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zongors-reality-engine
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fix endianess

This commit is contained in:
zongor 2025-06-08 23:45:54 -04:00
parent 39b6a1f15f
commit 244baf55f1
1 changed files with 11 additions and 3 deletions
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14
src/vm.c
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@ -53,11 +53,11 @@ int core_dump() {
}
uint8_t get_char(uint32_t word, int index) {
return (word >> (8 * (3 - index))) & 0xFF;
return (word >> (8 * index)) & 0xFF;
}
uint32_t set_char(uint32_t word, int index, uint8_t ch) {
return (word & ~(0xFF << (8 * (3 - index)))) | (ch << (8 * (3 - index)));
return (word & ~(0xFF << (8 * index))) | (ch << (8 * index));
}
/* Pack string into union-based memory */
@ -148,7 +148,7 @@ void run_vm() {
break;
}
case OP_INT_TO_F32: {
int tmp = memory[src1_addr].u;
uint32_t tmp = memory[src1_addr].u;
memory[dest_addr].f = (float)tmp;
break;
}
@ -262,6 +262,14 @@ int main() {
memory[i++].u = 105;
memory[i++].u = 0;
memory[i++].u = 0;
memory[i++].u = OP_READ_STRING;
memory[i++].u = 0;
memory[i++].u = 0;
memory[i++].u = 109;
memory[i++].u = OP_PRINT_STRING;
memory[i++].u = 110;
memory[i++].u = 0;
memory[i++].u = 0;
memory[i++].u = OP_HALT;
memory[100].u = 5;
memory[101].u = 1;