6502/CLK
1
0
Fork 0
mirror of https://github.com/TomHarte/CLK.git synced 2024-11-26 08:49:37 +00:00
Code Issues Projects Releases Wiki Activity

Add the SETs.

Browse Source
This commit is contained in:
Thomas Harte 2022-03-07 10:32:34 -05:00
parent bbb3168bae
commit 35a66c03c2
4 changed files with 56 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

37
InstructionSets/x86/Decoder.cpp
View File

@ -278,7 +278,7 @@ std::pair<int, typename Decoder<model>::InstructionT> Decoder<model>::decode(con
case 0x8c: MemRegReg(MOV, MemReg_Seg, DataSize::Word); break;
case 0x8d: MemRegReg(LEA, Reg_MemReg, data_size_); break;
case 0x8e: MemRegReg(MOV, Seg_MemReg, DataSize::Word); break;
case 0x8f: MemRegReg(POP, MemRegPOP, data_size_); break;
case 0x8f: MemRegReg(POP, MemRegSingleOperand, data_size_); break;
case 0x90: Complete(NOP, None, None, DataSize::None); break; // Or XCHG AX, AX?
case 0x91: Complete(XCHG, eAX, eCX, data_size_); break;
@ -474,8 +474,28 @@ std::pair<int, typename Decoder<model>::InstructionT> Decoder<model>::decode(con
case 0x7e: RequiresMin(i80386); Displacement(JLE, data_size_); break;
case 0x7f: RequiresMin(i80386); Displacement(JNLE, data_size_); break;
// TODO: [0x90, 0x97]: byte set on condition Eb: SETO, SETNO, SETB, SETNB, SETZ, SETNZ, SETBE, SETNBE
// TODO: [0x98, 0x9f]: SETS, SETNS, SETP, SETNP, SETL, SETNL, SETLE, SETNLE
#define Set(x) \
RequiresMin(i80386); \
MemRegReg(SET##x, MemRegSingleOperand, DataSize::Byte);
case 0x90: Set(O); break;
case 0x91: Set(NO); break;
case 0x92: Set(B); break;
case 0x93: Set(NB); break;
case 0x94: Set(Z); break;
case 0x95: Set(NZ); break;
case 0x96: Set(BE); break;
case 0x97: Set(NBE); break;
case 0x98: Set(S); break;
case 0x99: Set(NS); break;
case 0x9a: Set(P); break;
case 0x9b: Set(NP); break;
case 0x9c: Set(L); break;
case 0x9d: Set(NL); break;
case 0x9e: Set(LE); break;
case 0x9f: Set(NLE); break;
#undef Set
case 0xa0: RequiresMin(i80386); Complete(PUSH, FS, None, data_size_); break;
case 0xa1: RequiresMin(i80386); Complete(POP, FS, None, data_size_); break;
@ -568,8 +588,13 @@ std::pair<int, typename Decoder<model>::InstructionT> Decoder<model>::decode(con
case 3:
memreg = reg_table[rm];
// LES and LDS accept a memory argument only, not a register.
if(operation_ == Operation::LES || operation_ == Operation::LDS) {
// LES, LDS, etc accept a memory argument only, not a register.
if(
operation_ == Operation::LES ||
operation_ == Operation::LDS ||
operation_ == Operation::LGS ||
operation_ == Operation::LSS ||
operation_ == Operation::LFS) {
undefined();
}
break;
@ -678,7 +703,7 @@ std::pair<int, typename Decoder<model>::InstructionT> Decoder<model>::decode(con
}
break;
case ModRegRMFormat::MemRegPOP:
case ModRegRMFormat::MemRegSingleOperand:
source_ = destination_ = memreg;
if(reg != 0) {

6
InstructionSets/x86/Decoder.hpp
View File

@ -70,13 +70,11 @@ template <Model model> class Decoder {
Reg_MemReg,
// Parse for mode and register/memory fields, populating both
// source_ and destination_ fields with the result. Use the 'register'
// field to check for the POP operation.
MemRegPOP,
// source_ and destination_ fields with the single register/memory result.
MemRegSingleOperand,
// Parse for mode and register/memory fields, populating both
// the destination_ field with the result and setting source_ to Immediate.
// Use the 'register' field to check for the MOV operation.
MemRegMOV,
// Parse for mode and register/memory fields, populating the

18
InstructionSets/x86/Documentation/80386 opcode map.html
View File

@ -700,15 +700,7 @@
<tr>
<th rowspan=2>9x</th>
<td colspan=8>Byte set on condition (Eb)</td>
<td rowspan=2>SETS</td>
<td rowspan=2>SETNS</td>
<td rowspan=2>SETP</td>
<td rowspan=2>SETNP</td>
<td rowspan=2>SETL</td>
<td rowspan=2>SETNL</td>
<td rowspan=2>SETLE</td>
<td rowspan=2>SETNLE</td>
<td colspan=16>Byte set on condition (Eb)</td>
</tr>
<tr>
<!-- Byte set on condition (Eb) -->
@ -720,6 +712,14 @@
<td>SETNZ</td>
<td>SETBE</td>
<td>SETNBE</td>
<td>SETS</td>
<td>SETNS</td>
<td>SETP</td>
<td>SETNP</td>
<td>SETL</td>
<td>SETNL</td>
<td>SETLE</td>
<td>SETNLE</td>
</tr>
<tr>
<th rowspan=2>Ax</th>

3
InstructionSets/x86/Instruction.hpp
View File

@ -325,6 +325,9 @@ enum class Operation: uint8_t {
IRETD,
JECXZ,
LODSD,
SETO, SETNO, SETB, SETNB, SETZ, SETNZ, SETBE, SETNBE,
SETS, SETNS, SETP, SETNP, SETL, SETNL, SETLE, SETNLE,
};
enum class DataSize: uint8_t {