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;[FC][最终任务mapper1切页程序]# R9 K) b, r- Q3 I
.ORG $CD9B
) E) e; j' j. V$ ]" d+ T3 D, p$ bBANK_START:2 u2 `, U- l" u% r+ g: T
STA $70( \' M& V: [# ^. z _0 U
TXA
: O* X5 O8 X0 W+ ~) ?( g% W ASL
P# s# ?: Y; a/ J TAX
1 B# @! `( X/ B, W' p" Q6 RPORT_SET:% U# v, r/ P2 H
LDA BANK_DATA,X- l& D/ `6 F& o" x! ^8 Z/ T
STA $6E
- r2 u1 g9 O/ X; S LDA $CDB8,X
3 }0 M& b5 [. \3 l' G# [ STA $6F1 C3 e4 a6 t5 c$ F- L
LDY #$00" {/ M. ], H. h- Z% j3 K8 d
LDX #$052 U& u6 }* f( w; k2 y
LDA $70
7 N/ m" c8 C6 h6 H/ v$ JPORT_WRITE:# l0 |6 v% ~) s( V! ?) i) d% n; w. Q
STA ($6E),Y
. s$ M: f: }- q8 m7 E6 @* p# O LSR% E& N" l1 W( l+ ^
DEX$ X/ Q3 b- @" S
BNE PORT_WRITE
8 k r5 J2 P" W: J4 t' G2 U RTS; H/ J. {% _1 _
9 a0 s y: V! @* r: H. t
; K. g. q- b4 r& cBANK_DATA:8 N1 l0 [3 g$ A3 ?& c- E$ U3 w2 q2 ^
.BYTE $00,$80,$FF,$BF,$00,$C0,$FF,$FF1 [; t1 R" \. |0 X/ W* _, x
, T9 N& q ]6 W3 M$ S! [) X' q : w% c* X) R0 H0 G4 f
;[FC][最终任务mapper1转mapper4切页程序]
: Z( M9 Y2 U! `) I .ORG $BFD2 ;初始化跳转: b3 X7 g5 P* x8 T
JSR $FFC02 J3 T: P* O& N$ D% q
6 _* v5 \2 g5 C% w
$ |/ d6 Q; y% r3 [ .ORG $FFC0 ;切页
4 u4 y0 L$ E, i- E LDA #$06
# u6 \7 Y: `* W5 C+ [ STA $80002 }& C; K+ }" m* {8 m; _" j
LDA #$0E
6 i: z7 @2 K ^8 D6 O$ i STA $8001+ N9 `; o, s- a+ |0 U
JSR $8000
! z, N/ s$ `9 V3 E, R0 q RTS 0 v9 P2 k1 Z) u+ {) [
; j+ |1 t( e2 z6 f2 b .ORG $8000 ;数据复制3 h$ j2 Z" u2 z. P6 k) D( q# n9 e o) \
LDA #$80
' s% F4 W. T" x STA $A001 ;启用SRAM
1 G, o: A, u" y8 X$ ^3 T& h PHA
* n. Q! g" g& V. ^$ o# h7 u TXA: x$ ` U+ N. X4 u! l& p. E
PHA! t7 z, o# I% w+ N3 x
LDX #$001 C* A3 k1 m- u. m
DATACOPY: ;数据复制
) c- C3 B: d' m LDA $8100,X
$ o# t& T: F# s STA $7200,X
l+ U9 E% H0 L INX, ]4 {$ V% O. `$ K# W
CPX #$00
# P! f1 ]/ ~- Y+ I+ x1 x# w BNE DATACOPY
& [5 e- O0 Y7 I! Q1 Q9 Q PLA
) p5 L2 k6 {, x" |& @8 [ TAX
1 C7 T/ ~$ {, V0 v3 `- C4 T PLA
8 p. c# x) I1 G4 W s RTS
. r" G y' B! X" D- Z- Y4 `' e; Y
+ k$ _' d# C- a0 _/ e' I6 E .ORG $CD9B ;跳转到转换的切页程序
: r3 @6 B0 X0 V/ ^/ p STA $706 v# R9 S; i: x6 @
JSR $7200( h. c9 |5 v2 g4 I! V' z1 s3 d
RTS" d& M+ R$ `: @$ L; G* s
6 }. V7 A( \9 }
.ORG $7300
' n: V. M9 S; a: Z$ Z0 @5 E8 PM1_TO_M4: ;切页程序7 Q5 J9 F# Y: v9 ^6 ^* d/ O. @, M
CPX #$00
& D1 C% d4 u- `1 n, ~5 Y BEQ REG_SET" h$ Y! N* u! W4 i! M0 O* Y+ D! h
CPX #$01
# O. p: M3 Z5 E2 K1 C) C BEQ PPU_BANK_0000' O+ Y% e$ U% F M* P9 o/ c
CPX #$02
# R. P, `8 @2 x7 H! ~1 X U/ ?3 l1 v BEQ PPU_BANK_1000
6 F4 \1 O8 j: a1 e: Z CPX #$037 l6 _! E: T3 ~0 w Q$ k2 W$ S
BEQ PRG_BANK
) G, t( w2 ~2 NREG_SET:
; Y$ X H! g* H( B STA $A000
5 X: W+ J) f, w. M; R RTS
$ n |( J. W5 O$ [$ @) C1 ^5 r. s .ORG $7320+ |, z! L2 M' X$ t4 K/ U, u
PRG_BANK: ;PRG切页- E2 c% \; s" W# o8 ]
PHA
) b2 k+ Y1 }5 n$ ~. ^% Z) B+ y# M LDA #$06
5 Y2 D" }; ~; l* W STA $8000
) X1 b) u2 f6 O9 Q/ [, R PLA1 I0 d8 O: d5 p7 l$ I1 I' F; }
ASL0 g" U5 t2 D% ?
STA $8001$ q7 k' _. y" g& O- F
ORA #$01# i2 n0 A! |) o; M3 o. t+ @, H% P
PHA
% a( _; C3 ^) V. x LDA #$07
v, X1 _( I# \0 G, E STA $8000
! @; @- @% P) }, I PLA
1 A( S4 d1 F8 n. J' H8 H6 H+ X" l STA $8001
! n0 t3 [& P3 @2 c/ B D; X RTS
7 h, ]- w6 l' o3 [! w L( j .ORG $7340
& V6 g) C! q, G5 s3 i7 r" RPPU_BANK_0000: ;精灵切页) I/ f T0 H. y3 j
PHA4 y; t* H& [ s% S, S, C; \: @7 z9 `
ASL
+ H* A$ M7 f7 _5 T5 r: _- o ASL2 s0 _. I, C" O% S) T& D
PHA
" Q( P3 ?% D) s s; f# } LDA #$00' A) A5 O& H6 C, J' T
STA $8000( K: x& e) n# i
PLA
1 ~: K2 m6 b: M A* k' T STA $80010 D4 F3 D. V2 j' Y
ADC #$02! l' Q! Q# N6 P7 S
PHA
4 J+ m. e& z1 U3 w( } LDA #$01: f) o" o, V+ O- p5 z
STA $80004 J) e! d, A; u# S0 v) w
PLA! [( R- K( d8 ^8 F
STA $8001
/ T- h! e/ d5 ?! |$ x# ? PLA
. y l7 r+ c# z, A RTS
% S0 x7 Y# A% n, G1 W
1 f6 b% _, e/ |5 | .ORG $7360- B9 n- j5 B* D0 g
PPU_BANK_1000: ;背景切页( d: P/ ?6 l' s) Y* q6 M3 S. S
PHA
- @- L8 }8 F" i. f; f ASL6 y8 i( w7 t% p: w8 {3 Y
ASL
! A3 D; r3 I V3 N PHA
1 D' X1 n1 R B7 p1 E8 w9 D LDA #$02# L! k) c& C& g" `, |
STA $80007 \: J4 q5 d0 @3 }2 b$ a7 `. l f/ a
PLA( Z2 H( \) W2 D9 a& M# u8 N9 c
STA $8001/ K( i% N1 K- Q: q1 q$ l2 s' z. g
ADC #$01) G0 b0 h# F: p5 D; P
PHA* Q" d2 G' F7 z4 }6 ]
LDA #$033 K7 L9 ]" O+ R5 t
STA $80008 O9 B/ |1 i/ w4 Y
PLA
0 T c; {- g W( c- V! ^ STA $80011 Q3 V& K! E: q1 ^
ADC #$01
/ ~( @( ^: c0 ^7 T1 s3 A PHA
/ A7 R% w7 e0 h: m+ _ LDA #$04
: _! ~, k: S( ^+ [, F STA $80003 \% e! m- I1 a: O& A: Y* _
PLA
% i: @# R6 U: \3 K STA $8001
7 ?* d- P. u4 j$ U) i8 X* S) w+ l ADC #$01& Q! n4 r9 E7 @5 g7 l J
PHA0 g- Q/ ^" ?5 d7 v4 C
LDA #$052 Z, V1 z! ?" a0 o7 H' F u
STA $8000
1 b5 y7 @( v z2 L& h PLA* {% S( c3 }4 y! m( K( N1 k9 \
STA $8001
" {7 M+ T! p2 M5 C( R# i' U# v PLA/ x; b4 C, g* [
RTS
, o% }$ d4 M2 [ g% V, `$ H, V8 j' h* x8 i: u! h& ]
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IP卡
狗仔卡
发表于 2017-5-20 21:24:33
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