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ootw: intro: more squishing

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This commit is contained in:
Vince Weaver 2019-03-01 14:03:20 -05:00
parent 2d62c53e60
commit e23fb78f4b
4 changed files with 29 additions and 13 deletions
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12
linker_scripts/apple2_1700.inc Normal file
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@ -0,0 +1,12 @@
MEMORY {
ZP: start = $00, size = $1A, type = rw;
RAM: start = $1700, size = $A900, file = %O;
}
SEGMENTS {
CODE: load = RAM, type = ro, align=$100;
RODATA: load = RAM, type = ro;
DATA: load = RAM, type = rw;
BSS: load = RAM, type = bss, define = yes;
ZEROPAGE: load = ZP, type = zp;
}

12
ootw/Makefile
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@ -10,16 +10,16 @@ all: ootw.dsk
ootw.dsk: HELLO LOADER INTRO OOTW OOTW_C2 COMPRESS-TEST
$(DOS33) -y ootw.dsk SAVE A HELLO
$(DOS33) -y ootw.dsk BSAVE -a 0x1400 LOADER
$(DOS33) -y ootw.dsk BSAVE -a 0x1800 INTRO
$(DOS33) -y ootw.dsk BSAVE -a 0x1800 OOTW
$(DOS33) -y ootw.dsk BSAVE -a 0x1800 OOTW_C2
$(DOS33) -y ootw.dsk BSAVE -a 0x1700 INTRO
$(DOS33) -y ootw.dsk BSAVE -a 0x1700 OOTW
$(DOS33) -y ootw.dsk BSAVE -a 0x1700 OOTW_C2
$(DOS33) -y ootw.dsk BSAVE -a 0x2000 COMPRESS-TEST
####
OOTW: ootw.o
ld65 -o OOTW ootw.o -C ../linker_scripts/apple2_1800.inc
ld65 -o OOTW ootw.o -C ../linker_scripts/apple2_1700.inc
ootw.o: ootw.s \
gr_copy.s gr_fast_clear.s gr_pageflip.s gr_unrle.s gr_putsprite.s \
@ -38,7 +38,7 @@ ootw.o: ootw.s \
####
OOTW_C2: ootw_c2.o
ld65 -o OOTW_C2 ootw_c2.o -C ../linker_scripts/apple2_1800.inc
ld65 -o OOTW_C2 ootw_c2.o -C ../linker_scripts/apple2_1700.inc
ootw_c2.o: ootw_c2.s \
gr_copy.s gr_fast_clear.s gr_pageflip.s gr_unrle.s gr_putsprite.s \
@ -52,7 +52,7 @@ ootw_c2.o: ootw_c2.s \
####
INTRO: intro.o
ld65 -o INTRO intro.o -C ../linker_scripts/apple2_1800.inc
ld65 -o INTRO intro.o -C ../linker_scripts/apple2_1700.inc
intro.o: intro.s \
gr_copy.s gr_fast_clear.s gr_pageflip.s gr_unrle.s gr_putsprite.s \

6
ootw/README
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@ -28,8 +28,8 @@ Memory map:
08-0b GR page1
0c-0f offscreen data ($c00 = disk load buffer)
10-13 offscreen data2
14-17 loader
18-bf program/data (42k)
14-16 loader
17-bf program/data (42.25k)
c0-cf I/O
d0-ff ROM
@ -44,3 +44,5 @@ Memory squeeze!
5,469 over allow changing bg on fly in sequence
4,122 over modify cyan frames to be on fly
2,749 over do same for zappo routines
2,493 over squish disk loader vars to page 3

12
ootw/loader.s
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@ -3,7 +3,9 @@
; the BASIC program sets $05 with which thing to load
nibtbl = $300 ; nothing uses the bottom 128 bytes of $300, do they?
bit2tbl = $380 ; bit2tbl: .res 86 ; = nibtbl+128
filbuf = $3D6 ; filbuf: .res 4 ; = bit2tbl+86
; read any file slot 6 version
; based on FASTLD6 and RTS copyright (c) Peter Ferrie 2011-2013,2018
@ -84,7 +86,7 @@ load_done:
jsr opendir ; open and read entire file into memory
jsr $1800 ; jump to common entry point
jsr $1700 ; jump to common entry point
; hope they updated the WHICH_LOAD value
@ -748,7 +750,7 @@ sectbl: .byte $00,$0d,$0b,$09,$07,$05,$03,$01,$0e,$0c,$0a,$08,$06,$04,$02,$0f
; From $BA96 of DOS33
nibtbl: .res 128 ; = *
;nibtbl: .res 128 ; = *
; .byte $00,$01,$98,$99,$02,$03,$9C,$04 ; $BA96 ; 00
; .byte $05,$06,$A0,$A1,$A2,$A4,$A4,$A5 ; $BA9E ; 08
; .byte $07,$08,$A8,$A9,$AA,$09,$0A,$0B ; $BAA6 ; 10
@ -767,7 +769,7 @@ nibtbl: .res 128 ; = *
; .byte $00,$00,$00,$00,$00,$00,$00,$00
bit2tbl: .res 86 ; = nibtbl+128
filbuf: .res 4 ; = bit2tbl+86
;bit2tbl: .res 86 ; = nibtbl+128
;filbuf: .res 4 ; = bit2tbl+86
;dataend = filbuf+4