# FC IRQ **Repository Path**: flame_cyclone/fc-irq ## Basic Information - **Project Name**: FC IRQ - **Description**: No description available - **Primary Language**: Unknown - **License**: Not specified - **Default Branch**: master - **Homepage**: None - **GVP Project**: No ## Statistics - **Stars**: 2 - **Forks**: 0 - **Created**: 2023-12-01 - **Last Updated**: 2024-11-13 ## Categories & Tags **Categories**: Uncategorized **Tags**: None ## README # FC IRQ #### 介绍 FC IRQ操作测试 #### 软件架构 NES(6502 ASM) #### 安装教程 1.下载工程 2.点击bat生成 3.运行ROM #### 使用说明 仅测试IRQ功能 ![](/image/image0.png) ![](/image/image1.png) ![预览](/image/image2.png) Mapper控制代码(MMC3为例) \[FC\]\[Mapper\]\[MMC3\].asm ```asm ;================================================== ;Mapper号 MAPPER_NUMBER = 04 ;================================================== ;MMC3 (Mapper 4) 寄存器常量 MAPPER_REG_BANK_CTRL = $8000 MAPPER_REG_BANK_DATA = $8001 MAPPER_REG_MIRRORING = $A000 MAPPER_REG_PRG_RAM_PROTECT = $A001 MAPPER_REG_IRQ_LATCH = $C000 MAPPER_REG_IRQ_RELOAD = $C001 MAPPER_REG_IRQ_DISABLE = $E000 MAPPER_REG_IRQ_ENABLE = $E001 ;================================================== IRQ_SCANLINE_BEGIN = 135 IRQ_SCANLINE_1 = 8 IRQ_SCANLINE_2 = 54 IRQ_SCANLINE_3 = 8 ;================================================== ;==================================================================================================== ;宏常量 ;==================================================================================================== ;==================================================================================================== MACRO_MAPPER_INIT .MACRO ;禁用IRQ STA MAPPER_REG_IRQ_DISABLE ;水平镜像 LDA #$01 STA MAPPER_REG_MIRRORING ;初始化图形bank LDX #$05 .Init_Chr_Bank STX MAPPER_REG_BANK_CTRL LDA .ChrBankData,X STA MAPPER_REG_BANK_DATA DEX BPL .Init_Chr_Bank JMP .Init_Chr_Bank_End .ChrBankData .DB $00,$02,$04,$05,$06,$07 .Init_Chr_Bank_End ;启用SRAM LDA #$80 STA MAPPER_REG_PRG_RAM_PROTECT .ENDM ;==================================================================================================== MACRO_MAPPER_SOUND_CLEAR .MACRO .ENDM ;==================================================================================================== MACRO_SRAM_ENABLE .MACRO LDA #$80 STA MAPPER_REG_PRG_RAM_PROTECT .ENDM ;==================================================================================================== MACRO_SWITCH_BANK_8000_A .MACRO PHA LDA #$06 STA MAPPER_REG_BANK_CTRL PLA STA MAPPER_REG_BANK_DATA .ENDM MACRO_SWITCH_BANK_A000_A .MACRO PHA LDA #$07 STA MAPPER_REG_BANK_CTRL PLA STA MAPPER_REG_BANK_DATA .ENDM MACRO_SWITCH_BANK_C000_A .MACRO .ENDM MACRO_SWITCH_BANK_E000_A .MACRO .ENDM ;==================================================================================================== MACRO_TRIGGER_FIRST_IRQ .MACRO LDA #IRQ_SCANLINE_BEGIN + 1 STA MAPPER_REG_IRQ_LATCH STA MAPPER_REG_IRQ_RELOAD STA MAPPER_REG_IRQ_ENABLE CLI .ENDM ;==================================================================================================== MACRO_ENABLE_IRQ .MACRO STA MAPPER_REG_IRQ_ENABLE .ENDM ;==================================================================================================== MACRO_DISABLE_IRQ .MACRO LDA #$00 STA MAPPER_REG_IRQ_CTRL STA MAPPER_REG_IRQ_ACK .ENDM ;==================================================================================================== MACRO_ACK_IRQ .MACRO STA MAPPER_REG_IRQ_DISABLE STA MAPPER_REG_IRQ_ENABLE .ENDM ;==================================================================================================== MACRO_IRQ_OPERATE .MACRO ;================================================== ;IRQ滚动模式常量 IRQ_SCROLL_MODE_ZERO = 0 ;不滚动 IRQ_SCROLL_MODE_LEFT = 1 ;向左滚动 IRQ_SCROLL_MODE_RIGHT = 2 ;向右滚动 ;IRQ扫描线数据 IRQ_Scanline_Data .DB IRQ_SCANLINE_1 .DB IRQ_SCANLINE_2 .DB IRQ_SCANLINE_3 .DW 00 ;关闭IRQ ;IRQ滚动控制模式 IRQ_Scanline_Mode .DB IRQ_SCROLL_MODE_RIGHT .DB IRQ_SCROLL_MODE_LEFT .DB IRQ_SCROLL_MODE_RIGHT .DB IRQ_SCROLL_MODE_LEFT ;================================================== ;;IRQ滚动控制 IRQ_Set_Scroll LDX IRQ_Process_Index LDA IRQ_Scanline_Mode,X CMP #IRQ_SCROLL_MODE_LEFT BEQ IRQ_Set_Scroll_Left CMP #IRQ_SCROLL_MODE_RIGHT BEQ IRQ_Set_Scroll_Right IRQ_Set_Scroll_Zero;不滚动 LDA #$00 STA PPU_SCROLL STA PPU_SCROLL RTS IRQ_Set_Scroll_Left;向左滚动 LDA Scroll_H STA PPU_SCROLL STA PPU_SCROLL RTS IRQ_Set_Scroll_Right;向右滚动 LDA #$00 SEC SBC Scroll_H STA PPU_SCROLL STA PPU_SCROLL RTS ;================================================== ;;IRQ滚动控制 IRQ_Set_Ctrl LDX IRQ_Process_Index LDA IRQ_Scanline_Data,X BNE IRQ_Process_Latch IRQ_Process_Disable;禁用IRQ STA MAPPER_REG_IRQ_DISABLE STA IRQ_Process_Index RTS IRQ_Process_Latch;设置下次 IRQ 触发扫描线 STA MAPPER_REG_IRQ_LATCH INC IRQ_Process_Index RTS ;================================================== ;IRQ处理 IRQ_Process_By_Index JSR IRQ_Set_Scroll JSR IRQ_Set_Ctrl IRQ_Process_End RTS .ENDM ``` 公用配置 \[FC\]\[Mapper\]\[Config\].asm ``` ;[FC][Mapper][IRQ] ;FlameCyclone 20231201 .INCLUDE "[FC][Mapper][MMC3].asm" ;.INCLUDE "[FC][Mapper][MMC5].asm" ;.INCLUDE "[FC][Mapper][Namco163].asm" ;.INCLUDE "[FC][Mapper][VRC2&4].asm" ;.INCLUDE "[FC][Mapper][VRC3].asm" ;.INCLUDE "[FC][Mapper][VRC6].asm" ;.INCLUDE "[FC][Mapper][VRC7].asm" ;.INCLUDE "[FC][Mapper][FME7].asm" ;.INCLUDE "[FC][Mapper][Mapper18].asm" ;.INCLUDE "[FC][Mapper][Mapper64].asm" ;文件头配置 NES_16KB_PRG_SIZE = 2 NES_8KB_CHR_SIZE = 1 BANK_DATA_MASK = NES_16KB_PRG_SIZE * 2 - 1 ;bank号掩码 RESET_BANK = NES_16KB_PRG_SIZE * 2 - 1 ;====================================================================== PRG_DATA_BANK_C000 = NES_16KB_PRG_SIZE * 2 - 2 PRG_DATA_BANK_E000 = NES_16KB_PRG_SIZE * 2 - 1 ;文件头 ;====================================================================== .INESPRG NES_16KB_PRG_SIZE ;16KB PRG 数量 .INESCHR NES_8KB_CHR_SIZE ;8KB CHR 数量 .INESMAP MAPPER_NUMBER .INESMIR 0 ;命名表镜像 0水平 1垂直 ;================================================== ;NES端口常量 PPU_CTRL = $2000 ;PPU控制寄存器 PPU_MASK = $2001 ;PPU掩码寄存器 PPU_STATUS = $2002 ;PPU状态寄存器：读取后PPU_SCROLL和PPU_ADDRESS被复位，下一个写到PPU_SCROLL的数据是水平的，写到PPU_ADDRESS的数据是高位 PPU_OAM_ADDR = $2003 ;精灵RAM地址：用来设置通过PPU_OAM_DATA访问的256字节精灵RAM地址。每次访问PPU_OAM_DATA后该地址增加1 PPU_OAM_DATA = $2004 ;精灵RAM数据：用来读/写精灵内存。地址通过PPU_OAM_ADDR来设置，每次访问后地址增加1 PPU_SCROLL = $2005 ;屏幕滚动偏移：第一个写的值会进入垂直滚动寄存器（若>239，被忽略）。第二个值出现在水平滚动寄存器 PPU_ADDRESS = $2006 ;VRAM地址：设置PPU_DATA访问的VRAM地址。第一个写地址的高6位。第二个写低8位。每次访问PPU_DATA后地址增加 PPU_DATA = $2007 ;VRAM数据：用来访问VRAM数据，通过PPU_ADDRESS设置的地址在每次访问之后会增加1或32 OAM_DMA = $4014 ;DMA访问精灵RAM：通过写一个值xx到这个端口，引起CPU内存地址为$xx00－$xxFF的区域传送到精灵内存 APU_STATUS = $4015 ;声音通道切换 JOY1_FRAME = $4016 ;手柄1 + 选通 JOY2_FRAME = $4017 ;手柄2 + 选通 ;-------------------------------------------------- PROGRAM_BANK = PRG_DATA_BANK_E000 PROGRAM_ADDR = $E000 ;================================================== ;零页内存地址配置 Use_Ram_Begin = $80 .RSSET Use_Ram_Begin PPU_Ctrl_Buf .RS 1 PPU_Msak_Buf .RS 1 PPU_Scroll_H .RS 1 PPU_Scroll_V .RS 1 FC_Data_L .RS 1 FC_Data_H .RS 1 FC_Data_Buf .RS 1 FC_Data_Index .RS 1 ;================================================== GAMEPAD_MERGE_FLAG = $04 Gamepad_Keep .RS 2 Gamepad_Once .RS 2 Gamepad_Temp .RS 2 Gamepad_0_State .RS 1 Gamepad_1_State .RS 1 Gamepad_0_Value .RS 1 Gamepad_1_Value .RS 1 Gamepad_Port_Value .RS 1 Gamepad_Merge .RS 1 ;================================================== Scroll_H .RS 1 Scroll_V .RS 1 IRQ_Process_Index .RS 1 ;================================================== Prg_Bank_8000 .RS 1 Prg_Bank_A000 .RS 1 Prg_Bank_C000 .RS 1 Prg_Bank_E000 .RS 1 Prg_Bank_8000_Bak .RS 1 Prg_Bank_A000_Bak .RS 1 Prg_Bank_C000_Bak .RS 1 Prg_Bank_E000_Bak .RS 1 ;================================================== Prg_Bank_A_Bak .RS 1 ;================================================== ``` 公用主程序代码 \[FC\]\[Mapper\]\[IRQ\].asm ``` .INCLUDE "[FC][Mapper][Config].asm" ;CHR图形数据 ;====================================================================== .BANK NES_16KB_PRG_SIZE * 2 .INCBIN "chr_bank/chr_data.chr" .BANK PROGRAM_BANK & BANK_DATA_MASK .ORG PROGRAM_ADDR ;-------------------------------------------------- Attributes_Data ;命名表属性 .DB $00,$00,$00,$00,$00,$00,$00,$00,$55,$55,$55,$55,$55,$55,$55,$55 .DB $55,$55,$55,$55,$55,$55,$55,$55,$55,$55,$55,$55,$55,$55,$55,$55 .DB $55,$F5,$F5,$F5,$F5,$F5,$F5,$55,$55,$FF,$FF,$FF,$FF,$FF,$FF,$75 .DB $A5,$A5,$A5,$A5,$A5,$A5,$A5,$A5,$AA,$AA,$AA,$AA,$AA,$AA,$AA,$AA ;-------------------------------------------------- ;调色板数据 Palette_Data .DB $0F,$27,$20,$0F,$0F,$23,$20,$0F,$0F,$21,$20,$0F,$0F,$24,$20,$0F .DB $0F,$21,$24,$25,$0F,$24,$20,$0F,$0F,$24,$20,$0F,$0F,$24,$20,$0F ;-------------------------------------------------- ;命名表文本索引 Name_Table_Text_Index .DW .Name_Table_Text_Data_1 .DW .Name_Table_Text_Data_2 .DW .Name_Table_Text_Data_3 .DW .Name_Table_Text_Data_4 .DW .Name_Table_Text_Data_5 .DW $00;结束标记 .Name_Table_Text_Data_1 .DB $20,$48 .STR "MAPPER IRQ TEST" .Name_Table_Text_Data_2 .DB $22,$28 .STR "SCROLL RIGHT" .Name_Table_Text_Data_3 .DB $22,$68 .STR "SCROLL LEFT" .Name_Table_Text_Data_4 .DB $23,$26 .STR "MADE BY FLAMECYCLONE" .Name_Table_Text_Data_5 .DB $23,$6B .STR "2023.12.01" ;================================================== ;命名表初始化 Init_Name_Table LDA #$20 STA PPU_ADDRESS LDA #$00 STA PPU_ADDRESS LDA #$00 LDY #$00 LDX #$10 Init_Name_Table_Write STA PPU_DATA INY BNE Init_Name_Table_Write DEX BNE Init_Name_Table_Write RTS ;================================================== ;调色板初始化 Init_Palette BIT PPU_STATUS LDA #$3F STA PPU_ADDRESS LDA #$00 STA PPU_ADDRESS LDX #$00 Init_Palette_Write LDA Palette_Data,X STA PPU_DATA INX CPX #$20 BCC Init_Palette_Write RTS ;================================================== ;设置命名表属性 Init_NameTable_Attributes BIT PPU_STATUS LDA #$23 STA PPU_ADDRESS LDA #$C0 STA PPU_ADDRESS LDX #$00 Init_NameTable_Attributes_Write LDA Attributes_Data,X STA PPU_DATA INX CPX #$40 BCC Init_NameTable_Attributes_Write RTS ;================================================== ;初始化命名表文本 Init_Name_Table_Text BIT PPU_STATUS BIT $FFFF LDA #$00 STA