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https://github.com/a2stuff/IIcSystemClock.git
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disasm wip
This commit is contained in:
Joshua Bell
parent
93ae124043
commit
420f400eb6
222
clock.system.s
222
clock.system.s
@ -169,8 +169,10 @@ L2095 := * + 1
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L2099 := * + 1
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ldy #$05
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sty $23
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jsr SetPrefixAndCheckSysFile
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lda $1204
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jsr SetPrefixAndGetFileInfo
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lda file_info_params + GET_FILE_INFO_PARAMS::mod_date + 1
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lsr a
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sta year
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jsr ConvertToBCD
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@ -303,28 +305,29 @@ install_clock:
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lda MACHID
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ora #%00000001 ; has clock
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sta MACHID
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bit KBD
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bmi L218C
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bit KBD ; Key pressed?
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bmi skip
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lda month
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cmp #11
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bcc L2176
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bcc :+
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bit L11FE
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bpl L2176
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bpl :+
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sta $1204
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L2176: lda $1204
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: lda $1204
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lsr a
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cmp #(kDefaultYear .mod 100)
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bcc L218C
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bcc skip
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;; Two byte compare
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lda DATELO
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cmp file_info_params + $A ; mod_date
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cmp file_info_params + GET_FILE_INFO_PARAMS::mod_date
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lda DATELO+1
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sbc file_info_params + $A + 1 ; mod_date + 1
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sbc file_info_params + GET_FILE_INFO_PARAMS::mod_date + 1
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bcs L21DF
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L218C: bit KBDSTRB
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skip: bit KBDSTRB
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rol L11FE
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lda #3
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cmp month
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@ -746,50 +749,68 @@ L239E:
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.org $1000
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L1000:
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.proc L1000
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entry_ptr := $00
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entry_length := $02
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entries_per_block := $03
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entry_num := $04
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name_length := $05
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ldy #$00
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sty read_block_block_num+1
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iny
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sty $04
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sty entry_num
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iny
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sty read_block_block_num
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jsr L119F
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lda $1C23
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sta $02
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lda $1C24
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sta $03
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lda #$2B
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sta $00
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lda #$1C
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sta $01
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L1021: ldy #$10
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lda ($00),y
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cmp #$FF
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bne L10A8
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ldy #$00
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lda ($00),y
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and #$30
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beq L10A8
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lda ($00),y
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and #$0F
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sta $05
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jsr ReadBlock
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lda block_buffer + VolumeDirectoryBlockHeader::entry_length
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sta entry_length
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lda block_buffer + VolumeDirectoryBlockHeader::entries_per_block
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sta entries_per_block
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lda #<$1C2B
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sta entry_ptr
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lda #>$1C2B
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sta entry_ptr+1
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entries_loop:
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;; SYS file?
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ldy #FileEntry::file_type
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lda (entry_ptr),y
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cmp #FileType::kSYS
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bne next_entry
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ldy #0
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lda (entry_ptr),y
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and #$30 ; storage_type
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beq next_entry
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;; Check name
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lda (entry_ptr),y
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and #$0F ; name_length
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sta name_length
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;; Does name have ".SYSTEM" suffix?
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tay
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ldx #strlen_str_system - 1
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L103A: lda ($00),y
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: lda (entry_ptr),y
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cmp str_system,x
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bne L10A8
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bne next_entry ; nope, continue
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dey
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dex
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bpl L103A
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bpl :-
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;; Is it "CLOCK.SYSTEM" (i.e. this file)?
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ldy #strlen_str_clock_system
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L1047: lda ($00),y
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: lda (entry_ptr),y
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cmp str_clock_system,y
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bne L1053
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dey
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bne L1047
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beq L10A8
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bne :-
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beq next_entry ; match - (but want *next* system file)
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L1053: lda $05
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sta $121D
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sta open_pathname
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sta $0280
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inc $05
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lda msg_num
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@ -797,70 +818,84 @@ L1053: lda $05
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beq L1070
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ldy #$03
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jsr L10E5
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lda mach_type
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beq L106D
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beq :+
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iny
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L106D: jsr ShowMessage
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: jsr ShowMessage
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L1070: ldy #MessageCode::kRunning
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jsr ShowMessage
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ldy #$01
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L1077: lda ($00),y
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sta $121D,y
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ldy #1
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: lda (entry_ptr),y
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sta open_pathname,y
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sta $0280,y
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ora #$80
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jsr COUT
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iny
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cpy $05
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bne L1077
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bne :-
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jsr LoadSysFile
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lda #$00
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;; Restore text window
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lda #0
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sta WNDTOP
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lda #$18
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lda #24
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sta WNDBTM
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jsr MON_HOME
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lda has_80col
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beq L10A5
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lda #$15
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lda #$15 ; ??? Mousetext?
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jsr COUT
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lda #$8D
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lda #HI(CR)
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jsr COUT
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L10A5: jmp PRODOS_SYS_START
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L10A8: clc
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lda $00
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adc $02
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sta $00
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lda $01
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adc #$00
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sta $01
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inc $04
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lda $04
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cmp $03
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next_entry:
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clc
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lda entry_ptr
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adc entry_length
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sta entry_ptr
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lda entry_ptr+1
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adc #0
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sta entry_ptr+1
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inc entry_num
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lda entry_num
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cmp entries_per_block
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bne L10E2
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ldy $1C02
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ldy block_buffer + VolumeDirectoryBlockHeader::next_block
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sty read_block_block_num
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lda $1C03
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lda block_buffer + VolumeDirectoryBlockHeader::next_block+1
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sta read_block_block_num+1
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bne :+
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bne :+ ; Error if next_block LSB/MSB are both 0
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tya
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bne :+
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ldy #MessageCode::kNoSysFile
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jmp ShowMessageAndMaybeChain
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: jsr L119F
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: jsr ReadBlock
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lda #$00
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sta $04
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lda #$04
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sta $00
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lda #$1C
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sta $01
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L10E2: jmp L1021
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sta entry_num
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lda #$04 ; skip past prev_block/next_block
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sta entry_ptr
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lda #>block_buffer
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sta entry_ptr+1
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L10E2: jmp entries_loop
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L10E5: lda L11FE
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;;; ???
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.proc L10E5
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lda L11FE
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and #$03
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bne L10EE
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bne :+
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ldy #$09
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L10EE: rts
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: rts
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.endproc
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.endproc
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;;; ------------------------------------------------------------
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;;; Call with message number in Y.
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@ -903,7 +938,7 @@ retry:
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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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sta file_info_params + GET_FILE_INFO_PARAMS::mod_date,y
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dey
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bpl :-
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@ -945,36 +980,47 @@ retry:
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.endproc
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;;; ------------------------------------------------------------
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;;; Set prefix to most recently used device's name, and
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;;; get this driver's file info (which holds current year)
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;;; On error, displays the error and chains to next file.
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.proc SetPrefixAndCheckSysFile
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.proc SetPrefixAndGetFileInfo
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lda DEVNUM ; Most recently accessed device
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sta on_line_unit_num
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sta read_block_unit_num
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;; Get the volume name
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PRODOS_CALL MLI_ON_LINE, on_line_params
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bne ShowDiskErrorAndChain
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lda $120C
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and #$0F
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;; Convert to a path
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lda on_line_buffer
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and #$0F ; mask off length
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tay
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iny
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sty $120B
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lda #'/'
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sta $120C
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sty set_prefix_buffer ; increase length by one...
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lda #'/' ; for leading '/'
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sta on_line_buffer
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;; Set the prefix
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PRODOS_CALL MLI_SET_PREFIX, set_prefix_params
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bne ShowDiskErrorAndChain
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;; And get this file's info
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PRODOS_CALL MLI_GET_FILE_INFO, file_info_params
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bne ShowDiskErrorAndChain
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rts
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.endproc
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;;; ------------------------------------------------------------
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;;; Read a block
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;;; On error, displays the error and chains to next file.
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L119F: PRODOS_CALL MLI_READ_BLOCK, read_block_params
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.proc ReadBlock
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PRODOS_CALL MLI_READ_BLOCK, read_block_params
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bne ShowDiskErrorAndChain
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rts
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.endproc
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;;; ------------------------------------------------------------
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@ -1028,23 +1074,25 @@ on_line_params:
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.byte 2 ; param_count
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on_line_unit_num:
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.byte $60 ; unit_num
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.addr $120C ; data_buffer
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.addr on_line_buffer ; data_buffer
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set_prefix_params:
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.byte 1 ; param_count
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.addr $120B ; pathname
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.addr set_prefix_buffer ; pathname
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block_buffer = $1C00
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read_block_params:
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.byte 3 ; param_count
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read_block_unit_num:
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.byte $60 ; unit_num
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.addr $1C00 ; data_buffer
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.addr block_buffer ; data_buffer
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read_block_block_num:
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.word $0000 ; block_num
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open_params:
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.byte 3 ; param_count
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.addr $121D ; pathname
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.addr open_pathname ; pathname
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.addr $1C00 ; io_buffer
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open_params_ref_num:
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.byte 0 ; ref_num
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@ -1078,6 +1126,10 @@ L1200:
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;; buffer for variables, filename
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.res 46, 0
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set_prefix_buffer := $120B
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on_line_buffer := set_prefix_buffer+1
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open_pathname := $121D
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str_system:
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.byte ".SYSTEM"
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strlen_str_system = .strlen(".SYSTEM")
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51
common.inc
51
common.inc
@ -58,20 +58,47 @@ MLI_CLOSE := $CC
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;;; Volume Directory Block Header structure
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.scope VolumeDirectoryBlockHeader
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prev_block := $00
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next_block := $02
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entry_length := $23
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entries_per_block := $24
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header_length := $2B
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prev_block = $00
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next_block = $02
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entry_length = $23
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entries_per_block = $24
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header_length = $2B
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.endscope
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;; File Entry structure
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.scope FileEntry
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storage_type := $00
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name_length := $00
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file_name := $01
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file_type := $10
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.endscope
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;; File Entry structure
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.struct FileEntry
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storage_type_name_length .byte
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file_name .res 15
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file_type .byte
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key_pointer .word
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blocks_used .word
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EOF .faraddr
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creation .dword
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version .byte
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min_version .byte
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access .byte
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aux_type .word
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last_mod .dword
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header_pointer .word
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.endstruct
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.struct GET_FILE_INFO_PARAMS
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param_count .byte
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pathname .word
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access .byte
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file_type .byte
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aux_type .word
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storage_type .byte
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blocks_used .word
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mod_date .word
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mod_time .word
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create_date .word
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create_time .word
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.endstruct
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.enum FileType
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kSYS = $FF
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.endenum
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;;; ------------------------------------------------------------
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;;; Monitor
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