#define _EMUL_BUGAPI_C_
-/* from bug.S - Dale Rahn */
-#define _INCHR 0x00
-#define _INSTAT 0x01
-#define _INLN 0x02
-#define _READSTR 0x03
-#define _READLN 0x04
-#define _OUTCHR 0x20
-#define _OUTSTR 0x21
-#define _OUTLN 0x22
-#define _DSKRD 0x10
-#define _DSKWR 0x11
-#define _DSKCFIG 0x12
-#define _DSKFMT 0x14
-#define _DSKCTRL 0x15
-#define _WRITE 0x23
-#define _WRITELN 0x24
-#define _DELAY 0x43
-#define _RTC_RD 0x53
-#define _RETURN 0x63
-#define _BRD_ID 0x70
+/* from PowerPCBug Debugging Package User's Manual, part 2 of 2 and also bug.S - Dale Rahn */
+#define _INCHR 0x000 /* Input character */
+#define _INSTAT 0x001 /* Input serial port status */
+#define _INLN 0x002 /* Input line (pointer / pointer format) */
+#define _READSTR 0x003 /* Input string (pointer / count format) */
+#define _READLN 0x004 /* Input line (pointer / count format) */
+#define _CHKBRK 0x005 /* Check for break */
+#define _DSKRD 0x010 /* Disk read */
+#define _DKSWR 0x011 /* Disk write */
+#define _DSKCFIG 0x012 /* Disk configure */
+#define _DSKFMT 0x014 /* Disk format */
+#define _DSKCTRL 0x015 /* Disk control */
+#define _NETRD 0x018 /* Read from host */
+#define _NETWR 0x019 /* Write to host */
+#define _NETCFIG 0x01a /* Configure network parameters */
+#define _NETOPN 0x01b /* Open file for reading */
+#define _NETFRD 0x01c /* Retreive specified file blocks */
+#define _NETCTRL 0x01d /* Implement special control functions */
+#define _OUTCHR 0x020 /* Output character (pointer / pointer format) */
+#define _OUTSTR 0x021 /* Output string (pointer / pointer format) */
+#define _OUTLN 0x022 /* Output line (pointer / pointer format) */
+#define _WRITE 0x023 /* Output string (pointer / count format) */
+#define _WRITELN 0x024 /* Output line (pointer / count format) */
+#define _WRITDLN 0x025 /* Output line with data (pointer / count format) */
+#define _PCRLF 0x026 /* Output carriage return and line feed */
+#define _ERASLN 0x027 /* Erase line */
+#define _WRITD 0x028 /* Output string with data (pointer / count format) */
+#define _SNDBRK 0x029 /* Send break */
+#define _DELAY 0x043 /* Timer delay */
+#define _RTC_TM 0x050 /* Time initialization for RTC */
+#define _RTC_DT 0x051 /* Date initialization for RTC */
+#define _RTC_DSP 0x052 /* Display RTC time and date */
+#define _RTC_RD 0x053 /* Read the RTC registers */
+#define _REDIR 0x060 /* Redirect I/O of a system call function */
+#define _REDIR_I 0x061 /* Redirect input */
+#define _REDIR_O 0x062 /* Redirect output */
+#define _RETURN 0x063 /* Return to PPCbug */
+#define _BINDEC 0x064 /* Convert binary to binary coded decimal (BCD) */
+#define _CHANGEV 0x067 /* Parse value */
+#define _STRCMP 0x068 /* Compare two strings (pointer / count format) */
+#define _MULU32 0x069 /* Multiply two 32-bit unsigned integers */
+#define _DIVU32 0x06a /* Divide two 32-bit unsigned integers */
+#define _CHK_SUM 0x06b /* Generate checksum */
+#define _BRD_ID 0x070 /* Return pointer to board ID packet */
+#define _ENVIRON 0x071 /* Access boot environment parameters */
+#define _DIAGFCN 0x074 /* Diagnostic function(s) */
+#define _SIOPEPS 0x090 /* Retrieve SCSI pointers */
+#define _IOINQ 0x120 /* Port inquire */
+#define _IOINFORM 0x124 /* Port inform */
+#define _IOCONFIG 0x128 /* Port configure */
+#define _IODELETE 0x12c /* Port delete */
+#define _SYMBOLTA 0x130 /* Attach symbol table */
+#define _SYMBOLDA 0x131 /* Detach symbol table */
+
+struct bug_map {
+ int value;
+ const char *info;
+};
+
+static const struct bug_map bug_mapping[] = {
+ { _INCHR, ".INCHR -- Input character" },
+ { _INSTAT, ".INSTAT -- Input serial port status" },
+ { _INLN, ".INLN -- Input line (pointer / pointer format)" },
+ { _READSTR, ".READSTR -- Input string (pointer / count format)" },
+ { _READLN, ".READLN -- Input line (pointer / count format)" },
+ { _CHKBRK, ".CHKBRK -- Check for break" },
+ { _DSKRD, ".DSKRD -- Disk read" },
+ { _DKSWR, ".DKSWR -- Disk write" },
+ { _DSKCFIG, ".DSKCFIG -- Disk configure" },
+ { _DSKFMT, ".DSKFMT -- Disk format" },
+ { _DSKCTRL, ".DSKCTRL -- Disk control" },
+ { _NETRD, ".NETRD -- Read from host" },
+ { _NETWR, ".NETWR -- Write to host" },
+ { _NETCFIG, ".NETCFIG -- Configure network parameters" },
+ { _NETOPN, ".NETOPN -- Open file for reading" },
+ { _NETFRD, ".NETFRD -- Retreive specified file blocks" },
+ { _NETCTRL, ".NETCTRL -- Implement special control functions" },
+ { _OUTCHR, ".OUTCHR -- Output character" },
+ { _OUTSTR, ".OUTSTR -- Output string (pointer / pointer format)" },
+ { _OUTLN, ".OUTLN -- Output line (pointer / pointer format)" },
+ { _WRITE, ".WRITE -- Output string (pointer / count format)" },
+ { _WRITELN, ".WRITELN -- Output line (pointer / count format)" },
+ { _WRITDLN, ".WRITDLN -- Output line with data (pointer / count format)" },
+ { _PCRLF, ".PCRLF -- Output carriage return and line feed" },
+ { _ERASLN, ".ERASLN -- Erase line" },
+ { _WRITD, ".WRITD -- Output string with data (pointer / count format)" },
+ { _SNDBRK, ".SNDBRK -- Send break" },
+ { _DELAY, ".DELAY -- Timer delay" },
+ { _RTC_TM, ".RTC_TM -- Time initialization for RTC" },
+ { _RTC_DT, ".RTC_DT -- Date initialization for RTC" },
+ { _RTC_DSP, ".RTC_DSP -- Display RTC time and date" },
+ { _RTC_RD, ".RTC_RD -- Read the RTC registers" },
+ { _REDIR, ".REDIR -- Redirect I/O of a system call function" },
+ { _REDIR, ".REDIR -- Redirect input" },
+ { _REDIR, ".REDIR -- Redirect output" },
+ { _RETURN, ".RETURN -- Return to PPCbug" },
+ { _BINDEC, ".BINDEC -- Convert binary to binary coded decimal (BCD)" },
+ { _CHANGEV, ".CHANGEV -- Parse value" },
+ { _STRCMP, ".STRCMP -- Compare two strings (pointer / count format)" },
+ { _MULU32, ".MULU32 -- Multiply two 32-bit unsigned integers" },
+ { _DIVU32, ".DIVU32 -- Divide two 32-bit unsigned integers" },
+ { _CHK_SUM, ".CHK_SUM -- Generate checksum" },
+ { _BRD_ID, ".BRD_ID -- Return pointer to board ID packet" },
+ { _ENVIRON, ".ENVIRON -- Access boot environment parameters" },
+ { _DIAGFCN, ".DIAGFCN -- Diagnostic function(s)" },
+ { _SIOPEPS, ".SIOPEPS -- Retrieve SCSI pointers" },
+ { _IOINQ, ".IOINQ -- Port inquire" },
+ { _IOINFORM, ".IOINFORM -- Port inform" },
+ { _IOCONFIG, ".IOCONFIG -- Port configure" },
+ { _IODELETE, ".IODELETE -- Port delete" },
+ { _SYMBOLTA, ".SYMBOLTA -- Attach symbol table" },
+ { _SYMBOLDA, ".SYMBOLDA -- Detach symbol table" },
+};
/* Note: this module is called via a table. There is no benefit in
making it inline */
/* nothing happens here */
}
+static const char *
+emul_bugapi_instruction_name(int call_id)
+{
+ static char buffer[40];
+ int i;
+
+ for (i = 0; i < sizeof (bug_mapping) / sizeof (bug_mapping[0]); i++)
+ {
+ if (bug_mapping[i].value == call_id)
+ return bug_mapping[i].info;
+ }
+
+ (void) sprintf (buffer, "Unknown bug call 0x%x", call_id);
+ return buffer;
+}
+
+static void
+emul_bugapi_do_write(cpu *processor,
+ unsigned_word cia,
+ unsigned_word buf,
+ int nbytes,
+ const char *suffix)
+{
+ void *scratch_buffer = NULL;
+ char *p;
+ int nr_moved;
+
+ /* get a tempoary bufer */
+ if (nbytes > 0)
+ {
+ scratch_buffer = zalloc(nbytes);
+
+ /* copy in */
+ nr_moved = vm_data_map_read_buffer(cpu_data_map(processor),
+ scratch_buffer,
+ buf,
+ nbytes);
+ if (nr_moved != nbytes) {
+ /* FIXME - should handle better */
+ error("system_call()write copy failed (nr_moved=%d != nbytes=%d)\n",
+ nr_moved, nbytes);
+ }
+
+ /* write */
+ for (p = (char *)scratch_buffer; nbytes-- > 0; p++)
+ printf_filtered("%c", *p);
+
+ zfree(scratch_buffer);
+ }
+
+ if (suffix)
+ printf_filtered("%s", suffix);
+}
+
static int
emul_bugapi_instruction_call(cpu *processor,
unsigned_word cia,
os_emul_data *emul_data)
{
const int call_id = cpu_registers(processor)->gpr[10];
+ const char *my_prefix = "bugapi";
+
+ ITRACE (trace_os_emul,(" 0x%x %s, r3 = 0x%lx, r4 = 0x%lx\n",
+ call_id, emul_bugapi_instruction_name (call_id),
+ (long)cpu_registers(processor)->gpr[3],
+ (long)cpu_registers(processor)->gpr[4]));;
+
/* check that this isn't an invalid instruction */
if (cia != emul_data->system_call_address)
return 0;
switch (call_id) {
+ default:
+ error("emul-bugapi: unimplemented bugapi %s from address 0x%lx\n",
+ emul_bugapi_instruction_name (call_id), SRR0);
+ break;
+ /* output a character, r3 = character */
case _OUTCHR:
printf_filtered("%c", (char)cpu_registers(processor)->gpr[3]);
break;
+ /* output a string, r3 = ptr to 1st byte, r4 = ptr to last byte+1 */
+ case _OUTSTR:
+ emul_bugapi_do_write(processor, cia,
+ cpu_registers(processor)->gpr[3],
+ cpu_registers(processor)->gpr[4] - cpu_registers(processor)->gpr[3],
+ (const char *)0);
+ break;
+ /* output a string followed by \r\n, r3 = ptr to 1st byte, r4 = ptr to last byte+1 */
case _OUTLN:
+
+ emul_bugapi_do_write(processor, cia,
+ cpu_registers(processor)->gpr[3],
+ cpu_registers(processor)->gpr[4] - cpu_registers(processor)->gpr[3],
+ "\n");
+ break;
+ /* output a \r\n */
+ case _PCRLF:
printf_filtered("\n");
break;
+ /* return to ppcbug monitor */
case _RETURN:
cpu_halt(processor, cia, was_exited, 0); /* always succeeds */
break;
- default:
- error("emul-bugapi: unimplemented bugapi call 0x%x from address 0x%lx\n",
- call_id, SRR0);
- break;
}
return 1;
/* the instruction following this one is a RFI. Thus by just
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