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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@ -95,6 +95,8 @@ Start:
lda #ShellCommand lda #ShellCommand
jsr SendByte jsr SendByte
jsr DumpOutput jsr DumpOutput
lda #ResetCommand
jsr SendByte
pla pla
sta LastChar sta LastChar
rts rts

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

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