Trimmed down hex0 and improved its performance
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0805284391
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cb2bc1309f
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@ -22,6 +22,7 @@ Added program to search for unusual characters that are not human detectable
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** Changed
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Expanded stage0 web IDE to include the PC and instruction counter
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Performance tuned hex1 to reduce both size and instruction count
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Performance tuned hex0 to reduce both size and instruction count
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** Fixed
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Fixed behavior of R@ thanks to reepca
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@ -29,6 +30,7 @@ Updated changed checksums for stage2 FORTH
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Corrected behavior when using the web IDE and attempting to set registers that don't exist
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Fixed regression in hex.c caused by refactoring
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Fixed output of large negative numbers in hex
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Updated checksums to reflect changed made in performance tuning
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** Removed
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Removed stage1_assembler-0's need for Memory and reduced size of program while at it
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@ -60,7 +60,7 @@ or
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If you fail to specificy --tape_01 and/or --tape_02, this will produce tape_01 with the resulting binary and tape_02 with the source code input
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(this is really important for bootstrapping a text editor)
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stage1_assembler-0 should have the sha256sum of 85e5c06ac07f2b97d01dfb5454f5a698b3ec6c21fe53bf3fa57b386aac7b9601
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stage1_assembler-0 should have the sha256sum of 3ea7fed1429400c1d6fc5b85180c4114755dfb1e6b88d69e7ecc465a40523bc8
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* Step 2b Lets make a Line text editor
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Now I don't know about you but I suck at not making mistakes and having to fix a whole line instead of an entire file is a hell of an improvement.
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@ -20,31 +20,32 @@
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# ;; R15 is storing our nybble
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# ;; Prep TAPE_01
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2D201100 # LOADUI R0 0x1100
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2D201100 # LOADUI R0 0x1100
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42100000 # FOPEN_READ
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# ;; Prep TAPE_02
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2D201101 # LOADUI R0 0x1101
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42100001 # FOPEN_WRITE
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2D211100 # LOADUI R1 0x1100 ; Read from tape_01
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# ;; Main program loop
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# ;; Halts when done
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#:loop 14
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2D211100 # LOADUI R1 0x1100 ; Read from tape_01
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# :loop 18
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42100100 # FGETC ; Read a Char
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# ;; Check for EOF
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2CC000b8 # JUMP.NP R0 @finish
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3C000034 # JUMP @hex ; Convert it
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2CC00098 # JUMP.NP R0 @finish
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3C000038 # JUMP @hex ; Convert it
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# :loop_1 24
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2CC0fff0 # JUMP.NP R0 @loop ; Don't use nonhex chars
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2CC0fff4 # JUMP.NP R0 @loop ; Don't use nonhex chars
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2C9B0010 # JUMP.Z R11 @loop_2 ; Jump if toggled
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# ;; Process first byte of pair
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B0F0000f # ANDI R15 R0 0xF ; Store First nibble
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0D00002B # FALSE R11 ; Flip the toggle
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3C00ffe0 # JUMP @loop
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3C00ffe4 # JUMP @loop
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# :loop_2 38
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2D5F0004 # SL0I R15 4 ; Shift our first nibble
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@ -53,65 +54,55 @@ B000000f # ANDI R0 R0 0xF ; Mask out top
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2D1B0001 # LOADI R11 1 ; Flip the toggle
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2D211101 # LOADUI R1 0x1101 ; Write the combined byte
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42100200 # FPUTC ; To TAPE_02
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2D211100 # LOADUI R1 0x1100 ; Read from tape_01
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3C00ffc4 # JUMP @loop ; Try to get more bytes
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# ;; Hex function
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# ;; Converts Ascii chars to their hex values
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# ;; Or -1 if not a hex char
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# ;; Returns to whatever called it
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#:hex 54
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# :hex 58
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# ;; Deal with line comments starting with #
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1FE00023 # CMPUI R14 R0 35
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2C5E0060 # JUMP.E R14 @ascii_comment
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A0300023 # CMPSKIPI.NE R0 35
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3C000044 # JUMP @ascii_comment
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# ;; Deal with line comments starting with ;
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1FE0003b # CMPUI R14 R0 59
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2C5E0058 # JUMP.E R14 @ascii_comment
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A030003b # CMPSKIPI.NE R0 59
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3C00003c # JUMP @ascii_comment
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# ;; Deal with all ascii less than '0'
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1FE00030 # CMPUI R14 R0 48
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2C8E0048 # JUMP.L R14 @ascii_other
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A0100030 # CMPSKIPI.GE R0 48
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3C000040 # JUMP @ascii_other
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# ;; Deal with '0'-'9'
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1FE00039 # CMPUI R14 R0 57
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2C7E0028 # JUMP.LE R14 @ascii_num
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A0000039 # CMPSKIPI.G R0 57
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3C00001c # JUMP @ascii_num
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# ;; Unset high bit to set everything into uppercase
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B00000df # ANDI R0 R0 0xDF
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# ;; Deal with all ascii less than 'A'
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1FE00041 # CMPUI R14 R0 65
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2C8E0038 # JUMP.L R14 @ascii_other
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A0100041 # CMPSKIPI.GE R0 65
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3C00002c # JUMP @ascii_other
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# ;; Deal with 'A'-'F'
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1FE00046 # CMPUI R14 R0 70
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2C7E0028 # JUMP.LE R14 @ascii_high
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# ;; Deal with all ascii less than 'a'
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1FE00061 # CMPUI R14 R0 97
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2C8E0028 # JUMP.L R14 @ascii_other
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# ;; Deal with 'a'-'f'
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1FE00066 # CMPUI R14 R0 102
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2C7E0010 # JUMP.LE R14 @ascii_low
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A0000046 # CMPSKIPI.G R0 70
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3C000010 # JUMP @ascii_high
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# ;; Ignore the rest
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3C00001c # JUMP @ascii_other
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3C000020 # JUMP @ascii_other
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# :ascii_num 98
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# :ascii_num 90
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11000030 # SUBUI R0 R0 48
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3C00ff88 # JUMP @loop_1
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# :ascii_low a0
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11000057 # SUBUI R0 R0 87
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3C00ff80 # JUMP @loop_1
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# :ascii_high a8
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3C00ff90 # JUMP @loop_1
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# :ascii_high 98
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11000037 # SUBUI R0 R0 55
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3C00ff78 # JUMP @loop_1
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# :ascii_other b0
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0D000030 # TRUE R0
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3C00ff70 # JUMP @loop_1
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# :ascii_comment b8
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2D211100 # LOADUI R1 0x1100 ; Read from TAPE_01
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3C00ff88 # JUMP @loop_1
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# :ascii_comment a0
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42100100 # FGETC ; Read another char
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1FE0000a # CMPUI R14 R0 10 ; Stop at the end of line
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2D210000 # LOADUI R1 0 ; Write to TTY
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42100200 # FPUTC ; The char we just read
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2C6Effec # JUMP.NE R14 @ascii_comment ; Otherwise keep looping
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3C00ffe0 # JUMP @ascii_other
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A020000a # CMPSKIPI.E R0 10 ; Stop at the end of line
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3C00fff8 # JUMP @ascii_comment ; Otherwise keep looping
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# :ascii_other ac
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0D000030 # TRUE R0
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3C00ff74 # JUMP @loop_1
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# ;; Finish function
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# ;; Cleans up at the end of the program
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# ;; Performs the HALT
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# :finish d4
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# :finish b4
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2D201100 # LOADUI R0 0x1100 ; Close TAPE_01
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42100002 # FCLOSE
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2D201101 # LOADUI R0 0x1101 ; Close TAPE_02
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@ -27,11 +27,11 @@
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LOADUI R0 0x1101
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FOPEN_WRITE
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LOADUI R1 0x1100 ; Read from tape_01
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;; Main program loop
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;; Halts when done
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:loop
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LOADUI R1 0x1100 ; Read from tape_01
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FGETC ; Read a Char
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;; Check for EOF
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@ -39,7 +39,7 @@
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JUMP @hex ; Convert it
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:loop_1
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JUMP.NP R0 @loop ; Don't use nonhex chars
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JUMP.NP R0 @loop ; Don't use nonhex chars
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JUMP.Z R11 @loop_2 ; Jump if toggled
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;; Process first byte of pair
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@ -54,6 +54,7 @@
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LOADI R11 1 ; Flip the toggle
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LOADUI R1 0x1101 ; Write the combined byte
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FPUTC ; To TAPE_02
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LOADUI R1 0x1100 ; Read from tape_01
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JUMP @loop ; Try to get more bytes
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@ -63,52 +64,41 @@
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;; Returns to whatever called it
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:hex
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;; Deal with line comments starting with #
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CMPUI R14 R0 35
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JUMP.E R14 @ascii_comment
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CMPSKIPI.NE R0 35
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JUMP @ascii_comment
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;; Deal with line comments starting with ;
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CMPUI R14 R0 59
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JUMP.E R14 @ascii_comment
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CMPSKIPI.NE R0 59
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JUMP @ascii_comment
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;; Deal with all ascii less than '0'
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CMPUI R14 R0 48
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JUMP.L R14 @ascii_other
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CMPSKIPI.GE R0 48
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JUMP @ascii_other
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;; Deal with '0'-'9'
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CMPUI R14 R0 57
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JUMP.LE R14 @ascii_num
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CMPSKIPI.G R0 57
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JUMP @ascii_num
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;; Unset high bit to set everything into uppercase
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ANDI R0 R0 0xDF
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;; Deal with all ascii less than 'A'
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CMPUI R14 R0 65
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JUMP.L R14 @ascii_other
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CMPSKIPI.GE R0 65
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JUMP @ascii_other
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;; Deal with 'A'-'F'
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CMPUI R14 R0 70
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JUMP.LE R14 @ascii_high
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;; Deal with all ascii less than 'a'
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CMPUI R14 R0 97
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JUMP.L R14 @ascii_other
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;; Deal with 'a'-'f'
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CMPUI R14 R0 102
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JUMP.LE R14 @ascii_low
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CMPSKIPI.G R0 70
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JUMP @ascii_high
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;; Ignore the rest
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JUMP @ascii_other
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:ascii_num
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SUBUI R0 R0 48
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JUMP @loop_1
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:ascii_low
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SUBUI R0 R0 87
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JUMP @loop_1
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:ascii_high
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SUBUI R0 R0 55
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JUMP @loop_1
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:ascii_comment
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FGETC ; Read another char
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CMPSKIPI.E R0 10 ; Stop at the end of line
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JUMP @ascii_comment ; Otherwise keep looping
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:ascii_other
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TRUE R0
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JUMP @loop_1
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:ascii_comment
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LOADUI R1 0x1100 ; Read from TAPE_01
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FGETC ; Read another char
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CMPUI R14 R0 10 ; Stop at the end of line
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LOADUI R1 0 ; Write to TTY
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FPUTC ; The char we just read
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JUMP.NE R14 @ascii_comment ; Otherwise keep looping
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JUMP @ascii_other
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;; Finish function
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@ -5,6 +5,6 @@ b3a910f18c6bc0ef4aa7a53cb3f0216a9f143319da67ed2a02210fe88b1e1131 roms/forth
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2b9727381aec15a504c0898189fbc2344209d8e04451e3fa5d743e08e38f64cf roms/M0
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24a4d74eb2eb7a82e68335643855658b27b5a6c3b13db473539f3e08d6f26ceb roms/SET
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0a427b14020354d1c785f5f900677e0059fce8f8d4456e9c19e5528cb17101eb roms/stage0_monitor
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85e5c06ac07f2b97d01dfb5454f5a698b3ec6c21fe53bf3fa57b386aac7b9601 roms/stage1_assembler-0
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3ea7fed1429400c1d6fc5b85180c4114755dfb1e6b88d69e7ecc465a40523bc8 roms/stage1_assembler-0
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e59338381ca3ab01a14fa0fc85d0fa1c6e4d59a06ac2d9d75668d878ab469769 roms/stage1_assembler-1
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61c1b0f2f628847d9491bd678ac7a23231527cc36493b321612f191674ff3c99 roms/stage1_assembler-2
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