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More disasm work. 

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9932 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
andrewfish 2010-02-04 18:16:22 +00:00
parent 5e24f37a6f
commit fef5272652
1 changed files with 80 additions and 11 deletions
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69
ArmPkg/Library/ArmDisassemblerLib/ThumbDisassembler.c
View File

@ -90,6 +90,14 @@ extern CHAR8 *gReg[];
#define ADD_IMM5_2REG 228 #define ADD_IMM5_2REG 228
#define CPD_THUMB2 229 #define CPD_THUMB2 229
#define THUMB2_4REGS 230 #define THUMB2_4REGS 230
#define ADD_IMM12_1REG 231
#define THUMB2_IMM16 232
#define MRC_THUMB2 233
#define MRRC_THUMB2 234
#define THUMB2_MRS 235
#define THUMB2_MSR 236
typedef struct { typedef struct {
@ -210,6 +218,10 @@ THUMB_INSTRUCTIONS gOpThumb2[] = {
{ "TST", 0xf0100f00, 0xfff08f00, CMN_THUMB2 }, // CMP <Rn>, #<const> { "TST", 0xf0100f00, 0xfff08f00, CMN_THUMB2 }, // CMP <Rn>, #<const>
{ "TST", 0xea100f00, 0xfff08f00, ADD_IMM5_2REG }, // TST <Rn>, <Rm> {,<shift> #<const>} { "TST", 0xea100f00, 0xfff08f00, ADD_IMM5_2REG }, // TST <Rn>, <Rm> {,<shift> #<const>}
{ "MOV", 0xf04f0000, 0xfbef8000, ADD_IMM12_1REG }, // MOV <Rd>, #<const>
{ "MOVW", 0xf2400000, 0xfbe08000, THUMB2_IMM16 }, // MOVW <Rd>, #<const>
{ "MOVT", 0xf2c00000, 0xfbe08000, THUMB2_IMM16 }, // MOVT <Rd>, #<const>
{ "ADC", 0xf1400000, 0xfbe08000, ADD_IMM12 }, // ADC{S} <Rd>, <Rn>, #<const> { "ADC", 0xf1400000, 0xfbe08000, ADD_IMM12 }, // ADC{S} <Rd>, <Rn>, #<const>
{ "ADC", 0xeb400000, 0xffe08000, ADD_IMM5 }, // ADC{S} <Rd>, <Rn>, <Rm> {,<shift> #<const>} { "ADC", 0xeb400000, 0xffe08000, ADD_IMM5 }, // ADC{S} <Rd>, <Rn>, <Rm> {,<shift> #<const>}
{ "ADD", 0xf1000000, 0xfbe08000, ADD_IMM12 }, // ADD{S} <Rd>, <Rn>, #<const> { "ADD", 0xf1000000, 0xfbe08000, ADD_IMM12 }, // ADD{S} <Rd>, <Rn>, #<const>
@ -247,6 +259,14 @@ THUMB_INSTRUCTIONS gOpThumb2[] = {
{ "CPD", 0xee000000, 0xff000010, CPD_THUMB2 }, // CPD <coproc>,<opc1>,<CRd>,<CRn>,<CRm>,<opc2> { "CPD", 0xee000000, 0xff000010, CPD_THUMB2 }, // CPD <coproc>,<opc1>,<CRd>,<CRn>,<CRm>,<opc2>
{ "CPD2", 0xfe000000, 0xff000010, CPD_THUMB2 }, // CPD <coproc>,<opc1>,<CRd>,<CRn>,<CRm>,<opc2> { "CPD2", 0xfe000000, 0xff000010, CPD_THUMB2 }, // CPD <coproc>,<opc1>,<CRd>,<CRn>,<CRm>,<opc2>
{ "MRC", 0xee100000, 0xff100000, MRC_THUMB2 }, // MRC <coproc>,<opc1>,<Rt>,<CRn>,<CRm>,<opc2>
{ "MRC2", 0xfe100000, 0xff100000, MRC_THUMB2 }, // MRC2 <coproc>,<opc1>,<Rt>,<CRn>,<CRm>,<opc2>
{ "MRRC", 0xec500000, 0xfff00000, MRRC_THUMB2 }, // MRRC <coproc>,<opc1>,<Rt>,<Rt2>,<CRm>
{ "MRRC2", 0xfc500000, 0xfff00000, MRRC_THUMB2 }, // MRR2 <coproc>,<opc1>,<Rt>,<Rt2>,<CRm>
{ "MRS", 0xf3ef8000, 0xfffff0ff, THUMB2_MRS }, // MRS <Rd>, CPSR
{ "MSR", 0xf3808000, 0xfff0fcff, THUMB2_MSR }, // MSR CPSR_fs, <Rn>
{ "CLREX", 0xf3bf8f2f, 0xfffffff, THUMB2_NO_ARGS }, // CLREX { "CLREX", 0xf3bf8f2f, 0xfffffff, THUMB2_NO_ARGS }, // CLREX
{ "CLZ", 0xfab0f080, 0xfff0f0f0, THUMB2_2REGS }, // CLZ <Rd>,<Rm> { "CLZ", 0xfab0f080, 0xfff0f0f0, THUMB2_2REGS }, // CLZ <Rd>,<Rm>
@ -808,6 +828,22 @@ DisassembleThumbInstruction (
AsciiSPrint (&Buf[Offset], Size - Offset, " %a, %a, #0x%x", gReg[Rd], gReg[Rn], Target); AsciiSPrint (&Buf[Offset], Size - Offset, " %a, %a, #0x%x", gReg[Rd], gReg[Rn], Target);
return; return;
case ADD_IMM12_1REG:
// MOV{S} <Rd>, #<const> i:imm3:imm8
if ((OpCode32 & BIT20) == BIT20) {
Buf[Offset - 3] = 'S'; // assume %-6a
}
Target = (OpCode32 & 0xff) | ((OpCode32 >> 4) & 0x700) | ((OpCode & BIT26) == BIT26 ? BIT11 : 0);
AsciiSPrint (&Buf[Offset], Size - Offset, " %a, #0x%x", gReg[Rd], Target);
return;
case THUMB2_IMM16:
// MOVW <Rd>, #<const> i:imm3:imm8
Target = (OpCode32 & 0xff) | ((OpCode32 >> 4) & 0x700) | ((OpCode & BIT26) == BIT26 ? BIT11 : 0);
Target |= ((OpCode32 >> 4) & 0xf0000);
AsciiSPrint (&Buf[Offset], Size - Offset, " %a, #0x%x", gReg[Rd], Target);
return;
case ADD_IMM5: case ADD_IMM5:
// ADC{S} <Rd>, <Rn>, <Rm> {,LSL #<const>} imm3:imm2 // ADC{S} <Rd>, <Rn>, <Rm> {,LSL #<const>} imm3:imm2
if ((OpCode32 & BIT20) == BIT20) { if ((OpCode32 & BIT20) == BIT20) {
@ -891,6 +927,28 @@ DisassembleThumbInstruction (
} }
return; return;
case MRC_THUMB2:
// MRC <coproc>,<opc1>,<Rt>,<CRn>,<CRm>,<opc2>
coproc = (OpCode32 >> 8) & 0xf;
opc1 = (OpCode32 >> 20) & 0xf;
opc2 = (OpCode32 >> 5) & 0x7;
CRn = (OpCode32 >> 16) & 0xf;
CRm = OpCode32 & 0xf;
Offset += AsciiSPrint (&Buf[Offset], Size - Offset, " p%d,#%d,%a,c%d,c%d", coproc, opc1, gReg[Rt], CRn, CRm);
if (opc2 != 0) {
AsciiSPrint (&Buf[Offset], Size - Offset, ",#%d,", opc2);
}
return;
case MRRC_THUMB2:
// MRC <coproc>,<opc1>,<Rt>,<Rt2>,<CRm>,<opc2>
coproc = (OpCode32 >> 8) & 0xf;
opc1 = (OpCode32 >> 20) & 0xf;
CRn = (OpCode32 >> 16) & 0xf;
CRm = OpCode32 & 0xf;
Offset += AsciiSPrint (&Buf[Offset], Size - Offset, " p%d,#%d,%a,%a,c%d", coproc, opc1, gReg[Rt], gReg[Rt2], CRm);
return;
case THUMB2_2REGS: case THUMB2_2REGS:
// <Rd>, <Rm> // <Rd>, <Rm>
AsciiSPrint (&Buf[Offset], Size - Offset, " %a, %a", gReg[Rd], gReg[Rm]); AsciiSPrint (&Buf[Offset], Size - Offset, " %a, %a", gReg[Rd], gReg[Rm]);
@ -901,6 +959,17 @@ DisassembleThumbInstruction (
AsciiSPrint (&Buf[Offset], Size - Offset, " %a, %a, %a, %a", gReg[Rd], gReg[Rn], gReg[Rm], gReg[Rt]); AsciiSPrint (&Buf[Offset], Size - Offset, " %a, %a, %a, %a", gReg[Rd], gReg[Rn], gReg[Rm], gReg[Rt]);
return; return;
case THUMB2_MRS:
// MRS <Rd>, CPSR
AsciiSPrint (&Buf[Offset], Size - Offset, " %a, CPSR", gReg[Rd]);
return;
case THUMB2_MSR:
// MRS CPSR_<fields>, <Rd>
Target = (OpCode32 >> 10) & 3;
AsciiSPrint (&Buf[Offset], Size - Offset, " CPSR_%a%a, %a", (Target & 2) == 0 ? "":"f", (Target & 1) == 0 ? "":"s", gReg[Rd]);
return;
case THUMB2_NO_ARGS: case THUMB2_NO_ARGS:
default: default:
break; break;