Able to parse, but not yet able to analyze, other table accesses.
Chris Pressey
5 years ago
| 441 | 441 |
elif self.scanner.token in ("shl", "shr", "inc", "dec"):
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| 442 | 442 |
opcode = self.scanner.token
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| 443 | 443 |
self.scanner.scan()
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| 444 | |
dest = self.locexpr()
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444 |
dest = self.indexed_locexpr()
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| 445 | 445 |
return SingleOp(self.scanner.line_number, opcode=opcode, dest=dest, src=None)
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| 446 | 446 |
elif self.scanner.token in ("nop",):
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| 447 | 447 |
opcode = self.scanner.token
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| 472 | 472 |
| ld a, many + x
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| 473 | 473 |
| }
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| 474 | 474 |
? UnmeaningfulReadError: x
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|
475 |
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|
476 |
There are other operations you can do on tables.
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|
477 |
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|
478 |
| byte table[256] many
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|
479 |
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480 |
| routine main
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|
481 |
| inputs many
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482 |
| outputs many
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483 |
| trashes a, x, c, n, z
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|
484 |
| {
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485 |
| ld x, 0
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486 |
| ld a, 0
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487 |
| st off, c
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488 |
| add a, many + x
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|
489 |
| sub a, many + x
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|
490 |
| cmp a, many + x
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|
491 |
| and a, many + x
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|
492 |
| or a, many + x
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|
493 |
| xor a, many + x
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|
494 |
| shl many + x
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|
495 |
| shr many + x
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|
496 |
| inc many + x
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|
497 |
| dec many + x
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|
498 |
| }
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|
499 |
= ok
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| 475 | 500 |
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| 476 | 501 |
Copying to and from a word table.
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| 477 | 502 |
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| 172 | 172 |
| }
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| 173 | 173 |
= ok
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| 174 | 174 |
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| 175 | |
Tables of different types.
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| 176 | |
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| 177 | |
| byte table[256] tab
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| 178 | |
| word table[256] wtab
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| 179 | |
| vector (routine trashes a) table[256] vtab
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| 180 | |
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| 181 | |
| routine main {
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|
175 |
Tables of different types and some operations on them.
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|
176 |
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|
177 |
| byte table[256] many
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|
178 |
| word table[256] wmany
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179 |
| vector (routine trashes a) table[256] vmany
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|
180 |
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181 |
| routine main {
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182 |
| ld x, 0
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183 |
| ld a, 0
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184 |
| st off, c
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185 |
| add a, many + x
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|
186 |
| sub a, many + x
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|
187 |
| cmp a, many + x
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|
188 |
| and a, many + x
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|
189 |
| or a, many + x
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|
190 |
| xor a, many + x
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|
191 |
| shl many + x
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192 |
| shr many + x
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|
193 |
| inc many + x
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|
194 |
| dec many + x
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| 182 | 195 |
| }
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| 183 | 196 |
= ok
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| 184 | 197 |
|