ZInfo for Z3

This commit is contained in:
Peter Ferrie 2018-04-13 13:22:46 -07:00
parent be0740a5e6
commit 8923d36b9a
3 changed files with 821 additions and 0 deletions

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@ -31,6 +31,7 @@ asm: md
$(ACME) -r build/zinfo.system.lst src/zinfo/zinfo.system.s
$(ACME) -r build/zinfo1.lst src/zinfo/z1/z1.s
$(ACME) -r build/zinfo2.lst src/zinfo/z2/z2.s
$(ACME) -r build/zinfo3.lst src/zinfo/z3/z3.s
dsk: md asm
cp res/"Pitch Dark.master games collection.do.not.edit.2mg" build/"$(DISK)"
@ -50,6 +51,7 @@ dsk: md asm
$(CADIUS) ADDFILE build/"$(DISK)" "/PITCH.DARK/LIB/" "build/ONBEYONDZ5U"
$(CADIUS) ADDFILE build/"$(DISK)" "/PITCH.DARK/LIB/" "build/ZINFO1"
$(CADIUS) ADDFILE build/"$(DISK)" "/PITCH.DARK/LIB/" "build/ZINFO2"
$(CADIUS) ADDFILE build/"$(DISK)" "/PITCH.DARK/LIB/" "build/ZINFO3"
# TODO remove these save game files, just here for development
$(CADIUS) ADDFILE build/"$(DISK)" "/PITCH.DARK/Z/WISHBRINGER/" "res/R69.850920.SAV"
$(CADIUS) ADDFILE build/"$(DISK)" "/PITCH.DARK/Z/ZORK.I/" "res/R88.840726.SAV"

817
src/zinfo/z3/z3.s Normal file
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@ -0,0 +1,817 @@
;license:MIT
;(c) 2018 by qkumba
!cpu 6502
!to "build/zinfo3#063000",plain
*=$3000
save_name = $2006
read_buffer = $3500 ;512 bytes
file_buffer = $3900 ;$400 bytes, must not overlap with read_buffer, must be page-aligned
record_size = $40
info_buffer = $2000 ;record_size*8 (currently $200) bytes, can be anywhere
zpage_info = $fe ;word
zpage_ptr = $fd
name_offset = 0 ;1+37 bytes
time_offset = 42 ;1+8 bytes ("12:01 pm")
score_offset = 51 ;1+6 bytes (-12345)
moves_offset = 58 ;1+5 bytes (12345)
;zpage used by Infocom code
zp_8C = $8c
zp_8D = $8d
zp_8E = $8e
zp_8F = $8f
zp_9C = $9c
zp_9D = $9d
zp_9E = $9e
zp_9F = $9f
zp_A0 = $a0
zp_A1 = $a1
zp_AC = $ac
zp_AD = $ad
zp_B0 = $b0
zp_B1 = $b1
zp_B2 = $b2
zp_B3 = $b3
zp_C0 = $c0
zp_C9 = $c9
zp_CA = $ca
zp_CB = $cb
zp_CC = $cc
zp_CD = $cd
zp_CE = $ce
zp_CF = $cf
zp_D3 = $d3
zp_D4 = $d4
zp_D5 = $d5
zp_D6 = $d6
zp_D7 = $d7
zp_D8 = $d8
zp_DB = $db
zp_DC = $dc
jsr $bf00
!byte $c8 ;open file
!word c8_parms
lda c8_handle
sta ce_handle
sta ca_handle
jsr exchange
lda #>info_buffer
sta zpage_info+1
lda #<info_buffer
sta zpage_info
zero_info
ldy #name_offset
sty zpage_ptr
!if name_offset=0 {
tya
} else {
lda #0
}
sta (zpage_info),y
clc
lda zpage_info
adc #record_size
sta zpage_info
bcc +
inc zpage_info+1
+ inc index+1
index
lda #0
cmp #8
bcc zero_info
lda #>info_buffer
sta zpage_info+1
lda #<info_buffer
sta zpage_info
;position to file offset
fetch_info
position
lda #0
ldx #0
stx ce_offset+2
asl
asl
asl
asl
sec
rol
rol ce_offset+2
sec
rol
sta ce_offset+1
sta ce_base1+1
rol ce_offset+2
lda ce_offset+2
sta ce_base2+1
jsr seekread
bcs nextpos
ldy #name_offset
sty zpage_ptr
jsr dump_info
nextpos
clc
lda zpage_info
adc #record_size
sta zpage_info
bcc +
inc zpage_info+1
+ inc position+1
lda position+1
cmp #8
bcc fetch_info
jsr $bf00
!byte $cc ;close file
!word cc_parms
exchange
ldx #(zp_DC-zp_8C)
- ldy zpage_old-1,x
lda zp_8C-1,x
sty zp_8C-1,x
sta zpage_old-1,x
dex
bne -
quit
rts
load_page
cmp zp_C0
beq seek_ret
sta zp_C0
clc
ce_base1
adc #0
sta ce_offset+1
lda #0
ce_base2
adc #0
sta ce_offset+2
seekread
jsr $bf00
!byte $ce ;seek
!word ce_parms
bcs seek_ret
jsr $bf00
!byte $ca ;read file
!word ca_parms
seek_ret
rts
c7_parms
!byte 1
!word $200
c5_parms
!byte 2
!byte 0
!word $201
c8_parms
!byte 3
!word save_name
!word file_buffer
c8_handle
!byte 0
ce_parms
!byte 2
ce_handle
!byte 0
ce_offset
!byte 0,0,0
ca_parms
!byte 4
ca_handle
!byte 0
ca_offset
!word read_buffer
ca_size
!word $200
!word $ffff
cc_parms
!byte 1
!byte 0
dump_info
tsx
stx stack_pointer+1
;set up pointers for decompression and "score" display
lda #0
sta zp_C0
lda read_buffer+1
and #2
sta zp_DC
lda read_buffer+$0d
sta zp_AC
lda read_buffer+$0c
sta zp_AD
lda read_buffer+$19
sta zp_B0
lda read_buffer+$18
sta zp_B1
lda read_buffer+$0b
sta zp_B2
lda read_buffer+$0a
sta zp_B3
;dump info, actual Infocom code in upper-case
lda #42
sta max_chars
LDA #$10 ; location
JSR fetch_obj
LDA zp_8C
JSR decompress
lda zpage_ptr
!if name_offset>0 {
sec
sbc #name_offset
}
ldy #name_offset
sta (zpage_info),y
ldy #time_offset
sty zpage_ptr
lda #0
sta max_chars ;can't overflow anymore
sta (zpage_info),y
LDA #$11 ; score
JSR fetch_obj
LDA zp_DC
BNE loc_1627
ldy #score_offset
sty zpage_ptr
LDA zp_8C
STA zp_D3
LDA zp_8D
STA zp_D4
JSR sub_215D
sec
lda zpage_ptr
sbc #score_offset
ldy #score_offset
sta (zpage_info),y
JMP loc_165F
loc_1627:
LDA zp_8C
BNE loc_164B
LDA #$18
loc_164B:
CMP #$0D
BCC loc_1651
SBC #$0C
loc_1651:
STA zp_D3
LDA #$00
STA zp_D4
JSR sub_215D
LDA #$3A
JSR emit_char
loc_165F:
LDA #$12 ; moves or minutes
JSR fetch_obj
LDA zp_8C
STA zp_D3
LDA zp_8D
STA zp_D4
LDA zp_DC
BNE loc_1676
ldy #moves_offset
sty zpage_ptr
JSR sub_215D
sec
lda zpage_ptr
sbc #moves_offset
ldy #moves_offset
sta (zpage_info),y
rts
loc_1676:
LDA zp_8C
CMP #$0A
BCS loc_1681
LDA #$30
JSR emit_char
loc_1681:
JSR sub_215D
LDA #$20
JSR emit_char
LDA #$11 ; hours
JSR fetch_obj
LDA zp_8C
CMP #$0C
BCS loc_1698
LDA #$61
BNE loc_169A
loc_1698:
LDA #$70
loc_169A:
JSR emit_char
LDA #$6D
JSR emit_char
sec
lda zpage_ptr
sbc #time_offset
ldy #time_offset
sta (zpage_info),y
rts
loc_1459:
jmp * ;internal error
fetch_obj:
JSR sub_1A70
lda zp_8F
pha
jsr load_page
lda #>read_buffer
sta zp_8F
LDA (zp_8E),Y
STA zp_8D
INY
LDA (zp_8E),Y
STA zp_8C
pla
sta zp_8F
RTS
sub_1A70:
SEC
SBC #$10
LDY #0
STY zp_8F
ASL
ROL zp_8F
CLC
ADC zp_AC
STA zp_8E
LDA zp_8F
ADC zp_AD
STA zp_8F
locret_1A85:
RTS
decompress:
JSR sub_26A0
LDY #7
jsr load_page
lda #>read_buffer
sta zp_8F
LDA (zp_8E),Y
TAX
INY
LDA (zp_8E),Y
STA zp_8E
STX zp_8F
INC zp_8E
BNE loc_1D23
INC zp_8F
loc_1D23:
JSR sub_2474
JMP sub_2495
sub_1FE2:
LDA #0
SEC
SBC zp_D3
STA zp_D3
LDA #0
SBC zp_D4
STA zp_D4
RTS
sub_1FF0:
LDA zp_D5
ORA zp_D6
BEQ loc_2021
JSR sub_2026
loc_1FF9:
ROL zp_D3
ROL zp_D4
ROL zp_D7
ROL zp_D8
LDA zp_D7
SEC
SBC zp_D5
TAY
LDA zp_D8
SBC zp_D6
BCC loc_2011
STY zp_D7
STA zp_D8
loc_2011:
DEX
BNE loc_1FF9
ROL zp_D3
ROL zp_D4
LDA zp_D7
STA zp_D5
LDA zp_D8
STA zp_D6
RTS
loc_2021:
LDA #8
JMP loc_1459
sub_2026:
LDX #$10
LDA #0
STA zp_D7
STA zp_D8
CLC
RTS
sub_215D:
LDA zp_D4
BPL loc_2169
LDA #$2D
JSR emit_char
JSR sub_1FE2
loc_2169:
LDA #0
STA zp_DB
loc_216D:
LDA zp_D3
ORA zp_D4
BEQ loc_2185
LDA #$A
STA zp_D5
LDA #0
STA zp_D6
JSR sub_1FF0
LDA zp_D5
PHA
INC zp_DB
BNE loc_216D
loc_2185:
LDA zp_DB
BNE loc_218E
LDA #$30
JMP emit_char
loc_218E:
PLA
CLC
ADC #$30
JSR emit_char
DEC zp_DB
BNE loc_218E
RTS
sub_237E:
LDA zp_9D
STA zp_A1
LDX #$FF
STX zp_9F
INX
STX zp_A0
loc_23A0:
LDY zp_9C
lda zp_A1
pha
jsr load_page
lda #>read_buffer
sta zp_A1
LDA (zp_A0),Y
INC zp_9C
BNE loc_23B2
LDY #0
STY zp_9F
INC zp_9D
BNE loc_23B2
INC zp_9E
loc_23B2:
TAY
pla
sta zp_A1
tya
RTS
sub_2474:
LDA zp_8E
STA zp_9C
LDA zp_8F
STA zp_9D
LDA #0
STA zp_9E
STA zp_9F
RTS
sub_2483:
LDA zp_8E
ASL
STA zp_9C
LDA zp_8F
ROL
STA zp_9D
LDA #0
STA zp_9F
ROL
STA zp_9E
locret_2494:
RTS
sub_2495:
LDX #0
STX zp_C9
STX zp_CD
DEX
STX zp_CA
loc_249E:
JSR sub_2569
BCS locret_2494
STA zp_CB
TAX
BEQ loc_24E9
CMP #4
BCC loc_2507
CMP #6
BCC loc_24ED
JSR sub_255D
TAX
BNE loc_24C1
LDA #$5B
loc_24B8:
CLC
ADC zp_CB
loc_24BB:
JSR emit_char
JMP loc_249E
loc_24C1:
CMP #1
BNE loc_24C9
LDA #$3B
BNE loc_24B8
loc_24C9:
LDA zp_CB
SEC
SBC #6
BEQ loc_24D7
TAX
LDA byte_2686,X
JMP loc_24BB
loc_24D7:
JSR sub_2569
ASL
ASL
ASL
ASL
ASL
STA zp_CB
JSR sub_2569
ORA zp_CB
JMP loc_24BB
loc_24E9:
LDA #$20
BNE loc_24BB
loc_24ED:
SEC
SBC #3
TAY
JSR sub_255D
BNE loc_24FB
STY zp_CA
JMP loc_249E
loc_24FB:
STY zp_C9
CMP zp_C9
BEQ loc_249E
LDA #0
STA zp_C9
BEQ loc_249E
loc_2507:
SEC
SBC #1
ASL
ASL
ASL
ASL
ASL
ASL
STA zp_CC
JSR sub_2569
ASL
CLC
ADC zp_CC
TAY
lda zp_B1
pha
jsr load_page
lda #>read_buffer
sta zp_B1
LDA (zp_B0),Y
STA zp_8F
INY
LDA (zp_B0),Y
STA zp_8E
pla
sta zp_B1
LDA zp_9E
PHA
LDA zp_9D
PHA
LDA zp_9C
PHA
LDA zp_C9
PHA
LDA zp_CD
PHA
LDA zp_CF
PHA
LDA zp_CE
PHA
JSR sub_2483
JSR sub_2495
PLA
STA zp_CE
PLA
STA zp_CF
PLA
STA zp_CD
PLA
STA zp_C9
PLA
STA zp_9C
PLA
STA zp_9D
PLA
STA zp_9E
LDX #$FF
STX zp_CA
INX
STX zp_9F
JMP loc_249E
sub_255D:
LDA zp_CA
BPL loc_2564
LDA zp_C9
RTS
loc_2564:
LDY #$FF
STY zp_CA
RTS
sub_2569:
LDA zp_CD
BPL loc_256F
SEC
RTS
loc_256F:
BNE loc_2584
INC zp_CD
JSR sub_237E
STA zp_CF
JSR sub_237E
STA zp_CE
LDA zp_CF
LSR
LSR
JMP loc_25AD
loc_2584:
SEC
SBC #1
BNE loc_259F
LDA #2
STA zp_CD
LDA zp_CE
STA zp_8E
LDA zp_CF
ASL zp_8E
ROL
ASL zp_8E
ROL
ASL zp_8E
ROL
JMP loc_25AD
loc_259F:
LDA #0
STA zp_CD
LDA zp_CF
BPL loc_25AB
LDA #$FF
STA zp_CD
loc_25AB:
LDA zp_CE
loc_25AD:
AND #$1F
CLC
RTS
byte_2686:
!BYTE 0, $D, '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '.', ',', '!', '?', '_'
!BYTE '#', $27, '"', '/', $5C, '-', ':', '(', ')'
sub_26A0:
STA zp_8E
LDX #0
STX zp_8F
ASL
ROL zp_8F
ASL
ROL zp_8F
ASL
ROL zp_8F
CLC
ADC zp_8E
BCC loc_26B6
INC zp_8F
loc_26B6:
CLC
ADC #$35
BCC loc_26BD
INC zp_8F
loc_26BD:
CLC
ADC zp_B2
STA zp_8E
LDA zp_8F
ADC zp_B3
STA zp_8F
RTS
emit_char
sty yreg+1
inc zpage_ptr
ldy zpage_ptr
sta (zpage_info),y
dec max_chars
beq fail_slot
yreg
ldy #0
rts
fail_slot
stack_pointer
ldx #0
txs
rts
max_chars !byte 0
zpage_old
!if *+(zp_DC-zp_8C)>=read_buffer {
!error "Code is too large"
}

View File

@ -21,6 +21,7 @@ acme -r build\z5u.lst src\onbeyond\z5u\z5u.s
acme -r build\zinfo.system.lst src\zinfo\zinfo.system.s
acme -r build\zinfo1.lst src\zinfo\z1\z1.s
acme -r build\zinfo2.lst src\zinfo\z2\z2.s
acme -r build\zinfo3.lst src\zinfo\z3\z3.s
goto :EOF
)
@ -46,6 +47,7 @@ cadius ADDFILE "build\%DISK%" "/PITCH.DARK/LIB/" "build\ONBEYONDZ5"
cadius ADDFILE "build\%DISK%" "/PITCH.DARK/LIB/" "build\ONBEYONDZ5U"
cadius ADDFILE "build\%DISK%" "/PITCH.DARK/LIB/" "build\ZINFO1"
cadius ADDFILE "build\%DISK%" "/PITCH.DARK/LIB/" "build\ZINFO2"
cadius ADDFILE "build\%DISK%" "/PITCH.DARK/LIB/" "build\ZINFO3"
if not "%1" equ "" set DISK=
goto :EOF
)