From 285d23af5563ccfa73511db8fc124fa8abe65355 Mon Sep 17 00:00:00 2001
From: Terence Boldt <terence@boldt.ca>
Date: Tue, 28 Dec 2021 16:23:27 -0500
Subject: [PATCH] Initial mostly working RPI command

---
 Apple2/RPi.Command.asm                    |  14 +-
 Apple2/RPi.Command.bin                    | Bin 227 -> 229 bytes
 Apple2/RPi.Command.lst                    | 162 +++++++++++-----------
 Apple2/assemble.sh                        |   4 +
 RaspberryPi/Apple2-IO-RPi.hdv             | Bin 33553920 -> 33553920 bytes
 RaspberryPi/apple2driver/handlers/exec.go |   1 +
 6 files changed, 95 insertions(+), 86 deletions(-)

diff --git a/Apple2/RPi.Command.asm b/Apple2/RPi.Command.asm
index e69d9bf..79d4afe 100644
--- a/Apple2/RPi.Command.asm
+++ b/Apple2/RPi.Command.asm
@@ -7,7 +7,7 @@ XTRNADDR   =  $BE50    ;Ext cmd implementation addr.
 XLEN       =  $BE52    ;length of command string-1.
 XCNUM      =  $BE53    ;CI cmd no. (ext cmd - 0).
 PBITS      =  $BE54    ;Command parameter bits.
-XRETURN    =  $BE9E    ;Known RTS instruction.
+XRETURN    =  $FF58    ;Known RTS instruction.
 InputByte = $c0fe
 OutputByte = $c0fd
 InputFlags = $c0fb
@@ -53,10 +53,13 @@ Wait = $fca8
             BNE  NXTCHR      ;No, read next one.
  ;
             LDA  #CMDLEN-1   ;Our cmd! Put cmd length-1
+            ;lda #$8d
+            ;sta $02ff
+            ;lda #$fe
             STA  XLEN        ; in CI global XLEN.
-            LDA  #>XRETURN   ;Point XTRNADDR to a known
+            LDA  #<XRETURN   ;Point XTRNADDR to a known
             STA  XTRNADDR    ; RTS since we'll handle
-            LDA  #<XRETURN   ; at the time we intercept
+            LDA  #>XRETURN   ; at the time we intercept
 
             STA  XTRNADDR+1  ; our command.
             LDA  #0          ;Mark the cmd number as
@@ -105,7 +108,8 @@ skipOutput:
  clc
  bcc DumpOutput
 endOutput:
- rts
+ clc
+ jmp (NXTCMD) 
 
 HelpCommand:
  .byte "a2help",$00
@@ -154,8 +158,6 @@ finishRead:
  bcc finishRead
  pla
  clc ;success
-end:
- clc
  rts
 
 
diff --git a/Apple2/RPi.Command.bin b/Apple2/RPi.Command.bin
index 1cb3280e2313091b20d624ba5369289676abde0e..af089fa25b92f3d7911e03ca2441394cccfaa2c4 100644
GIT binary patch
delta 158
zcmaFN_>{4JE&IOS$INRv_VqqtUMb$ozHcRSFUP)wMGSixm^c;gK489}{sKsRT*=fM
zv~OiZZ@|8l|9b=Xtz_s8-q#zluQznx%3g)He<dccSmZor))6?cl2u_Q^8)6b3`{3`
zKX7Q)19>Na+8Kbf!gl5j>?avMNCGwJFdPtgzm{QQJv+}#kT!`4_auM@Ozih%OZfER
HB?AKhC<a9;

delta 156
zcmaFL_?WSNE&IOShs<j^_VqquUMb$ozHcRSFUP)wMGSixm^c;g-ebO?{^9}ig^w$l
zdV}_@+}9hhZ{@t+z<nzjdV}}%hV1JN-M6w=;q70E2`m;l51DlY4y<HVn8v(-c_#zY
z$=(kfn)N{537~ccAg!>4c?0`Nh7XcJ4LS@51m3S@m{`xwISr&uV#2+IiIaTUB@#Y;
Ic*(#30GumCCjbBd

diff --git a/Apple2/RPi.Command.lst b/Apple2/RPi.Command.lst
index 0857ef0..758c978 100644
--- a/Apple2/RPi.Command.lst
+++ b/Apple2/RPi.Command.lst
@@ -11,7 +11,7 @@ Current file: RPi.Command.asm
 000300  1               XLEN       =  $BE52    ;length of command string-1.
 000300  1               XCNUM      =  $BE53    ;CI cmd no. (ext cmd - 0).
 000300  1               PBITS      =  $BE54    ;Command parameter bits.
-000300  1               XRETURN    =  $BE9E    ;Known RTS instruction.
+000300  1               XRETURN    =  $FF58    ;Known RTS instruction.
 000300  1               InputByte = $c0fe
 000300  1               OutputByte = $c0fd
 000300  1               InputFlags = $c0fb
@@ -37,9 +37,9 @@ Current file: RPi.Command.asm
 000300  1                ; DISCONNECT ANY PREVIOUSLY CONNECTED COMMAND.
 000300  1                ;
 000300  1  AD 07 BE                 LDA  EXTRNCMD+1
-000303  1  8D E1 03                 STA  NXTCMD
+000303  1  8D E3 03                 STA  NXTCMD
 000306  1  AD 08 BE                 LDA  EXTRNCMD+2
-000309  1  8D E2 03                 STA  NXTCMD+1
+000309  1  8D E4 03                 STA  NXTCMD+1
 00030C  1                ;
 00030C  1  A9 17                    LDA  #<RPI      ;Install the address of our
 00030E  1  8D 07 BE                 STA  EXTRNCMD+1  ; command handler in the
@@ -50,17 +50,20 @@ Current file: RPi.Command.asm
 000317  1  A2 00         RPI:       LDX  #0          ;Check for our command.
 000319  1  BD 00 02      NXTCHR:     LDA  INBUF,X     ;Get first character.
 00031C  1  09 20                    ora  #$20        ;Make it lower case
-00031E  1  DD DE 03                 CMP  CMD,X       ;Does it match?
+00031E  1  DD E0 03                 CMP  CMD,X       ;Does it match?
 000321  1  D0 27                    BNE  NOTOURS     ;No, back to CI.
 000323  1  E8                       INX              ;Next character
 000324  1  E0 03                    CPX  #CMDLEN     ;All characters yet?
 000326  1  D0 F1                    BNE  NXTCHR      ;No, read next one.
 000328  1                ;
 000328  1  A9 02                    LDA  #CMDLEN-1   ;Our cmd! Put cmd length-1
+00032A  1                           ;lda #$8d
+00032A  1                           ;sta $02ff
+00032A  1                           ;lda #$fe
 00032A  1  8D 52 BE                 STA  XLEN        ; in CI global XLEN.
-00032D  1  A9 BE                    LDA  #>XRETURN   ;Point XTRNADDR to a known
+00032D  1  A9 58                    LDA  #<XRETURN   ;Point XTRNADDR to a known
 00032F  1  8D 50 BE                 STA  XTRNADDR    ; RTS since we'll handle
-000332  1  A9 9E                    LDA  #<XRETURN   ; at the time we intercept
+000332  1  A9 FF                    LDA  #>XRETURN   ; at the time we intercept
 000334  1               
 000334  1  8D 51 BE                 STA  XTRNADDR+1  ; our command.
 000337  1  A9 00                    LDA  #0          ;Mark the cmd number as
@@ -73,27 +76,27 @@ Current file: RPi.Command.asm
 000348  1  90 04                    bcc SendCommand
 00034A  1                 ;
 00034A  1  38            NOTOURS:    SEC              ; ALWAYS SET CARRY IF NOT YOUR
-00034B  1  6C E1 03                 JMP  (NXTCMD)    ; CMD AND LET NEXT COMMAND TRY
+00034B  1  6C E3 03                 JMP  (NXTCMD)    ; CMD AND LET NEXT COMMAND TRY
 00034E  1                ;                           ; TO CLAIM IT.
 00034E  1               
 00034E  1               SendCommand:
 00034E  1  2C 10 C0      bit ClearKeyboard
 000351  1  A9 05         lda #$05 ;send command 5 = exec
-000353  1  20 96 03      jsr SendByte
+000353  1  20 99 03      jsr SendByte
 000356  1  A0 03         ldy #$03 ;skip over "RPI"
 000358  1               getInput:
 000358  1  B9 00 02      lda $0200,y
 00035B  1  C9 8D         cmp #$8d
 00035D  1  F0 08         beq sendNullTerminator
 00035F  1  29 7F         and #$7f
-000361  1  20 96 03      jsr SendByte
+000361  1  20 99 03      jsr SendByte
 000364  1  C8            iny
 000365  1  D0 F1         bne getInput
 000367  1               sendNullTerminator:
 000367  1  A9 00         lda #$00
-000369  1  20 96 03      jsr SendByte
+000369  1  20 99 03      jsr SendByte
 00036C  1               DumpOutput:
-00036C  1  20 B4 03      jsr GetByte
+00036C  1  20 B7 03      jsr GetByte
 00036F  1  B0 07         bcs skipOutput
 000371  1  C9 00         cmp #$00
 000373  1  F0 19         beq endOutput
@@ -104,76 +107,75 @@ Current file: RPi.Command.asm
 00037D  1  AD 00 C0      lda Keyboard ;send keypress to RPi
 000380  1  20 ED FD      jsr PrintChar
 000383  1  29 7F         and #$7f
-000385  1  20 96 03      jsr SendByte
+000385  1  20 99 03      jsr SendByte
 000388  1  2C 10 C0      bit ClearKeyboard
 00038B  1  18            clc
 00038C  1  90 DE         bcc DumpOutput
 00038E  1               endOutput:
-00038E  1  60            rts
-00038F  1               
-00038F  1               HelpCommand:
-00038F  1  61 32 68 65   .byte "a2help",$00
-000393  1  6C 70 00     
-000396  1               
-000396  1               SendByte:
-000396  1  48            pha
-000397  1               waitWrite:
-000397  1  AD FB C0      lda InputFlags
-00039A  1  2A            rol
-00039B  1  2A            rol
-00039C  1  B0 F9         bcs waitWrite
-00039E  1  68            pla
-00039F  1  8D FD C0      sta OutputByte
-0003A2  1  A9 1E         lda #$1e ; set bit 0 low to indicate write started
-0003A4  1  8D F7 C0      sta OutputFlags
-0003A7  1               finishWrite:
-0003A7  1  AD FB C0      lda InputFlags
-0003AA  1  2A            rol
-0003AB  1  2A            rol
-0003AC  1  90 F9         bcc finishWrite
-0003AE  1  A9 1F         lda #$1f
-0003B0  1  8D F7 C0      sta OutputFlags
-0003B3  1  60            rts
-0003B4  1               
-0003B4  1               GetByte:
-0003B4  1  A9 1D         lda #$1d ;set read flag low
-0003B6  1  8D F7 C0      sta OutputFlags
-0003B9  1               waitRead:
-0003B9  1  AD FB C0      lda InputFlags
-0003BC  1  2A            rol
-0003BD  1  90 0C         bcc readByte
-0003BF  1  2C 00 C0      bit Keyboard ;keypress will abort waiting to read
-0003C2  1  10 F5         bpl waitRead
-0003C4  1  A9 1F         lda #$1f ;set all flags high and exit
-0003C6  1  8D F7 C0      sta OutputFlags
-0003C9  1  38            sec ;failure
-0003CA  1  60            rts
-0003CB  1               readByte:
-0003CB  1  AD FE C0      lda InputByte
-0003CE  1  48            pha
-0003CF  1  A9 1F         lda #$1f ;set all flags high
-0003D1  1  8D F7 C0      sta OutputFlags
-0003D4  1               finishRead:
-0003D4  1  AD FB C0      lda InputFlags
-0003D7  1  2A            rol
-0003D8  1  90 FA         bcc finishRead
-0003DA  1  68            pla
-0003DB  1  18            clc ;success
-0003DC  1               end:
-0003DC  1  18            clc
-0003DD  1  60            rts
-0003DE  1               
-0003DE  1               
-0003DE  1               ;macro for string with high-bit set
-0003DE  1               .macro aschi str
-0003DE  1               .repeat .strlen (str), c
-0003DE  1               .byte .strat (str, c) | $80
-0003DE  1               .endrep
-0003DE  1               .endmacro
-0003DE  1               
-0003DE  1  F2 F0 E9     CMD:   aschi   "rpi"
-0003E1  1                CMDLEN     =  3       ;Our command length
-0003E1  1                ;
-0003E1  1  00 00         NXTCMD:    .byte    0,0           ; STORE THE NEXT EXT CMD'S
-0003E3  1                                            ; ADDRESS HERE.
-0003E3  1               
+00038E  1  18            clc
+00038F  1  6C E3 03      jmp (NXTCMD)
+000392  1               
+000392  1               HelpCommand:
+000392  1  61 32 68 65   .byte "a2help",$00
+000396  1  6C 70 00     
+000399  1               
+000399  1               SendByte:
+000399  1  48            pha
+00039A  1               waitWrite:
+00039A  1  AD FB C0      lda InputFlags
+00039D  1  2A            rol
+00039E  1  2A            rol
+00039F  1  B0 F9         bcs waitWrite
+0003A1  1  68            pla
+0003A2  1  8D FD C0      sta OutputByte
+0003A5  1  A9 1E         lda #$1e ; set bit 0 low to indicate write started
+0003A7  1  8D F7 C0      sta OutputFlags
+0003AA  1               finishWrite:
+0003AA  1  AD FB C0      lda InputFlags
+0003AD  1  2A            rol
+0003AE  1  2A            rol
+0003AF  1  90 F9         bcc finishWrite
+0003B1  1  A9 1F         lda #$1f
+0003B3  1  8D F7 C0      sta OutputFlags
+0003B6  1  60            rts
+0003B7  1               
+0003B7  1               GetByte:
+0003B7  1  A9 1D         lda #$1d ;set read flag low
+0003B9  1  8D F7 C0      sta OutputFlags
+0003BC  1               waitRead:
+0003BC  1  AD FB C0      lda InputFlags
+0003BF  1  2A            rol
+0003C0  1  90 0C         bcc readByte
+0003C2  1  2C 00 C0      bit Keyboard ;keypress will abort waiting to read
+0003C5  1  10 F5         bpl waitRead
+0003C7  1  A9 1F         lda #$1f ;set all flags high and exit
+0003C9  1  8D F7 C0      sta OutputFlags
+0003CC  1  38            sec ;failure
+0003CD  1  60            rts
+0003CE  1               readByte:
+0003CE  1  AD FE C0      lda InputByte
+0003D1  1  48            pha
+0003D2  1  A9 1F         lda #$1f ;set all flags high
+0003D4  1  8D F7 C0      sta OutputFlags
+0003D7  1               finishRead:
+0003D7  1  AD FB C0      lda InputFlags
+0003DA  1  2A            rol
+0003DB  1  90 FA         bcc finishRead
+0003DD  1  68            pla
+0003DE  1  18            clc ;success
+0003DF  1  60            rts
+0003E0  1               
+0003E0  1               
+0003E0  1               ;macro for string with high-bit set
+0003E0  1               .macro aschi str
+0003E0  1               .repeat .strlen (str), c
+0003E0  1               .byte .strat (str, c) | $80
+0003E0  1               .endrep
+0003E0  1               .endmacro
+0003E0  1               
+0003E0  1  F2 F0 E9     CMD:   aschi   "rpi"
+0003E3  1                CMDLEN     =  3       ;Our command length
+0003E3  1                ;
+0003E3  1  00 00         NXTCMD:    .byte    0,0           ; STORE THE NEXT EXT CMD'S
+0003E5  1                                            ; ADDRESS HERE.
+0003E5  1               
diff --git a/Apple2/assemble.sh b/Apple2/assemble.sh
index 41c1f19..296c5e0 100755
--- a/Apple2/assemble.sh
+++ b/Apple2/assemble.sh
@@ -46,6 +46,9 @@ DriveFirmware.bin CommandFirmware.bin FileAccessFirmware.bin MenuFirmware.bin \
 ca65 Shell.asm -o Shell.o --listing Shell.lst || exit 1
 ld65 Shell.o -o Shell.bin -C ../.cicd/none.cfg  || exit 1
 
+ca65 RPi.Command.asm -o RPi.Command.o --listing RPi.Command.lst || exit 1
+ld65 RPi.Command.o -o RPi.Command.bin -C ../.cicd/none.cfg  || exit 1
+
 rm ./*.o
 rm DriveFirmware.bin
 rm MenuFirmware.bin
@@ -54,4 +57,5 @@ rm FileAccessFirmware.bin
 
 ProDOS-Utilities -d ../RaspberryPi/Apple2-IO-RPi.hdv -c put -i AT28C64B.bin -p /APPLE2.IO.RPI/AT28C64B.BIN || exit 1
 ProDOS-Utilities -d ../RaspberryPi/Apple2-IO-RPi.hdv -c put -i Shell.bin -p /APPLE2.IO.RPI/SHELL || exit 1
+ProDOS-Utilities -d ../RaspberryPi/Apple2-IO-RPi.hdv -c put -i RPi.Command.bin -p /APPLE2.IO.RPI/RPI.COMMAND -a 0x0300 || exit 1
 ProDOS-Utilities -d ../RaspberryPi/Apple2-IO-RPi.hdv -c ls
diff --git a/RaspberryPi/Apple2-IO-RPi.hdv b/RaspberryPi/Apple2-IO-RPi.hdv
index 7b4dd957c1e7d661b0b86e5649961bd2cb0cd64e..570e19d14eadb52a7305f70ab8f9093dcee67b57 100755
GIT binary patch
delta 2078
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F{sDQ%#V`N>

diff --git a/RaspberryPi/apple2driver/handlers/exec.go b/RaspberryPi/apple2driver/handlers/exec.go
index 990f26f..b5839eb 100644
--- a/RaspberryPi/apple2driver/handlers/exec.go
+++ b/RaspberryPi/apple2driver/handlers/exec.go
@@ -31,6 +31,7 @@ func ExecCommand() {
 	if forceLowercase {
 		linuxCommand = strings.ToLower(linuxCommand)
 	}
+	linuxCommand = strings.Trim(linuxCommand, " ")
 	fmt.Printf("Command to run: %s\n", linuxCommand)
 	if strings.HasPrefix(linuxCommand, "cd ") {
 		workingDirectory = strings.Replace(linuxCommand, "cd ", "", 1)