Shrink stage1_assembler-1 further
This commit is contained in:
Jeremiah Orians
parent
cb2bc1309f
commit
c81c2567ab
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@ -93,7 +93,7 @@ So we are going to limit ourselves to single character labels and pointers (:a a
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To build our improved hex assembler:
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./bin/vm --rom roms/stage1_assembler-0 --tape_01 stage1/stage1_assembler-1.hex0 --tape_02 roms/stage1_assembler-1
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roms/stage1_assembler-1 should have the sha256sum of e59338381ca3ab01a14fa0fc85d0fa1c6e4d59a06ac2d9d75668d878ab469769
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roms/stage1_assembler-1 should have the sha256sum of b6aabcc3418a0a28f4ed32ace43b20103d9d21dffae03e7936cb14fa0e044013
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* Step 4 get even long label support
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Now that we have labels and pointers, I want the ability to have labels like :main_function and :stack_start and be able to reference the absolute address of things in my code like $stack_start and complex objects that have 32bit pointers like &foo_bar.
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@ -15,7 +15,7 @@
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## along with stage0. If not, see <http://www.gnu.org/licenses/>.
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#:start 0
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2D2B019C # LOADUI R11 $table ; Where we are putting our address pointers
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2D2B0200 # LOADUI R11 0x200 ; Where we are putting our address pointers
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0D00003C # TRUE R12 ; Our toggle
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0D00002D # FALSE R13 ; Our PC counter
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2D2E0040 # LOADUI R14 $getLables_2 ; our first iterator
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@ -92,7 +92,8 @@ A0300040 # CMPSKIPI.NE R0 64 ; If the Char is @ the next char is the pointer to
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#:loop 88
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42100100 # FGETC ; Read a Char
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2CC000FC # JUMP.NP R0 @finish ; Check for EOF
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# ;; Check for EOF
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2CC000E8 # JUMP.NP R0 @finish
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# ;; Check for Label
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A030003A # CMPSKIPI.NE R0 58 ; Make sure we jump over the label
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@ -162,61 +163,49 @@ B00300FF # ANDI R0 R3 0xFF ; Preserve bottom half for later
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#:hex 118
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# ;; Deal with line comments starting with #
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A0300023 # CMPSKIPI.NE R0 35
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3C000058 # JUMP @ascii_comment
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3C000044 # JUMP @ascii_comment
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# ;; Deal with line comments starting with ;
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A030003B # CMPSKIPI.NE R0 59
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3C000050 # JUMP @ascii_comment
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3C00003C # JUMP @ascii_comment
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# ;; Deal with all ascii less than '0'
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A0100030 # CMPSKIPI.GE R0 48
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3C000054 # JUMP @ascii_other
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3C000040 # JUMP @ascii_other
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# ;; Deal with '0'-'9'
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A0000039 # CMPSKIPI.G R0 57
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3C000028 # JUMP @ascii_num
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3C00001C # JUMP @ascii_num
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# ;; Deal with all ascii less than 'A'
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A0100041 # CMPSKIPI.GE R0 65
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3C000044 # JUMP @ascii_other
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3C000030 # JUMP @ascii_other
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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 'A'-'F'
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A0000046 # CMPSKIPI.G R0 70
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3C000028 # JUMP @ascii_high
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# ;; Deal with all ascii less than 'a'
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A0100061 # CMPSKIPI.GE R0 97
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3C000034 # JUMP @ascii_other
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# ;; Deal with 'a'-'f'
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A0000066 # CMPSKIPI.G R0 102
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3C000010 # JUMP @ascii_low
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3C000010 # JUMP @ascii_high
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# ;; Ignore the rest
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3C000028 # JUMP @ascii_other
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3C000020 # JUMP @ascii_other
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#:ascii_num 15c
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#:ascii_num 150
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11000030 # SUBUI R0 R0 48
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0D01000E # JSR_COROUTINE R14
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#:ascii_low 164
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11000057 # SUBUI R0 R0 87
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0D01000E # JSR_COROUTINE R14
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#:ascii_high 16c
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#:ascii_high 158
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11000037 # SUBUI R0 R0 55
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0D01000E # JSR_COROUTINE R14
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#:ascii_comment 174
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#:ascii_comment 160
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42100100 # FGETC ; Read another char
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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 180
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#:ascii_other 16c
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0D000030 # TRUE R0
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0D01000E # JSR_COROUTINE R14
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#:finish 188
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#:finish 174
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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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@ -224,4 +213,4 @@ A020000A # CMPSKIPI.E R0 10 ; Stop at the end of line
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FFFFFFFF # HALT
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# ;; Where all of our pointers will be stored for our locations
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#:table 19c
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#:table 188
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@ -15,7 +15,7 @@
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; along with stage0. If not, see <http://www.gnu.org/licenses/>.
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:start
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LOADUI R11 $table ; Where we are putting our address pointers
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LOADUI R11 0x200 ; Where we are putting our address pointers
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TRUE R12 ; Our toggle
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FALSE R13 ; Our PC counter
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LOADUI R14 $getLables_2 ; our first iterator
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@ -179,24 +179,17 @@
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;; Deal with all ascii less than 'A'
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CMPSKIPI.GE R0 65
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JUMP @ascii_other
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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 'A'-'F'
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CMPSKIPI.G R0 70
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JUMP @ascii_high
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;; Deal with all ascii less than 'a'
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CMPSKIPI.GE R0 97
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JUMP @ascii_other
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;; Deal with 'a'-'f'
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CMPSKIPI.G R0 102
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JUMP @ascii_low
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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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JSR_COROUTINE R14
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:ascii_low
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SUBUI R0 R0 87
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JSR_COROUTINE R14
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:ascii_high
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SUBUI R0 R0 55
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JSR_COROUTINE R14
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@ -6,5 +6,5 @@ b3a910f18c6bc0ef4aa7a53cb3f0216a9f143319da67ed2a02210fe88b1e1131 roms/forth
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24a4d74eb2eb7a82e68335643855658b27b5a6c3b13db473539f3e08d6f26ceb roms/SET
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0a427b14020354d1c785f5f900677e0059fce8f8d4456e9c19e5528cb17101eb roms/stage0_monitor
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3ea7fed1429400c1d6fc5b85180c4114755dfb1e6b88d69e7ecc465a40523bc8 roms/stage1_assembler-0
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e59338381ca3ab01a14fa0fc85d0fa1c6e4d59a06ac2d9d75668d878ab469769 roms/stage1_assembler-1
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b6aabcc3418a0a28f4ed32ace43b20103d9d21dffae03e7936cb14fa0e044013 roms/stage1_assembler-1
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61c1b0f2f628847d9491bd678ac7a23231527cc36493b321612f191674ff3c99 roms/stage1_assembler-2
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