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;[FC][最终任务mapper1切页程序]" {- W& u. g8 |& { c4 j
.ORG $CD9B
, ]$ ]1 Q# D: x" S5 VBANK_START:
5 b+ n7 x! Q1 {( ], X STA $70
, i) u P4 `/ ^# l TXA( p5 I5 h; t8 J$ ^* v3 `
ASL5 }. d" D1 D: V! I9 Q
TAX2 L4 P. v5 p$ F9 g0 v7 m8 a. a. L
PORT_SET:
9 O U( d7 p' _( I8 x LDA BANK_DATA,X
! ]" ~( I2 A1 e$ y; W STA $6E
' M3 f8 V7 }' B w LDA $CDB8,X+ |% M! n5 P. p% {# J M( D
STA $6F
2 C# |( a- |" ?) j% g, [- Y LDY #$00% F7 B: s7 P4 B M. d3 Q& ~& }2 p
LDX #$05
" n7 K+ Y) |/ r. b2 L LDA $708 W* [3 I- P# @( m+ ]# v, X& b1 T
PORT_WRITE:
$ ~' R; C0 `( l STA ($6E),Y
9 o5 d9 f J( n( Y% c+ j LSR$ F' v0 `7 w" P' G" X( ~0 {
DEX
8 Y- i% A: m9 p/ J" D$ O BNE PORT_WRITE) d2 Y% ?4 u5 {* X) X: a) i
RTS. j* V5 c, H" c& ]6 k
# o5 S& Q- A) i
7 Q0 I- j) }8 L3 K/ JBANK_DATA:
; Q3 Y* y- J, o9 ?- ^3 h) F5 e .BYTE $00,$80,$FF,$BF,$00,$C0,$FF,$FF
4 \6 U3 J, }; e2 V" J
) b2 t" s" X0 L9 s! b
' m3 ?/ m* G: ~; f# R/ c5 J2 i( h: Q;[FC][最终任务mapper1转mapper4切页程序]. f' ~5 a: P! y7 @# T$ D
.ORG $BFD2 ;初始化跳转& D9 X1 `; d- C: e, ^5 g
JSR $FFC0
4 y4 F) A5 o2 p2 W: s) O3 M1 P! l" z" F8 K' k( s$ @' z m* |
3 l" \1 d# \5 G/ z: f/ ~# C+ @9 {5 m
.ORG $FFC0 ;切页+ ~9 V' l: z8 e# q6 x, h
LDA #$06
2 P' t) S. | R4 _' |& o# Q STA $8000' Y1 F# a. F* {' h8 U
LDA #$0E3 @+ Q& o/ \' m9 W% j. L
STA $8001
0 f" f7 {# B7 O; B JSR $8000
$ ~! R0 K8 I* o0 H$ Q' i* m* i RTS
3 D2 j n5 m: T1 \2 e
1 ], C+ z$ X! t" K( G8 _, d$ q .ORG $8000 ;数据复制/ i4 B" ?: F. J6 E2 x, `$ h
LDA #$80
5 X, T& O0 I, q. @; O5 @: d$ n STA $A001 ;启用SRAM, b+ [8 n# |1 m5 P6 W5 p
PHA3 V+ n) ~; x5 O1 A; o: H- b1 V
TXA* X; c5 }; g% G4 V' A( \
PHA
1 P+ ~% q; W. Q3 K- l LDX #$001 N& z; H6 J$ X: l: I
DATACOPY: ;数据复制 r* q$ c" C2 o
LDA $8100,X3 T x) H6 S) M9 ?2 _/ @! {2 u
STA $7200,X
* g) Z c; X w( |' Y, }" i INX _; L! `7 U3 Y) _9 f" o
CPX #$00
6 \9 {4 i1 A: g9 Y BNE DATACOPY
( p* E: |4 k9 E. l. y( { PLA
! T0 Q- A4 v6 j( k* P, ? TAX. ^) u I% E9 T |7 }1 E
PLA
3 |1 e& q: ?7 y8 ^0 U! m" G RTS/ a1 Z+ ]3 m o5 u. L8 V2 I2 x
8 u& S0 P. u. B( k3 C
.ORG $CD9B ;跳转到转换的切页程序
, [" }9 w3 ~$ o" g/ ]+ E STA $70
) e2 }* Y4 T+ a+ c' }: H8 D% K JSR $7200- M& Y b. U3 d& V
RTS
' j; g7 E" K5 ?0 V+ t0 k \7 L. G5 M
& o3 ~1 D" P1 c+ B% y .ORG $73004 d; y! a+ b) t* @/ f
M1_TO_M4: ;切页程序2 r) a4 ]( M0 H, w4 j z. y
CPX #$00; J3 m& E" }) M
BEQ REG_SET
1 a! s+ }; x) k CPX #$01
$ Q' q/ ^, k6 h% D BEQ PPU_BANK_0000 K9 o: @2 X2 p* @! X
CPX #$02! p/ S7 y* _9 {! G0 k6 U6 I5 Z
BEQ PPU_BANK_1000
/ O' X0 P7 y: A+ X6 O5 Q2 { CPX #$03
- T1 t8 ]6 m6 a% ]" C, e3 D1 k* ^ BEQ PRG_BANK9 U- Y5 \+ P5 h G
REG_SET:
8 a0 C [4 z9 g! V6 t' A3 I X STA $A000 ?. D4 w5 U e7 x
RTS
( u4 P; W' T$ a/ F6 ~ .ORG $73200 a$ s& u6 u1 ~; J
PRG_BANK: ;PRG切页
0 w% _! X @0 b. C* b3 Q( g9 ~ PHA" K& I) f+ k* I9 i
LDA #$06$ R% P$ R; }3 g# q
STA $8000
c1 ^4 m g3 Y! |- Q9 V' ] PLA
' U) C8 o* P( s. d ASL7 m5 z( f1 P* z# {1 ^' \# L1 |
STA $8001' Z8 p# j* C- Y) D" U
ORA #$01( _& I5 h" l3 D& @
PHA
+ }, o7 ?' o1 I' U LDA #$07& U3 x* _. C4 U- r9 f/ I- m7 I
STA $8000
6 S. `* _: n) T$ F5 }; A PLA
* X1 n1 R6 \/ d3 }# q! Z( U STA $8001
( `$ O. Q, [* X- i- D RTS
' n [& I3 s- i* r: X .ORG $7340
0 }% A! I' q% u3 S' B" zPPU_BANK_0000: ;精灵切页& P' D8 k1 l- L: A
PHA. n: ~' A/ l, L2 z
ASL/ Y: x; p, m# b- U8 d9 C9 |
ASL+ I. X1 K4 d' ?
PHA
9 t( ^; }8 r" {% F2 N8 j& V LDA #$00( b7 _$ J" S6 r* n# M% s
STA $8000& M7 r$ y1 t- s& M9 N4 n
PLA2 Z0 T; c# Z4 z/ {+ | w" F2 l- V
STA $8001" i& M; u% N0 C" h. E% L: S6 _! Z
ADC #$02& F. h% c( t. ~' x( a5 \
PHA# G4 v: W5 f, W: q9 W' D
LDA #$01
! I% m. ^( W: _ STA $8000
. b% C$ w6 |! l" S) g PLA; ~, s E5 \# [4 Y0 V
STA $8001
1 x3 u4 |& \2 B; L9 e1 t, U PLA
& z! Y) O, v* U4 I3 U: _0 j RTS
) k% R, @* S6 F0 K5 y 9 Y- J: E& Z- D/ U7 a/ N
.ORG $7360# ^ R- T' `- p" _; j' g
PPU_BANK_1000: ;背景切页5 \+ F0 o6 k0 `) P9 l
PHA
, k" I; d( a& n( P6 ` ASL K9 Y9 Z. B7 Y. M
ASL& p& O, ~' J$ Q+ h1 d7 L: l4 o
PHA; i: L6 j' y, N5 a
LDA #$02
3 F+ h" ?/ P$ |4 x3 L. ? STA $8000
- q( w" @% l1 A* Z" k1 d* F PLA7 ]" k% Q& q1 p2 k! w' b
STA $8001
1 r/ S: H3 z2 @: o ADC #$01
' ~! _! V' s; M2 N& o0 v; D PHA( h- s( ^. D3 T7 s6 }- i$ _( I# V- I
LDA #$03! v& m' G/ S9 `) X* b0 A
STA $8000- w6 l& A- F1 N' L
PLA
% [! k" n+ h- k2 j5 y STA $8001
% m N/ t' f. d% H; f& A3 V ADC #$01
" j7 I6 ?6 M8 M2 \) j5 Z PHA; _9 x# i' ]; |+ t7 r
LDA #$04
|" [. r6 E4 E6 a3 r9 B* D: g- Z STA $8000
" p( ?) j$ K, o+ m1 \ PLA) I. k& Y6 ]# Q* _ ^ W
STA $8001
% b& V& q5 u! ~2 e- E ADC #$01
2 P5 Q: R! z& E+ s4 ]% A PHA& l4 e7 \; y6 u D: _5 a# J
LDA #$05
2 g+ k$ V$ }& w' e7 d STA $8000
/ T" q _6 B" g; d' x1 F PLA+ G9 ~. P6 _+ P! Y7 H- b
STA $8001. v4 j: b# Z m* l" x& R" k! Q
PLA
2 M W5 p8 r( d$ T2 Z RTS
+ ~0 F1 j, a/ E, E e( i$ n$ Z# ?3 g1 m$ m; Z7 I/ g
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IP卡
狗仔卡
发表于 2017-5-20 21:24:33
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