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https://github.com/deater/dos33fsprogs.git
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ootw: revamp loader, add ability to run checkpoint4
This commit is contained in:
Vince Weaver
parent
c5abc3e845
commit
0ce1287efc
@ -7,11 +7,12 @@ PNG2LZ4 = ../gr-utils/png2lz4
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all: ootw.dsk
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ootw.dsk: HELLO LOADER INTRO OOTW OOTW_C2 OOTW_C3 OOTW_C4
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ootw.dsk: HELLO LOADER INTRO OOTW_C1 OOTW_C2 OOTW_C3 OOTW_C4
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cp empty.dsk ootw.dsk
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$(DOS33) -y ootw.dsk SAVE A HELLO
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$(DOS33) -y ootw.dsk BSAVE -a 0x1400 LOADER
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$(DOS33) -y ootw.dsk BSAVE -a 0x1700 INTRO
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$(DOS33) -y ootw.dsk BSAVE -a 0x1700 OOTW
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$(DOS33) -y ootw.dsk BSAVE -a 0x1700 OOTW_C1
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$(DOS33) -y ootw.dsk BSAVE -a 0x1700 OOTW_C2
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$(DOS33) -y ootw.dsk BSAVE -a 0x1700 OOTW_C3
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$(DOS33) -y ootw.dsk BSAVE -a 0x1700 OOTW_C4
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@ -21,8 +22,8 @@ ootw.dsk: HELLO LOADER INTRO OOTW OOTW_C2 OOTW_C3 OOTW_C4
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####
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OOTW: ootw_c1.o
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ld65 -o OOTW ootw_c1.o -C ../linker_scripts/apple2_1700.inc
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OOTW_C1: ootw_c1.o
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ld65 -o OOTW_C1 ootw_c1.o -C ../linker_scripts/apple2_1700.inc
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ootw_c1.o: ootw_c1.s \
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gr_copy.s gr_fast_clear.s gr_pageflip.s gr_unrle.s \
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@ -238,7 +239,8 @@ compress_test.o: compress_test.s lz4_decode.s compress_test.inc
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#####
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clean:
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rm -f *~ *.o *.lst *.lz4 HELLO OOTW OOTW_C2 INTRO LOADER \
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rm -f *~ *.o *.lst *.lz4 HELLO \
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OOTW_C1 OOTW_C2 OOTW_C3 OOTW_C4 INTRO LOADER \
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COMPRESS-TEST AUDIO_TEST \
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intro_data_01 intro_data_04 intro_data_06 \
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intro_data_08 intro_data_09
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BIN
ootw/empty.dsk
Normal file
BIN
ootw/empty.dsk
Normal file
Binary file not shown.
@ -19,8 +19,8 @@
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130 PRINT "2). START AT CHECKPOINT 2 (RAGE)"
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135 PRINT "3). START AT CHECKPOINT 3 (VENT)"
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140 INPUT A
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150 IF A < 0 OR A > 3 THEN 5
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155 IF A=1 OR A=2 OR A=3 THEN GOSUB 300
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150 IF A < 0 OR A > 4 THEN 5
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155 IF A=1 OR A=2 OR A=3 OR A=4 THEN GOSUB 300
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160 POKE 5,A
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200 PRINT CHR$ (4)"BRUN LOADER"
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300 HOME
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124
ootw/loader.s
124
ootw/loader.s
@ -28,6 +28,8 @@ filbuf = $3D6 ; filbuf: .res 4 ; = bit2tbl+86
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step = $fd ; state for stepper motor
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tmptrk = $fe ; temporary copy of current track
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phase = $ff ; current phase for /seek
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OUTL = $fe ; for picking filename
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OUTH = $ff
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dirbuf = $c00
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; note, don't put this immediately below
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@ -45,89 +47,81 @@ start:
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;======================
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which_load_loop:
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ldy WHICH_LOAD
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lda filenames_low,Y
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sta OUTL
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lda filenames_high,Y
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sta OUTH
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lda WHICH_LOAD
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cmp #1
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beq load_ootw_cp1
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cmp #2
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beq load_ootw_cp2
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cmp #3
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beq load_ootw_cp3
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opendir_filename:
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; fall through
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; clear out the filename with $A0 (space)
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load_intro:
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; open and read a file
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lda #<intro_filename
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lda #<filename
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sta namlo
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lda #>intro_filename
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sta namhi
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jmp load_done
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load_ootw_cp1:
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; open and read a file
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lda #<ootw_filename
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sta namlo
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lda #>ootw_filename
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sta namhi
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jmp load_done
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load_ootw_cp2:
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; open and read a file
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lda #<ootw_c2_filename
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sta namlo
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lda #>ootw_c2_filename
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sta namhi
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jmp load_done
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load_ootw_cp3:
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; open and read a file
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lda #<ootw_c3_filename
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sta namlo
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lda #>ootw_c3_filename
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lda #>filename
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sta namhi
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; fall through
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ldy #29
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wipe_filename_loop:
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lda #$A0
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sta (namlo),Y
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dey
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bpl wipe_filename_loop
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ldy #0
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copy_filename_loop:
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lda (OUTL),Y
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beq copy_filename_done
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ora #$80
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sta (namlo),Y
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iny
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bne copy_filename_loop
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load_done:
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copy_filename_done:
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jsr opendir ; open and read entire file into memory
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jsr $1700 ; jump to common entry point
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; hope they updated the WHICH_LOAD value
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jmp which_load_loop
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jmp which_load_loop
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; filename to open is 30-character Apple text:
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intro_filename: ;.byte "INTRO "
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.byte 'I'|$80,'N'|$80,'T'|$80,'R'|$80,'O'|$80,$A0,$A0,$A0
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.byte $A0,$A0,$A0,$A0,$A0,$A0,$A0,$A0
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.byte $A0,$A0,$A0,$A0,$A0,$A0,$A0,$A0
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.byte $A0,$A0,$A0,$A0,$A0,$A0
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; filename to open is 30-character Apple text, must be padded with space ($A0)
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filename:
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.byte $A0,$A0,$A0,$A0,$A0,$A0,$A0,$A0,$A0,$A0
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.byte $A0,$A0,$A0,$A0,$A0,$A0,$A0,$A0,$A0,$A0
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.byte $A0,$A0,$A0,$A0,$A0,$A0,$A0,$A0,$A0,$A0
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ootw_filename: ;.byte "OOTW "
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.byte 'O'|$80,'O'|$80,'T'|$80,'W'|$80,$A0,$A0,$A0,$A0
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.byte $A0,$A0,$A0,$A0,$A0,$A0,$A0,$A0
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.byte $A0,$A0,$A0,$A0,$A0,$A0,$A0,$A0
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.byte $A0,$A0,$A0,$A0,$A0,$A0
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filenames_low:
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.byte <intro_filename
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.byte <ootw_c1_filename
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.byte <ootw_c2_filename
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.byte <ootw_c3_filename
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.byte <ootw_c4_filename
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ootw_c2_filename: ;.byte "OOTW_C2 "
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.byte 'O'|$80,'O'|$80,'T'|$80,'W'|$80,'_'|$80,'C'|$80,'2'|$80,$A0
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.byte $A0,$A0,$A0,$A0,$A0,$A0,$A0,$A0
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.byte $A0,$A0,$A0,$A0,$A0,$A0,$A0,$A0
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.byte $A0,$A0,$A0,$A0,$A0,$A0
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filenames_high:
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.byte >intro_filename
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.byte >ootw_c1_filename
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.byte >ootw_c2_filename
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.byte >ootw_c3_filename
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.byte >ootw_c4_filename
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intro_filename:
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.byte "INTRO",0
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ootw_c1_filename:
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.byte "OOTW_C1",0
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ootw_c2_filename:
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.byte "OOTW_C2",0
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ootw_c3_filename:
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.byte "OOTW_C3",0
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ootw_c4_filename:
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.byte "OOTW_C4",0
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ootw_c3_filename: ;.byte "OOTW_C3 "
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.byte 'O'|$80,'O'|$80,'T'|$80,'W'|$80,'_'|$80,'C'|$80,'3'|$80,$A0
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.byte $A0,$A0,$A0,$A0,$A0,$A0,$A0,$A0
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.byte $A0,$A0,$A0,$A0,$A0,$A0,$A0,$A0
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.byte $A0,$A0,$A0,$A0,$A0,$A0
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;unhook DOS and build nibble table
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