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Handle 8, 16 and 32 bit accesses to extram.

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This commit is contained in:
Toby Jaffey 2025-12-11 10:33:45 +00:00
parent 63386f9a92
commit 7a1656ab10
5 changed files with 163 additions and 12 deletions
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25
test/extram/rom/rom.c
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@ -13,19 +13,36 @@ void main(void) {
} break;
case TEST2: {
uint32_t *p = (uint32_t *)UVM32_EXTRAM_BASE;
printdec(p[32]); // past the end
printdec(p[32]); // word read
} break;
case TEST3: {
uint32_t *p = (uint32_t *)UVM32_EXTRAM_BASE;
p[32] = 1234; // past the end
p[32] = 1234; // past the end, out of bounds
} break;
case TEST4: {
uint32_t *p = (uint32_t *)UVM32_EXTRAM_BASE;
p[0] = 1234; // good write
p[0] = 1234; // word write
yield(0);
} break;
case TEST5: {
uint8_t *p = (uint8_t *)UVM32_EXTRAM_BASE;
p[7] = 0xAB; // single byte write
yield(0);
} break;
case TEST6: {
uint8_t *p = (uint8_t *)UVM32_EXTRAM_BASE;
printdec(p[7]); // single byte read
} break;
case TEST7: {
uint16_t *p = (uint16_t *)UVM32_EXTRAM_BASE;
p[7] = 0xABCD; // short write
yield(0);
} break;
case TEST8: {
uint16_t *p = (uint16_t *)UVM32_EXTRAM_BASE;
printdec(p[7]); // short read
} break;
}
}