Mplab C30 Compiler -

// ------------------------------------------------------------ // 1. SAFE BANKING MACROS (avoid manual BANKED/FAR typos) // ------------------------------------------------------------ #define BANKED_NEAR ((near)) // Accessible without PSV #define BANKED_FAR attribute ((far)) // Any RAM, slower access #define Y_DATA_SPACE attribute ((space(ymemory))) // For DSP #define AUTO_PSV attribute ((space(auto_psv))) // const in program memory

// Initialize (buffer must be 2^N, ideally in Y data space) void c30_cbuf_init(c30_cbuf_t *cb, unsigned char *buf, unsigned int size) cb->head = 0; cb->tail = 0; cb->mask = size - 1; cb->buffer = buf; cb->len = size; mplab c30 compiler

A for C30 would address its most common real-world pain points: poor RAM banking management , lack of built-in circular buffer support for DSP , and verbose ISR syntax . unsigned char *buf

INTERRUPT(_U1RXInterrupt, 6) while (U1STAbits.URXDA) c30_cbuf_put(&uart_rx, U1RXREG); unsigned int size) cb-&gt

*data = cb->buffer[cb->tail]; cb->tail = (cb->tail + 1) & cb->mask; return 0;