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stid
parent
04c83fd5a2
commit
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25
keyb2.asm
25
keyb2.asm
@ -10,7 +10,7 @@
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.const cSYS_DelayValue = 32
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.const cKeybW_Row1 = $FE
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init:
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init: {
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lda #64
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sta MemMap.KEYB2.SYS_Lstx
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sta MemMap.KEYB2.SYS_Sfdx
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@ -31,24 +31,9 @@ init:
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sta MemMap.KEYB2.SYS_Xmax
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// CLODE TO RAM
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lda #<cloneStart
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sta MemMap.MEMORY.from
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lda #>cloneStart
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sta MemMap.MEMORY.from+1
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lda #<$1000
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sta MemMap.MEMORY.to
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lda #>$1000
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sta MemMap.MEMORY.to+1
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lda #<cloneEnd-ReadKeyb
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sta MemMap.MEMORY.size+1
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lda #>cloneEnd-ReadKeyb
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sta MemMap.MEMORY.size
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jsr Memory.clone
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clone(cloneStart, cloneEnd, $1000)
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rts
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}
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KeyMapVec:
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.word KeyMap1, KeyMap2, KeyMap3, KeyMap4
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@ -259,8 +244,10 @@ GetKey: lda MemMap.KEYB2.SYS_Ndx
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tya
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clc
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rts
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}
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* = * "Keyb: cloneEnd"
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cloneEnd:
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}
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5
main.asm
5
main.asm
@ -1,4 +1,4 @@
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///BasicUpstart2(start)
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BasicUpstart2(start)
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* = $8000 "Main"
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@ -54,9 +54,8 @@ Raster: cmp $D012
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jsr Screen.screenNewLine
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jsr Shell.clear
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jmp loop
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inputChar:
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inputChar:
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jsr Shell.push
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jsr Screen.petToScreen
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cPrint()
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18
mem_map.asm
18
mem_map.asm
@ -11,14 +11,16 @@
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.label CursorRow = ZPAGE_BASE+5 // 1 byte
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.label tempY = ZPAGE_BASE+6 // 1 byte
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.label tempX = ZPAGE_BASE+7 // 1 byte
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.label cTempY = ZPAGE_BASE+8 // 1 byte
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.label PrintPetCharY = ZPAGE_BASE+8 // 1 byte
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.label PrintPetCharX = ZPAGE_BASE+9 // 1 byte
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.label ScrollUpTriggered = ZPAGE_BASE+10 // 1 byte
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}
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.namespace MATH {
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.label factor1 = ZPAGE_BASE+9 // 1 byte
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.label factor2 = ZPAGE_BASE+10 // 1 byte
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.label multiTmpX = ZPAGE_BASE+11 // 1 byte
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.label result = ZPAGE_BASE+12 // 2 bytes
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.label factor1 = ZPAGE_BASE+11 // 1 byte
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.label factor2 = ZPAGE_BASE+12 // 1 byte
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.label multiTmpX = ZPAGE_BASE+13 // 1 byte
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.label result = ZPAGE_BASE+14 // 2 bytes
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}
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.namespace KEYB2 {
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@ -36,7 +38,7 @@
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.namespace MEMORY {
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.label from = ZPAGE_BASE+56 // 2 bytes
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.label to = ZPAGE_BASE+58 // 2 bytes
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.label dest = ZPAGE_BASE+58 // 2 bytes
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.label size = ZPAGE_BASE+60 // 2 bytes
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}
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@ -46,8 +48,8 @@
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.label L = ZPAGE_BASE+64 // 1 bytes
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.label H = ZPAGE_BASE+65 // 1 bytes
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.label YSAV = ZPAGE_BASE+66 // 1 bytes
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.label STL = ZPAGE_BASE+67 // 1 bytes
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.label STH = ZPAGE_BASE+68 // 1 bytes
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.label STL = ZPAGE_BASE+67 // 1 bytes
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.label STH = ZPAGE_BASE+68 // 1 bytes
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.label XAML = ZPAGE_BASE+69 // 1 bytes
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.label XAMH = ZPAGE_BASE+70 // 1 bytes
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32
memory.asm
32
memory.asm
@ -1,33 +1,55 @@
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#importonce
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.filenamespace Memory
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#import "mem_map.asm"
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* = * "Memory Routines"
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.macro clone(from, to, dest) {
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lda #<from
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sta MemMap.MEMORY.from
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lda #>from
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sta MemMap.MEMORY.from+1
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lda #<dest
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sta MemMap.MEMORY.dest
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lda #>dest
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sta MemMap.MEMORY.dest+1
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lda #<to-from
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sta MemMap.MEMORY.size+1
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lda #>to-from
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sta MemMap.MEMORY.size
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jsr Memory._clone
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}
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.filenamespace Memory
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// move memory down
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//
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// from = source start address
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// to = destination start address
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// size = number of bytes to move
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//
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clone:
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_clone: {
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ldy #0
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ldx MemMap.MEMORY.size
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beq md2
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md1: lda (MemMap.MEMORY.from),y // move a page at a time
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sta (MemMap.MEMORY.to),y
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sta (MemMap.MEMORY.dest),y
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iny
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bne md1
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inc MemMap.MEMORY.from+1
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inc MemMap.MEMORY.to+1
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inc MemMap.MEMORY.dest+1
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dex
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bne md1
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md2: ldx MemMap.MEMORY.size+1
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beq md4
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md3: lda (MemMap.MEMORY.from),y // move the remaining bytes
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sta (MemMap.MEMORY.to),y
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sta (MemMap.MEMORY.dest),y
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iny
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dex
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bne md3
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md4: rts
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}
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298
screen.asm
298
screen.asm
@ -1,6 +1,7 @@
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#importonce
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#import "math.asm"
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#import "mem_map.asm"
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#import "memory.asm"
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// -----------------------
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// MACROS
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@ -15,53 +16,51 @@
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}
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.macro cPrint() {
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sty MemMap.SCREEN.cTempY
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jsr Screen.printChar
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ldy MemMap.SCREEN.cTempY
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jsr Screen.printPetChar
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}
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.macro ClearScreen(screen, clearByte) {
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lda #clearByte
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ldx #0
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lda #clearByte
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ldx #0
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!loop:
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sta screen, x
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sta screen + $100, x
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sta screen + $200, x
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sta screen + $300, x
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sta screen, x
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sta screen + $100, x
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sta screen + $200, x
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sta screen + $300, x
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inx
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bne.r !loop-
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bne.r !loop-
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}
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.macro ClearColorRam(clearByte) {
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lda #clearByte
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ldx #0
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lda #clearByte
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ldx #0
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!loop:
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sta $D800, x
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sta $D800 + $100, x
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sta $D800 + $200, x
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sta $D800 + $300, x
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sta $D800, x
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sta $D800 + $100, x
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sta $D800 + $200, x
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sta $D800 + $300, x
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inx
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bne.r !loop-
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bne.r !loop-
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}
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.macro SetBorderColor(color) {
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lda #color
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sta $d020
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lda #color
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sta $d020
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}
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.macro SetBackgroundColor(color) {
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lda #color
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sta $d021
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lda #color
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sta $d021
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}
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.macro SetMultiColor1(color) {
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lda #color
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sta $d022
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lda #color
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sta $d022
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}
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.macro SetMultiColor2(color) {
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lda #color
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sta $d023
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lda #color
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sta $d023
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}
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.macro SetMultiColorMode() {
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@ -71,9 +70,9 @@
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}
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.macro SetScrollMode() {
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lda $D016
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eor #%00001000
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sta $D016
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lda $D016
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eor #%00001000
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sta $D016
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}
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.filenamespace Screen
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@ -83,11 +82,9 @@
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// CONSTANTS
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// -----------------------
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.namespace constants {
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.label VIDEO_ADDR = $0400
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.label COLUMN_NUM = 40
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.label ROWS_NUM = 25
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}
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.const VIDEO_ADDR = $0400
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.const COLUMN_NUM = 40
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.const ROWS_NUM = 25
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// -----------------------
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@ -95,66 +92,107 @@
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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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rts
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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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rts
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}
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scrollUp: {
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pha
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clone(VIDEO_ADDR+40, VIDEO_ADDR+(COLUMN_NUM*(ROWS_NUM)), VIDEO_ADDR)
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lda #32
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ldx #00
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!:
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sta VIDEO_ADDR+(COLUMN_NUM*(ROWS_NUM-1)), x
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inx
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cpx #40
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bne !-
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dec MemMap.SCREEN.CursorRow
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pla
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rts
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}
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printPetChar: {
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pha
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stx MemMap.SCREEN.PrintPetCharX
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sty MemMap.SCREEN.PrintPetCharY
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jsr Screen.petToScreen
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jsr Screen.printChar
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ldy MemMap.SCREEN.PrintPetCharY
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ldx MemMap.SCREEN.PrintPetCharX
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pla
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rts
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}
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printChar: {
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stx MemMap.SCREEN.tempX
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stx MemMap.SCREEN.tempX
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// New Line
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cmp #$8e
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bne.r !+
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jsr screenNewLine
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cmp #$8e
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bne.r !+
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jsr screenNewLine
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iny
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rts
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!:
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// Store Base Video Address 16 bit
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ldx #<constants.VIDEO_ADDR // Low byte
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stx MemMap.SCREEN.TempVideoPointer
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ldx #>constants.VIDEO_ADDR // High byte
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stx MemMap.SCREEN.TempVideoPointer+1
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ldx #<VIDEO_ADDR // Low byte
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stx MemMap.SCREEN.TempVideoPointer
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ldx #>VIDEO_ADDR // High byte
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stx MemMap.SCREEN.TempVideoPointer+1
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// Temp Save Y
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sty MemMap.SCREEN.tempY
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sty MemMap.SCREEN.tempY
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// CursorRow * 40
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ldy MemMap.SCREEN.CursorRow
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sty MemMap.MATH.factor1
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ldy #constants.COLUMN_NUM
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sty MemMap.MATH.factor2
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jsr Math.multiply
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ldy MemMap.SCREEN.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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jsr Math.multiply
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// Add mul result to TempVideoPointer
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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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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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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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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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ldy MemMap.SCREEN.CursorCol
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cpy #COLUMN_NUM // Is this > col num?
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bcc.r 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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bne noScrollTriggered
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.break
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// Compesat Scroll
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sec
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lda MemMap.SCREEN.TempVideoPointer
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sbc #1
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sta MemMap.SCREEN.TempVideoPointer
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bcs !+
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dec MemMap.SCREEN.TempVideoPointer+1
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!:
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noScrollTriggered:
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noEndOfLine:
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pla
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// Add column
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ldy MemMap.SCREEN.CursorCol
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sta (MemMap.SCREEN.TempVideoPointer), y
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ldy MemMap.SCREEN.tempY
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// insert into screen
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sta (MemMap.SCREEN.TempVideoPointer), y
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ldy MemMap.SCREEN.tempY
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iny
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inc MemMap.SCREEN.CursorCol
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inc MemMap.SCREEN.CursorCol
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lda MemMap.SCREEN.CursorCol
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cmp #constants.COLUMN_NUM+1
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bcc.r exita
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// CursorCol > COLUMN_NUM ? new line
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jsr screenNewLine
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exita:
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ldx MemMap.SCREEN.tempX
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exit:
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ldx MemMap.SCREEN.tempX
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rts
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}
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@ -168,23 +206,37 @@ exita:
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// returned values: none
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// ——————————————————————————————————————————————————————
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print: {
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ldy #$00
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sta MemMap.SCREEN.TempStringPointer
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stx MemMap.SCREEN.TempStringPointer+1
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ldy #$00
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sta MemMap.SCREEN.TempStringPointer
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stx MemMap.SCREEN.TempStringPointer+1
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printLoop:
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lda (MemMap.SCREEN.TempStringPointer), y
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cmp #0
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beq exit
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jsr Screen.printChar
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jmp printLoop
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lda (MemMap.SCREEN.TempStringPointer), y
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cmp #0
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beq exit
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jsr Screen.printChar
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jmp printLoop
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exit:
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rts
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}
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screenNewLine: {
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lda #0
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sta MemMap.SCREEN.CursorCol
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inc MemMap.SCREEN.CursorRow
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pha
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lda #0
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sta MemMap.SCREEN.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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bne noScrollUp
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jsr Screen.scrollUp
|
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lda #1 // Yes - Scroll up
|
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sta MemMap.SCREEN.ScrollUpTriggered
|
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jmp done
|
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noScrollUp:
|
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lda #0
|
||||
sta MemMap.SCREEN.ScrollUpTriggered
|
||||
done:
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||||
inc MemMap.SCREEN.CursorRow
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pla
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||||
rts
|
||||
}
|
||||
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||||
@ -199,65 +251,55 @@ screenNewLine: {
|
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// ————————————————————————————————————————
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petToScreen: {
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// $00-$1F
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cmp #$1f
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bcs !+
|
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sec
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adc #128
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jmp convDone
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|
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cmp #$1f
|
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bcs !+
|
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sec
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adc #128
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jmp convDone
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// $20-$3F
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!:
|
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cmp #$3f
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bcs !+
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jmp convDone
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cmp #$3f
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bcs !+
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jmp convDone
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// $40-$5F
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!:
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cmp #$5f
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bcs !+
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sec
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sbc #$40
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jmp convDone
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cmp #$5f
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bcs !+
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sec
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sbc #$40
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||||
jmp convDone
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||||
// $60-$7F
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!:
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cmp #$7F
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bcs !+
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sec
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||||
sbc #32
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||||
jmp convDone
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||||
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||||
cmp #$7F
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bcs !+
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sec
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||||
sbc #32
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||||
jmp convDone
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||||
// $80-$9F
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||||
!:
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||||
cmp #$9F
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||||
bcs !+
|
||||
sec
|
||||
adc #64
|
||||
jmp convDone
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||||
cmp #$9F
|
||||
bcs !+
|
||||
sec
|
||||
adc #64
|
||||
jmp convDone
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||||
// $A0-$BF
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||||
!:
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||||
cmp #$BF
|
||||
bcs !+
|
||||
sec
|
||||
sbc #64
|
||||
jmp convDone
|
||||
|
||||
cmp #$BF
|
||||
bcs !+
|
||||
sec
|
||||
sbc #64
|
||||
jmp convDone
|
||||
// $C0-$DF
|
||||
// $E0-$FE
|
||||
!:
|
||||
cmp #$FE
|
||||
bcs !+
|
||||
sec
|
||||
sbc #128
|
||||
jmp convDone
|
||||
|
||||
cmp #$FE
|
||||
bcs !+
|
||||
sec
|
||||
sbc #128
|
||||
jmp convDone
|
||||
// $FF
|
||||
!:
|
||||
lda $5E
|
||||
|
||||
|
||||
lda $5E
|
||||
convDone:
|
||||
rts
|
||||
|
||||
rts
|
||||
}
|
||||
127
shell.asm
127
shell.asm
@ -8,7 +8,7 @@
|
||||
|
||||
.const CR = $0d
|
||||
|
||||
|
||||
clear:
|
||||
init: {
|
||||
lda #-1
|
||||
sta MemMap.SHELL.pos
|
||||
@ -16,45 +16,37 @@ init: {
|
||||
}
|
||||
|
||||
push: {
|
||||
ldy MemMap.SHELL.pos
|
||||
ldy MemMap.SHELL.pos
|
||||
iny
|
||||
cpy #127
|
||||
beq done
|
||||
sty MemMap.SHELL.pos
|
||||
sta MemMap.SHELL.buffer, y
|
||||
cpy #127
|
||||
beq.r done
|
||||
sty MemMap.SHELL.pos
|
||||
sta MemMap.SHELL.buffer, y
|
||||
done:
|
||||
rts
|
||||
}
|
||||
|
||||
clear: {
|
||||
ldy #-1
|
||||
sty MemMap.SHELL.pos
|
||||
rts
|
||||
}
|
||||
|
||||
|
||||
// WOZ MONITOR FLOW - FROM APPLE1
|
||||
wozExec: {
|
||||
ldy #-1
|
||||
lda #0
|
||||
ldy #-1
|
||||
lda #0
|
||||
tax
|
||||
|
||||
SETSTOR:
|
||||
asl
|
||||
SETMODE:
|
||||
cmp #0
|
||||
beq !+
|
||||
eor #%10000000
|
||||
SETMODE:
|
||||
cmp #0
|
||||
beq.r !+
|
||||
eor #%10000000
|
||||
!:
|
||||
sta MemMap.SHELL.MODE
|
||||
sta MemMap.SHELL.MODE
|
||||
|
||||
BLSKIP: iny
|
||||
|
||||
NEXTITEM:
|
||||
.break
|
||||
NEXTITEM:
|
||||
lda MemMap.SHELL.buffer,Y //Get character
|
||||
cmp #$0d
|
||||
bne CONT // We're done if it's CR!
|
||||
cmp #CR
|
||||
bne.r CONT // We're done if it's CR!
|
||||
rts
|
||||
CONT:
|
||||
cmp #'.'
|
||||
@ -70,8 +62,8 @@ wozExec: {
|
||||
|
||||
// Here we're trying to parse a new hex value
|
||||
|
||||
NEXTHEX:
|
||||
lda MemMap.SHELL.buffer,y // Get character for hex test
|
||||
NEXTHEX:
|
||||
lda MemMap.SHELL.buffer,y // Get character for hex test
|
||||
eor #$30 // Map digits to 0-9
|
||||
cmp #9+1 // Is it a decimal digit?
|
||||
bcc DIG // Yes!
|
||||
@ -79,27 +71,27 @@ wozExec: {
|
||||
cmp #$FA // Hex letter?
|
||||
bcc NOTHEX // No! Character not hex
|
||||
|
||||
DIG:
|
||||
DIG:
|
||||
asl
|
||||
asl // Hex digit to MSD of A
|
||||
asl
|
||||
asl
|
||||
|
||||
ldx #4 // Shift count
|
||||
HEXSHIFT: asl // Hex digit left, MSB to carry
|
||||
rol MemMap.SHELL.L // Rotate into LSD
|
||||
rol MemMap.SHELL.H // Rotate into MSD's
|
||||
dex // Done 4 shifts?
|
||||
bne HEXSHIFT // No, loop
|
||||
iny // Advance text index
|
||||
bne NEXTHEX // Always taken
|
||||
ldx #4 // Shift count
|
||||
HEXSHIFT: asl // Hex digit left, MSB to carry
|
||||
rol MemMap.SHELL.L // Rotate into LSD
|
||||
rol MemMap.SHELL.H // Rotate into MSD's
|
||||
dex // Done 4 shifts?
|
||||
bne HEXSHIFT // No, loop
|
||||
iny // Advance text index
|
||||
bne NEXTHEX // Always taken
|
||||
|
||||
NOTHEX: cpy MemMap.SHELL.YSAV //Was at least 1 hex digit given?
|
||||
NOTHEX: cpy MemMap.SHELL.YSAV //Was at least 1 hex digit given?
|
||||
bne !+ // No! Ignore all, start from scratch
|
||||
rts
|
||||
!:
|
||||
bit MemMap.SHELL.MODE //Test MODE byte
|
||||
bvc NOTSTOR // B6=0 is STOR, 1 is XAM or BLOCK XAM
|
||||
bit MemMap.SHELL.MODE //Test MODE byte
|
||||
bvc NOTSTOR // B6=0 is STOR, 1 is XAM or BLOCK XAM
|
||||
|
||||
// STOR mode, save LSD of new hex byte
|
||||
|
||||
@ -120,59 +112,59 @@ RUN: jmp (MemMap.SHELL.XAML) // Run user's program
|
||||
// We're not in Store mode
|
||||
//-------------------------------------------------------------------------
|
||||
|
||||
NOTSTOR: bmi XAMNEXT // B7 = 0 for XAM, 1 for BLOCK XAM
|
||||
NOTSTOR: bmi XAMNEXT // B7 = 0 for XAM, 1 for BLOCK XAM
|
||||
|
||||
// We're in XAM mode now
|
||||
|
||||
ldx #2 // Copy 2 bytes
|
||||
SETADR: lda MemMap.SHELL.L-1,X // Copy hex data to
|
||||
sta MemMap.SHELL.STL-1,X // 'store index'
|
||||
sta MemMap.SHELL.XAML-1,X // and to 'XAM index'
|
||||
dex // Next of 2 bytes
|
||||
bne SETADR // Loop unless X = 0
|
||||
ldx #2 // Copy 2 bytes
|
||||
SETADR: lda MemMap.SHELL.L-1,X // Copy hex data to
|
||||
sta MemMap.SHELL.STL-1,X // 'store index'
|
||||
sta MemMap.SHELL.XAML-1,X // and to 'XAM index'
|
||||
dex // Next of 2 bytes
|
||||
bne SETADR // Loop unless X = 0
|
||||
|
||||
// Print address and data from this address, fall through next BNE.
|
||||
|
||||
NXTPRNT: bne PRDATA // NE means no address to print
|
||||
lda #$8e // Print CR first
|
||||
NXTPRNT: bne PRDATA // NE means no address to print
|
||||
lda #CR // Print CR first
|
||||
cPrint()
|
||||
lda MemMap.SHELL.XAMH // Output high-order byte of address
|
||||
lda MemMap.SHELL.XAMH // Output high-order byte of address
|
||||
jsr PRBYTE
|
||||
lda MemMap.SHELL.XAML // Output low-order byte of address
|
||||
lda MemMap.SHELL.XAML // Output low-order byte of address
|
||||
jsr PRBYTE
|
||||
lda #':' // Print colon
|
||||
lda #':' // Print colon
|
||||
cPrint()
|
||||
|
||||
PRDATA: lda #' ' // Print space
|
||||
PRDATA: lda #' ' // Print space
|
||||
cPrint()
|
||||
lda (MemMap.SHELL.XAML,X) // Get data from address (X=0)
|
||||
jsr PRBYTE // Output it in hex format
|
||||
XAMNEXT: stx MemMap.SHELL.MODE // 0 -> MODE (XAM mode).
|
||||
lda MemMap.SHELL.XAML // See if there's more to print
|
||||
jsr PRBYTE // Output it in hex format
|
||||
XAMNEXT: stx MemMap.SHELL.MODE // 0 -> MODE (XAM mode).
|
||||
lda MemMap.SHELL.XAML // See if there's more to print
|
||||
cmp MemMap.SHELL.L
|
||||
lda MemMap.SHELL.XAMH
|
||||
sbc MemMap.SHELL.H
|
||||
bcs TONEXTITEM // Not less! No more data to output
|
||||
bcs TONEXTITEM // Not less! No more data to output
|
||||
|
||||
inc MemMap.SHELL.XAML // Increment 'examine index'
|
||||
bne MOD8CHK // No carry!
|
||||
bne MOD8CHK // No carry!
|
||||
inc MemMap.SHELL.XAMH
|
||||
|
||||
MOD8CHK: lda MemMap.SHELL.XAML // If address MOD 8 = 0 start new line
|
||||
MOD8CHK: lda MemMap.SHELL.XAML // If address MOD 8 = 0 start new line
|
||||
and #%00000111
|
||||
bpl NXTPRNT // Always taken.
|
||||
bpl NXTPRNT // Always taken.
|
||||
|
||||
// -------------------------------------------------------------------------
|
||||
// Subroutine to print a byte in A in hex form (destructive)
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
PRBYTE: pha // Save A for LSD
|
||||
PRBYTE: pha // Save A for LSD
|
||||
lsr
|
||||
lsr
|
||||
lsr // MSD to LSD position
|
||||
lsr // MSD to LSD position
|
||||
lsr
|
||||
jsr PRHEX // Output hex digit
|
||||
pla // Restore A
|
||||
jsr PRHEX // Output hex digit
|
||||
pla // Restore A
|
||||
|
||||
// Fall through to print hex routine
|
||||
|
||||
@ -180,12 +172,11 @@ PRBYTE: pha // Save A for LSD
|
||||
// Subroutine to print a hexadecimal digit
|
||||
// -------------------------------------------------------------------------
|
||||
|
||||
PRHEX: and #%00001111 // Mask LSD for hex print
|
||||
ora #'0' // Add "0"
|
||||
cmp #'9'+1 // Is it a decimal digit?
|
||||
bcc !+ // Yes! output it
|
||||
adc #6 // Add offset for letter A-F
|
||||
jsr Screen.petToScreen
|
||||
PRHEX: and #%00001111 // Mask LSD for hex print
|
||||
ora #'0' // Add "0"
|
||||
cmp #'9'+1 // Is it a decimal digit?
|
||||
bcc !+ // Yes! output it
|
||||
adc #6 // Add offset for letter A-F
|
||||
!:
|
||||
cPrint()
|
||||
rts
|
||||
|
||||
Loading…
Reference in New Issue
Block a user