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Apple2-IO-RPi
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Fixes #57 reset state on shell exit

This commit is contained in:
Terence Boldt 2022-01-10 19:28:41 -05:00
parent 8b654cbc4e
commit d900120907
5 changed files with 171 additions and 168 deletions
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2
Apple2/Shell.asm
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@ -95,6 +95,8 @@ Start:
lda #ShellCommand
jsr SendByte
jsr DumpOutput
lda #ResetCommand
jsr SendByte
pla
sta LastChar
rts

BIN
Apple2/Shell.bin
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Binary file not shown.

334
Apple2/Shell.lst
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@ -95,170 +95,172 @@ Current file: Shell.asm
002038 1 48 pha
002039 1 2C 10 C0 bit ClearKeyboard
00203C 1 A9 00 lda #ResetCommand
00203E 1 20 D2 20 jsr SendByte
00203E 1 20 D7 20 jsr SendByte
002041 1 A9 09 lda #ShellCommand
002043 1 20 D2 20 jsr SendByte
002046 1 20 4D 20 jsr DumpOutput
002049 1 68 pla
00204A 1 85 06 sta LastChar
00204C 1 60 rts
00204D 1
00204D 1 DumpOutput:
00204D 1 20 F0 20 jsr GetByte
002050 1 B0 2A bcs checkInput
002052 1 C9 00 cmp #$00
002054 1 F0 39 beq endOutput
002056 1 48 pha
002057 1 20 4F 21 jsr ClearCursor
00205A 1 68 pla
00205B 1 C9 48 cmp #'H'
00205D 1 F0 3A beq setColumn
00205F 1 C9 56 cmp #'V'
002061 1 F0 44 beq setRow
002063 1 C9 43 cmp #'C'
002065 1 F0 29 beq clearScreen
002067 1 C9 54 cmp #'T'
002069 1 F0 4A beq setTop
00206B 1 C9 42 cmp #'B'
00206D 1 F0 4E beq setBottom
00206F 1 C9 55 cmp #'U'
002071 1 F0 52 beq moveUp
002073 1 20 ED FD jsr PrintChar
002076 1 20 1E 21 jsr SetCursor
002079 1 4C 4D 20 jmp DumpOutput
00207C 1 checkInput:
00207C 1 2C 00 C0 bit Keyboard ;check for keypress
00207F 1 10 CC bpl DumpOutput ;keep dumping output if no keypress
002081 1 AD 00 C0 lda Keyboard ;send keypress to RPi
002084 1 29 7F and #$7f
002086 1 20 D2 20 jsr SendByte
002089 1 2C 10 C0 bit ClearKeyboard
00208C 1 4C 4D 20 jmp DumpOutput
00208F 1 endOutput:
00208F 1 60 rts
002090 1 clearScreen:
002090 1 20 58 FC jsr Home
002093 1 20 1E 21 jsr SetCursor
002096 1 4C 4D 20 jmp DumpOutput
002099 1 setColumn:
002099 1 20 F0 20 jsr GetByte
00209C 1 85 24 sta htab
00209E 1 8D 7B 05 sta htab80
0020A1 1 20 1E 21 jsr SetCursor
0020A4 1 4C 4D 20 jmp DumpOutput
0020A7 1 setRow:
0020A7 1 20 F0 20 jsr GetByte
0020AA 1 85 25 sta vtab
0020AC 1 20 C1 FB jsr BasCalc
0020AF 1 20 1E 21 jsr SetCursor
0020B2 1 4C 4D 20 jmp DumpOutput
0020B5 1 setTop:
0020B5 1 20 F0 20 jsr GetByte
0020B8 1 85 22 sta $22
0020BA 1 4C 4D 20 jmp DumpOutput
0020BD 1 setBottom:
0020BD 1 20 F0 20 jsr GetByte
0020C0 1 85 23 sta $23
0020C2 1 4C 4D 20 jmp DumpOutput
0020C5 1 moveUp:
0020C5 1 C6 25 dec vtab
0020C7 1 A5 25 lda vtab
0020C9 1 20 C1 FB jsr BasCalc
0020CC 1 20 1E 21 jsr SetCursor
0020CF 1 4C 4D 20 jmp DumpOutput
0020D2 1
0020D2 1 SendByte:
0020D2 1 48 pha
0020D3 1 waitWrite:
0020D3 1 BD 8B C0 lda InputFlags,x
0020D6 1 2A rol
0020D7 1 2A rol
0020D8 1 B0 F9 bcs waitWrite
0020DA 1 68 pla
0020DB 1 9D 8D C0 sta OutputByte,x
0020DE 1 A9 1E lda #$1e ; set bit 0 low to indicate write started
0020E0 1 9D 87 C0 sta OutputFlags,x
0020E3 1 finishWrite:
0020E3 1 BD 8B C0 lda InputFlags,x
0020E6 1 2A rol
0020E7 1 2A rol
0020E8 1 90 F9 bcc finishWrite
0020EA 1 A9 1F lda #$1f
0020EC 1 9D 87 C0 sta OutputFlags,x
0020EF 1 60 rts
0020F0 1
0020F0 1 GetByte:
0020F0 1 2C 00 C0 bit Keyboard ; skip byte read if key pressed
0020F3 1 90 10 bcc keyPressed
0020F5 1 A9 1D lda #$1d ;set read flag low
0020F7 1 9D 87 C0 sta OutputFlags,x
0020FA 1 waitRead:
0020FA 1 BD 8B C0 lda InputFlags,x
0020FD 1 2A rol
0020FE 1 90 0C bcc readByte
002100 1 2C 00 C0 bit Keyboard ;keypress will abort waiting to read
002103 1 10 F5 bpl waitRead
002105 1 keyPressed:
002105 1 A9 1F lda #$1f ;set all flags high and exit
002107 1 9D 87 C0 sta OutputFlags,x
00210A 1 38 sec ;failure
00210B 1 60 rts
00210C 1 readByte:
00210C 1 BD 8E C0 lda InputByte,x
00210F 1 48 pha
002110 1 A9 1F lda #$1f ;set all flags high
002112 1 9D 87 C0 sta OutputFlags,x
002115 1 finishRead:
002115 1 BD 8B C0 lda InputFlags,x
002118 1 2A rol
002119 1 90 FA bcc finishRead
00211B 1 68 pla
00211C 1 18 clc ;success
00211D 1 end:
00211D 1 60 rts
00211E 1
00211E 1 SetCursor:
00211E 1 AD 7B 05 lda htab80 ;get horizontal location / 2
002121 1 4A lsr
002122 1 A8 tay
002123 1 AD 55 C0 lda TextPage2
002126 1 90 03 bcc setChar
002128 1 AD 54 C0 lda TextPage1
00212B 1 setChar:
00212B 1 B1 28 lda (BasL),y
00212D 1 85 06 sta LastChar ; save so ClearCursor will pick it up
00212F 1 C9 E0 cmp #$e0
002131 1 10 0C bpl lowerCase
002133 1 C9 C0 cmp #$c0
002135 1 10 0D bpl upperCase
002137 1 C9 A0 cmp #$a0
002139 1 10 04 bpl symbol
00213B 1 C9 80 cmp #$80
00213D 1 10 0A bpl noop
00213F 1 symbol:
00213F 1 lowerCase:
00213F 1 invert:
00213F 1 49 80 eor #$80
002141 1 4C 49 21 jmp storeChar
002144 1 upperCase:
002144 1 29 1F and #$1f
002146 1 4C 49 21 jmp storeChar
002149 1 noop:
002149 1 storeChar:
002149 1 91 28 sta (BasL),y
00214B 1 AD 54 C0 lda TextPage1
00214E 1 60 rts
00214F 1
00214F 1 ClearCursor:
00214F 1 AD 7B 05 lda htab80 ;get horizontal location / 2
002152 1 4A lsr
002153 1 A8 tay
002154 1 AD 55 C0 lda TextPage2
002157 1 90 03 bcc restoreChar
002159 1 AD 54 C0 lda TextPage1
00215C 1 restoreChar:
00215C 1 A5 06 lda LastChar
00215E 1 91 28 sta (BasL),y
002160 1 AD 54 C0 lda TextPage1
002163 1 60 rts
002163 1
002043 1 20 D7 20 jsr SendByte
002046 1 20 52 20 jsr DumpOutput
002049 1 A9 00 lda #ResetCommand
00204B 1 20 D7 20 jsr SendByte
00204E 1 68 pla
00204F 1 85 06 sta LastChar
002051 1 60 rts
002052 1
002052 1 DumpOutput:
002052 1 20 F5 20 jsr GetByte
002055 1 B0 2A bcs checkInput
002057 1 C9 00 cmp #$00
002059 1 F0 39 beq endOutput
00205B 1 48 pha
00205C 1 20 54 21 jsr ClearCursor
00205F 1 68 pla
002060 1 C9 48 cmp #'H'
002062 1 F0 3A beq setColumn
002064 1 C9 56 cmp #'V'
002066 1 F0 44 beq setRow
002068 1 C9 43 cmp #'C'
00206A 1 F0 29 beq clearScreen
00206C 1 C9 54 cmp #'T'
00206E 1 F0 4A beq setTop
002070 1 C9 42 cmp #'B'
002072 1 F0 4E beq setBottom
002074 1 C9 55 cmp #'U'
002076 1 F0 52 beq moveUp
002078 1 20 ED FD jsr PrintChar
00207B 1 20 23 21 jsr SetCursor
00207E 1 4C 52 20 jmp DumpOutput
002081 1 checkInput:
002081 1 2C 00 C0 bit Keyboard ;check for keypress
002084 1 10 CC bpl DumpOutput ;keep dumping output if no keypress
002086 1 AD 00 C0 lda Keyboard ;send keypress to RPi
002089 1 29 7F and #$7f
00208B 1 20 D7 20 jsr SendByte
00208E 1 2C 10 C0 bit ClearKeyboard
002091 1 4C 52 20 jmp DumpOutput
002094 1 endOutput:
002094 1 60 rts
002095 1 clearScreen:
002095 1 20 58 FC jsr Home
002098 1 20 23 21 jsr SetCursor
00209B 1 4C 52 20 jmp DumpOutput
00209E 1 setColumn:
00209E 1 20 F5 20 jsr GetByte
0020A1 1 85 24 sta htab
0020A3 1 8D 7B 05 sta htab80
0020A6 1 20 23 21 jsr SetCursor
0020A9 1 4C 52 20 jmp DumpOutput
0020AC 1 setRow:
0020AC 1 20 F5 20 jsr GetByte
0020AF 1 85 25 sta vtab
0020B1 1 20 C1 FB jsr BasCalc
0020B4 1 20 23 21 jsr SetCursor
0020B7 1 4C 52 20 jmp DumpOutput
0020BA 1 setTop:
0020BA 1 20 F5 20 jsr GetByte
0020BD 1 85 22 sta $22
0020BF 1 4C 52 20 jmp DumpOutput
0020C2 1 setBottom:
0020C2 1 20 F5 20 jsr GetByte
0020C5 1 85 23 sta $23
0020C7 1 4C 52 20 jmp DumpOutput
0020CA 1 moveUp:
0020CA 1 C6 25 dec vtab
0020CC 1 A5 25 lda vtab
0020CE 1 20 C1 FB jsr BasCalc
0020D1 1 20 23 21 jsr SetCursor
0020D4 1 4C 52 20 jmp DumpOutput
0020D7 1
0020D7 1 SendByte:
0020D7 1 48 pha
0020D8 1 waitWrite:
0020D8 1 BD 8B C0 lda InputFlags,x
0020DB 1 2A rol
0020DC 1 2A rol
0020DD 1 B0 F9 bcs waitWrite
0020DF 1 68 pla
0020E0 1 9D 8D C0 sta OutputByte,x
0020E3 1 A9 1E lda #$1e ; set bit 0 low to indicate write started
0020E5 1 9D 87 C0 sta OutputFlags,x
0020E8 1 finishWrite:
0020E8 1 BD 8B C0 lda InputFlags,x
0020EB 1 2A rol
0020EC 1 2A rol
0020ED 1 90 F9 bcc finishWrite
0020EF 1 A9 1F lda #$1f
0020F1 1 9D 87 C0 sta OutputFlags,x
0020F4 1 60 rts
0020F5 1
0020F5 1 GetByte:
0020F5 1 2C 00 C0 bit Keyboard ; skip byte read if key pressed
0020F8 1 90 10 bcc keyPressed
0020FA 1 A9 1D lda #$1d ;set read flag low
0020FC 1 9D 87 C0 sta OutputFlags,x
0020FF 1 waitRead:
0020FF 1 BD 8B C0 lda InputFlags,x
002102 1 2A rol
002103 1 90 0C bcc readByte
002105 1 2C 00 C0 bit Keyboard ;keypress will abort waiting to read
002108 1 10 F5 bpl waitRead
00210A 1 keyPressed:
00210A 1 A9 1F lda #$1f ;set all flags high and exit
00210C 1 9D 87 C0 sta OutputFlags,x
00210F 1 38 sec ;failure
002110 1 60 rts
002111 1 readByte:
002111 1 BD 8E C0 lda InputByte,x
002114 1 48 pha
002115 1 A9 1F lda #$1f ;set all flags high
002117 1 9D 87 C0 sta OutputFlags,x
00211A 1 finishRead:
00211A 1 BD 8B C0 lda InputFlags,x
00211D 1 2A rol
00211E 1 90 FA bcc finishRead
002120 1 68 pla
002121 1 18 clc ;success
002122 1 end:
002122 1 60 rts
002123 1
002123 1 SetCursor:
002123 1 AD 7B 05 lda htab80 ;get horizontal location / 2
002126 1 4A lsr
002127 1 A8 tay
002128 1 AD 55 C0 lda TextPage2
00212B 1 90 03 bcc setChar
00212D 1 AD 54 C0 lda TextPage1
002130 1 setChar:
002130 1 B1 28 lda (BasL),y
002132 1 85 06 sta LastChar ; save so ClearCursor will pick it up
002134 1 C9 E0 cmp #$e0
002136 1 10 0C bpl lowerCase
002138 1 C9 C0 cmp #$c0
00213A 1 10 0D bpl upperCase
00213C 1 C9 A0 cmp #$a0
00213E 1 10 04 bpl symbol
002140 1 C9 80 cmp #$80
002142 1 10 0A bpl noop
002144 1 symbol:
002144 1 lowerCase:
002144 1 invert:
002144 1 49 80 eor #$80
002146 1 4C 4E 21 jmp storeChar
002149 1 upperCase:
002149 1 29 1F and #$1f
00214B 1 4C 4E 21 jmp storeChar
00214E 1 noop:
00214E 1 storeChar:
00214E 1 91 28 sta (BasL),y
002150 1 AD 54 C0 lda TextPage1
002153 1 60 rts
002154 1
002154 1 ClearCursor:
002154 1 AD 7B 05 lda htab80 ;get horizontal location / 2
002157 1 4A lsr
002158 1 A8 tay
002159 1 AD 55 C0 lda TextPage2
00215C 1 90 03 bcc restoreChar
00215E 1 AD 54 C0 lda TextPage1
002161 1 restoreChar:
002161 1 A5 06 lda LastChar
002163 1 91 28 sta (BasL),y
002165 1 AD 54 C0 lda TextPage1
002168 1 60 rts
002168 1

BIN
RaspberryPi/Apple2-IO-RPi.hdv
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Binary file not shown.

3
RaspberryPi/apple2driver/handlers/shell.go
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@ -75,8 +75,7 @@ func ptyOut(stdout io.ReadCloser, outputComplete chan bool, userCancelled chan b
outputComplete <- true
fmt.Printf("stdout closed\n")
return
}
if n > 0 {
} else if n > 0 {
b := bb[0]
comm.SendCharacter(b)
}