/* Define some handy constants for the trigger definition register */ #define MCFDEBUG_TDR_TRC_DISP 0x00000000 /* display on DDATA only */ #define MCFDEBUG_TDR_TRC_HALT 0x40000000 /* Processor halt on BP */ #define MCFDEBUG_TDR_TRC_INTR 0x80000000 /* Debug intr on BP */ #define MCFDEBUG_TDR_LXT1 0x00004000 /* TDR level 1 */ #define MCFDEBUG_TDR_LXT2 0x00008000 /* TDR level 2 */ #define MCFDEBUG_TDR_EBL1 0x00002000 /* Enable breakpoint level 1 */ #define MCFDEBUG_TDR_EBL2 0x20000000 /* Enable breakpoint level 2 */ #define MCFDEBUG_TDR_EDLW1 0x00001000 /* Enable data BP longword */ #define MCFDEBUG_TDR_EDLW2 0x10000000 #define MCFDEBUG_TDR_EDWL1 0x00000800 /* Enable data BP lower word */ #define MCFDEBUG_TDR_EDWL2 0x08000000 #define MCFDEBUG_TDR_EDWU1 0x00000400 /* Enable data BP upper word */ #define MCFDEBUG_TDR_EDWU2 0x04000000 #define MCFDEBUG_TDR_EDLL1 0x00000200 /* Enable data BP low low byte */ #define MCFDEBUG_TDR_EDLL2 0x02000000 #define MCFDEBUG_TDR_EDLM1 0x00000100 /* Enable data BP low mid byte */ #define MCFDEBUG_TDR_EDLM2 0x01000000 #define MCFDEBUG_TDR_EDUM1 0x00000080 /* Enable data BP up mid byte */ #define MCFDEBUG_TDR_EDUM2 0x00800000 #define MCFDEBUG_TDR_EDUU1 0x00000040 /* Enable data BP up up byte */ #define MCFDEBUG_TDR_EDUU2 0x00400000 #define MCFDEBUG_TDR_DI1 0x00000020 /* Data BP invert */ #define MCFDEBUG_TDR_DI2 0x00200000 #define MCFDEBUG_TDR_EAI1 0x00000010 /* Enable address BP inverted */ #define MCFDEBUG_TDR_EAI2 0x00100000 #define MCFDEBUG_TDR_EAR1 0x00000008 /* Enable address BP range */ #define MCFDEBUG_TDR_EAR2 0x00080000 #define MCFDEBUG_TDR_EAL1 0x00000004 /* Enable address BP low */ #define MCFDEBUG_TDR_EAL2 0x00040000 #define MCFDEBUG_TDR_EPC1 0x00000002 /* Enable PC BP */ #define MCFDEBUG_TDR_EPC2 0x00020000 #define MCFDEBUG_TDR_PCI1 0x00000001 /* PC BP invert */ #define MCFDEBUG_TDR_PCI2 0x00010000
/* Constants for the address attribute trigger register */ #define MCFDEBUG_AAR_RESET 0x00000005 /* Fields not yet implemented */
/* And some definitions for the writable sections of the CSR */ #define MCFDEBUG_CSR_RESET 0x00100000 #define MCFDEBUG_CSR_PSTCLK 0x00020000 /* PSTCLK disable */ #define MCFDEBUG_CSR_IPW 0x00010000 /* Inhibit processor writes */ #define MCFDEBUG_CSR_MAP 0x00008000 /* Processor refs in emul mode */ #define MCFDEBUG_CSR_TRC 0x00004000 /* Emul mode on trace exception */ #define MCFDEBUG_CSR_EMU 0x00002000 /* Force emulation mode */ #define MCFDEBUG_CSR_DDC_READ 0x00000800 /* Debug data control */ #define MCFDEBUG_CSR_DDC_WRITE 0x00001000 #define MCFDEBUG_CSR_UHE 0x00000400 /* User mode halt enable */ #define MCFDEBUG_CSR_BTB0 0x00000000 /* Branch target 0 bytes */ #define MCFDEBUG_CSR_BTB2 0x00000100 /* Branch target 2 bytes */ #define MCFDEBUG_CSR_BTB3 0x00000200 /* Branch target 3 bytes */ #define MCFDEBUG_CSR_BTB4 0x00000300 /* Branch target 4 bytes */ #define MCFDEBUG_CSR_NPL 0x00000040 /* Non-pipelined mode */ #define MCFDEBUG_CSR_SSM 0x00000010 /* Single step mode */
/* Constants for the BDM address attribute register */ #define MCFDEBUG_BAAR_RESET 0x00000005 /* Fields not yet implemented */
/* This routine wrappers up the wdebug asm instruction so that the register *andvaluecanberelativelyeasilyspecified.Thebiggesthasslehereis *thatthedebugmoduleinstructions(2longs)mustbelongwordalignedand *somepointerfiddlingisperformedtoensurethis.
*/ staticinlinevoid wdebug(int reg, unsignedlong data) { unsignedshort dbg_spc[6]; unsignedshort *dbg;
// Force alignment to long word boundary
dbg = (unsignedshort *)((((unsignedlong)dbg_spc) + 3) & 0xfffffffc);
// Build up the debug instruction
dbg[0] = 0x2c80 | (reg & 0xf);
dbg[1] = (data >> 16) & 0xffff;
dbg[2] = data & 0xffff;
dbg[3] = 0;
// Perform the wdebug instruction #if0 // This strain is for gas which doesn't have the wdebug instructions defined asm( "move.l %0, %%a0\n\t" ".word 0xfbd0\n\t" ".word 0x0003\n\t"
:: "g" (dbg) : "a0"); #else // And this is for when it does asm( "wdebug (%0)" :: "a" (dbg)); #endif
}
#endif
Messung V0.5 in Prozent
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(vorverarbeitet am 2026-09-27)
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