id stringlengths 22 129 | text stringlengths 60 19.5k | arch stringclasses 9
values | syntax stringclasses 5
values | kind stringclasses 4
values | repo stringclasses 32
values | path stringlengths 7 108 | license stringclasses 10
values | commit stringlengths 40 40 | source_host stringclasses 1
value | category stringclasses 15
values | source_url stringlengths 85 192 | line_start int64 1 5.48k | line_end int64 4 5.5k |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
NetBSD/src:sys/arch/vax/vax/subr.S:11 | movq %r0,-(%sp) /* push oldl/newl */
calls $2,_C_LABEL(lwp_startup) /* startup the lwp */
movl (%sp)+,%r0 /* grab func */
calls $1,(%r0) /* call it with arg */
ret
/*
* r1 = newlwp
* r0 = oldlwp
*/
JSBENTRY(Swtchto)
/* this pops the pc and psw from the stack and puts them in the pcb. */
svpctx # Now ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/subr.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/subr.S | 401 | 460 |
NetBSD/src:sys/arch/vax/vax/subr.S:12 | * it's TSO like x86 but I can't find a store-before-load
* barrier, which is the only one TSO requires explicitly.
*/
/* XXX store-before-store barrier */
movl %r1,CI_CURLWP(%r8) /* update ci_curlwp */
/* XXX store-before-load barrier */
#endif
mtpr PCB_PADDR(%r3),$PR_PCBB # set PA of new pcb
mtpr $IPL_HIGH,$... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/subr.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/subr.S | 441 | 500 |
NetBSD/src:sys/arch/vax/vax/subr.S:13 | subl2 $0xfffc,12(%ap)
brb 4b
3: movl $EFAULT,%r0
ret
ENTRY(kcopy,0)
mfpr $PR_ESP,%r3
movl (%r3),-(%sp) # save current pcb_onfault
movab 1f,(%r3) # set pcb_onfault
movl 4(%ap),%r1
movl 8(%ap),%r2
movc3 12(%ap),(%r1), (%r2)
clrl %r0
1: mfpr $PR_ESP,%r3
movl (%sp)+,(%r3) # restore pcb_onfault
ret
/*
* copy{... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/subr.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/subr.S | 481 | 540 |
NetBSD/src:sys/arch/vax/vax/subr.S:14 | movl 12(%ap),%r3 # len
movl 16(%ap),%r2 # copied
clrl %r0
mfpr $PR_ESP,%r1
movab 2f,(%r1) # set pcb_onfault
tstl %r3 # any chars to copy?
bneq 1f # yes, jump for more
0: tstl %r2 # save copied len?
beql 2f # no
subl3 4(%ap),%r5,(%r2) # save copied len
2: mfpr $PR_ESP,%r1
clrl (%r1) # clear pcb_onfault
r... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/subr.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/subr.S | 521 | 580 |
NetBSD/src:sys/arch/vax/vax/subr.S:15 | 2: UFETCHSTORE_EPILOGUE ;\
ret /* error already in %r0 */
/* LINTSTUB: int _ufetch_8(const uint8_t *uaddr, uint8_t *valp); */
ENTRY(_ufetch_8,0)
UFETCHSTORE_PROLOGUE
movb *4(%ap),*8(%ap) # *valp = *uaddr
UFETCHSTORE_EPILOGUE
UFETCHSTORE_RETURN
/* LINTSTUB: int _ufetch_16(const uint16_t *uaddr, uint16_t ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/subr.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/subr.S | 561 | 620 |
NetBSD/src:sys/arch/vax/vax/subr.S:16 | UFETCHSTORE_PROLOGUE
movl 8(%ap),*4(%ap) # *uaddr = val
UFETCHSTORE_EPILOGUE
UFETCHSTORE_RETURN
/**************************************************************************/
.align 2
JSBENTRY(Slock)
1: bbssi $0,(%r1),1b
rsb
JSBENTRY(Slocktry)
clrl %r0
bbssi $0,(%r1),1f
incl %r0
1: rsb
JSBENTRY(Sunlock)
bb... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/subr.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/subr.S | 601 | 631 |
NetBSD/src:sys/arch/vax/vax/subr.S:7 | caseb %r1,$1,$4 # What is the size
1: .word 1f-1b
.word 2f-1b
.word 3f-1b # This is unused
.word 3f-1b
1: movb (%r2),%r1 # Test a byte
brb 5f
2: movw (%r2),%r1 # Test a word
brb 5f
3: movl (%r2),%r1 # Test a long
brb 5f
4: incl %r3 # Got machine chk => addr bad
5: mtpr (%sp)+,$PR_IPL
movl %r3,%r0
ret
... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/subr.S | BSD-2-Clause | 0f470c04091ac4c3b5928b423a25307db3b7aacb | github | kernel | https://github.com/NetBSD/src/blob/0f470c04091ac4c3b5928b423a25307db3b7aacb/sys/arch/vax/vax/subr.S | 241 | 300 |
NetBSD/src:sys/arch/vax/vax/subr.S:8 | movl 12(%r1), %sp
jmp *8(%r1)
#endif
#if defined(MULTIPROCESSOR)
.align 2
.globl _C_LABEL(vax_mp_tramp) # used to kick off multiprocessor systems.
_C_LABEL(vax_mp_tramp):
ldpctx
rei
#endif
.globl softint_cleanup,softint_exit,softint_process
.type softint_cleanup@function
.type softint_exit@function
.type sof... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/subr.S | BSD-2-Clause | 3a3e6e6861107fa30395b99abb65697f94ef1bf8 | github | kernel | https://github.com/NetBSD/src/blob/3a3e6e6861107fa30395b99abb65697f94ef1bf8/sys/arch/vax/vax/subr.S | 281 | 340 |
NetBSD/src:sys/arch/vax/vax/subr.S:9 | #endif
mtpr PCB_PADDR(%r3),$PR_PCBB /* restore PA of interrupted pcb */
ldpctx /* implicitly updates curlwp */
rei
softint_common:
mfpr $PR_IPL,%r1
mtpr $IPL_HIGH,$PR_IPL /* we need to be at IPL_HIGH */
movpsl -(%sp) /* add cleanup hook */
pushab softint_cleanup
svpctx
/* We can use any register becau... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/subr.S | BSD-2-Clause | 3a3e6e6861107fa30395b99abb65697f94ef1bf8 | github | kernel | https://github.com/NetBSD/src/blob/3a3e6e6861107fa30395b99abb65697f94ef1bf8/sys/arch/vax/vax/subr.S | 321 | 380 |
NetBSD/src:sys/arch/vax/vax/subr.S:10 | rei /* get off interrupt stack */
SCBENTRY(softclock)
pushr $0x3 /* save r0 and r1 */
movl $SOFTINT_CLOCK,%r0
brb softint_common
SCBENTRY(softbio)
pushr $0x3 /* save r0 and r1 */
movl $SOFTINT_BIO,%r0
brb softint_common
SCBENTRY(softnet)
pushr $0x3 /* save r0 and r1 */
movl $SOFTINT_NET,%r0
brb sof... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/subr.S | BSD-2-Clause | 3a3e6e6861107fa30395b99abb65697f94ef1bf8 | github | kernel | https://github.com/NetBSD/src/blob/3a3e6e6861107fa30395b99abb65697f94ef1bf8/sys/arch/vax/vax/subr.S | 361 | 420 |
NetBSD/src:sys/arch/vax/vax/subr.S:11 | /* this pops the pc and psw from the stack and puts them in the pcb. */
svpctx # Now on interrupt stack
/* We can know use any register because ldpctx will overwrite them */
/* New LWP already in %r1 */
movl L_PCB(%r1),%r3 # Get pointer to new pcb.
movl %r0,PCB_R0(%r3) # move r0 into new pcb (return value)
#... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/subr.S | BSD-2-Clause | 3a3e6e6861107fa30395b99abb65697f94ef1bf8 | github | kernel | https://github.com/NetBSD/src/blob/3a3e6e6861107fa30395b99abb65697f94ef1bf8/sys/arch/vax/vax/subr.S | 401 | 460 |
NetBSD/src:sys/arch/vax/vax/subr.S:12 | /* r0 already has previous lwp */
/* r1 already has this lwp */
/* r2/r3 and r4/r5 restored */
rei /* get off interrupt stack */
#
# copy/fetch/store routines.
#
ENTRY(copyout, 0)
movl 8(%ap),%r3
blss 3f # kernel space
movl 4(%ap),%r1
brb 2f
ENTRY(copyin, 0)
movl 4(%ap),%r1
blss 3f # kernel space
movl... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/subr.S | BSD-2-Clause | 3a3e6e6861107fa30395b99abb65697f94ef1bf8 | github | kernel | https://github.com/NetBSD/src/blob/3a3e6e6861107fa30395b99abb65697f94ef1bf8/sys/arch/vax/vax/subr.S | 441 | 500 |
NetBSD/src:sys/arch/vax/vax/subr.S:13 | movl 8(%ap),%r2
movc3 12(%ap),(%r1), (%r2)
clrl %r0
1: mfpr $PR_ESP,%r3
movl (%sp)+,(%r3) # restore pcb_onfault
ret
/*
* copy{in,out}str() copies data from/to user space to/from kernel space.
* Security checks:
* 1) user space address must be < KERNBASE
* 2) the VM system will do the checks while copying
*/
E... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/subr.S | BSD-2-Clause | 3a3e6e6861107fa30395b99abb65697f94ef1bf8 | github | kernel | https://github.com/NetBSD/src/blob/3a3e6e6861107fa30395b99abb65697f94ef1bf8/sys/arch/vax/vax/subr.S | 481 | 540 |
NetBSD/src:sys/arch/vax/vax/subr.S:14 | 2: mfpr $PR_ESP,%r1
clrl (%r1) # clear pcb_onfault
ret
1: movb (%r5)+,(%r4)+ # copy one char
beql 0b # jmp if last char
sobgtr %r3,1b # copy one more
movl $ENAMETOOLONG,%r0 # inform about too long string
brb 0b # out of chars
/**************************************************************************/
.al... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/subr.S | BSD-2-Clause | 3a3e6e6861107fa30395b99abb65697f94ef1bf8 | github | kernel | https://github.com/NetBSD/src/blob/3a3e6e6861107fa30395b99abb65697f94ef1bf8/sys/arch/vax/vax/subr.S | 521 | 580 |
NetBSD/src:sys/arch/vax/vax/subr.S:15 | ENTRY(_ufetch_16,0)
UFETCHSTORE_PROLOGUE
movw *4(%ap),*8(%ap) # *valp = *uaddr
UFETCHSTORE_EPILOGUE
UFETCHSTORE_RETURN
/* LINTSTUB: int _ufetch_32(const uint32_t *uaddr, uint32_t *valp); */
ENTRY(_ufetch_32,0)
UFETCHSTORE_PROLOGUE
movl *4(%ap),*8(%ap) # *valp = *uaddr
UFETCHSTORE_EPILOGUE
UFETCHSTORE_RETURN
... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/subr.S | BSD-2-Clause | 3a3e6e6861107fa30395b99abb65697f94ef1bf8 | github | kernel | https://github.com/NetBSD/src/blob/3a3e6e6861107fa30395b99abb65697f94ef1bf8/sys/arch/vax/vax/subr.S | 561 | 620 |
NetBSD/src:sys/arch/vax/vax/subr.S:16 | rsb
JSBENTRY(Slocktry)
clrl %r0
bbssi $0,(%r1),1f
incl %r0
1: rsb
JSBENTRY(Sunlock)
bbcci $0,(%r1),1f
1: rsb
#
# data department
#
.data
.globl _C_LABEL(memtest)
_C_LABEL(memtest): # memory test in progress
.long 0 | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/subr.S | BSD-2-Clause | 3a3e6e6861107fa30395b99abb65697f94ef1bf8 | github | kernel | https://github.com/NetBSD/src/blob/3a3e6e6861107fa30395b99abb65697f94ef1bf8/sys/arch/vax/vax/subr.S | 601 | 620 |
NetBSD/src:sys/arch/vax/vax/unimpl_emul.S:2 | #define S_R3 12(%fp)
#define S_R4 16(%fp)
#define S_R5 20(%fp)
#define S_R6 24(%fp)
#define S_R7 28(%fp)
#define S_R8 32(%fp)
#define S_R9 36(%fp)
#define S_R10 40(%fp)
#define S_R11 44(%fp)
#define S_AP 48(%fp)
#define S_FP 52(%fp)
#define S_SP 56(%fp)
#define S_PC 60(%fp)
#define S_PSL 64(%fp)
# The condition codes.... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/unimpl_emul.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/unimpl_emul.S | 41 | 100 |
NetBSD/src:sys/arch/vax/vax/unimpl_emul.S:3 | #
#ifdef EMULATE_INKERNEL
touser: movl (%sp),-52(%sp) # save rsb address on top of new stack
movl 4(%sp),%r0 # restore saved reg
addl2 $12,%sp # pop junk from stack
pushr $0x7fff # save all regs
movl %sp,%fp # new frame pointer
tstl -(%sp) # remember old rsb address
incl S_PC # skip matching insn
rsb
#else
... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/unimpl_emul.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/unimpl_emul.S | 81 | 140 |
NetBSD/src:sys/arch/vax/vax/unimpl_emul.S:4 | movl S_PC,%r3 # argument address
extzv $4,$4,(%r3),%r2 # get mode
caseb %r2,$0,$0xf
0: .word getval_literal-0b # 0-3 literal
.word getval_literal-0b
.word getval_literal-0b
.word getval_literal-0b
.word 2f-0b # 4 indexed
.word getval_reg-0b # 5 register
.word getval_regdefer-0b # 6 register deferred
.wor... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/unimpl_emul.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/unimpl_emul.S | 121 | 180 |
NetBSD/src:sys/arch/vax/vax/unimpl_emul.S:5 | * Register mode. Grab the register number, yank the value out.
*/
getval_reg:
extzv $0,$4,(%r3),%r2 # Get reg number
incl %r3
ashl $2,%r2,%r2
addl3 %fp,%r2,%r5
bsbw emul_extract
brw 4f
/*
* 0x06
* Register deferred mode. Grab the register number, yank the value out,
* use that as the address to ge... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/unimpl_emul.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/unimpl_emul.S | 161 | 220 |
NetBSD/src:sys/arch/vax/vax/unimpl_emul.S:6 | ashl $2,%r2,%r2
addl2 %fp,%r2
movl (%r2),%r5
bsbw emul_extract
addl2 %r6,(%r2)
movl S_PC,%r3 /* if PC did change, S_PC was changed too */
brw 4f
/*
* 0xA
* Byte displacement mode.
*/
getval_bytedis:
extzv $0, $4, (%r3), %r2 # get register
incl %r3
ashl $2,%r2,%r2
addl2 %fp,%r2
movl (%r2),%r5
m... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/unimpl_emul.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/unimpl_emul.S | 201 | 260 |
NetBSD/src:sys/arch/vax/vax/unimpl_emul.S:7 | popr $(R2+R3+R4+R5+R6)
rsb
/*
* emul_extract: used by the getval functions. This extracts exactly %r6 bytes
* from the address in %r5 and places them in %r0 and %r1 (if necessary).
* 8 is the current maximum length.
*/
emul_extract:
cmpl $0x8, %r6
bgeq 1f
.word 0xffff # reserved operand
1:
caseb %r6, $0x1,... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/unimpl_emul.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/unimpl_emul.S | 241 | 300 |
NetBSD/src:sys/arch/vax/vax/unimpl_emul.S:8 | clrq %r0
pushr $(R2+R3+R6) # use %r2+%r3 as scratch reg
movl S_PC,%r3 # argument address
extzv $4,$4,(%r3),%r2 # get mode
caseb %r2,$0,$0x3
0: .word 1f-0b # 0-3 literal
.word 1f-0b
.word 1f-0b
.word 1f-0b
movl $0x8, %r6
bsbw getval
brw 4f
1: insv (%r3),$0,$3,%r0 # insert fraction
extzv $3,$3,(%r3),%r2 # ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/unimpl_emul.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/unimpl_emul.S | 281 | 340 |
NetBSD/src:sys/arch/vax/vax/unimpl_emul.S:9 | getval_byte:
clrl %r0
pushr $(R6+R1) # use %r2+%r3 as scratch reg
movl $0x1, %r6
bsbw getval
popr $(R6+R1)
rsb
#
# getaddr_byte get 4 bytes and stores them in %r0. Increases PC.
#
getaddr_byte:
clrl %r0
pushr $(R2+R3) # use %r2+%r3 as scratch reg
movl S_PC,%r3 # argument address
extzv $4,$4,(%r3),%r2 # get ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/unimpl_emul.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/unimpl_emul.S | 321 | 380 |
NetBSD/src:sys/arch/vax/vax/unimpl_emul.S:10 | #endif
1: extzv $0,$4,(%r3),%r2 # Get reg number
incl %r3
movl (%fp)[%r2],%r0 # Register contents
addl2 (%r3),%r0 # add displacement
cmpl %r2,$15 # pc?
bneq 0f # no, skip
addl2 $5,%r0 # compensate for displacement size
0: addl2 $4,%r3 # increase pc
brw 4f
5: extzv $0,$4,(%r3),%r2 # Get reg number
incl %r... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/unimpl_emul.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/unimpl_emul.S | 361 | 420 |
NetBSD/src:sys/arch/vax/vax/unimpl_emul.S:11 | bneq 0f # no, skip
addl2 $3,%r0 # compensate for displacement size
0: addl2 $2,%r3 # increase pc
brw 4f
6: extzv $0,$4,(%r3),%r2 # Get reg number
incl %r3
moval (%fp)[%r2],%r0
4: movl %r3,S_PC
popr $(R2+R3)
rsb
#
# Polynomial calculation, d-float
# Uses d-float instructions, so hopefully d-float is avail... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/unimpl_emul.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/unimpl_emul.S | 401 | 460 |
NetBSD/src:sys/arch/vax/vax/unimpl_emul.S:12 | movl %r3,S_R3
clrq S_R4
brw goback
#ifdef EMULATE_INKERNEL
# When we end up somewhere we don't want.
die: pushl %r1
pushl %r0
calls $2,_printf
movl %fp,sp
brw goback # anything may happen
#endif
# these emodd-related
#define TMPSIZE 0x20 /* temp bytes -- be careful with this! */
#define PRECIS 0x7
#define TMP... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/unimpl_emul.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/unimpl_emul.S | 441 | 500 |
NetBSD/src:sys/arch/vax/vax/unimpl_emul.S:13 | movl %sp, %r3 /* %r3 = addr of exp space (1) */
clrl -(%sp)
movl %sp, %r5 /* %r5 = addr of exp space (2) */
subl2 $0x10, %sp
movl %sp, %r6 /* %r6 = addr of allocated target space */
/*
* Now we package both numbers up and call fltext_De, which
* will remove the exponent and sign; this will make them
* ea... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/unimpl_emul.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/unimpl_emul.S | 481 | 540 |
NetBSD/src:sys/arch/vax/vax/unimpl_emul.S:14 | bsbw getval_dfloat # get operand into %r0 and %r1
/* Check for sign = 0 and exp = 0; if it is, zeroexit. */
bicl3 $0x7f, %r0, %r4
cmpl %r4, $0x0
bneq 1f
bsbw getval_byte # get multiplier extension operand
bsbw getval_dfloat # get target operand
jmp zeroexit
1:
/* Check for sign = 1 and exp = 0; if it is, do a... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/unimpl_emul.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/unimpl_emul.S | 521 | 580 |
NetBSD/src:sys/arch/vax/vax/unimpl_emul.S:15 | calls $0x1, bitcnt
movl %r0, %r2 /* %r2 = bitcount of TMPFRAC2 */
/*
* Now we get ready to multiply. This multiplies a byte at a time,
* converting to double with CVTLD and adding partial results to
* TMPFRACTGT. There's probably a faster way to do this.
*/
clrd TMPFRACTGT
pushr $0x7fc
subl2 $0x8, %sp... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/unimpl_emul.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/unimpl_emul.S | 561 | 620 |
NetBSD/src:sys/arch/vax/vax/unimpl_emul.S:16 | /* This may be bigger than a longword. Break it up. */
5: cmpl %r9, $0x1e
bleq 6f
subl2 $0x1e, %r9
ashl $0x1e, $0x1, %r8
cvtld %r8, (%r1)
muld2 (%r1), (%r2)
jmp 5b
6:
ashl %r9, $0x1, %r8
cvtld %r8, (%r1)
muld2 (%r1), (%r2)
addd2 (%r2), TMPFRACTGT
9:
cmpl %r5, $0x0
beql 2f
decl %r5
jmp 1b
2: cmpl %r6, $... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/unimpl_emul.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/unimpl_emul.S | 601 | 660 |
NetBSD/src:sys/arch/vax/vax/unimpl_emul.S:17 | 1:
bicl3 $0xffff7fff, %r8, %r5
bneq 2f
incl %r3
ashl $0x1, %r8, %r5
movl %r5, %r8
jmp 1b
2:
/*
* Now we do post-normalization (by subtracting %r3) and
* put the exponent (in %r9) into TMPFRACTGT.
*/
subl2 %r3, %r9
insv %r9, $0x7, $0x8, TMPFRACTGT
bisl2 %r6, TMPFRACTGT # set the sign
/*
* Now we ne... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/unimpl_emul.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/unimpl_emul.S | 641 | 700 |
NetBSD/src:sys/arch/vax/vax/unimpl_emul.S:18 | /*
* In the case where we have more than 55 bits in the integer,
* there aren't any bits left for the fraction. Therefore we're
* done here; TMPFRAC1 is equal to TMPFRACTGT and TMPFRAC2 is 0.
*/
movq $0d0.0, TMPFRAC2
jmp 9f /* we're done, move on */
1:
/*
* We do the mod by using ASHQ to shift and trunc... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/unimpl_emul.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/unimpl_emul.S | 681 | 740 |
NetBSD/src:sys/arch/vax/vax/unimpl_emul.S:19 | # we have the integer in TMPFRAC1, now get the fraction in TMPFRAC2
subd3 TMPFRAC1, TMPFRACTGT, TMPFRAC2
jmp 9f
8:
/*
* We are less than 1.0; TMPFRAC1 should be 0, and TMPFRAC2 should
* be equal to TMPFRACTGT.
*/
movd $0d0.0, TMPFRAC1
movd TMPFRACTGT, TMPFRAC2
9:
/*
* We're done. We can use CVTDL here, s... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/unimpl_emul.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/unimpl_emul.S | 721 | 780 |
NetBSD/src:sys/arch/vax/vax/unimpl_emul.S:20 | /* Z == 1, everything else has been cleared already */
bisl2 $PSL_Z, S_PSL
bsbw getaddr_byte
movl $0x0, (%r0)
bsbw getaddr_byte
movd $0d0, (%r0)
brw goback
/*
* bitcnt: counts significant bits backwards in a quadword
* returns number of bits, unless there aren't any;
* in that case it will return $0xfffffff... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/unimpl_emul.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/unimpl_emul.S | 761 | 820 |
NetBSD/src:sys/arch/vax/vax/unimpl_emul.S:21 | */
subl3 %r3, $0x8, %r0
ashl $0x5, %r1, %r2
addl2 %r2, %r0
ret
3: /* this quadword is 0 */
movl $0xffffffff, %r0
ret
/*
* The fltext_X routines separate fraction and exponent* bits.
* They return (via %r0) the amount of bits in the fraction.
*
* *: exponents are left in excess-128 form
* D_ floatin... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/unimpl_emul.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/unimpl_emul.S | 801 | 852 |
NetBSD/src:sys/arch/vax/vax/unimpl_emul.S:22 | movb 6(%r0), (%r1)+
/*
* if there are extension bits (EMOD EDIV etc.) they are
* low-order
*/
movb 0x10(%ap), (%r1)
movl 0x4(%ap), %r0 # %r0 - addr of source
movl 0xc(%ap), %r2 # %r2 - addr of exponent destination
extzv $0x7, $0x8, (%r0), (%r2) # get exponent out
ret | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/unimpl_emul.S | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/vax/vax/unimpl_emul.S | 841 | 852 |
NetBSD/src:sys/arch/vax/vax/unimpl_emul.S:17 | 1:
bicl3 $0xffff7fff, %r8, %r5
bneq 2f
incl %r3
ashl $0x1, %r8, %r5
movl %r5, %r8
jmp 1b
2:
/*
* Now we do post-normalization (by subtracting %r3) and
* put the exponent (in %r9) into TMPFRACTGT.
*/
subl2 %r3, %r9
insv %r9, $0x7, $0x8, TMPFRACTGT
bisl2 %r6, TMPFRACTGT # set the sign
/*
* Now we ne... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/unimpl_emul.S | BSD-2-Clause | 3a3e6e6861107fa30395b99abb65697f94ef1bf8 | github | kernel | https://github.com/NetBSD/src/blob/3a3e6e6861107fa30395b99abb65697f94ef1bf8/sys/arch/vax/vax/unimpl_emul.S | 641 | 700 |
NetBSD/src:sys/arch/vax/vax/unimpl_emul.S:18 | /*
* In the case where we have more than 55 bits in the integer,
* there aren't any bits left for the fraction. Therefore we're
* done here; TMPFRAC1 is equal to TMPFRACTGT and TMPFRAC2 is 0.
*/
movq $0f0.0, TMPFRAC2
jmp 9f /* we're done, move on */
1:
/*
* We do the mod by using ASHQ to shift and trunc... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/unimpl_emul.S | BSD-2-Clause | 3a3e6e6861107fa30395b99abb65697f94ef1bf8 | github | kernel | https://github.com/NetBSD/src/blob/3a3e6e6861107fa30395b99abb65697f94ef1bf8/sys/arch/vax/vax/unimpl_emul.S | 681 | 740 |
NetBSD/src:sys/arch/vax/vax/unimpl_emul.S:19 | # we have the integer in TMPFRAC1, now get the fraction in TMPFRAC2
subd3 TMPFRAC1, TMPFRACTGT, TMPFRAC2
jmp 9f
8:
/*
* We are less than 1.0; TMPFRAC1 should be 0, and TMPFRAC2 should
* be equal to TMPFRACTGT.
*/
movd $0f0.0, TMPFRAC1
movd TMPFRACTGT, TMPFRAC2
9:
/*
* We're done. We can use CVTDL here, s... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/unimpl_emul.S | BSD-2-Clause | 3a3e6e6861107fa30395b99abb65697f94ef1bf8 | github | kernel | https://github.com/NetBSD/src/blob/3a3e6e6861107fa30395b99abb65697f94ef1bf8/sys/arch/vax/vax/unimpl_emul.S | 721 | 780 |
NetBSD/src:sys/arch/vax/vax/unimpl_emul.S:20 | /* Z == 1, everything else has been cleared already */
bisl2 $PSL_Z, S_PSL
bsbw getaddr_byte
movl $0x0, (%r0)
bsbw getaddr_byte
movd $0f0, (%r0)
brw goback
/*
* bitcnt: counts significant bits backwards in a quadword
* returns number of bits, unless there aren't any;
* in that case it will return $0xfffffff... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/vax/vax/unimpl_emul.S | BSD-2-Clause | 3a3e6e6861107fa30395b99abb65697f94ef1bf8 | github | kernel | https://github.com/NetBSD/src/blob/3a3e6e6861107fa30395b99abb65697f94ef1bf8/sys/arch/vax/vax/unimpl_emul.S | 761 | 820 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:3 | addl %a5,ar
#define RELOC(var, ar) _RELOC(_C_LABEL(var), ar)
#define ASRELOC(var, ar) _RELOC(_ASM_LABEL(var), ar)
BSS(esym,4)
.globl _C_LABEL(edata)
.globl _C_LABEL(etext),_C_LABEL(end)
/*
* This is for kvm_mkdb, and should be the address of the beginning
* of the kernel text segment (not necessarily the same ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/virt68k/virt68k/locore.s | 81 | 140 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:4 | ASRELOC(tmpstk, %a0)
movl %a0,%sp | give ourselves a temporary stack
RELOC(edata,%a0) | clear out BSS
movl #_C_LABEL(end) - 4, %d0 | (must be <= 256 kB)
subl #_C_LABEL(edata), %d0
lsrl #2,%d0
1: clrl %a0@+
dbra %d0,1b
/*
* Qemu does not pass us the symbols, so leave esym alone.
* The bootinfo immediatel... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/virt68k/virt68k/locore.s | 121 | 180 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:5 | movl %d0, %d7
/* NOTE: %d7 is now off-limits!! */
/*
* Enable the MMU.
* Since the kernel is mapped logical == physical, there is no prep
* work to do.
*/
#include <m68k/m68k/mmu_enable.s>
/*
* Should be running mapped from this point on
*/
Lmmuenabled:
lea _ASM_LABEL(tmpstk),%sp | re-load the temporary stac... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/virt68k/virt68k/locore.s | 161 | 219 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:6 | * I don't see an obvious ordering-only instruction in the m68k
* instruction set, but qemu implements CAS with
* store-before-load ordering, so this should work for virtio.
*/
moveq #0,%d0
casl %d0,%d0,%sp@
rts
END(paravirt_membar_sync)
/*
* Misc. global variables.
*/
.data
GLOBAL(mmutype)
.long MMU_6804... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/virt68k/virt68k/locore.s | 201 | 219 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:5 | movl %d0, %d7
/* NOTE: %d7 is now off-limits!! */
/*
* Enable the MMU.
* Since the kernel is mapped logical == physical, there is no prep
* work to do.
*/
#include <m68k/m68k/mmu_enable.s>
/*
* Should be running mapped from this point on
*/
Lmmuenabled:
lea _ASM_LABEL(tmpstk),%sp | re-load the temporary stac... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 99d031f1ffd1c119aa60d578cf4a35c43ca48e6f | github | kernel | https://github.com/NetBSD/src/blob/99d031f1ffd1c119aa60d578cf4a35c43ca48e6f/sys/arch/virt68k/virt68k/locore.s | 161 | 220 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:6 | * interrupts.
*/
ENTRY_NOPROFILE(intrhand_autovec)
addql #1,_C_LABEL(intr_depth)
INTERRUPT_SAVEREG
jbsr _C_LABEL(intr_dispatch) | call dispatcher
INTERRUPT_RESTOREREG
subql #1,_C_LABEL(intr_depth)
jra _ASM_LABEL(rei) | all done
ENTRY(paravirt_membar_sync)
/*
* Store-before-load ordering with respect to mat... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 99d031f1ffd1c119aa60d578cf4a35c43ca48e6f | github | kernel | https://github.com/NetBSD/src/blob/99d031f1ffd1c119aa60d578cf4a35c43ca48e6f/sys/arch/virt68k/virt68k/locore.s | 201 | 242 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:5 | movl %d0, %d7
/* NOTE: %d7 is now off-limits!! */
/*
* Enable the MMU.
* Since the kernel is mapped logical == physical, there is no prep
* work to do.
*/
#include <m68k/m68k/mmu_enable.s>
/*
* Should be running mapped from this point on
*/
Lmmuenabled:
lea _ASM_LABEL(tmpstk),%sp | re-load the temporary stac... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 77232dcadc6b560bf38f2f6d53d5fd087a321d0c | github | kernel | https://github.com/NetBSD/src/blob/77232dcadc6b560bf38f2f6d53d5fd087a321d0c/sys/arch/virt68k/virt68k/locore.s | 161 | 220 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:6 | * interrupts.
*/
ENTRY_NOPROFILE(intrhand_autovec)
addql #1,_C_LABEL(intr_depth)
INTERRUPT_SAVEREG
jbsr _C_LABEL(intr_dispatch) | call dispatcher
INTERRUPT_RESTOREREG
subql #1,_C_LABEL(intr_depth)
jra _ASM_LABEL(rei) | all done
/*
* Primitives
*/
/*
* Use common m68k process/lwp switch and context save su... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 77232dcadc6b560bf38f2f6d53d5fd087a321d0c | github | kernel | https://github.com/NetBSD/src/blob/77232dcadc6b560bf38f2f6d53d5fd087a321d0c/sys/arch/virt68k/virt68k/locore.s | 201 | 251 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:7 | /*
* Misc. global variables.
*/
.data
GLOBAL(mmutype)
.long MMU_68040 | default to MMU_68040
GLOBAL(cputype)
.long CPU_68040 | default to CPU_68040 | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 77232dcadc6b560bf38f2f6d53d5fd087a321d0c | github | kernel | https://github.com/NetBSD/src/blob/77232dcadc6b560bf38f2f6d53d5fd087a321d0c/sys/arch/virt68k/virt68k/locore.s | 241 | 251 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:5 | movl %d0, %d7
/* NOTE: %d7 is now off-limits!! */
/*
* Enable the MMU.
* Since the kernel is mapped logical == physical, there is no prep
* work to do.
*/
#include <m68k/m68k/mmu_enable.s>
/*
* Should be running mapped from this point on
*/
Lmmuenabled:
lea _ASM_LABEL(tmpstk),%sp | re-load the temporary stac... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | f2ce59a6d8d16200463f724551c08168384da7b8 | github | kernel | https://github.com/NetBSD/src/blob/f2ce59a6d8d16200463f724551c08168384da7b8/sys/arch/virt68k/virt68k/locore.s | 161 | 220 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:6 | * interrupts.
*/
ENTRY_NOPROFILE(intrhand_autovec)
addql #1,_C_LABEL(intr_depth)
INTERRUPT_SAVEREG
jbsr _C_LABEL(intr_dispatch) | call dispatcher
INTERRUPT_RESTOREREG
subql #1,_C_LABEL(intr_depth)
jra _ASM_LABEL(rei) | all done
/*
* Primitives
*/
/*
* Use common m68k process/lwp switch and context save su... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | f2ce59a6d8d16200463f724551c08168384da7b8 | github | kernel | https://github.com/NetBSD/src/blob/f2ce59a6d8d16200463f724551c08168384da7b8/sys/arch/virt68k/virt68k/locore.s | 201 | 252 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:7 | END(paravirt_membar_sync)
/*
* Misc. global variables.
*/
.data
GLOBAL(mmutype)
.long MMU_68040 | default to MMU_68040
GLOBAL(cputype)
.long CPU_68040 | default to CPU_68040 | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | f2ce59a6d8d16200463f724551c08168384da7b8 | github | kernel | https://github.com/NetBSD/src/blob/f2ce59a6d8d16200463f724551c08168384da7b8/sys/arch/virt68k/virt68k/locore.s | 241 | 252 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:5 | movl %d0, %d7
/* NOTE: %d7 is now off-limits!! */
/*
* Enable the MMU.
* Since the kernel is mapped logical == physical, there is no prep
* work to do.
*/
#include <m68k/m68k/mmu_enable.s>
/*
* Should be running mapped from this point on
*/
Lmmuenabled:
lea _ASM_LABEL(tmpstk),%sp | re-load the temporary stac... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | b869970055036e71dacb86bebad49c6f626c6fb9 | github | kernel | https://github.com/NetBSD/src/blob/b869970055036e71dacb86bebad49c6f626c6fb9/sys/arch/virt68k/virt68k/locore.s | 161 | 220 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:6 | moveq #T_TRACE,%d0
| Check PSW and see what happen.
| T=0 S=0 (should not happen)
| T=1 S=0 trace trap from user mode
| T=0 S=1 trace trap on a trap instruction
| T=1 S=1 trace trap from system mode (kernel breakpoint)
movw %sp@(FR_HW),%d1 | get PSW
notw %d1 | XXX no support for T0 on 680[234]0
and... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | b869970055036e71dacb86bebad49c6f626c6fb9 | github | kernel | https://github.com/NetBSD/src/blob/b869970055036e71dacb86bebad49c6f626c6fb9/sys/arch/virt68k/virt68k/locore.s | 201 | 260 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:7 | jls Lbrkpt2 | already on tmpstk
| Copy frame to the temporary stack
movl %sp,%a0 | a0=src
lea _ASM_LABEL(tmpstk)-96,%a1 | a1=dst
movl %a1,%sp | sp=new frame
movql #FR_SIZE,%d1
Lbrkpt1:
movl %a0@+,%a1@+
subql #4,%d1
jbgt Lbrkpt1
Lbrkpt2:
| Call the trap handler for the kernel debugger.
| Do not call tra... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | b869970055036e71dacb86bebad49c6f626c6fb9 | github | kernel | https://github.com/NetBSD/src/blob/b869970055036e71dacb86bebad49c6f626c6fb9/sys/arch/virt68k/virt68k/locore.s | 241 | 300 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:8 | | data below it modified (by kgdb push call),
| so push the hardware frame at the current sp
| before restoring registers and returning.
movl %sp@(FR_SP),%a0 | modified sp
lea %sp@(FR_SIZE),%a1 | end of our frame
movl %a1@-,%a0@- | copy 2 longs with
movl %a1@-,%a0@- | ... predecrement
movl %a0,%sp@(FR_SP) |... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | b869970055036e71dacb86bebad49c6f626c6fb9 | github | kernel | https://github.com/NetBSD/src/blob/b869970055036e71dacb86bebad49c6f626c6fb9/sys/arch/virt68k/virt68k/locore.s | 281 | 340 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:9 | ENTRY(paravirt_membar_sync)
/*
* Store-before-load ordering with respect to matching logic
* on the hypervisor side.
*
* This is the same as membar_sync, but guaranteed never to be
* conditionalized or hotpatched away even on uniprocessor
* builds and boots -- because under virtualization, we still
* hav... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | b869970055036e71dacb86bebad49c6f626c6fb9 | github | kernel | https://github.com/NetBSD/src/blob/b869970055036e71dacb86bebad49c6f626c6fb9/sys/arch/virt68k/virt68k/locore.s | 321 | 352 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:5 | movl %d0, %d7
/* NOTE: %d7 is now off-limits!! */
/*
* Enable the MMU.
* Since the kernel is mapped logical == physical, there is no prep
* work to do.
*/
#include <m68k/m68k/mmu_enable.s>
/*
* Should be running mapped from this point on
*/
Lmmuenabled:
lea _ASM_LABEL(tmpstk),%sp | re-load the temporary stac... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 6de54b5f0e773667a6a453f9ed496e1573fb4b0c | github | kernel | https://github.com/NetBSD/src/blob/6de54b5f0e773667a6a453f9ed496e1573fb4b0c/sys/arch/virt68k/virt68k/locore.s | 161 | 220 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:6 | */
/*
* Trace (single-step) trap. Kernel-mode is special.
* User mode traps are simply passed on to trap().
*/
ENTRY_NOPROFILE(trace)
clrl %sp@- | stack adjust count
moveml #0xFFFF,%sp@-
moveq #T_TRACE,%d0
| Check PSW and see what happen.
| T=0 S=0 (should not happen)
| T=1 S=0 trace trap from user mo... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 6de54b5f0e773667a6a453f9ed496e1573fb4b0c | github | kernel | https://github.com/NetBSD/src/blob/6de54b5f0e773667a6a453f9ed496e1573fb4b0c/sys/arch/virt68k/virt68k/locore.s | 201 | 260 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:7 | | Save the system sp rather than the user sp.
movw #PSL_HIGHIPL,%sr | lock out interrupts
lea %sp@(FR_SIZE),%a6 | Save stack pointer
movl %a6,%sp@(FR_SP) | from before trap
| If were are not on tmpstk switch to it.
| (so debugger can change the stack pointer)
movl %a6,%d1
cmpl #_ASM_LABEL(tmpstk),%d1
jls Lbr... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 6de54b5f0e773667a6a453f9ed496e1573fb4b0c | github | kernel | https://github.com/NetBSD/src/blob/6de54b5f0e773667a6a453f9ed496e1573fb4b0c/sys/arch/virt68k/virt68k/locore.s | 241 | 300 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:8 | | Let DDB handle it
movl %a2,%sp@- | push frame ptr
movl %d2,%sp@- | push trap type
jbsr _C_LABEL(kdb_trap) | handle the trap
addql #8,%sp | pop args
#endif
/* Sun 3 drops into PROM here. */
Lbrkpt3:
| The stack pointer may have been modified, or
| data below it modified (by kgdb push call),
| so push the h... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 6de54b5f0e773667a6a453f9ed496e1573fb4b0c | github | kernel | https://github.com/NetBSD/src/blob/6de54b5f0e773667a6a453f9ed496e1573fb4b0c/sys/arch/virt68k/virt68k/locore.s | 281 | 340 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:9 | /*
* Primitives
*/
/*
* Use common m68k process/lwp switch and context save subroutines.
*/
#define FPCOPROC /* XXX: Temp. Reqd. */
#include <m68k/m68k/switch_subr.s>
ENTRY(paravirt_membar_sync)
/*
* Store-before-load ordering with respect to matching logic
* on the hypervisor side.
*
* This is the same ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 6de54b5f0e773667a6a453f9ed496e1573fb4b0c | github | kernel | https://github.com/NetBSD/src/blob/6de54b5f0e773667a6a453f9ed496e1573fb4b0c/sys/arch/virt68k/virt68k/locore.s | 321 | 361 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:8 | | Let DDB handle it
movl %a2,%sp@- | push frame ptr
movl %d2,%sp@- | push trap type
jbsr _C_LABEL(kdb_trap) | handle the trap
addql #8,%sp | pop args
#endif
/* Sun 3 drops into PROM here. */
Lbrkpt3:
| The stack pointer may have been modified, or
| data below it modified (by kgdb push call),
| so push the h... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 579bea99f8d7b146dccdb8ef94846e9e8fa5b579 | github | kernel | https://github.com/NetBSD/src/blob/579bea99f8d7b146dccdb8ef94846e9e8fa5b579/sys/arch/virt68k/virt68k/locore.s | 281 | 340 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:9 | /*
* Primitives
*/
/*
* Use common m68k process/lwp switch and context save subroutines.
*/
#define FPCOPROC /* XXX: Temp. Reqd. */
#include <m68k/m68k/switch_subr.s>
ENTRY(ecacheon)
rts
ENTRY(ecacheoff)
rts
ENTRY(paravirt_membar_sync)
/*
* Store-before-load ordering with respect to matching logic
* on t... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 579bea99f8d7b146dccdb8ef94846e9e8fa5b579 | github | kernel | https://github.com/NetBSD/src/blob/579bea99f8d7b146dccdb8ef94846e9e8fa5b579/sys/arch/virt68k/virt68k/locore.s | 321 | 367 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:5 | movl %d0, %d7
/* NOTE: %d7 is now off-limits!! */
/*
* Enable the MMU.
* Since the kernel is mapped logical == physical, there is no prep
* work to do.
*/
#include <m68k/m68k/mmu_enable.s>
/*
* Should be running mapped from this point on
*/
Lmmuenabled:
lea _ASM_LABEL(tmpstk),%sp | re-load the temporary stac... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 9d6419c4da166ebe3d3e638bde0d125bc8f7499c | github | kernel | https://github.com/NetBSD/src/blob/9d6419c4da166ebe3d3e638bde0d125bc8f7499c/sys/arch/virt68k/virt68k/locore.s | 161 | 220 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:6 | /*
* Trace (single-step) trap. Kernel-mode is special.
* User mode traps are simply passed on to trap().
*/
ENTRY_NOPROFILE(trace)
clrl %sp@- | stack adjust count
moveml #0xFFFF,%sp@-
moveq #T_TRACE,%d0
| Check PSW and see what happen.
| T=0 S=0 (should not happen)
| T=1 S=0 trace trap from user mode
... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 9d6419c4da166ebe3d3e638bde0d125bc8f7499c | github | kernel | https://github.com/NetBSD/src/blob/9d6419c4da166ebe3d3e638bde0d125bc8f7499c/sys/arch/virt68k/virt68k/locore.s | 201 | 260 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:7 | movw #PSL_HIGHIPL,%sr | lock out interrupts
lea %sp@(FR_SIZE),%a6 | Save stack pointer
movl %a6,%sp@(FR_SP) | from before trap
| If were are not on tmpstk switch to it.
| (so debugger can change the stack pointer)
movl %a6,%d1
cmpl #_ASM_LABEL(tmpstk),%d1
jls Lbrkpt2 | already on tmpstk
| Copy frame to the... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 9d6419c4da166ebe3d3e638bde0d125bc8f7499c | github | kernel | https://github.com/NetBSD/src/blob/9d6419c4da166ebe3d3e638bde0d125bc8f7499c/sys/arch/virt68k/virt68k/locore.s | 241 | 300 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:8 | movl %a2,%sp@- | push frame ptr
movl %d2,%sp@- | push trap type
jbsr _C_LABEL(kdb_trap) | handle the trap
addql #8,%sp | pop args
#endif
/* Sun 3 drops into PROM here. */
Lbrkpt3:
| The stack pointer may have been modified, or
| data below it modified (by kgdb push call),
| so push the hardware frame at the ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 9d6419c4da166ebe3d3e638bde0d125bc8f7499c | github | kernel | https://github.com/NetBSD/src/blob/9d6419c4da166ebe3d3e638bde0d125bc8f7499c/sys/arch/virt68k/virt68k/locore.s | 281 | 340 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:9 | * Primitives
*/
/*
* Use common m68k process/lwp switch and context save subroutines.
*/
#define FPCOPROC /* XXX: Temp. Reqd. */
#include <m68k/m68k/switch_subr.s>
ENTRY(ecacheon)
rts
ENTRY(ecacheoff)
rts
ENTRY(paravirt_membar_sync)
/*
* Store-before-load ordering with respect to matching logic
* on the h... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 9d6419c4da166ebe3d3e638bde0d125bc8f7499c | github | kernel | https://github.com/NetBSD/src/blob/9d6419c4da166ebe3d3e638bde0d125bc8f7499c/sys/arch/virt68k/virt68k/locore.s | 321 | 366 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:9 | * Primitives
*/
/*
* Use common m68k process/lwp switch and context save subroutines.
*/
#define FPCOPROC /* XXX: Temp. Reqd. */
#include <m68k/m68k/switch_subr.s>
ENTRY(ecacheon)
rts
ENTRY(ecacheoff)
rts
ENTRY(paravirt_membar_sync)
/*
* Store-before-load ordering with respect to matching logic
* on the h... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 9221125ecc4095caa14fffa7bba29a43c94152a4 | github | kernel | https://github.com/NetBSD/src/blob/9221125ecc4095caa14fffa7bba29a43c94152a4/sys/arch/virt68k/virt68k/locore.s | 321 | 366 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:5 | movl %d0, %d7
/* NOTE: %d7 is now off-limits!! */
/*
* Enable the MMU.
* Since the kernel is mapped logical == physical, there is no prep
* work to do.
*/
#include <m68k/m68k/mmu_enable.s>
/*
* Should be running mapped from this point on
*/
Lmmuenabled:
lea _ASM_LABEL(tmpstk),%sp | re-load the temporary stac... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | a8a4cf49bbdcc74016a411ab0f760cbb376f0def | github | kernel | https://github.com/NetBSD/src/blob/a8a4cf49bbdcc74016a411ab0f760cbb376f0def/sys/arch/virt68k/virt68k/locore.s | 161 | 220 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:6 | /*
* Other exceptions only cause four and six word stack frame and require
* no post-trap stack adjustment.
*/
/*
* Trace (single-step) trap. Kernel-mode is special.
* User mode traps are simply passed on to trap().
*/
ENTRY_NOPROFILE(trace)
clrl %sp@- | stack adjust count
moveml #0xFFFF,%sp@-
moveq #T_TRA... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | a8a4cf49bbdcc74016a411ab0f760cbb376f0def | github | kernel | https://github.com/NetBSD/src/blob/a8a4cf49bbdcc74016a411ab0f760cbb376f0def/sys/arch/virt68k/virt68k/locore.s | 201 | 260 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:7 | jra _ASM_LABEL(fault) | no, user-mode fault
Lkbrkpt: | Kernel-mode breakpoint or trace trap. (d0=trap_type)
| Save the system sp rather than the user sp.
movw #PSL_HIGHIPL,%sr | lock out interrupts
lea %sp@(FR_SIZE),%a6 | Save stack pointer
movl %a6,%sp@(FR_SP) | from before trap
| If were are not on tmpstk sw... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | a8a4cf49bbdcc74016a411ab0f760cbb376f0def | github | kernel | https://github.com/NetBSD/src/blob/a8a4cf49bbdcc74016a411ab0f760cbb376f0def/sys/arch/virt68k/virt68k/locore.s | 241 | 300 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:8 | jne Lbrkpt3 | yes, done
#endif
#ifdef DDB
| Let DDB handle it
movl %a2,%sp@- | push frame ptr
movl %d2,%sp@- | push trap type
jbsr _C_LABEL(kdb_trap) | handle the trap
addql #8,%sp | pop args
#endif
/* Sun 3 drops into PROM here. */
Lbrkpt3:
| The stack pointer may have been modified, or
| data below it m... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | a8a4cf49bbdcc74016a411ab0f760cbb376f0def | github | kernel | https://github.com/NetBSD/src/blob/a8a4cf49bbdcc74016a411ab0f760cbb376f0def/sys/arch/virt68k/virt68k/locore.s | 281 | 340 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:9 | subql #1,_C_LABEL(intr_depth)
jra _ASM_LABEL(rei) | all done
/*
* Primitives
*/
/*
* Use common m68k process/lwp switch and context save subroutines.
*/
#define FPCOPROC /* XXX: Temp. Reqd. */
#include <m68k/m68k/switch_subr.s>
ENTRY(ecacheon)
rts
ENTRY(ecacheoff)
rts
ENTRY(paravirt_membar_sync)
/*
* St... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | a8a4cf49bbdcc74016a411ab0f760cbb376f0def | github | kernel | https://github.com/NetBSD/src/blob/a8a4cf49bbdcc74016a411ab0f760cbb376f0def/sys/arch/virt68k/virt68k/locore.s | 321 | 370 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:4 | ASRELOC(tmpstk, %a0)
movl %a0,%sp | give ourselves a temporary stack
RELOC(edata,%a0) | clear out BSS
movl #_C_LABEL(end) - 4, %d0 | (must be <= 256 kB)
subl #_C_LABEL(edata), %d0
lsrl #2,%d0
1: clrl %a0@+
dbra %d0,1b
/*
* Qemu does not pass us the symbols, so leave esym alone.
* The bootinfo immediatel... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 84717b5c0311acf99ccc154c3714194745354b43 | github | kernel | https://github.com/NetBSD/src/blob/84717b5c0311acf99ccc154c3714194745354b43/sys/arch/virt68k/virt68k/locore.s | 121 | 180 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:5 | movl %d0, %d7
/* NOTE: %d7 is now off-limits!! */
/*
* Enable the MMU.
* Since the kernel is mapped logical == physical, there is no prep
* work to do.
*/
#include <m68k/m68k/mmu_enable.s>
/*
* Should be running mapped from this point on
*/
Lmmuenabled:
lea _ASM_LABEL(tmpstk),%sp | re-load the temporary stac... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 84717b5c0311acf99ccc154c3714194745354b43 | github | kernel | https://github.com/NetBSD/src/blob/84717b5c0311acf99ccc154c3714194745354b43/sys/arch/virt68k/virt68k/locore.s | 161 | 220 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:6 | * later on.
*/
clrw %sp@- | vector offset/frame type
clrl %sp@- | PC - filled in by "execve"
movw #PSL_USER,%sp@- | in user mode
clrl %sp@- | stack adjust count and padding
lea %sp@(-64),%sp | construct space for D0-D7/A0-A7
lea _C_LABEL(lwp0),%a0 | save pointer to frame
movl %sp,%a0@(L_MD_REGS) | in ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 84717b5c0311acf99ccc154c3714194745354b43 | github | kernel | https://github.com/NetBSD/src/blob/84717b5c0311acf99ccc154c3714194745354b43/sys/arch/virt68k/virt68k/locore.s | 201 | 260 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:7 | * - GDB breakpoints (in user programs)
* - KGDB breakpoints (in the kernel)
* - trace traps for SUN binaries (not fully supported yet)
* User mode traps are simply passed to trap().
*/
ENTRY_NOPROFILE(trap15)
clrl %sp@- | stack adjust count
moveml #0xFFFF,%sp@-
moveq #T_TRAP15,%d0
movw %sp@(FR_HW),%d1 | get ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 84717b5c0311acf99ccc154c3714194745354b43 | github | kernel | https://github.com/NetBSD/src/blob/84717b5c0311acf99ccc154c3714194745354b43/sys/arch/virt68k/virt68k/locore.s | 241 | 300 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:8 | | If we have both DDB and KGDB, let KGDB see it first,
| because KGDB will just return 0 if not connected.
| Save args in d2, a2
movl %d0,%d2 | trap type
movl %sp,%a2 | frame ptr
#ifdef KGDB
| Let KGDB handle it (if connected)
movl %a2,%sp@- | push frame ptr
movl %d2,%sp@- | push trap type
jbsr _C_LABEL(k... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 84717b5c0311acf99ccc154c3714194745354b43 | github | kernel | https://github.com/NetBSD/src/blob/84717b5c0311acf99ccc154c3714194745354b43/sys/arch/virt68k/virt68k/locore.s | 281 | 340 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:9 | * For auto-vectored interrupts, the CPU provides the
* vector 0x18+level.
*
* intrhand_autovec is the entry point for auto-vectored
* interrupts.
*/
ENTRY_NOPROFILE(intrhand_autovec)
addql #1,_C_LABEL(intr_depth)
INTERRUPT_SAVEREG
jbsr _C_LABEL(intr_dispatch) | call dispatcher
INTERRUPT_RESTOREREG
subql #1,_... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 84717b5c0311acf99ccc154c3714194745354b43 | github | kernel | https://github.com/NetBSD/src/blob/84717b5c0311acf99ccc154c3714194745354b43/sys/arch/virt68k/virt68k/locore.s | 321 | 380 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:10 | * that is potentially on another physical CPU even if we
* observe only one virtual CPU as the guest.
*
* I don't see an obvious ordering-only instruction in the m68k
* instruction set, but qemu implements CAS with
* store-before-load ordering, so this should work for virtio.
*/
clrl %d0
casl %d0,%d0,%sp@... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | 84717b5c0311acf99ccc154c3714194745354b43 | github | kernel | https://github.com/NetBSD/src/blob/84717b5c0311acf99ccc154c3714194745354b43/sys/arch/virt68k/virt68k/locore.s | 361 | 382 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:9 | * For auto-vectored interrupts, the CPU provides the
* vector 0x18+level.
*
* intrhand_autovec is the entry point for auto-vectored
* interrupts.
*/
ENTRY_NOPROFILE(intrhand_autovec)
addql #1,_C_LABEL(intr_depth)
INTERRUPT_SAVEREG
jbsr _C_LABEL(intr_dispatch) | call dispatcher
INTERRUPT_RESTOREREG
subql #1,_... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | a39353bf6b628008801a75f2010c6a02115acde7 | github | kernel | https://github.com/NetBSD/src/blob/a39353bf6b628008801a75f2010c6a02115acde7/sys/arch/virt68k/virt68k/locore.s | 321 | 380 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:10 | movl %a1@+,%d0 | get lword
movsl %d0,%a0@+ | put lword
nop | sync
moveq #0,%d0 | indicate no fault
jra Lsldone
Lslerr:
moveq #-1,%d0
Lsldone:
movl _C_LABEL(curpcb),%a1 | current pcb
clrl %a1@(PCB_ONFAULT) | clear fault address
rts
#endif
ENTRY(ecacheon)
rts
ENTRY(ecacheoff)
rts
ENTRY(paravirt_memba... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | a39353bf6b628008801a75f2010c6a02115acde7 | github | kernel | https://github.com/NetBSD/src/blob/a39353bf6b628008801a75f2010c6a02115acde7/sys/arch/virt68k/virt68k/locore.s | 361 | 411 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:5 | movl %d0, %d7
/* NOTE: %d7 is now off-limits!! */
/*
* Enable the MMU.
* Since the kernel is mapped logical == physical, there is no prep
* work to do.
*/
#include <m68k/m68k/mmu_enable.s>
/*
* Should be running mapped from this point on
*/
Lmmuenabled:
lea _ASM_LABEL(tmpstk),%sp | re-load the temporary stac... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | e4d072bbebc4aede06e5d2f12fe49a506e655806 | github | kernel | https://github.com/NetBSD/src/blob/e4d072bbebc4aede06e5d2f12fe49a506e655806/sys/arch/virt68k/virt68k/locore.s | 161 | 220 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:6 | /* final setup for C code */
movl %d7,%sp@- | push nextpa saved above
jbsr _C_LABEL(machine_init) | additional pre-main initialization
addql #4,%sp
/*
* Create a fake exception frame so that cpu_lwp_fork() can copy it.
* main() nevers returns; we exit to user mode from a forked process
* later on.
*/
clrw %sp@... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | e4d072bbebc4aede06e5d2f12fe49a506e655806 | github | kernel | https://github.com/NetBSD/src/blob/e4d072bbebc4aede06e5d2f12fe49a506e655806/sys/arch/virt68k/virt68k/locore.s | 201 | 260 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:7 | ENTRY_NOPROFILE(fpunsupp)
#if defined(M68040)
cmpl #FPU_68040,_C_LABEL(fputype) | 68040 FPU?
jne Lfp_unsupp | No, skip FPSP
#ifdef FPSP
jmp _ASM_LABEL(fpsp_unsupp) | yes, go handle it
#else
clrl %sp@- | stack adjust count
moveml #0xFFFF,%sp@- | save registers
moveq #T_FPEMULD,%d0 | denote as FP emulation tra... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | e4d072bbebc4aede06e5d2f12fe49a506e655806 | github | kernel | https://github.com/NetBSD/src/blob/e4d072bbebc4aede06e5d2f12fe49a506e655806/sys/arch/virt68k/virt68k/locore.s | 241 | 300 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:8 | bset #3,%a0@(0,%d0:w) | set exc_pend bit of BIU
Lfptnull:
fmovem %fpsr,%sp@- | push fpsr as code argument
frestore %a0@ | restore state
movl #T_FPERR,%sp@- | push type arg
jra _ASM_LABEL(faultstkadj) | call trap and deal with stack cleanup
/*
* Other exceptions only cause four and six word stack frame and requi... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | e4d072bbebc4aede06e5d2f12fe49a506e655806 | github | kernel | https://github.com/NetBSD/src/blob/e4d072bbebc4aede06e5d2f12fe49a506e655806/sys/arch/virt68k/virt68k/locore.s | 281 | 340 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:9 | */
ENTRY_NOPROFILE(trap15)
clrl %sp@- | stack adjust count
moveml #0xFFFF,%sp@-
moveq #T_TRAP15,%d0
movw %sp@(FR_HW),%d1 | get PSW
andw #PSL_S,%d1 | from system mode?
jne Lkbrkpt | yes, kernel breakpoint
jra _ASM_LABEL(fault) | no, user-mode fault
Lkbrkpt: | Kernel-mode breakpoint or trace trap. (d0=trap_... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | e4d072bbebc4aede06e5d2f12fe49a506e655806 | github | kernel | https://github.com/NetBSD/src/blob/e4d072bbebc4aede06e5d2f12fe49a506e655806/sys/arch/virt68k/virt68k/locore.s | 321 | 380 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:10 | movl %sp,%a2 | frame ptr
#ifdef KGDB
| Let KGDB handle it (if connected)
movl %a2,%sp@- | push frame ptr
movl %d2,%sp@- | push trap type
jbsr _C_LABEL(kgdb_trap) | handle the trap
addql #8,%sp | pop args
cmpl #0,%d0 | did kgdb handle it?
jne Lbrkpt3 | yes, done
#endif
#ifdef DDB
| Let DDB handle it
m... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | e4d072bbebc4aede06e5d2f12fe49a506e655806 | github | kernel | https://github.com/NetBSD/src/blob/e4d072bbebc4aede06e5d2f12fe49a506e655806/sys/arch/virt68k/virt68k/locore.s | 361 | 420 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:11 | * interrupts.
*/
ENTRY_NOPROFILE(intrhand_autovec)
addql #1,_C_LABEL(intr_depth)
INTERRUPT_SAVEREG
jbsr _C_LABEL(intr_dispatch) | call dispatcher
INTERRUPT_RESTOREREG
subql #1,_C_LABEL(intr_depth)
jra _ASM_LABEL(rei) | all done
/*
* Primitives
*/
/*
* Use common m68k process/lwp switch and context save su... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | e4d072bbebc4aede06e5d2f12fe49a506e655806 | github | kernel | https://github.com/NetBSD/src/blob/e4d072bbebc4aede06e5d2f12fe49a506e655806/sys/arch/virt68k/virt68k/locore.s | 401 | 460 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:12 | jra Lsldone
Lslerr:
moveq #-1,%d0
Lsldone:
movl _C_LABEL(curpcb),%a1 | current pcb
clrl %a1@(PCB_ONFAULT) | clear fault address
rts
#endif
ENTRY(ecacheon)
rts
ENTRY(ecacheoff)
rts
ENTRY(paravirt_membar_sync)
/*
* Store-before-load ordering with respect to matching logic
* on the hypervisor side.
*
* ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | e4d072bbebc4aede06e5d2f12fe49a506e655806 | github | kernel | https://github.com/NetBSD/src/blob/e4d072bbebc4aede06e5d2f12fe49a506e655806/sys/arch/virt68k/virt68k/locore.s | 441 | 490 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:13 | .data
GLOBAL(mmutype)
.long MMU_68040 | default to MMU_68040
GLOBAL(cputype)
.long CPU_68040 | default to CPU_68040
GLOBAL(fputype)
.long FPU_68040 | default to FPU_68040 | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | e4d072bbebc4aede06e5d2f12fe49a506e655806 | github | kernel | https://github.com/NetBSD/src/blob/e4d072bbebc4aede06e5d2f12fe49a506e655806/sys/arch/virt68k/virt68k/locore.s | 481 | 490 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:7 | ENTRY_NOPROFILE(fpunsupp)
#if defined(M68040)
cmpl #FPU_68040,_C_LABEL(fputype) | 68040 FPU?
jne Lfp_unsupp | No, skip FPSP
#ifdef FPSP
jmp _ASM_LABEL(fpsp_unsupp) | yes, go handle it
#else
clrl %sp@- | stack adjust count
moveml #0xFFFF,%sp@- | save registers
moveq #T_FPEMULD,%d0 | denote as FP emulation tra... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | d7b3090516af177c5278a3cb2afae3e973c80bbe | github | kernel | https://github.com/NetBSD/src/blob/d7b3090516af177c5278a3cb2afae3e973c80bbe/sys/arch/virt68k/virt68k/locore.s | 241 | 300 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:8 | bset #3,%a0@(0,%d0:w) | set exc_pend bit of BIU
Lfptnull:
fmovem %fpsr,%sp@- | push fpsr as code argument
frestore %a0@ | restore state
movl #T_FPERR,%sp@- | push type arg
jra _ASM_LABEL(faultstkadj) | call trap and deal with stack cleanup
/*
* Other exceptions only cause four and six word stack frame and requi... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | d7b3090516af177c5278a3cb2afae3e973c80bbe | github | kernel | https://github.com/NetBSD/src/blob/d7b3090516af177c5278a3cb2afae3e973c80bbe/sys/arch/virt68k/virt68k/locore.s | 281 | 340 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:9 | | T=0 S=1 trace trap on a trap instruction
| T=1 S=1 trace trap from system mode (kernel breakpoint)
movw %sp@(FR_HW),%d1 | get PSW
notw %d1 | XXX no support for T0 on 680[234]0
andw #PSL_TS,%d1 | from system mode (T=1, S=1)?
jeq Lkbrkpt | yes, kernel breakpoint
jra _ASM_LABEL(fault) | no, user-mode fa... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | d7b3090516af177c5278a3cb2afae3e973c80bbe | github | kernel | https://github.com/NetBSD/src/blob/d7b3090516af177c5278a3cb2afae3e973c80bbe/sys/arch/virt68k/virt68k/locore.s | 321 | 380 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:10 | movql #FR_SIZE,%d1
Lbrkpt1:
movl %a0@+,%a1@+
subql #4,%d1
jbgt Lbrkpt1
Lbrkpt2:
| Call the trap handler for the kernel debugger.
| Do not call trap() to do it, so that we can
| set breakpoints in trap() if we want. We know
| the trap type is either T_TRACE or T_BREAKPOINT.
| If we have both DDB and KGDB, let ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | d7b3090516af177c5278a3cb2afae3e973c80bbe | github | kernel | https://github.com/NetBSD/src/blob/d7b3090516af177c5278a3cb2afae3e973c80bbe/sys/arch/virt68k/virt68k/locore.s | 361 | 420 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:11 | lea %sp@(FR_SIZE),%a1 | end of our frame
movl %a1@-,%a0@- | copy 2 longs with
movl %a1@-,%a0@- | ... predecrement
movl %a0,%sp@(FR_SP) | sp = h/w frame
moveml %sp@+,#0x7FFF | restore all but sp
movl %sp@,%sp | ... and sp
rte | all done
/*
* Interrupt handlers.
*
* For auto-vectored interrupts, the CPU... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | d7b3090516af177c5278a3cb2afae3e973c80bbe | github | kernel | https://github.com/NetBSD/src/blob/d7b3090516af177c5278a3cb2afae3e973c80bbe/sys/arch/virt68k/virt68k/locore.s | 401 | 460 |
NetBSD/src:sys/arch/virt68k/virt68k/locore.s:12 | movl #Lslerr,%a1@(PCB_ONFAULT) | where to return to on a fault
movl %sp@(8),%a1 | address of line
movl %a1@+,%d0 | get lword
movsl %d0,%a0@+ | put lword
nop | sync
movl %a1@+,%d0 | get lword
movsl %d0,%a0@+ | put lword
nop | sync
movl %a1@+,%d0 | get lword
movsl %d0,%a0@+ | put lword
nop | syn... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/virt68k/virt68k/locore.s | BSD-2-Clause | d7b3090516af177c5278a3cb2afae3e973c80bbe | github | kernel | https://github.com/NetBSD/src/blob/d7b3090516af177c5278a3cb2afae3e973c80bbe/sys/arch/virt68k/virt68k/locore.s | 441 | 500 |
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