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51 lines
986 B
C
51 lines
986 B
C
// The OS/K Team licenses this file to you under the MIT license.
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// See the LICENSE file in the project root for more information.
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// Register types
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enum
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{
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GPR = 0, // Non-reserved
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RES = 1 << 0, // Reserved for insternal use
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SYS = 1 << 1, // Reserved for supervisor mode
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};
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// FLG register
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enum
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{
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ZF = 1 << 0, // Zero flag
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SF = 1 << 1, // Sign flag
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CF = 1 << 4, // Carry flag
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OF = 1 << 5, // Overflow flag
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PF = 1 << 8, // Parity flag
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DF = 1 << 9, // Direction flag
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};
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// CR0 register
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enum
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{
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IF = 1 << 0, // Interrupts-enable flag
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UF = 1 << 1, // User-mode flag
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};
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struct reg_t
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{
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char *name;
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ulong flags;
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};
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enum
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{
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RZX, CR0, CR1, CR2, RFX, RIP, RBP, RSP,
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RAX, RBX, RCX, RDX, RSI, RDI, AX0, AX1,
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AX2, AX3, AX4, AX5, R12, R13, R14, R15,
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R16, R17, R18, R19, R20, GRP, TRP, SRP,
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NREGS
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};
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#define _fc0 ctx->ninstrs
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#define _rpc ctx->cur_pc
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