y
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iny
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bne loop
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inc L2072
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inc L2079
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inc L2080
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inc read_msb
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inc check_msb
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inc write_msb
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bne loop ; always
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.endproc
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@ -171,7 +173,7 @@ L2099 := * + 1
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lda $1204
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lsr a
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sta year
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jsr convert_to_bcd
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jsr ConvertToBCD
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sta bcd_year
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;; --------------------------------------------------
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@ -312,12 +314,14 @@ install_clock:
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sta $1204
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L2176: lda $1204
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lsr a
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cmp #$56
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cmp #(kDefaultYear .mod 100)
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bcc L218C
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;; Two byte compare
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lda DATELO
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cmp $1203
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cmp file_info_params + $A ; mod_date
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lda DATELO+1
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sbc $1204
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sbc file_info_params + $A + 1 ; mod_date + 1
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bcs L21DF
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L218C: bit KBDSTRB
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@ -329,7 +333,7 @@ L218C: bit KBDSTRB
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;; --------------------------------------------------
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;; Show current year prompt
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.scope
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show_year_prompt:
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retry:
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ldy #MessageCode::kCurrentYear
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jsr ShowMessage
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@ -351,26 +355,26 @@ show_year_prompt:
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ldy #MessageCode::kCurrentYear
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jsr ShowMessage
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jsr GetDigitKey ; Decade
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asl a
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asl a ; move tens digit to high nibble
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asl a
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asl a
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asl a
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sta bcd_year
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jsr GetDigitKey ; Year
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and #$0F
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and #$0F ; mask ones digit
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ora bcd_year
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sta bcd_year
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jmp show_year_prompt
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jmp retry
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.endscope
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;; --------------------------------------------------
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;; Current year is okay
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year_ok:
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lda $1204
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jsr year_from_bcd
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jsr YearFromBCD
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jsr InvokeDriver
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jsr L111A
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jsr WriteFileInfo
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L21DF: lda RWRAM1 ; Driver lives in LC Bank 1
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lda RWRAM1 ; so bank that in
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@ -406,7 +410,7 @@ install_ptr := * + 1
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;;; Output: year
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;;; $06 is trashed
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.proc year_from_bcd
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.proc YearFromBCD
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lda bcd_year
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pha
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lsr a
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@ -433,7 +437,7 @@ install_ptr := * + 1
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;;; Output: A = BCD number
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;;; $06 is trashed
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.proc convert_to_bcd
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.proc ConvertToBCD
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ldx #$FF
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: inx
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sec
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@ -889,30 +893,40 @@ done: rts
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.endproc
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;;; ------------------------------------------------------------
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;;; Write current date/time to a file.
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L111A: lda #$07 ; SET_FILE_INFO count
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.proc WriteFileInfo
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retry:
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lda #7 ; SET_FILE_INFO count
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sta file_info_params
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ldy #$03
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L1121: lda DATELO,y
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sta $1203,y
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;; Fill params with current date/time.
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ldy #3
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: lda DATELO,y
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sta file_info_params + $A,y ; mod_date
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dey
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bpl L1121
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lda #OPC_RTS
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bpl :-
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lda #OPC_RTS ; Temporarily disable driver
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sta DATETIME
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PRODOS_CALL MLI_SET_FILE_INFO, file_info_params
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bne :+
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lda #OPC_JMP_abs
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lda #OPC_JMP_abs ; Re-enable driver
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sta DATETIME
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rts
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: cmp #$2B
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bne ShowDiskErrorAndChain
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;; Error; maybe retry?
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: cmp #kErrDiskWriteProtected
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bne ShowDiskErrorAndChain ; Failed
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;; Write protected - show error and retry
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ldy #MessageCode::kRemoveWriteProtect
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jsr ShowMessage
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jsr L11C3
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jsr Bell
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jsr RDKEY
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jmp L111A
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jmp retry
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.endproc
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;;; ------------------------------------------------------------
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@ -975,7 +989,7 @@ L119F: PRODOS_CALL MLI_READ_BLOCK, read_block_params
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.proc ShowMessageAndMaybeChain
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sty msg_num
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jsr ShowMessage
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jsr L11C3
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jsr Bell
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lda msg_num
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cmp #MessageCode::kNoClock
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bne loop
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@ -987,18 +1001,25 @@ loop: jmp loop ; Infinite loop!
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.endproc
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;;; ------------------------------------------------------------
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;;; Make a tone (from ProDOS Technical Reference Manual)
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;;; $0C is trashed
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L11C3: lda #$20
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sta $0C
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L11C7: lda #$02
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.proc Bell
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length := $0C
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lda #$20 ; duration of tone
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sta length
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bell1: lda #$2 ; short delay...click
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jsr WAIT
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sta SPKR
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lda #$24
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lda #$24 ; long delay...click ($20 in TRM)
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jsr WAIT
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sta SPKR
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dec $0C
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bne L11C7
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dec length
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bne bell1 ; repeat length times
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rts
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.endproc
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;;; ------------------------------------------------------------
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;;; MLI call params
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