Check for table size (in parser, thus tests are for syntax.)
Chris Pressey
3 years ago
| 145 | 145 |
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if self.scanner.consume('table'):
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size = self.defn_size()
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148 |
if size not in (1, 2, 4, 8, 16, 32, 64, 129, 256):
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raise SyntaxError("Table size must be a power of two, 0 < size <= 256")
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| 148 | 150 |
type_ = TableType(type_, size)
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return type_
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| 531 | 531 |
= ok
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#### tables: range checking ####
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| 534 | |
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| 535 | |
A table may not have more than 256 entries.
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| 536 | |
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| 537 | |
| word table[512] many
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| 538 | |
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| 539 | |
| routine main
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| 540 | |
| inputs many
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| outputs many
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| 542 | |
| trashes a, x, n, z
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| 543 | |
| {
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| 544 | |
| ld x, 0
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| 545 | |
| copy 9999, many + x
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| 546 | |
| }
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| 547 | |
? zzzzz
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| 548 | |
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| 549 | |
The number of entries in a table must be a power of two.
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| 550 | |
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| 551 | |
| word table[48] many
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| 552 | |
|
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| 553 | |
| routine main
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| 554 | |
| inputs many
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| 555 | |
| outputs many
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| 556 | |
| trashes a, x, n, z
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| 557 | |
| {
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| 558 | |
| ld x, 0
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| 559 | |
| copy 9999, many + x
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| 560 | |
| }
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| 561 | |
? zzzz
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| 562 | 534 |
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| 563 | 535 |
If a table has fewer than 256 entries, it cannot be read or written
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| 564 | 536 |
beyond the maximum number of entries it has.
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| 152 | 152 |
| }
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| 153 | 153 |
= ok
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| 154 | 154 |
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The number of entries in a table must be a power of two
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which is greater than 0 and less than or equal to 256.
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157 |
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| word table[512] many
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| routine main
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| inputs many
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| outputs many
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| trashes a, x, n, z
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| {
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165 |
| ld x, 0
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| copy 9999, many + x
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| }
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? SyntaxError
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169 |
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| word table[48] many
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| routine main
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| inputs many
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| outputs many
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| trashes a, x, n, z
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176 |
| {
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| ld x, 0
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| copy 9999, many + x
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179 |
| }
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? SyntaxError
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| word table[0] many
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| routine main
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| inputs many
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| outputs many
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| trashes a, x, n, z
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| {
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| ld x, 0
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| copy 9999, many + x
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| }
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? SyntaxError
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| 155 | 194 |
Typedefs of different types.
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| 156 | 195 |
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| 157 | 196 |
| typedef byte octet
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