403764c538
- .s files removed and replaced by .S as the .S is a standard extension for assembly that needs preprocessing
29 lines
715 B
C
Executable file
29 lines
715 B
C
Executable file
/* Miscellaneous constants used in assembler code. */
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W = _WORD_SIZE /* Machine word size. */
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/* Offsets in struct proc. They MUST match proc.h. */
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P_STACKBASE = 0
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GSREG = P_STACKBASE
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FSREG = GSREG+2 /* 386 introduces FS and GS segments*/
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ESREG = FSREG+2
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DSREG = ESREG+2
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DIREG = DSREG+2
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SIREG = DIREG+W
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BPREG = SIREG+W
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STREG = BPREG+W /* hole for another SP*/
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BXREG = STREG+W
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DXREG = BXREG+W
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CXREG = DXREG+W
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AXREG = CXREG+W
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RETADR = AXREG+W /* return address for save() call*/
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PCREG = RETADR+W
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CSREG = PCREG+W
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PSWREG = CSREG+W
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SPREG = PSWREG+W
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SSREG = SPREG+W
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P_STACKTOP = SSREG+W
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P_LDT_SEL = P_STACKTOP
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P_CR3 = P_LDT_SEL+W
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P_LDT = P_CR3+W
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Msize = 9 /* size of a message in 32-bit words*/
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