34 lines
542 B
C
34 lines
542 B
C
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#ifndef _TB_CXXRTL_IO_H
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#define _TB_CXXRTL_IO_H
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#include <stdint.h>
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#define IO_BASE 0x80000000
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struct io_hw {
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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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};
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#define mm_io ((struct io_hw *const)IO_BASE)
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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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#endif
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