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Splits 80186 additions from 80286; fills in a touch more.

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Thomas Harte 2022-02-01 20:38:10 -05:00
parent a4da1b6eb0
commit ae21726287
1 changed files with 33 additions and 5 deletions
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38
InstructionSets/x86/Instruction.hpp
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@ -200,11 +200,9 @@ enum class Operation: uint8_t {
// TODO: expand detail on all operations below.
//
// 80286 additions.
// 80186 additions.
//
// TODO: INS, OUTS, PUSHA, POPA,
/// Checks an array index against bounds.
BOUND,
@ -213,6 +211,24 @@ enum class Operation: uint8_t {
/// Procedure exit.
LEAVE,
/// Inputs a byte from a port, incrementing or decrementing the destination.
INSB,
/// Inputs a word from a port, incrementing or decrementingthe destination.
INSW,
/// Outputs a byte to a port, incrementing or decrementing the destination.
OUTSB,
/// Outputs a word to a port, incrementing or decrementing the destination.
OUTSW,
/// Pushes all general purpose registers to the stack.
PUSHA,
/// Pops all general purpose registers from the stack.
POPA,
//
// 80286 additions.
//
/// Adjusts requested privilege level.
ARPL,
/// Clears the task-switched flag.
@ -249,12 +265,13 @@ enum class Operation: uint8_t {
/// Stores the task register.
STR,
/// Undocumented (but used); loads all registers, including internal ones.
LOADALL,
//
// 80386 additions.
//
// TODO: CWDE (as distinct from CWD?), MOVSX, MOVZX, SETcc.
/// Loads a pointer to FS.
LFS,
/// Loads a pointer to GS.
@ -280,8 +297,19 @@ enum class Operation: uint8_t {
/// Bit test and set.
BTS,
/// Compare string double word.
CMPSD,
/// [Early 80386s only] Insert bit string.
IBITS,
/// Inputs a double word from a port, incrementing or decrementing the destination.
INSD,
/// Convert dword to qword.
CDQ,
/// Convert word to dword; AX will be expanded to fill EAX.
/// Compare and contrast to CWD which would expand AX to DX:AX.
CWDE,
};
enum class Size: uint8_t {