264 lines
6.6 KiB
C
264 lines
6.6 KiB
C
|
/**
|
||
|
|
*** Copyright (C) 1996-99 Intel Corporation. All rights reserved.
|
||
|
|
***
|
||
|
|
*** The information and source code contained herein is the exclusive
|
||
|
|
*** property of Intel Corporation and may not be disclosed, examined
|
||
|
|
*** or reproduced in whole or in part without explicit written authorization
|
||
|
|
*** from the company.
|
||
|
|
**/
|
||
|
|
|
||
|
|
#if defined(__assembler)
|
||
|
|
|
||
|
|
//
|
||
|
|
// Define standard integer registers.
|
||
|
|
//
|
||
|
|
|
||
|
|
zero = r0 // always 0
|
||
|
|
gp = r1 // global pointer
|
||
|
|
v0 = r8 // return value
|
||
|
|
sp = r12 // stack pointer
|
||
|
|
s0 = r4 // saved (preserved) integer registers
|
||
|
|
s1 = r5
|
||
|
|
s2 = r6
|
||
|
|
s3 = r7
|
||
|
|
|
||
|
|
//
|
||
|
|
// temporary (volatile) integer registers
|
||
|
|
//
|
||
|
|
|
||
|
|
t0 = r2
|
||
|
|
t1 = r3
|
||
|
|
t2 = r9
|
||
|
|
t3 = r10
|
||
|
|
t4 = r11
|
||
|
|
t5 = r14
|
||
|
|
t6 = r15
|
||
|
|
t7 = r16
|
||
|
|
t8 = r17
|
||
|
|
t9 = r18
|
||
|
|
t10 = r19
|
||
|
|
t11 = r20
|
||
|
|
t12 = r21
|
||
|
|
t13 = r22
|
||
|
|
t14 = r23
|
||
|
|
t15 = r24
|
||
|
|
t16 = r25
|
||
|
|
t17 = r26
|
||
|
|
t18 = r27
|
||
|
|
t19 = r28
|
||
|
|
t20 = r29
|
||
|
|
t21 = r30
|
||
|
|
t22 = r31
|
||
|
|
|
||
|
|
//
|
||
|
|
// Floating point saved (preserved) registers
|
||
|
|
//
|
||
|
|
|
||
|
|
fs0 = f2
|
||
|
|
fs1 = f3
|
||
|
|
fs2 = f4
|
||
|
|
fs3 = f5
|
||
|
|
fs4 = f16
|
||
|
|
fs5 = f17
|
||
|
|
fs6 = f18
|
||
|
|
fs7 = f19
|
||
|
|
fs8 = f20
|
||
|
|
fs9 = f21
|
||
|
|
fs10 = f22
|
||
|
|
fs11 = f23
|
||
|
|
fs12 = f24
|
||
|
|
fs13 = f25
|
||
|
|
fs14 = f26
|
||
|
|
fs15 = f27
|
||
|
|
fs16 = f28
|
||
|
|
fs17 = f29
|
||
|
|
fs18 = f30
|
||
|
|
fs19 = f31
|
||
|
|
|
||
|
|
//
|
||
|
|
// Low floating point temporary (volatile) registers
|
||
|
|
//
|
||
|
|
|
||
|
|
ft0 = f6
|
||
|
|
ft1 = f7
|
||
|
|
ft2 = f8
|
||
|
|
ft3 = f9
|
||
|
|
ft4 = f10
|
||
|
|
ft5 = f11
|
||
|
|
ft6 = f12
|
||
|
|
ft7 = f13
|
||
|
|
ft8 = f14
|
||
|
|
ft9 = f15
|
||
|
|
|
||
|
|
//
|
||
|
|
// input arguments
|
||
|
|
// Should be:
|
||
|
|
// a0 = in0
|
||
|
|
// a1 = in1
|
||
|
|
// a2 = in2
|
||
|
|
// a3 = in3
|
||
|
|
// a4 = in4
|
||
|
|
// a5 = in5
|
||
|
|
// a6 = in6
|
||
|
|
// a7 = in7
|
||
|
|
//
|
||
|
|
|
||
|
|
a0 = r32
|
||
|
|
a1 = r33
|
||
|
|
a2 = r34
|
||
|
|
a3 = r35
|
||
|
|
a4 = r36
|
||
|
|
a5 = r37
|
||
|
|
a6 = r38
|
||
|
|
a7 = r39
|
||
|
|
|
||
|
|
//
|
||
|
|
// branch return pointer (b0)
|
||
|
|
//
|
||
|
|
|
||
|
|
brp = rp
|
||
|
|
|
||
|
|
//
|
||
|
|
// branch saved (preserved)
|
||
|
|
//
|
||
|
|
|
||
|
|
bs0 = b1
|
||
|
|
bs1 = b2
|
||
|
|
bs2 = b3
|
||
|
|
bs3 = b4
|
||
|
|
bs4 = b5
|
||
|
|
|
||
|
|
//
|
||
|
|
// branch temporary (volatile) registers
|
||
|
|
//
|
||
|
|
|
||
|
|
bt0 = b6
|
||
|
|
bt1 = b7
|
||
|
|
|
||
|
|
//
|
||
|
|
// predicate registers
|
||
|
|
//
|
||
|
|
// p0 predicate register always 1
|
||
|
|
//
|
||
|
|
|
||
|
|
ps0 = p1 // saved (preserved) predicate registers
|
||
|
|
ps1 = p2
|
||
|
|
ps2 = p3
|
||
|
|
ps3 = p4
|
||
|
|
ps4 = p5
|
||
|
|
ps5 = p16 // Predicates p16-p63 are also preserved
|
||
|
|
ps6 = p17
|
||
|
|
ps7 = p18
|
||
|
|
ps8 = p19
|
||
|
|
ps9 = p20
|
||
|
|
|
||
|
|
pt0 = p6 // temporary (volatile) predicate registers
|
||
|
|
pt1 = p7
|
||
|
|
pt2 = p8
|
||
|
|
pt3 = p9
|
||
|
|
pt4 = p10
|
||
|
|
pt5 = p11
|
||
|
|
pt6 = p12
|
||
|
|
pt7 = p13
|
||
|
|
pt8 = p14
|
||
|
|
pt9 = p15
|
||
|
|
|
||
|
|
//
|
||
|
|
// Kernel registers
|
||
|
|
//
|
||
|
|
|
||
|
|
k0 = ar.k0
|
||
|
|
k1 = ar.k1
|
||
|
|
k2 = ar.k2
|
||
|
|
k3 = ar.k3
|
||
|
|
k4 = ar.k4
|
||
|
|
k5 = ar.k5
|
||
|
|
k6 = ar.k6
|
||
|
|
k7 = ar.k7
|
||
|
|
|
||
|
|
ia32dr67 = ar.k5 // dr6/dr7 for iA32
|
||
|
|
|
||
|
|
ia32fcr = ar21 // FCR for iA32
|
||
|
|
ia32eflag = ar24 // EFLAG for iA32
|
||
|
|
ia32csd = ar25 // CSD for iA32
|
||
|
|
ia32ssd = ar26 // SSD for iA32
|
||
|
|
ia32cflag = ar27 // CFLG (cr0/cr4) for iA32
|
||
|
|
ia32fsr = ar28 // FSR for iA32
|
||
|
|
ia32fir = ar29 // FIR for iA32
|
||
|
|
ia32fdr = ar30 // FDR for iA32
|
||
|
|
|
||
|
|
//
|
||
|
|
// Define iA32 constants, to be used by ISA transition code
|
||
|
|
//
|
||
|
|
_DataSelector == 0x23
|
||
|
|
_CodeSelector == 0x1b
|
||
|
|
_FsSelector == 0x3b
|
||
|
|
_LdtSelector == 0x4b
|
||
|
|
|
||
|
|
//
|
||
|
|
// Define the IA-32 registers
|
||
|
|
//
|
||
|
|
rEax = r8 // v0
|
||
|
|
rEcx = r9 // t2
|
||
|
|
rEdx = r10 // t3
|
||
|
|
rEbx = r11 // t4
|
||
|
|
rEsp = r12 // sp
|
||
|
|
rEbp = r13 // teb
|
||
|
|
rEsi = r14 // t5
|
||
|
|
rEdi = r15 // t6
|
||
|
|
|
||
|
|
|
||
|
|
//
|
||
|
|
// Define iA-32 Segment Registers mapping
|
||
|
|
//
|
||
|
|
rDSESFSGS = r16 // ES selector register (t7)
|
||
|
|
rCSSSLDTTSS = r17 // CS selector register (t8)
|
||
|
|
rEFLAG = ar24 // Eflag register
|
||
|
|
rESD = r24 // ES Descriptor register (t15)
|
||
|
|
rCSD = ar25 // CS Descriptor register
|
||
|
|
rSSD = ar26 // SS Descriptor register
|
||
|
|
rDSD = r27 // DS Descriptor register (t18)
|
||
|
|
rFSD = r28 // FS Descriptor register (t19)
|
||
|
|
rGSD = r29 // GS Descriptor register (t20)
|
||
|
|
rLDTD = r30 // LDT Descriptor register (t21)
|
||
|
|
rGDTD = r31 // GDT Descriptor register (t22)
|
||
|
|
|
||
|
|
//
|
||
|
|
// pointer to thread environment block
|
||
|
|
//
|
||
|
|
|
||
|
|
teb = r13 // per s/w convention
|
||
|
|
kteb = ar.k3 // known "true" value (changed only by kernel)
|
||
|
|
|
||
|
|
//
|
||
|
|
// kernel bank shadow (hidden) registers
|
||
|
|
//
|
||
|
|
|
||
|
|
h16 = r16
|
||
|
|
h17 = r17
|
||
|
|
h18 = r18
|
||
|
|
h19 = r19
|
||
|
|
h20 = r20
|
||
|
|
h21 = r21
|
||
|
|
h22 = r22
|
||
|
|
h23 = r23
|
||
|
|
h24 = r24
|
||
|
|
h25 = r25
|
||
|
|
h26 = r26
|
||
|
|
h27 = r27
|
||
|
|
h28 = r28
|
||
|
|
h29 = r29
|
||
|
|
h30 = r30
|
||
|
|
h31 = r31
|
||
|
|
|
||
|
|
// Standard register aliases for procedure entry/exit
|
||
|
|
|
||
|
|
// Should be:
|
||
|
|
// savedpfs = loc0
|
||
|
|
// savedbrp = loc1
|
||
|
|
|
||
|
|
#define savedpfs loc0
|
||
|
|
#define savedbrp loc1
|
||
|
|
|
||
|
|
#endif
|