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https://github.com/stid/woz64.git
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Refactor - Remove c64 Kernel deps
This commit is contained in:
stid
parent
dafdd439c7
commit
5c1de5b985
@ -4,24 +4,17 @@
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#import "../core/module.asm"
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#import "../core/system.asm"
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#import "../hardware/cia.asm"
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#import "../hardware/sid.asm"
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#import "../hardware/mc6502.asm"
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#import "../hardware/ram.asm"
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#import "../hardware/vic.asm"
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.filenamespace Boot
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.const INIT_IRQ = $fda3
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.const INIT_MEM = $fd50
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.const INIT_IO = $fd15
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.const INIT_VID = $ff5b
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.const SCRN_CTRL = $d016
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.const MAIN_COLOR = $03
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.const BORDER_COLOR = $05
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.const INTERRUPT_CTRL = $dc0d
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.const NMSK_INTERRUPT_CTRL = $dd0d
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.const TIMER_A_CTRL = $DC0E
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* = * "Boot Core"
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// ========================================================
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// ////// METHODS /////////////////////////////////////////
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// ========================================================
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@ -35,50 +28,78 @@ coldStart: {
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sei
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txs
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cld
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stx SCRN_CTRL // Set Screen Bits
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jsr INIT_IRQ // Prepare IRQ
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jsr INIT_MEM // Init memory. Rewrite this routine to speed up boot process.
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jsr INIT_IO // Init I/O
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jsr INIT_VID // Init video
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stx Vic.CR2 // Set Video Bits
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jsr Boot.initIRQ // Prepare IRQ
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jsr Ram.init // Init memory.
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jsr Vic.init // Init video
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cli
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jmp warmStart
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}
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// --------------------------------------------------------
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// initIRQ -
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// Initialize Interrupt states after a cold start.
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// Should never be executed as standard Init and should
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// always be before it. This is extracted by c64 kernel
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// routine IOINIT.
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// --------------------------------------------------------
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initIRQ: {
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lda #$7F // KILL INTERRUPTS
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sta Cia.C1ICR
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sta Cia.C2ICR
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sta Cia.C1PRA // TURN ON STOP KEY
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lda #%00001000 // SHUT OFF TIMERS
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sta Cia.C1CRA
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sta Cia.C2CRA
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sta Cia.C1CRB
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sta Cia.C2CRB
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// CONFIGURE PORTS
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ldx #$00 // SET UP KEYBOARD INPUTS
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stx Cia.C1DDRB // KEYBOARD INPUTS
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stx Cia.C2DDRB // USER PORT (NO RS-232)
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stx Sid.FMVC // TURN OFF SID
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dex // set X = $FF
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stx Cia.C1DDRA // KEYBOARD OUTPUTS
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lda #%00000111 // SET SERIAL/VA14/15 (CLKHI)
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sta Cia.C2PRA
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lda #%00111111 // ;SET SERIAL IN/OUT, VA14/15OUT
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sta Cia.C2DDRA
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// SET UP THE 6510 LINES
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lda #%11100111 // MOTOR ON, HIRAM LOWRAM CHAREN HIGH
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sta MC6502.ZR1 // set 1110 0111, motor off, enable I/O, enable KERNAL, Disable BASIC
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lda #%00101111 // set 0010 1111, 0 = input, 1 = output
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sta MC6502.ZR0 // save the 6510 I/O port direction register
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rts
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}
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// --------------------------------------------------------
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// warmStart -
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// Restore pressed or program restart after first Power ON
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// --------------------------------------------------------
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warmStart: {
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sei
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lda #$7f
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sta INTERRUPT_CTRL // disable timer interrupts which can be generated by the two CIA chips
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sta NMSK_INTERRUPT_CTRL // the kernal uses such an interrupt to flash the cursor and scan the keyboard, so we better
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// stop it.
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lda INTERRUPT_CTRL // by reading this two registers we negate any pending CIA irqs.
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lda NMSK_INTERRUPT_CTRL // if we don't do this, a pending CIA irq might occur after we finish setting up our irq.
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// we don't want that to happen.
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// Disable 0e TIMER
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lda #254
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and TIMER_A_CTRL
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sta TIMER_A_CTRL
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ScreenClearColorRam($00)
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ScreenClear(' ')
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ScreenSetBorderColor(BORDER_COLOR)
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ScreenSetBackgroundColor(MAIN_COLOR)
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jsr Boot.init // Init Self as Module
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cli
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jsr Boot.init // Init Self as Module
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jsr System.start // Start Core System
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// If System Exit - reboot
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// TODO: We can print a message here
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// and delay a bit...
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jmp warmStart
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}
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// --------------------------------------------------------
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@ -20,7 +20,7 @@
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TempStringPointer: .word 0 // Pointer to string address as it get printend to screen
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}
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.namespace SCREEN {
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.namespace VIDEO {
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TempVideoPointer: .word 0 // Pointer to video mem used to target char pos
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CursorCol: .byte 0 // Actual cursor column position
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CursorRow: .byte 0 // Actual cursor row position
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@ -59,10 +59,12 @@
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// ========================================================
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.namespace TYPES {
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.label MAIN = 00
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.label LIB = 01
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.label PROG = 02
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.label CORE = 03
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.label MAIN = 00
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.label LIB = 01
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.label PROG = 02
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.label CORE = 03
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.label DEVICE = 04
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}
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@ -140,6 +142,11 @@ printType: {
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bne !+
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PrintLine(type_core)
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rts
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!:
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cmp #Module.TYPES.DEVICE
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bne !+
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PrintLine(type_device)
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rts
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!:
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cmp #Module.TYPES.PROG
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bne !+
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@ -176,6 +183,9 @@ type_prog:
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.text "prog"
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.byte 0
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type_device:
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.text "device"
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.byte 0
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#import "../core/mem_map.asm"
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@ -6,12 +6,18 @@
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#import "../libs/memory.asm"
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#import "../libs/math.asm"
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#import "../libs/print.asm"
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#import "../libs/keyboard.asm"
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#import "../libs/screen.asm"
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#import "../devices/keyboard.asm"
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#import "../devices/video.asm"
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#import "../progs/woz_shell.asm"
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.filenamespace System
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// ========================================================
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// ////// CONST ///////////////////////////////////////////
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// ========================================================
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.const MAIN_COLOR = $03
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.const BORDER_COLOR = $05
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* = * "System Core"
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@ -24,8 +30,10 @@
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// System Start
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// --------------------------------------------------------
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start: {
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VideoClearColorRam($00)
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VideoClear(' ')
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VideoSetBorderColor(BORDER_COLOR)
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VideoSetBackgroundColor(MAIN_COLOR)
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// Start Main Program
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jsr WozShell.start
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@ -46,7 +54,7 @@ init: {
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// Init All Modules
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// TODO: How we can make this dynamic?
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jsr Memory.init
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jsr Screen.init
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jsr Video.init
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jsr Print.init
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jsr Math.init
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jsr Keyboard.init
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@ -72,7 +80,7 @@ toDebug: {
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jsr Math.toDebug
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jsr Memory.toDebug
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jsr Print.toDebug
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jsr Screen.toDebug
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jsr Video.toDebug
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jsr WozShell.toDebug
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rts
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@ -22,7 +22,7 @@
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* = * "Keyboard Lib"
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* = * "Device: Keyboard"
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// ========================================================
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// ////// METHODS ROM /////////////////////////////////////
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@ -356,8 +356,8 @@ cloneEnd:
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// ////// DATA ////////////////////////////////////////////
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// ========================================================
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* = * "Keyboard Lib Data"
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module_type: .byte Module.TYPES.LIB
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* = * "Device: Keyboard Data"
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module_type: .byte Module.TYPES.DEVICE
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version: .byte 1, 1, 0
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.encoding "screencode_mixed"
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@ -10,17 +10,17 @@
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// ========================================================
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* = * "Screen Lib"
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* = * "Device: Video"
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// --------------------------------------------------------
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// ScreenClearChunks -
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// VideoClearChunks -
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// Fast clear screen mem chunks.
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//
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// Parameters:
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// baseAddress = Pointer to screen orcolor map Address
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// clearByte = Byte to use to clear screen
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// --------------------------------------------------------
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.macro ScreenClearChunks(baseAddress, clearByte) {
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.macro VideoClearChunks(baseAddress, clearByte) {
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lda #clearByte
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ldx #0
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!loop:
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@ -29,94 +29,94 @@
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sta baseAddress + $200, x
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sta baseAddress + $300, x
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inx
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bne.r !loop-
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bne !loop-
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}
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// --------------------------------------------------------
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// ScreenClear -
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// VideoClear -
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// Fast clear screen characters mem.
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//
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// Parameters:
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// clearByte = Byte to use to clear screen
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// --------------------------------------------------------
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.macro ScreenClear(clearByte) {
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ScreenClearChunks(Screen.VIDEO_ADDR, clearByte)
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.macro VideoClear(clearByte) {
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VideoClearChunks(Video.VIDEO_ADDR, clearByte)
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}
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// --------------------------------------------------------
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// ScreenClear -
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// VideoClear -
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// Fast clear screen Color Ram.
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//
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// Parameters:
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// clearByte = Byte to use to clear screen
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// --------------------------------------------------------
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.macro ScreenClearColorRam(clearByte) {
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ScreenClearChunks(Screen.COLOR_ADDR, clearByte)
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.macro VideoClearColorRam(clearByte) {
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VideoClearChunks(Video.COLOR_ADDR, clearByte)
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}
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// --------------------------------------------------------
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// ScreenSetBorderColor -
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// Set Screen border color.
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// VideoSetBorderColor -
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// Set Video border color.
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//
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// Parameters:
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// color = https://www.c64-wiki.com/wiki/Color
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// --------------------------------------------------------
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.macro ScreenSetBorderColor(color) {
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.macro VideoSetBorderColor(color) {
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lda #color
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sta $d020
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}
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// --------------------------------------------------------
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// ScreenSetBackgroundColor -
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// Set Screen Backfground color.
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// VideoSetBackgroundColor -
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// Set Video Backfground color.
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//
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// Parameters:
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// color = https://www.c64-wiki.com/wiki/Color
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// --------------------------------------------------------
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.macro ScreenSetBackgroundColor(color) {
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.macro VideoSetBackgroundColor(color) {
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lda #color
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sta $d021
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}
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// --------------------------------------------------------
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// ScreenSetMultiColor1 -
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// Set Screen Muticolor 1.
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// VideoSetMultiColor1 -
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// Set Video Muticolor 1.
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//
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// Parameters:
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// color = https://www.c64-wiki.com/wiki/Color
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// --------------------------------------------------------
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.macro ScreenSetMultiColor1(color) {
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.macro VideoSetMultiColor1(color) {
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lda #color
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sta $d022
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}
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// --------------------------------------------------------
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// ScreenSetMultiColor2 -
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// Set Screen Muticolor 2.
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// VideoSetMultiColor2 -
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// Set Video Muticolor 2.
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//
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// Parameters:
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// color = https://www.c64-wiki.com/wiki/Color
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// --------------------------------------------------------
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.macro ScreenSetMultiColor2(color) {
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.macro VideoSetMultiColor2(color) {
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lda #color
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sta $d023
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}
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// --------------------------------------------------------
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// ScreenSetMultiColorMode -
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// Set Screen Muticolor 2.
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// VideoSetMultiColorMode -
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// Set Video Muticolor 2.
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//
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// Parameters:
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// color = https://www.c64-wiki.com/wiki/Multicolor_Bitmap_Mode
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// --------------------------------------------------------
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.macro ScreenSetMultiColorMode() {
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.macro VideoSetMultiColorMode() {
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lda $d016
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ora #16
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sta $d016
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}
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.filenamespace Screen
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.filenamespace Video
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// ========================================================
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// ////// CONSTANTS ///////////////////////////////////////
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@ -141,8 +141,8 @@
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// --------------------------------------------------------
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init: {
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lda #$00
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sta MemMap.SCREEN.CursorCol
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sta MemMap.SCREEN.CursorRow
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sta MemMap.VIDEO.CursorCol
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sta MemMap.VIDEO.CursorRow
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rts
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}
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@ -169,7 +169,7 @@ scrollUp: {
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sta VIDEO_ADDR+(COLUMN_NUM*(ROWS_NUM-1)), x
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dex
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bpl !- // x == -1
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dec MemMap.SCREEN.CursorRow
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dec MemMap.VIDEO.CursorRow
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pla
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rts
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}
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@ -181,35 +181,35 @@ scrollUp: {
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// end of screen scrolling and Backspace.
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//
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// Parameters:
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// A = Character to Print SCREEN ASCII
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// A = Character to Print VIDEO ASCII
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// --------------------------------------------------------
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sendChar: {
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sei
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phx
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cmp #CR
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bne.r !+
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bne !+
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jsr screenNewLine
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iny
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jmp exit
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!:
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cmp #BS
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bne.r !+
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ldx MemMap.SCREEN.CursorCol
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bne !+
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ldx MemMap.VIDEO.CursorCol
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cmp #0
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beq exit
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dec MemMap.SCREEN.CursorCol
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dec MemMap.VIDEO.CursorCol
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!:
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// Store Base Video Address 16 bit
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ldx #<VIDEO_ADDR // Low byte
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stx MemMap.SCREEN.TempVideoPointer
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stx MemMap.VIDEO.TempVideoPointer
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ldx #>VIDEO_ADDR // High byte
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stx MemMap.SCREEN.TempVideoPointer+1
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stx MemMap.VIDEO.TempVideoPointer+1
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// Temp Save Y
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phy
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// CursorRow * 40
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ldy MemMap.SCREEN.CursorRow
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ldy MemMap.VIDEO.CursorRow
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sty MemMap.MATH.factor1
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ldy #COLUMN_NUM
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sty MemMap.MATH.factor2
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@ -219,28 +219,28 @@ sendChar: {
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clc
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pha
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lda MemMap.MATH.result
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adc MemMap.SCREEN.TempVideoPointer+1
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sta MemMap.SCREEN.TempVideoPointer+1
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adc MemMap.VIDEO.TempVideoPointer+1
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sta MemMap.VIDEO.TempVideoPointer+1
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lda MemMap.MATH.result+1
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adc MemMap.SCREEN.TempVideoPointer
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sta MemMap.SCREEN.TempVideoPointer
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adc MemMap.VIDEO.TempVideoPointer
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sta MemMap.VIDEO.TempVideoPointer
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ldy MemMap.SCREEN.CursorCol
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ldy MemMap.VIDEO.CursorCol
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cpy #COLUMN_NUM // Is this > col num?
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bcc.r noEndOfLine
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bcc noEndOfLine
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jsr screenNewLine // Yes? Add new list first
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ldy #1
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cpy MemMap.SCREEN.ScrollUpTriggered
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cpy MemMap.VIDEO.ScrollUpTriggered
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bne noScrollTriggered
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// Compensate Scroll
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sec
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lda MemMap.SCREEN.TempVideoPointer
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lda MemMap.VIDEO.TempVideoPointer
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sbc #1
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sta MemMap.SCREEN.TempVideoPointer
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sta MemMap.VIDEO.TempVideoPointer
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bcs !+
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dec MemMap.SCREEN.TempVideoPointer+1
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dec MemMap.VIDEO.TempVideoPointer+1
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!:
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noScrollTriggered:
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@ -251,16 +251,16 @@ sendChar: {
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cmp #BS
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bne !+
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lda #' '
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sta (MemMap.SCREEN.TempVideoPointer), y
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sta (MemMap.VIDEO.TempVideoPointer), y
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ply
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jmp exit
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!:
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// insert into screen
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sta (MemMap.SCREEN.TempVideoPointer), y
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sta (MemMap.VIDEO.TempVideoPointer), y
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ply
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iny
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inc MemMap.SCREEN.CursorCol
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inc MemMap.VIDEO.CursorCol
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exit:
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plx
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@ -276,28 +276,28 @@ sendChar: {
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screenNewLine: {
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pha
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lda #0
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sta MemMap.SCREEN.CursorCol
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sta MemMap.VIDEO.CursorCol
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lda #ROWS_NUM-1
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cmp MemMap.SCREEN.CursorRow // Are we at the screen bottom?
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cmp MemMap.VIDEO.CursorRow // Are we at the screen bottom?
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bne noScrollUp
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jsr Screen.scrollUp
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jsr Video.scrollUp
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lda #1 // Yes - Scroll up
|
||||
sta MemMap.SCREEN.ScrollUpTriggered
|
||||
sta MemMap.VIDEO.ScrollUpTriggered
|
||||
jmp done
|
||||
noScrollUp:
|
||||
lda #0
|
||||
sta MemMap.SCREEN.ScrollUpTriggered
|
||||
sta MemMap.VIDEO.ScrollUpTriggered
|
||||
done:
|
||||
inc MemMap.SCREEN.CursorRow
|
||||
inc MemMap.VIDEO.CursorRow
|
||||
pla
|
||||
rts
|
||||
}
|
||||
|
||||
* = * "Screen Lib Data"
|
||||
module_type: .byte Module.TYPES.LIB
|
||||
* = * "Device: Video Data"
|
||||
module_type: .byte Module.TYPES.DEVICE
|
||||
version: .byte 1, 0, 1
|
||||
module_name:
|
||||
.text "screen"
|
||||
.text "video"
|
||||
.byte 0
|
||||
|
||||
#import "../core/mem_map.asm"
|
||||
209
hardware/cia.asm
Normal file
209
hardware/cia.asm
Normal file
@ -0,0 +1,209 @@
|
||||
#importonce
|
||||
|
||||
.filenamespace Cia
|
||||
// https://www.c64-wiki.com/wiki/CIA
|
||||
|
||||
// ========================================================
|
||||
// ////// CONSTANTS ///////////////////////////////////////
|
||||
// ========================================================
|
||||
|
||||
// CIA 1
|
||||
// ========================================================
|
||||
|
||||
.label C1PRA = $DC00 // CIA 1 A Register Monitoring/control of the 8 data lines of Port A
|
||||
// Read/Write: Bit 0..7 keyboard matrix columns
|
||||
// Read: Joystick Port 2: Bit 0..3 Direction (Left/Right/Up/Down), Bit 4 Fire button. 0 = activated.
|
||||
// Read: Lightpen: Bit 4 (as fire button), connected also with "/LP" (Pin 9) of the VIC
|
||||
// Read: Paddles: Bit 2..3 Fire buttons, Bit 6..7 Switch control port 1 (%01=Paddles A) or 2 (%10=Paddles B)
|
||||
|
||||
.label C1PRB = $DC01 // Monitoring/control of the 8 data lines of Port B. The lines are used for multiple purposes:
|
||||
// Read/Write: Bit 0..7 keyboard matrix rows
|
||||
// Read: Joystick Port 1: Bit 0..3 Direction (Left/Right/Up/Down), Bit 4 Fire button. 0 = activated.
|
||||
// Read: Bit 6: Timer A: Toggle/Impulse output (see register 14 bit 2)
|
||||
// Read: Bit 7: Timer B: Toggle/Impulse output (see register 15 bit 2)
|
||||
|
||||
.label C1DDRA = $DC02 // Bit X: 0=Input (read only), 1=Output (read and write)
|
||||
|
||||
.label C1DDRB = $DC03 // Bit X: 0=Input (read only), 1=Output (read and write)
|
||||
|
||||
.label C1TALO = $DC04 // Read: actual value Timer A (Low Byte)
|
||||
// Writing: Set latch of Timer A (Low Byte)
|
||||
|
||||
.label C1TAHI = $DC05 // Read: actual value Timer A (High Byte)
|
||||
// Writing: Set latch of timer A (High Byte) - if the timer is stopped, the high-byte will automatically be re-set as well
|
||||
|
||||
|
||||
.label C1TBLO = $DC06 // Read: actual value Timer B (Low Byte)
|
||||
// Writing: Set latch of Timer B (Low Byte)
|
||||
|
||||
|
||||
.label C1TBHI = $DC07 // Read: actual value Timer B (High Byte)
|
||||
// Writing: Set latch of timer B (High Byte) - if the timer is stopped, the high-byte will automatically be re-set as well
|
||||
|
||||
.label C1TOD10THS = $DC08 // Read:
|
||||
// Bit 0..3: Tenth seconds in BCD-format ($0-$9)
|
||||
// Bit 4..7: always 0
|
||||
// Writing:
|
||||
// Bit 0..3: if CRB-Bit7=0: Set the tenth seconds in BCD-format
|
||||
// Bit 0..3: if CRB-Bit7=1: Set the tenth seconds of the alarm time in BCD-format
|
||||
|
||||
.label C1TODSEC = $DC09 // Bit 0..3: Single seconds in BCD-format ($0-$9)
|
||||
// Bit 4..6: Ten seconds in BCD-format ($0-$5)
|
||||
// Bit 7: always 0
|
||||
|
||||
.label C1TODMIN = $DC0A // Bit 0..3: Single minutes in BCD-format( $0-$9)
|
||||
// Bit 4..6: Ten minutes in BCD-format ($0-$5)
|
||||
// Bit 7: always 0
|
||||
|
||||
.label C1TODHR = $DC0B // Bit 0..3: Single hours in BCD-format ($0-$9)
|
||||
// Bit 4..6: Ten hours in BCD-format ($0-$5)
|
||||
// Bit 7: Differentiation AM/PM, 0=AM, 1=PM
|
||||
// Writing into this register stops TOD, until register 8 (TOD 10THS) will be read.
|
||||
|
||||
.label C1TSDR = $DC0C // The byte within this register will be shifted bitwise to or from the SP-pin with every positive slope at the CNT-pin.
|
||||
|
||||
.label C1ICR = $DC0D // CIA1 is connected to the IRQ-Line.
|
||||
// Read: (Bit0..4 = INT DATA, Origin of the interrupt)
|
||||
// Bit 0: 1 = Underflow Timer A
|
||||
// Bit 1: 1 = Underflow Timer B
|
||||
// Bit 2: 1 = Time of day and alarm time is equal
|
||||
// Bit 3: 1 = SDR full or empty, so full byte was transferred, depending of operating mode serial bus
|
||||
// Bit 4: 1 = IRQ Signal occured at FLAG-pin (cassette port Data input, serial bus SRQ IN)
|
||||
// Bit 5..6: always 0
|
||||
// Bit 7: 1 = IRQ An interrupt occured, so at least one bit of INT MASK and INT DATA is set in both registers.
|
||||
// Flags will be cleared after reading the register!
|
||||
// Write: (Bit 0..4 = INT MASK, Interrupt mask)
|
||||
// Bit 0: 1 = Interrupt release through timer A underflow
|
||||
// Bit 1: 1 = Interrupt release through timer B underflow
|
||||
// Bit 2: 1 = Interrupt release if clock=alarmtime
|
||||
// Bit 3: 1 = Interrupt release if a complete byte has been received/sent.
|
||||
// Bit 4: 1 = Interrupt release if a positive slope occurs at the FLAG-Pin.
|
||||
// Bit 5..6: unused
|
||||
// Bit 7: Source bit. 0 = set bits 0..4 are clearing the according mask bit. 1 = set bits 0..4 are setting the according mask bit. If all bits 0..4 are cleared, there will be no change to the mask.
|
||||
|
||||
.label C1CRA = $DC0E // Control Timer A
|
||||
// Bit 0: 0 = Stop timer; 1 = Start timer
|
||||
// Bit 1: 1 = Indicates a timer underflow at port B in bit 6.
|
||||
// Bit 2: 0 = Through a timer overflow, bit 6 of port B will get high for one cycle , 1 = Through a timer underflow, bit 6 of port B will be inverted
|
||||
// Bit 3: 0 = Timer-restart after underflow (latch will be reloaded), 1 = Timer stops after underflow.
|
||||
// Bit 4: 1 = Load latch into the timer once.
|
||||
// Bit 5: 0 = Timer counts system cycles, 1 = Timer counts positive slope at CNT-pin
|
||||
// Bit 6: Direction of the serial shift register, 0 = SP-pin is input (read), 1 = SP-pin is output (write)
|
||||
// Bit 7: Real Time Clock, 0 = 60 Hz, 1 = 50 Hz
|
||||
|
||||
.label C1CRB = $DC0F // Control Timer B
|
||||
// Bit 0: 0 = Stop timer; 1 = Start timer
|
||||
// Bit 1: 1 = Indicates a timer underflow at port B in bit 7.
|
||||
// Bit 2: 0 = Through a timer overflow, bit 7 of port B will get high for one cycle , 1 = Through a timer underflow, bit 7 of port B will be inverted
|
||||
// Bit 3: 0 = Timer-restart after underflow (latch will be reloaded), 1 = Timer stops after underflow.
|
||||
// Bit 4: 1 = Load latch into the timer once.
|
||||
// Bit 5..6:
|
||||
// %00 = Timer counts System cycle
|
||||
// %01 = Timer counts positive slope on CNT-pin
|
||||
// %10 = Timer counts underflow of timer A
|
||||
// %11 = Timer counts underflow of timer A if the CNT-pin is high
|
||||
// Bit 7: 0 = Writing into the TOD register sets the clock time, 1 = Writing into the TOD register sets the alarm time.
|
||||
|
||||
|
||||
// CIA 2
|
||||
// ========================================================
|
||||
|
||||
.label C2PRA = $DD00 // CIA 2 A Register Monitoring/control of the 8 data lines of Port A
|
||||
// Bit 0..1: Select the position of the VIC-memory
|
||||
// %00, 0: Bank 3: $C000-$FFFF, 49152-65535
|
||||
// %01, 1: Bank 2: $8000-$BFFF, 32768-49151
|
||||
// %10, 2: Bank 1: $4000-$7FFF, 16384-32767
|
||||
// %11, 3: Bank 0: $0000-$3FFF, 0-16383 (standard)
|
||||
// Bit 2: RS-232: TXD Output, userport: Data PA 2 (pin M)
|
||||
// Bit 3..5: serial bus Output (0=High/Inactive, 1=Low/Active)
|
||||
// Bit 3: ATN OUT
|
||||
// Bit 4: CLOCK OUT
|
||||
// Bit 5: DATA OUT
|
||||
// Bit 6..7: serial bus Input (0=Low/Active, 1=High/Inactive)
|
||||
// Bit 6: CLOCK IN
|
||||
// Bit 7: DATA IN
|
||||
|
||||
.label C2PRB = $DD01 // Monitoring/control of the 8 data lines of Port B. The lines are used for multiple purposes:
|
||||
// Bit 0..7: userport Data PB 0-7 (Pins C,D,E,F,H,J,K,L)
|
||||
// The KERNAL offers several RS232-Routines, which use the pins as followed:
|
||||
// Bit 0, 3..7: RS-232: reading
|
||||
// Bit 0: RXD
|
||||
// Bit 3: RI
|
||||
// Bit 4: DCD
|
||||
// Bit 5: User port pin J
|
||||
// Bit 6: CTS
|
||||
// Bit 7: DSR
|
||||
// Bit 1..5: RS-232: writing
|
||||
// Bit 1: RTS
|
||||
// Bit 2: DTR
|
||||
// Bit 3: RI
|
||||
// Bit 4: DCD
|
||||
// Bit 5: User port pin J
|
||||
|
||||
.label C2DDRA = $DD02 // Bit X: 0=Input (read only), 1=Output (read and write)
|
||||
|
||||
.label C2DDRB = $DD03 // Bit X: 0=Input (read only), 1=Output (read and write)
|
||||
|
||||
.label C2TALO = $DD04 // Read: actual value Timer A (Low Byte)
|
||||
// Writing: Set latch of Timer A (Low Byte)
|
||||
|
||||
.label C2TAHI = $DD05 // Read: actual value Timer A (High Byte)
|
||||
// Writing: Set latch of timer A (High Byte) - if the timer is stopped, the high-byte will automatically be re-set as well
|
||||
|
||||
|
||||
.label C2TBLO = $DD06 // Read: actual value Timer B (Low Byte)
|
||||
// Writing: Set latch of Timer B (Low Byte)
|
||||
|
||||
|
||||
.label C2TBHI = $DD07 // Read: actual value Timer B (High Byte)
|
||||
// Writing: Set latch of timer B (High Byte) - if the timer is stopped, the high-byte will automatically be re-set as well
|
||||
|
||||
.label C2TOD10THS = $DD08 // Read:
|
||||
// Bit 0..3: Tenth seconds in BCD-format ($0-$9)
|
||||
// Bit 4..7: always 0
|
||||
// Writing:
|
||||
// Bit 0..3: if CRB-Bit7=0: Set the tenth seconds in BCD-format
|
||||
// Bit 0..3: if CRB-Bit7=1: Set the tenth seconds of the alarm time in BCD-format
|
||||
|
||||
.label C2TODSEC = $DD09 // Bit 0..3: Single seconds in BCD-format ($0-$9)
|
||||
// Bit 4..6: Ten seconds in BCD-format ($0-$5)
|
||||
// Bit 7: always 0
|
||||
|
||||
.label C2TODMIN = $DD0A // Bit 0..3: Single minutes in BCD-format( $0-$9)
|
||||
// Bit 4..6: Ten minutes in BCD-format ($0-$5)
|
||||
// Bit 7: always 0
|
||||
|
||||
.label C2TODHR = $DD0B // Bit 0..3: Single hours in BCD-format ($0-$9)
|
||||
// Bit 4..6: Ten hours in BCD-format ($0-$5)
|
||||
// Bit 7: Differentiation AM/PM, 0=AM, 1=PM
|
||||
// Writing into this register stops TOD, until register 8 (TOD 10THS) will be read.
|
||||
|
||||
.label C2TSDR = $DD0C // The byte within this register will be shifted bitwise to or from the SP-pin with every positive slope at the CNT-pin.
|
||||
|
||||
.label C2ICR = $DD0D // CIA2 is connected to the NMI-Line.
|
||||
// Bit 4: 1 = NMI Signal occured at FLAG-pin (RS-232 data received)
|
||||
// Bit 7: 1 = NMI An interrupt occured, so at least one bit of INT MASK and INT DATA is set in both registers.
|
||||
|
||||
.label C2CRA = $DD0E // Control Timer A
|
||||
// Bit 0: 0 = Stop timer; 1 = Start timer
|
||||
// Bit 1: 1 = Indicates a timer underflow at port B in bit 6.
|
||||
// Bit 2: 0 = Through a timer overflow, bit 6 of port B will get high for one cycle , 1 = Through a timer underflow, bit 6 of port B will be inverted
|
||||
// Bit 3: 0 = Timer-restart after underflow (latch will be reloaded), 1 = Timer stops after underflow.
|
||||
// Bit 4: 1 = Load latch into the timer once.
|
||||
// Bit 5: 0 = Timer counts system cycles, 1 = Timer counts positive slope at CNT-pin
|
||||
// Bit 6: Direction of the serial shift register, 0 = SP-pin is input (read), 1 = SP-pin is output (write)
|
||||
// Bit 7: Real Time Clock, 0 = 60 Hz, 1 = 50 Hz
|
||||
|
||||
.label C2CRB = $DD0F // Control Timer B
|
||||
// Bit 0: 0 = Stop timer; 1 = Start timer
|
||||
// Bit 1: 1 = Indicates a timer underflow at port B in bit 7.
|
||||
// Bit 2: 0 = Through a timer overflow, bit 7 of port B will get high for one cycle , 1 = Through a timer underflow, bit 7 of port B will be inverted
|
||||
// Bit 3: 0 = Timer-restart after underflow (latch will be reloaded), 1 = Timer stops after underflow.
|
||||
// Bit 4: 1 = Load latch into the timer once.
|
||||
// Bit 5..6:
|
||||
// %00 = Timer counts System cycle
|
||||
// %01 = Timer counts positive slope on CNT-pin
|
||||
// %10 = Timer counts underflow of timer A
|
||||
// %11 = Timer counts underflow of timer A if the CNT-pin is high
|
||||
// Bit 7: 0 = Writing into the TOD register sets the clock time, 1 = Writing into the TOD register sets the alarm time.
|
||||
|
||||
25
hardware/mc6502.asm
Normal file
25
hardware/mc6502.asm
Normal file
@ -0,0 +1,25 @@
|
||||
#importonce
|
||||
.filenamespace MC6502
|
||||
https://sta.c64.org/cbm64mem.html
|
||||
|
||||
// ========================================================
|
||||
// ////// CONSTANTS ///////////////////////////////////////
|
||||
// ========================================================
|
||||
|
||||
|
||||
.label ZR0 = $0 // Processor port data direction register. Bits:
|
||||
// Bit #x: 0 = Bit #x in processor port can only be read; 1 = Bit #x in processor port can be read and written.
|
||||
// Default: $2F, %00101111.
|
||||
|
||||
.label ZR1 = $1 // Processor port. Bits:
|
||||
// Bits #0-#2: Configuration for memory areas $A000-$BFFF, $D000-$DFFF and $E000-$FFFF. Values:
|
||||
// %x00: RAM visible in all three areas.
|
||||
// %x01: RAM visible at $A000-$BFFF and $E000-$FFFF.
|
||||
// %x10: RAM visible at $A000-$BFFF; KERNAL ROM visible at $E000-$FFFF.
|
||||
// %x11: BASIC ROM visible at $A000-$BFFF; KERNAL ROM visible at $E000-$FFFF.
|
||||
// %0xx: Character ROM visible at $D000-$DFFF. (Except for the value %000, see above.)
|
||||
// %1xx: I/O area visible at $D000-$DFFF. (Except for the value %100, see above.)
|
||||
// Bit #3: Datasette output signal level.
|
||||
// Bit #4: Datasette button status; 0 = One or more of PLAY, RECORD, F.FWD or REW pressed; 1 = No button is pressed.
|
||||
// Bit #5: Datasette motor control; 0 = On; 1 = Off.
|
||||
// Default: $37, %00110111.
|
||||
30
hardware/ram.asm
Normal file
30
hardware/ram.asm
Normal file
@ -0,0 +1,30 @@
|
||||
#importonce
|
||||
.filenamespace Ram
|
||||
|
||||
// ========================================================
|
||||
// ////// CONSTANTS ///////////////////////////////////////
|
||||
// ========================================================
|
||||
|
||||
|
||||
|
||||
// ========================================================
|
||||
// ////// METHODS /////////////////////////////////////////
|
||||
// ========================================================
|
||||
|
||||
|
||||
* = * "Ram HW"
|
||||
|
||||
init: {
|
||||
// Clear Zero Page
|
||||
lda #$00
|
||||
tay
|
||||
!:
|
||||
sta $0002,y
|
||||
sta $0200,y
|
||||
sta $0300,y
|
||||
iny
|
||||
bne !-
|
||||
rts
|
||||
}
|
||||
|
||||
|
||||
25
hardware/sid.asm
Normal file
25
hardware/sid.asm
Normal file
@ -0,0 +1,25 @@
|
||||
#importonce
|
||||
.filenamespace Sid
|
||||
https://www.c64-wiki.com/wiki/SID
|
||||
|
||||
// ========================================================
|
||||
// ////// CONSTANTS ///////////////////////////////////////
|
||||
// ========================================================
|
||||
|
||||
|
||||
.label FV1L = $d400 // frequency voice 1 low byte
|
||||
.label FV1H = $d401 // frequency voice 1 high byte
|
||||
.label PCWV1L = $d402 // pulse wave duty cycle voice 1 low byte
|
||||
|
||||
// TODO: Add more
|
||||
|
||||
.label FMVC = $d418 // filter mode and main volume control
|
||||
// Bit 7 mute voice 3
|
||||
// Bit 6 high pass
|
||||
// Bit 5 band pass
|
||||
// Bit 4 low pass
|
||||
// Bit 3-0 main volume
|
||||
|
||||
|
||||
|
||||
|
||||
36
hardware/vic.asm
Normal file
36
hardware/vic.asm
Normal file
@ -0,0 +1,36 @@
|
||||
#importonce
|
||||
.filenamespace Vic
|
||||
// https://www.c64-wiki.com/wiki/VIC
|
||||
// https://www.c64-wiki.com/wiki/Page_208-211
|
||||
|
||||
// ========================================================
|
||||
// ////// CONSTANTS ///////////////////////////////////////
|
||||
// ========================================================
|
||||
|
||||
.label VICREG = $D000
|
||||
|
||||
.label CR2 = $D016 // Control register 2
|
||||
|
||||
|
||||
* = * "VIC Functions"
|
||||
|
||||
init: {
|
||||
ldx #47
|
||||
px4:
|
||||
lda tvic-1, x
|
||||
sta VICREG-1, x
|
||||
dex
|
||||
bne px4
|
||||
rts
|
||||
}
|
||||
|
||||
* = * "VIC Init Data"
|
||||
|
||||
tvic:
|
||||
.byte $00, $00, $00, $00, $00, $00, $00, $00
|
||||
.byte $00, $00, $00, $00, $00, $00, $00, $00
|
||||
.byte $00, $9B, $37, $00, $00, $00, $08, $00
|
||||
.byte $14, $0F, $00, $00 ,$00, $00, $00, $00
|
||||
.byte $0E, $06, $01, $02, $03, $04, $00, $01
|
||||
.byte $02, $03, $04, $05, $06, $07, $4C
|
||||
|
||||
@ -1,7 +1,6 @@
|
||||
|
||||
#importonce
|
||||
#import "../core/module.asm"
|
||||
#import "../core/module.asm"
|
||||
|
||||
|
||||
.filenamespace Math
|
||||
@ -50,13 +49,13 @@ multiply: {
|
||||
lda #$00
|
||||
ldx #$08
|
||||
clc
|
||||
m0: bcc.r m1
|
||||
m0: bcc m1
|
||||
clc
|
||||
adc MemMap.MATH.factor2
|
||||
m1: ror
|
||||
ror MemMap.MATH.factor1
|
||||
dex
|
||||
bpl.r m0
|
||||
bpl m0
|
||||
ldx MemMap.MATH.factor1
|
||||
|
||||
sta MemMap.MATH.result
|
||||
|
||||
@ -1,7 +1,6 @@
|
||||
|
||||
#importonce
|
||||
#import "../core/module.asm"
|
||||
#import "../core/module.asm"
|
||||
#import "../core/pseudo.asm"
|
||||
|
||||
|
||||
@ -143,7 +142,7 @@ clone: {
|
||||
sta (MemMap.MEMORY.dest),y
|
||||
iny
|
||||
dex
|
||||
bne md3
|
||||
bne md3
|
||||
cli
|
||||
md4:
|
||||
plr
|
||||
@ -223,5 +222,5 @@ module_name:
|
||||
|
||||
|
||||
#import "../core/mem_map.asm"
|
||||
#import "../libs/screen.asm"
|
||||
#import "../devices/video.asm"
|
||||
|
||||
|
||||
@ -1,7 +1,7 @@
|
||||
|
||||
#importonce
|
||||
#import "math.asm"
|
||||
#import "../libs/screen.asm"
|
||||
#import "../devices/video.asm"
|
||||
#import "../core/module.asm"
|
||||
|
||||
|
||||
@ -20,7 +20,7 @@
|
||||
}
|
||||
|
||||
.macro PrintNewLine() {
|
||||
jsr Screen.screenNewLine
|
||||
jsr Video.screenNewLine
|
||||
}
|
||||
|
||||
|
||||
@ -52,22 +52,22 @@ toDebug: {
|
||||
|
||||
// --------------------------------------------------------
|
||||
// printPetChar -
|
||||
// Convert a Char from PET ASCII and print it out on Screen
|
||||
// Convert a Char from PET ASCII and print it out on Video
|
||||
//
|
||||
// Parameters:
|
||||
// A = PET ASCII char to print
|
||||
// --------------------------------------------------------
|
||||
printPetChar: {
|
||||
phr
|
||||
jsr Print.petCharToScreenChar
|
||||
jsr Screen.sendChar
|
||||
jsr Print.petCharToVideoChar
|
||||
jsr Video.sendChar
|
||||
plr
|
||||
rts
|
||||
}
|
||||
|
||||
// --------------------------------------------------------
|
||||
// printLine -
|
||||
// Print a Null terminated SCREEN ASCII string to screen.
|
||||
// Print a Null terminated VIDEO ASCII string to screen.
|
||||
//
|
||||
// Parameters:
|
||||
// A = low byte string address
|
||||
@ -81,7 +81,7 @@ printLine: {
|
||||
lda (MemMap.PRINT.TempStringPointer), y
|
||||
cmp #0
|
||||
beq exit
|
||||
jsr Screen.sendChar
|
||||
jsr Video.sendChar
|
||||
jmp printLoop
|
||||
exit:
|
||||
rts
|
||||
@ -125,16 +125,16 @@ byteToHex: {
|
||||
}
|
||||
|
||||
// --------------------------------------------------------
|
||||
// petCharToScreenChar -
|
||||
// Convert a PET ASCII Char to a SCREEN ASCII Char
|
||||
// petCharToVideoChar -
|
||||
// Convert a PET ASCII Char to a VIDEO ASCII Char
|
||||
//
|
||||
// Parameters:
|
||||
// A = PET ASCII Byte to Convert
|
||||
//
|
||||
// Result:
|
||||
// A = Converted ASCII SCREEN Char
|
||||
// A = Converted ASCII VIDEO Char
|
||||
// --------------------------------------------------------
|
||||
petCharToScreenChar: {
|
||||
petCharToVideoChar: {
|
||||
// $00-$1F
|
||||
cmp #$1f
|
||||
bcs !+
|
||||
|
||||
@ -3,7 +3,7 @@
|
||||
#import "../core/system.asm"
|
||||
#import "../libs/print.asm"
|
||||
#import "../core/module.asm"
|
||||
#import "../libs/keyboard.asm"
|
||||
#import "../devices/keyboard.asm"
|
||||
|
||||
.filenamespace WozShell
|
||||
|
||||
@ -56,9 +56,9 @@ loop: {
|
||||
|
||||
execute:
|
||||
jsr WozShell.push // CR in Buffer
|
||||
jsr Screen.screenNewLine
|
||||
jsr Video.screenNewLine
|
||||
jsr WozShell.exec
|
||||
jsr Screen.screenNewLine
|
||||
jsr Video.screenNewLine
|
||||
jsr WozShell.clear
|
||||
jmp loop
|
||||
}
|
||||
@ -72,7 +72,7 @@ push: {
|
||||
ldy MemMap.SHELL.pos
|
||||
iny
|
||||
cpy #127
|
||||
beq.r done
|
||||
beq done
|
||||
sty MemMap.SHELL.pos
|
||||
sta MemMap.SHELL.buffer, y
|
||||
done:
|
||||
@ -135,7 +135,7 @@ wozExec: {
|
||||
asl
|
||||
SETMODE:
|
||||
cmp #0
|
||||
beq.r !+
|
||||
beq !+
|
||||
eor #%10000000
|
||||
!:
|
||||
sta MemMap.SHELL.MODE
|
||||
@ -145,7 +145,7 @@ wozExec: {
|
||||
NEXTITEM:
|
||||
lda MemMap.SHELL.buffer,Y //Get character
|
||||
cmp #CR
|
||||
bne.r CONT // We're done if it's CR!
|
||||
bne CONT // We're done if it's CR!
|
||||
rts
|
||||
CONT:
|
||||
cmp #'.'
|
||||
@ -317,7 +317,7 @@ helpString:
|
||||
.byte $8e, 0
|
||||
|
||||
aboutString:
|
||||
.text "woz64 mon - v 0.1.5"
|
||||
.text "woz64 mon - v 1.2.0"
|
||||
.byte $8e, 0
|
||||
lineString:
|
||||
.text "----------------------------------------"
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user