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UART_BASE is now volatile, preventing unexpected optimizations

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Imbus 2025-06-26 04:05:03 +02:00
parent 8959bc87b8
commit e2a8bf287f
1 changed files with 1 additions and 1 deletions
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start.c
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@ -5,7 +5,7 @@
#define NCPU 3
/* QEMU memory maps a UART device here. */
#define UART_BASE ((char *)0x10000000)
#define UART_BASE ((volatile char *)0x10000000)
/** Send a single character to the UART device */
void uart_putc(char c) { *UART_BASE = c; }