Fix BASIC
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c5a028c8c6
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+25
-16
@@ -26,25 +26,34 @@ uint8_t readMemory(uint16_t address, uint8_t *ram, uint8_t *rom) {
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}
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void writeMemory(uint16_t address, uint8_t value, uint8_t *ram) {
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if ((address < RAM_SIZE && address < IO_BASE) || address >= ROM_BASE) {
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if (address < ROM_BASE && ram[IO_BASE + ROM_BANKED_OUT] != 0) {
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/* Normal RAM */
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if (address < IO_BASE) {
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ram[address] = value;
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return;
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}
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/* ROM area */
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if (address >= ROM_BASE) {
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if (ram[IO_BASE + ROM_BANKED_OUT] != 0) {
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ram[address] = value;
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}
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} else {
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uint16_t _address = address - IO_BASE;
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switch (_address) {
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case SCREEN_ADDRESS: {
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putChar(value);
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break;
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}
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case ROM_BANKED_OUT: {
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ram[IO_BASE + ROM_BANKED_OUT] = value;
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break;
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}
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return;
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}
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default:
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break;
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}
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/* I/O area */
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uint16_t _address = address - IO_BASE;
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switch (_address) {
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case SCREEN_ADDRESS:
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putChar(value);
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break;
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case ROM_BANKED_OUT:
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ram[IO_BASE + ROM_BANKED_OUT] = value;
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break;
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default:
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break;
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}
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}
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