61 lines
1.1 KiB
C
61 lines
1.1 KiB
C
#ifndef _TB_CXXRTL_IO_H
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#define _TB_CXXRTL_IO_H
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#include <stdarg.h>
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#include <stdint.h>
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#include <stdio.h>
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#define IO_BASE 0x80000000
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typedef struct {
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volatile uint32_t print_char;
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volatile uint32_t print_u32;
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volatile uint32_t exit;
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} io_hw_t;
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#define mm_io ((io_hw_t *const)IO_BASE)
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typedef struct {
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volatile uint32_t mtime;
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volatile uint32_t mtimeh;
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volatile uint32_t mtimecmp;
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volatile uint32_t mtimecmph;
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} timer_hw_t;
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#define mm_timer ((timer_hw_t *const)(IO_BASE + 0x100))
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static inline void tb_putc(char c) {
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mm_io->print_char = (uint32_t)c;
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}
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static inline void tb_puts(const char *s) {
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while (*s)
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tb_putc(*s++);
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}
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static inline void tb_put_u32(uint32_t x) {
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mm_io->print_u32 = x;
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}
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static inline void tb_exit(uint32_t ret) {
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mm_io->exit = ret;
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}
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#ifndef PRINTF_BUF_SIZE
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#define PRINTF_BUF_SIZE 256
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#endif
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static inline void tb_printf(const char *fmt, ...) {
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char buf[PRINTF_BUF_SIZE];
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va_list args;
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va_start(args, fmt);
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vsnprintf(buf, PRINTF_BUF_SIZE, fmt, args);
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tb_puts(buf);
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va_end(args);
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}
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#define tb_assert(cond, ...) if (!(cond)) {tb_printf(__VA_ARGS__); tb_exit(-1);}
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#endif
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