diff options
Diffstat (limited to 'src/drivers/memtext.cc')
| -rw-r--r-- | src/drivers/memtext.cc | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/src/drivers/memtext.cc b/src/drivers/memtext.cc new file mode 100644 index 0000000..b5371b1 --- /dev/null +++ b/src/drivers/memtext.cc @@ -0,0 +1,41 @@ +#include "memtext.hpp" +#include "core/paging.hpp" +#include "core/types.hpp" +#include "libs/string.hpp" + + + +char memtext_buffer[MEMTEXT_BUFFER_SIZE]; +u64 memtext_x=0; + +void memtext_init(){ + PAGING_MAP2_RANGE(MEMTEXT_ADDR_LOCATION,0x0,8); + u64* p_addr=(u64*)MEMTEXT_ADDR_LOCATION; + *p_addr=(u64)memtext_buffer; + + // Cleaning buffer + for(memtext_x=0;memtext_x<MEMTEXT_BUFFER_SIZE;memtext_x++) + memtext_buffer[memtext_x]=0; + memtext_x=0; +} + +void memtext_putchar(char c){ + + if(memtext_x>=MEMTEXT_BUFFER_SIZE){ + memtext_scrollup(1); + memtext_buffer[memtext_x-1]=c; + return; + } + memtext_buffer[memtext_x]=c; + memtext_x++; +} + +void memtext_scrollup(u32 n){ + u64 start=(u64)memtext_buffer; + for(u64 i=0;i<MEMTEXT_BUFFER_SIZE;i++){ + if(i+n<MEMTEXT_BUFFER_SIZE) + memtext_buffer[i]=memtext_buffer[i+n]; + else + memtext_buffer[i]=0; + } +}
\ No newline at end of file |