-
-#include "src/16.h"
-
-// TODO: Could we also provide a build mode to emit debug to the "Bochs E9 hack?"
-#ifdef DEBUGSERIAL
-# include <stdarg.h>
-# include <stdlib.h>
-# include <stdio.h>
-
-unsigned char _DEBUG_INITed = 0;
-struct info_8250 *_DEBUG_uart = NULL;
-
-int _DEBUG_INIT() {
- if (!_DEBUG_INITed) {
- unsigned int i;
- uint16_t port;
-
- if (!init_8250()) return 0;
-
- // what does the BIOS say the serial ports are?
- probe_8250_bios_ports();
- for (i=0;i < bios_8250_ports;i++) {
- port = get_8250_bios_port(i);
- if (port == 0) continue;
- probe_8250(port);
- }
-
- // what about the standard serial ports?
- for (i=0;i < (sizeof(standard_8250_ports)/sizeof(standard_8250_ports[0]));i++) {
- port = standard_8250_ports[i];
- if (port == 0) continue;
- probe_8250(port);
- }
-
- // pick the first port, which is probably COM1
- if (base_8250_ports == 0) return 0; // FIXME: You know "base_8250_ports" is probably a bad variable name for the max entries in info_8250_port[]
- _DEBUG_uart = &info_8250_port[0];
- _DEBUG_INITed = 1;
-
- // init the COM port.
- // in DOSBox-X, the "log" mode will receive our text and print it into the log file
- // on real hardware, our text will likely go over a null modem cable to another PC running a serial terminal program like PuTTY or minicom.
- // if nothing is connected, then the bytes go off into the ether to get lost and life goes on.
- uart_8250_enable_interrupt(_DEBUG_uart,0); // disable interrupts
- uart_8250_set_FIFO(_DEBUG_uart,0x07); // enable FIFO (why not?), also clear xmit/recv FIFO buffers, set threshhold to 1 byte
- uart_8250_set_MCR(_DEBUG_uart,3); // RTS and DTS on
- uart_8250_set_line_control(_DEBUG_uart,UART_8250_LCR_8BIT | UART_8250_LCR_PARITY); // 8 bit 1 stop bit odd parity
- uart_8250_set_baudrate(_DEBUG_uart,uart_8250_baud_to_divisor(_DEBUG_uart,9600)); // 9600 baud
- }
-
- return _DEBUG_INITed;
-}
-
-void _DEBUG(const char *msg) {
- if (_DEBUG_uart != NULL) {
- char c;
-
- while ((c=(*msg++)) != 0/*NUL*/) {
- while (!uart_8250_can_write(_DEBUG_uart)); // wait for the UART to indicate readiness for our output
- uart_8250_write(_DEBUG_uart,(uint8_t)c); // then write it
- }
- }
-}
-
-static char _DEBUGF_TMP[256];
-
-void _DEBUGF(const char *fmt,...) {
- va_list va;
-
- va_start(va,fmt);
- vsnprintf(_DEBUGF_TMP,sizeof(_DEBUGF_TMP),fmt,va);
- _DEBUG(_DEBUGF_TMP);
- va_end(va);
-}
-#endif
-
+\r
+#include "src/16.h"\r
+\r
+// TODO: Could we also provide a build mode to emit debug to the "Bochs E9 hack?"\r
+#ifdef DEBUGSERIAL\r
+# include <stdarg.h>\r
+# include <stdlib.h>\r
+# include <stdio.h>\r
+\r
+unsigned char _DEBUG_INITed = 0;\r
+struct info_8250 *_DEBUG_uart = NULL;\r
+\r
+int _DEBUG_INIT() {\r
+ if (!_DEBUG_INITed) {\r
+ unsigned int i;\r
+ uint16_t port;\r
+\r
+ if (!init_8250()) return 0;\r
+\r
+ // what does the BIOS say the serial ports are?\r
+ probe_8250_bios_ports();\r
+ for (i=0;i < bios_8250_ports;i++) {\r
+ port = get_8250_bios_port(i);\r
+ if (port == 0) continue;\r
+ probe_8250(port);\r
+ }\r
+\r
+ // what about the standard serial ports?\r
+ for (i=0;i < (sizeof(standard_8250_ports)/sizeof(standard_8250_ports[0]));i++) {\r
+ port = standard_8250_ports[i];\r
+ if (port == 0) continue;\r
+ probe_8250(port);\r
+ }\r
+\r
+ // pick the first port, which is probably COM1\r
+ if (base_8250_ports == 0) return 0; // FIXME: You know "base_8250_ports" is probably a bad variable name for the max entries in info_8250_port[]\r
+ _DEBUG_uart = &info_8250_port[0];\r
+ _DEBUG_INITed = 1;\r
+\r
+ // init the COM port.\r
+ // in DOSBox-X, the "log" mode will receive our text and print it into the log file\r
+ // on real hardware, our text will likely go over a null modem cable to another PC running a serial terminal program like PuTTY or minicom.\r
+ // if nothing is connected, then the bytes go off into the ether to get lost and life goes on.\r
+ uart_8250_enable_interrupt(_DEBUG_uart,0); // disable interrupts\r
+ uart_8250_set_FIFO(_DEBUG_uart,0x07); // enable FIFO (why not?), also clear xmit/recv FIFO buffers, set threshhold to 1 byte\r
+ uart_8250_set_MCR(_DEBUG_uart,3); // RTS and DTS on\r
+ uart_8250_set_line_control(_DEBUG_uart,UART_8250_LCR_8BIT | UART_8250_LCR_PARITY); // 8 bit 1 stop bit odd parity\r
+ uart_8250_set_baudrate(_DEBUG_uart,uart_8250_baud_to_divisor(_DEBUG_uart,9600)); // 9600 baud\r
+ }\r
+\r
+ return _DEBUG_INITed;\r
+}\r
+\r
+void _DEBUG(const char *msg) {\r
+ if (_DEBUG_uart != NULL) {\r
+ char c;\r
+\r
+ while ((c=(*msg++)) != 0/*NUL*/) {\r
+ while (!uart_8250_can_write(_DEBUG_uart)); // wait for the UART to indicate readiness for our output\r
+ uart_8250_write(_DEBUG_uart,(uint8_t)c); // then write it\r
+ }\r
+ }\r
+}\r
+\r
+static char _DEBUGF_TMP[256];\r
+\r
+void _DEBUGF(const char *fmt,...) {\r
+ va_list va;\r
+\r
+ va_start(va,fmt);\r
+ vsnprintf(_DEBUGF_TMP,sizeof(_DEBUGF_TMP),fmt,va);\r
+ _DEBUG(_DEBUGF_TMP);\r
+ va_end(va);\r
+}\r
+#endif\r
+\r
projects / 16.git / blobdiff