From 4923a534234acf37966b267a9a3478a0c1f8486b Mon Sep 17 00:00:00 2001 From: Hermes Date: Thu, 9 May 2024 13:17:58 +0200 Subject: [PATCH] Added Scroll+Input P1 --- assemble.sh | 5 +- helloworld.dbg | 1 - helloworld.nes => spaceship.nes | Bin 40976 -> 40976 bytes src/background2.nam | Bin 0 -> 1024 bytes src/constants.inc | 13 ++- src/controllers.asm | 35 ++++++++ src/controllers.o | Bin 0 -> 831 bytes src/header.inc | 2 +- src/helloworld.o | Bin 17044 -> 0 bytes src/meta.msb | 1 - src/reset.o | Bin 873 -> 1014 bytes src/{helloworld.asm => spaceship.asm} | 117 +++++++++++++++++++------- src/spaceship.o | Bin 0 -> 19984 bytes 13 files changed, 137 insertions(+), 37 deletions(-) delete mode 100644 helloworld.dbg rename helloworld.nes => spaceship.nes (91%) create mode 100644 src/background2.nam create mode 100644 src/controllers.asm create mode 100644 src/controllers.o delete mode 100644 src/helloworld.o delete mode 100644 src/meta.msb rename src/{helloworld.asm => spaceship.asm} (68%) create mode 100644 src/spaceship.o diff --git a/assemble.sh b/assemble.sh index 4f3df48..396970f 100755 --- a/assemble.sh +++ b/assemble.sh @@ -1,5 +1,6 @@ #! /bin/sh -ca65 src/helloworld.asm +ca65 src/spaceship.asm ca65 src/reset.asm -ld65 src/reset.o src/helloworld.o -C nes.cfg -o helloworld.nes +ca65 src/controllers.asm +ld65 src/reset.o src/controllers.o src/spaceship.o -C nes.cfg -o spaceship.nes diff --git a/helloworld.dbg b/helloworld.dbg deleted file mode 100644 index 7dfeef9..0000000 --- a/helloworld.dbg +++ /dev/null @@ -1 +0,0 @@ -BreakPoint: startAddr=00002002 endAddr=00000000 flags=EC--X- condition="" desc="" diff --git a/helloworld.nes b/spaceship.nes similarity index 91% rename from helloworld.nes rename to spaceship.nes index 9896830bc521c003d7f2e3e7ec5e32a1c9b4a7d1..0fe9ba93cd4083d97796928880245a3c7868a677 100644 GIT binary patch delta 543 zcmZ`zO=}cE5PjX#GqV_1JK5b);~F{#W%Ip6LG%zOI?42sQ+D;Tmq4PU=ZUBX zp=Fc)1F|4E!uY}dfgDvx*q`9hQ=DT!1Z&J$sIGdi-s`Gr@9_2xcW=$r2RXx*>))H% 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= %01000000 +BTN_A = %10000000 \ No newline at end of file diff --git a/src/controllers.asm b/src/controllers.asm new file mode 100644 index 0000000..a61fa31 --- /dev/null +++ b/src/controllers.asm @@ -0,0 +1,35 @@ +.include "constants.inc" + +.segment "ZEROPAGE" +.importzp pad1 + +.segment "CODE" +.export read_controller +.proc read_controller + + PHA + TXA + PHA + PHP + + LDA #$01 + STA CONTROLLER1 + LDA #$00 + STA CONTROLLER1 + + LDA #%00000001 + STA pad1 + +get_buttons: + LDA CONTROLLER1 + LSR A + ROL pad1 + + BCC get_buttons + + PLP + PLA + TAX + PLA + RTS +.endproc \ No newline at end of file diff --git a/src/controllers.o b/src/controllers.o new file mode 100644 index 0000000000000000000000000000000000000000..1595c6281a1bff2afd19ea3658882a2a98b97e7e GIT binary patch literal 831 zcmYL`J#W)+5XSHRaU7>LeQh=dBK>`)2pg6H<0Vj_90ul_Vo2C${I4E`` z)Dgr05`vGwS|kRxj%;jv00u@r023p3ZdHbRp5MLLxpTauz%Ky6E=8JRM3JL-N%4(h z69E+RCiyJ6NiN7O@*m_Yl&HkF698n;C1JmFmJ1=8C%^uDl?6WeuyycLBz}L|I`}T+ 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ÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿÿ \ No newline at end of file diff --git a/src/reset.o b/src/reset.o index a3a66e03e5ad759feea208c9f890485dc0775657..661fa276752e051c6133a91e09391c7496950527 100644 GIT binary patch literal 1014 zcmYL`%TE(g6vofF9r~ou@~TjT;UN`-k`ghJnAoAMXe=$6PBn2;hgxD|DW)w7tPIA5 z8~y;J39|CBGRB1ez^zN;!liL-G%j4=`9{UX`OfdV=iEDU?k(=r?JyDDl<-MZB|0Ux zB*IMeSfX3_spNLaFC;6;uO<5>-if&=`MZlq61@^Z{_)o(@9!j6(io_apI4xkvd3nKe_fINgfk(#NEVCc#8Nd4-xNik9=Df6%3PN zUDUM~O0puJ=1x*d7Zr>+7$FYv1o1Bsb%5VeFON7*u4l5>gF|%)L*^he#2k8nhrYv8H30Z5ye2m5I5`@0UD!Vvr(RHRGO7m+-|N9l*1pU%6JX8>J07>B zfJUQi4DQ_dFLYx<+?)6hT)4pVHj0b$yw5o^^UXKkRE}*cKt%VY+)@pxVW|VD0295G z3W>j#^hth@RFWSh&m?=&{E&R05y^;71<1X>y;3UEfA;N@Lvj1<((Zd*tA0uBK5=}P zdqR|El^{OkDdIEMNS$OjL|Q+V;Yn%Ed6@VW&l3OS7;&FR@o#}T!LHQlInR^!MxGtQqGJF9i@+T5SB?_@0#3VPjtyp-@^hHu z?Bi*6vR9bk&#Z=@%NcoiLRMKG$GOh{A;1gBmlI9FE=kc6OvCIl3_p~@upl7cEI$_( z0AyQ4I%ZL{KER3DJZu&i1*QQxB_fvy`O$g+9c>JD1y}?|fJrGbU=zR`Ag4o=fW-j^ z+GPfNN(X-(9un>UQRtI6wWE=hjwbySui)zJ0!E4rt4ADI;yv;hyUbA zZ&?l7KiEcf&$4%#^|t5ncGI#S9$1a;P_olFuDff^y49}kTP^SZORM^NA)9j)3wVuo Wt5nh31smJkcMVNPIs4 diff --git a/src/helloworld.asm b/src/spaceship.asm similarity index 68% rename from src/helloworld.asm rename to src/spaceship.asm index 6f1af78..4c9fcfe 100644 --- a/src/helloworld.asm +++ b/src/spaceship.asm @@ -6,6 +6,8 @@ RTI .endproc +.import read_controller + .proc nmi_handler LDA #$00 STA OAMADDR @@ -15,10 +17,27 @@ ;Update tiles *after* DMA transfer JSR update_player JSR draw_player + JSR read_controller + + LDA scroll + CMP #$00 + BNE set_scroll_positions + + LDA ppucrtl_settings + EOR #%00000010 + STA ppucrtl_settings + STA PPUCTRL + LDA #240 + STA scroll + +set_scroll_positions: LDA #$00 - STA $2005 - STA $2005 + STA PPUSCROLL + DEC scroll + LDA scroll + STA PPUSCROLL + RTI .endproc @@ -104,35 +123,31 @@ TYA PHA - LDA player_x - CMP #$e0 - BCC not_at_right_edge - ; if BCC is not taken, we are greater than $e0 - LDA #$00 - STA player_dir ; start moving left - JMP direction_set ; we already chose a direction, - ; so we can skip the left side check -not_at_right_edge: - LDA player_x - CMP #$10 - BCS direction_set - ; if BCS not taken, we are less than $10 - LDA #$01 - STA player_dir ; start moving right -direction_set: - ; now, actually update player_x - LDA player_dir - CMP #$01 - BEQ move_right - ; if player_dir minus $01 is not zero, - ; that means player_dir was $00 and - ; we need to move left + LDA pad1 + AND #BTN_LEFT + BEQ check_right DEC player_x - JMP exit_subroutine -move_right: + DEC player_x +check_right: + LDA pad1 + AND #BTN_RIGHT + BEQ check_up INC player_x -exit_subroutine: - ; all done, clean up an return + INC player_x +check_up: + LDA pad1 + AND #BTN_UP + BEQ check_down + DEC player_y + DEC player_y + +check_down: + LDA pad1 + AND #BTN_DOWN + BEQ done_checking + INC player_y + INC player_y +done_checking: PLA TAY PLA @@ -145,6 +160,9 @@ exit_subroutine: .export main .proc main + LDA #239 + STA scroll + LDX PPUSTATUS LDX #$3f STX PPUADDR @@ -188,6 +206,39 @@ insideloop: CPX #$04 BNE outsideloop +load_background2: + LDX PPUSTATUS + LDX #$28 + STX PPUADDR + LDX #$00 + STX PPUADDR + + LDA #background2 + STA pointerHi + + LDX #$00 + LDY #$00 + +outsideloop2: + +insideloop2: + LDA (pointerLo), y + STA PPUDATA + INY + BNE insideloop2 + + INC pointerHi + + INX + CPX #$04 + BNE outsideloop2 + + LDA #%10010000 + STA ppucrtl_settings + STA PPUCTRL + vblankwait: ; wait for another vblank before continuing BIT PPUSTATUS BPL vblankwait @@ -203,10 +254,13 @@ forever: .segment "ZEROPAGE" player_x: .res 1 player_y: .res 1 -player_dir: .res 1 -.exportzp player_x, player_y pointerLo: .res 1 pointerHi: .res 1 +scroll: .res 1 +ppucrtl_settings: .res 1 +pad1: .res 1 +.exportzp player_x, player_y +.exportzp pad1 .segment "RODATA" palettes: .incbin "background.pal" @@ -218,6 +272,7 @@ sprite: .byte $78, $08, $00, $88 background: .incbin "background.nam" +background2: .incbin "background2.nam" .segment "VECTORS" .addr nmi_handler, reset_handler, 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