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NetBSD/src:sys/arch/sun3/sun3/locore.s:9 | * which should be set based on the CPU clock rate.
* XXX: Currently this is set based on the CPU model,
* XXX: but this should be determined at run time...
*/
GLOBAL(_delay)
| %d0 = arg = (usecs << 8)
movl %sp@(4),%d0
| %d1 = delay_divisor;
movl _C_LABEL(delay_divisor),%d1
jra L_delay /* Jump into the loop! *... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 74159c5b65be4f5b7abf2b9c3bdbc4f7b0dddcf5 | github | kernel | https://github.com/NetBSD/src/blob/74159c5b65be4f5b7abf2b9c3bdbc4f7b0dddcf5/sys/arch/sun3/sun3/locore.s | 321 | 380 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:4 | L_per_pmeg:
movsb %a0@,%d1 | copy segmap entry
movsb %d1,%a1@
addl #NBSG,%a0 | increment pointers
addl #NBSG,%a1
subql #1,%d0 | decrement count
bgt L_per_pmeg
| Kernel is now double mapped at zero and KERNBASE.
| Force a long jump to the relocated code (high VA).
movl #IC_CLEAR,%d0 | Flush the I-cache
mov... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 0e9f528cd1d385d284b40217066690e8f6089104 | github | kernel | https://github.com/NetBSD/src/blob/0e9f528cd1d385d284b40217066690e8f6089104/sys/arch/sun3/sun3/locore.s | 121 | 180 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:5 | | Will do fpu initialization during autoconfig (see fpu.c)
| The interrupt vector table and stack are now ready.
| Interrupts will be enabled later, AFTER autoconfiguration
| is finished, to avoid spurrious interrupts.
/*
* Create a fake exception frame so that cpu_lwp_fork() can copy it.
* main() nevers returns; w... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 0e9f528cd1d385d284b40217066690e8f6089104 | github | kernel | https://github.com/NetBSD/src/blob/0e9f528cd1d385d284b40217066690e8f6089104/sys/arch/sun3/sun3/locore.s | 161 | 220 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:6 | | 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 _ASM_LABEL(kbrkpt) | yes, kernel brkpt
jra _ASM_LABEL(fault) | no, user-mode fault
/*
* Trap 15 is used for:
* - GDB ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 0e9f528cd1d385d284b40217066690e8f6089104 | github | kernel | https://github.com/NetBSD/src/blob/0e9f528cd1d385d284b40217066690e8f6089104/sys/arch/sun3/sun3/locore.s | 201 | 260 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:7 | Lbrkpt1:
movl %a0@+,%a1@+
subql #4,%d1
bgt Lbrkpt1
Lbrkpt2:
| Call the trap handler for the kernel debugger.
| Do not call trap() to handle it, so that we can
| set breakpoints in trap() if we want. We know
| the trap type is either T_TRACE or T_BREAKPOINT.
movl %d0,%sp@- | push trap type
jbsr _C_LABEL(trap... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 0e9f528cd1d385d284b40217066690e8f6089104 | github | kernel | https://github.com/NetBSD/src/blob/0e9f528cd1d385d284b40217066690e8f6089104/sys/arch/sun3/sun3/locore.s | 241 | 300 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:8 | GLOBAL(_isr_clock)
INTERRUPT_SAVEREG
jbsr _C_LABEL(clock_intr)
INTERRUPT_RESTOREREG
jra _ASM_LABEL(rei)
/*
* Initialization is at the beginning of this file, because the
* kernel entry point needs to be at zero for compatibility with
* the Sun boot loader. This works on Sun machines because the
* interrupt ve... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 0e9f528cd1d385d284b40217066690e8f6089104 | github | kernel | https://github.com/NetBSD/src/blob/0e9f528cd1d385d284b40217066690e8f6089104/sys/arch/sun3/sun3/locore.s | 281 | 340 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:9 | ENTRY(DCIU)
rts
/* ICPL, ICPP, DCPL, DCPP, DCPA, DCFL, DCFP */
/* PCIA, ecacheon, ecacheoff */
/* loadustp, ptest_addr */
/*
* _delay(unsigned N)
* Delay for at least (N/256) microseconds.
* This routine depends on the variable: delay_divisor
* which should be set based on the CPU clock rate.
* XXX: Currently... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 0e9f528cd1d385d284b40217066690e8f6089104 | github | kernel | https://github.com/NetBSD/src/blob/0e9f528cd1d385d284b40217066690e8f6089104/sys/arch/sun3/sun3/locore.s | 321 | 380 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:10 | /*
* void set_segmap_allctx(vaddr_t va, int sme)
*/
ENTRY(set_segmap_allctx)
linkw %fp,#0
moveml #0x3000,%sp@-
movl 8(%fp),%d3 | d3 = va
andl #0xffffffc,%d3
bset #29,%d3
movl %d3,%a1 | a1 = ctrladdr, d3 avail
movl 12(%fp),%d1 | d1 = sme
moveq #FC_CONTROL,%d0
movl #CONTEXT_REG,%a0 | a0 = ctxreg
movc %sfc... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 0e9f528cd1d385d284b40217066690e8f6089104 | github | kernel | https://github.com/NetBSD/src/blob/0e9f528cd1d385d284b40217066690e8f6089104/sys/arch/sun3/sun3/locore.s | 361 | 401 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:4 | L_per_pmeg:
movsb %a0@,%d1 | copy segmap entry
movsb %d1,%a1@
addl #NBSG,%a0 | increment pointers
addl #NBSG,%a1
subql #1,%d0 | decrement count
bgt L_per_pmeg
| Kernel is now double mapped at zero and KERNBASE.
| Force a long jump to the relocated code (high VA).
movl #IC_CLEAR,%d0 | Flush the I-cache
mov... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 84717b5c0311acf99ccc154c3714194745354b43 | github | kernel | https://github.com/NetBSD/src/blob/84717b5c0311acf99ccc154c3714194745354b43/sys/arch/sun3/sun3/locore.s | 121 | 180 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:5 | | Will do fpu initialization during autoconfig (see fpu.c)
| The interrupt vector table and stack are now ready.
| Interrupts will be enabled later, AFTER autoconfiguration
| is finished, to avoid spurrious interrupts.
/*
* Create a fake exception frame so that cpu_lwp_fork() can copy it.
* main() nevers returns; w... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 84717b5c0311acf99ccc154c3714194745354b43 | github | kernel | https://github.com/NetBSD/src/blob/84717b5c0311acf99ccc154c3714194745354b43/sys/arch/sun3/sun3/locore.s | 161 | 220 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:8 | GLOBAL(_isr_clock)
INTERRUPT_SAVEREG
jbsr _C_LABEL(clock_intr)
INTERRUPT_RESTOREREG
jra _ASM_LABEL(rei)
/*
* Initialization is at the beginning of this file, because the
* kernel entry point needs to be at zero for compatibility with
* the Sun boot loader. This works on Sun machines because the
* interrupt ve... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | a39353bf6b628008801a75f2010c6a02115acde7 | github | kernel | https://github.com/NetBSD/src/blob/a39353bf6b628008801a75f2010c6a02115acde7/sys/arch/sun3/sun3/locore.s | 281 | 340 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:9 | */
ENTRY(DCIU)
rts
/* ICPL, ICPP, DCPL, DCPP, DCPA, DCFL, DCFP */
/* PCIA, ecacheon, ecacheoff */
/* loadustp, ptest_addr */
/*
* _delay(unsigned N)
* Delay for at least (N/256) microseconds.
* This routine depends on the variable: delay_divisor
* which should be set based on the CPU clock rate.
* XXX: Curren... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | a39353bf6b628008801a75f2010c6a02115acde7 | github | kernel | https://github.com/NetBSD/src/blob/a39353bf6b628008801a75f2010c6a02115acde7/sys/arch/sun3/sun3/locore.s | 321 | 380 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:5 | | Will do fpu initialization during autoconfig (see fpu.c)
| The interrupt vector table and stack are now ready.
| Interrupts will be enabled later, AFTER autoconfiguration
| is finished, to avoid spurrious interrupts.
/*
* Create a fake exception frame so that cpu_lwp_fork() can copy it.
* main() nevers returns; w... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | e4d072bbebc4aede06e5d2f12fe49a506e655806 | github | kernel | https://github.com/NetBSD/src/blob/e4d072bbebc4aede06e5d2f12fe49a506e655806/sys/arch/sun3/sun3/locore.s | 161 | 220 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:6 | * and may cause signal delivery, we need to test for stack adjustment
* after the trap call.
*/
GLOBAL(fpfault)
clrl %sp@- | stack adjust count
moveml #0xFFFF,%sp@- | save user registers
movl %usp,%a0 | and save
movl %a0,%sp@(FR_SP) | the user stack pointer
clrl %sp@- | no VA arg
movl _C_LABEL(curpcb),%a0 |... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | e4d072bbebc4aede06e5d2f12fe49a506e655806 | github | kernel | https://github.com/NetBSD/src/blob/e4d072bbebc4aede06e5d2f12fe49a506e655806/sys/arch/sun3/sun3/locore.s | 201 | 260 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:7 | | 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 _ASM_LABEL(kbrkpt) | yes, kernel brkpt
jra _ASM_LABEL(fault) | no, user-mo... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | e4d072bbebc4aede06e5d2f12fe49a506e655806 | github | kernel | https://github.com/NetBSD/src/blob/e4d072bbebc4aede06e5d2f12fe49a506e655806/sys/arch/sun3/sun3/locore.s | 241 | 300 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:8 | moveq #FR_SIZE,%d1
Lbrkpt1:
movl %a0@+,%a1@+
subql #4,%d1
bgt Lbrkpt1
Lbrkpt2:
| Call the trap handler for the kernel debugger.
| Do not call trap() to handle it, so that we can
| set breakpoints in trap() if we want. We know
| the trap type is either T_TRACE or T_BREAKPOINT.
movl %d0,%sp@- | push trap type
... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | e4d072bbebc4aede06e5d2f12fe49a506e655806 | github | kernel | https://github.com/NetBSD/src/blob/e4d072bbebc4aede06e5d2f12fe49a506e655806/sys/arch/sun3/sun3/locore.s | 281 | 340 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:9 | #endif
GLOBAL(_isr_clock)
INTERRUPT_SAVEREG
jbsr _C_LABEL(clock_intr)
INTERRUPT_RESTOREREG
jra _ASM_LABEL(rei)
/*
* Initialization is at the beginning of this file, because the
* kernel entry point needs to be at zero for compatibility with
* the Sun boot loader. This works on Sun machines because the
* inter... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | e4d072bbebc4aede06e5d2f12fe49a506e655806 | github | kernel | https://github.com/NetBSD/src/blob/e4d072bbebc4aede06e5d2f12fe49a506e655806/sys/arch/sun3/sun3/locore.s | 321 | 380 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:10 | * Invalidate data cache.
*/
ENTRY(DCIU)
rts
/* ICPL, ICPP, DCPL, DCPP, DCPA, DCFL, DCFP */
/* PCIA, ecacheon, ecacheoff */
/* loadustp, ptest_addr */
/*
* _delay(unsigned N)
* Delay for at least (N/256) microseconds.
* This routine depends on the variable: delay_divisor
* which should be set based on the CPU ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | e4d072bbebc4aede06e5d2f12fe49a506e655806 | github | kernel | https://github.com/NetBSD/src/blob/e4d072bbebc4aede06e5d2f12fe49a506e655806/sys/arch/sun3/sun3/locore.s | 361 | 420 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:11 | rts
/*
* void set_segmap_allctx(vaddr_t va, int sme)
*/
ENTRY(set_segmap_allctx)
linkw %fp,#0
moveml #0x3000,%sp@-
movl 8(%fp),%d3 | d3 = va
andl #0xffffffc,%d3
bset #29,%d3
movl %d3,%a1 | a1 = ctrladdr, d3 avail
movl 12(%fp),%d1 | d1 = sme
moveq #FC_CONTROL,%d0
movl #CONTEXT_REG,%a0 | a0 = ctxreg
movc... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | e4d072bbebc4aede06e5d2f12fe49a506e655806 | github | kernel | https://github.com/NetBSD/src/blob/e4d072bbebc4aede06e5d2f12fe49a506e655806/sys/arch/sun3/sun3/locore.s | 401 | 443 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:6 | * and may cause signal delivery, we need to test for stack adjustment
* after the trap call.
*/
GLOBAL(fpfault)
clrl %sp@- | stack adjust count
moveml #0xFFFF,%sp@- | save user registers
movl %usp,%a0 | and save
movl %a0,%sp@(FR_SP) | the user stack pointer
clrl %sp@- | no VA arg
movl _C_LABEL(curpcb),%a0 |... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | d7b3090516af177c5278a3cb2afae3e973c80bbe | github | kernel | https://github.com/NetBSD/src/blob/d7b3090516af177c5278a3cb2afae3e973c80bbe/sys/arch/sun3/sun3/locore.s | 201 | 260 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:7 | lea %sp@(16),%sp | pop args
jra _ASM_LABEL(rei) | all done
/*
* Trace (single-step) trap. Kernel-mode is special.
* User mode traps are simply passed on to trap().
*/
GLOBAL(trace)
clrl %sp@- | stack adjust count
moveml #0xFFFF,%sp@-
moveq #T_TRACE,%d0
| Check PSW and see what happen.
| T=0 S=0 (shoul... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | d7b3090516af177c5278a3cb2afae3e973c80bbe | github | kernel | https://github.com/NetBSD/src/blob/d7b3090516af177c5278a3cb2afae3e973c80bbe/sys/arch/sun3/sun3/locore.s | 241 | 300 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:8 | | 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 we are not on tmpstk switch to it.
| (so debugger can change the stack pointe... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | d7b3090516af177c5278a3cb2afae3e973c80bbe | github | kernel | https://github.com/NetBSD/src/blob/d7b3090516af177c5278a3cb2afae3e973c80bbe/sys/arch/sun3/sun3/locore.s | 281 | 340 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:9 | movl %sp@,%sp | ... and sp
rte | all done
/*
* Interrupt handlers. Most are auto-vectored,
* and hard-wired the same way on all sun3 models.
* Format in the stack is:
* %d0,%d1,%a0,%a1, sr, pc, vo
*/
/* clock: see clock.c */
#ifdef __ELF__
.align 4
#else
.align 2
#endif
GLOBAL(_isr_clock)
INTERRUPT_SA... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | d7b3090516af177c5278a3cb2afae3e973c80bbe | github | kernel | https://github.com/NetBSD/src/blob/d7b3090516af177c5278a3cb2afae3e973c80bbe/sys/arch/sun3/sun3/locore.s | 321 | 380 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:10 | /* suline() */
/* TBIA, TBIS, TBIAS, TBIAU */
/*
* Invalidate instruction cache
*/
ENTRY(ICIA)
movl #IC_CLEAR,%d0
movc %d0,%cacr | invalidate i-cache
rts
/* DCIA, DCIS */
/*
* Invalidate data cache.
*/
ENTRY(DCIU)
rts
/* ICPL, ICPP, DCPL, DCPP, DCPA, DCFL, DCFP */
/* PCIA, ecacheon, ecacheoff */
/* loadus... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | d7b3090516af177c5278a3cb2afae3e973c80bbe | github | kernel | https://github.com/NetBSD/src/blob/d7b3090516af177c5278a3cb2afae3e973c80bbe/sys/arch/sun3/sun3/locore.s | 361 | 420 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:11 | /*
* Align the branch target of the loop to a half-line (8-byte)
* boundary to minimize cache effects. This guarantees both
* that there will be no prefetch stalls due to cache line burst
* operations and that the loop will run from a single cache
* half-line.
*/
#ifdef __ELF__
.align 8
#else
.align 3
#e... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | d7b3090516af177c5278a3cb2afae3e973c80bbe | github | kernel | https://github.com/NetBSD/src/blob/d7b3090516af177c5278a3cb2afae3e973c80bbe/sys/arch/sun3/sun3/locore.s | 401 | 458 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:12 | movsb %d1,%a1@ | set segmap
dbf %d0,1b | loop setting each ctx
movsb %d2,%a0@ | restore ctx
movc %d3,%dfc | restore dfc
moveml %sp@+,#0x000c
unlk %fp
rts
| Define some addresses, mostly so DDB can print useful info.
| Not using _C_LABEL() here because these symbols are never
| referenced by any C code, and ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | d7b3090516af177c5278a3cb2afae3e973c80bbe | github | kernel | https://github.com/NetBSD/src/blob/d7b3090516af177c5278a3cb2afae3e973c80bbe/sys/arch/sun3/sun3/locore.s | 441 | 458 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:6 | * and may cause signal delivery, we need to test for stack adjustment
* after the trap call.
*/
GLOBAL(fpfault)
clrl %sp@- | stack adjust count
moveml #0xFFFF,%sp@- | save user registers
movl %usp,%a0 | and save
movl %a0,%sp@(FR_SP) | the user stack pointer
clrl %sp@- | no VA arg
movl _C_LABEL(curpcb),%a0 |... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 4c465e6270cbb133d0b73973b89f8d3ed0d19c25 | github | kernel | https://github.com/NetBSD/src/blob/4c465e6270cbb133d0b73973b89f8d3ed0d19c25/sys/arch/sun3/sun3/locore.s | 201 | 260 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:7 | movl %a0,%usp | user SP
moveml %sp@+,#0x7FFF | restore most registers
addql #8,%sp | pop SP and stack adjust
jra _ASM_LABEL(rei) | all done
/*
* Trap 12 is the entry point for the cachectl "syscall"
* cachectl(command, addr, length)
* command in %d0, addr in %a1, length in %d1
*/
GLOBAL(trap12)
movl _C_... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 4c465e6270cbb133d0b73973b89f8d3ed0d19c25 | github | kernel | https://github.com/NetBSD/src/blob/4c465e6270cbb133d0b73973b89f8d3ed0d19c25/sys/arch/sun3/sun3/locore.s | 241 | 300 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:8 | /*
* Trap 15 is used for:
* - 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().
*/
GLOBAL(trap15)
clrl %sp@- | stack adjust count
moveml #0xFFFF,%sp@-
moveq #T_TRAP15,%d0
btst #5,%... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 4c465e6270cbb133d0b73973b89f8d3ed0d19c25 | github | kernel | https://github.com/NetBSD/src/blob/4c465e6270cbb133d0b73973b89f8d3ed0d19c25/sys/arch/sun3/sun3/locore.s | 281 | 340 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:9 | | Do not call trap() to handle it, so that we can
| set breakpoints in trap() if we want. We know
| the trap type is either T_TRACE or T_BREAKPOINT.
movl %d0,%sp@- | push trap type
jbsr _C_LABEL(trap_kdebug)
addql #4,%sp | pop args
| The stack pointer may have been modified, or
| data below it modified (by ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 4c465e6270cbb133d0b73973b89f8d3ed0d19c25 | github | kernel | https://github.com/NetBSD/src/blob/4c465e6270cbb133d0b73973b89f8d3ed0d19c25/sys/arch/sun3/sun3/locore.s | 321 | 380 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:10 | * Initialization is at the beginning of this file, because the
* kernel entry point needs to be at zero for compatibility with
* the Sun boot loader. This works on Sun machines because the
* interrupt vector table for reset is NOT at address zero.
* (The MMU has a "boot" bit that forces access to the PROM)
*/
/*... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 4c465e6270cbb133d0b73973b89f8d3ed0d19c25 | github | kernel | https://github.com/NetBSD/src/blob/4c465e6270cbb133d0b73973b89f8d3ed0d19c25/sys/arch/sun3/sun3/locore.s | 361 | 420 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:11 | /* loadustp, ptest_addr */
/*
* _delay(unsigned N)
* Delay for at least (N/256) microseconds.
* This routine depends on the variable: delay_divisor
* which should be set based on the CPU clock rate.
* XXX: Currently this is set based on the CPU model,
* XXX: but this should be determined at run time...
*/
GLOB... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 4c465e6270cbb133d0b73973b89f8d3ed0d19c25 | github | kernel | https://github.com/NetBSD/src/blob/4c465e6270cbb133d0b73973b89f8d3ed0d19c25/sys/arch/sun3/sun3/locore.s | 401 | 460 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:12 | movl 8(%fp),%d3 | d3 = va
andl #0xffffffc,%d3
bset #29,%d3
movl %d3,%a1 | a1 = ctrladdr, d3 avail
movl 12(%fp),%d1 | d1 = sme
moveq #FC_CONTROL,%d0
movl #CONTEXT_REG,%a0 | a0 = ctxreg
movc %sfc,%d3 | d3 = oldsfc
movc %d0,%sfc
movsb %a0@,%d2
andi #7,%d2 | d2 = oldctx
movc %d3,%sfc | restore sfc, d3 av... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 4c465e6270cbb133d0b73973b89f8d3ed0d19c25 | github | kernel | https://github.com/NetBSD/src/blob/4c465e6270cbb133d0b73973b89f8d3ed0d19c25/sys/arch/sun3/sun3/locore.s | 441 | 475 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:6 | * and may cause signal delivery, we need to test for stack adjustment
* after the trap call.
*/
GLOBAL(fpfault)
clrl %sp@- | stack adjust count
moveml #0xFFFF,%sp@- | save user registers
movl %usp,%a0 | and save
movl %a0,%sp@(FR_SP) | the user stack pointer
clrl %sp@- | no VA arg
movl _C_LABEL(curpcb),%a0 |... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | fd89440ac6bfc9214810e1056f80b69c2878b7ba | github | kernel | https://github.com/NetBSD/src/blob/fd89440ac6bfc9214810e1056f80b69c2878b7ba/sys/arch/sun3/sun3/locore.s | 201 | 260 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:7 | moveml #0xFFFF,%sp@- | save user registers
movl %usp,%a0 | save the user SP
movl %a0,%sp@(FR_SP) | in the savearea
movl %d0,%sp@- | push syscall number
jbsr _C_LABEL(syscall) | handle it
addql #4,%sp | pop syscall arg
movl %sp@(FR_SP),%a0 | grab and restore
movl %a0,%usp | user SP
moveml %sp@+,#0x7F... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | fd89440ac6bfc9214810e1056f80b69c2878b7ba | github | kernel | https://github.com/NetBSD/src/blob/fd89440ac6bfc9214810e1056f80b69c2878b7ba/sys/arch/sun3/sun3/locore.s | 241 | 300 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:9 | Lbrkpt1:
movl %a0@+,%a1@+
subql #4,%d1
bgt Lbrkpt1
Lbrkpt2:
| Call the trap handler for the kernel debugger.
| Do not call trap() to handle it, so that we can
| set breakpoints in trap() if we want. We know
| the trap type is either T_TRACE or T_BREAKPOINT.
movl %d0,%sp@- | push trap type
jbsr _C_LABEL(trap... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 9a0dbd044da39c7df3a3ef7bf2d3ebc8cfae0f6c | github | kernel | https://github.com/NetBSD/src/blob/9a0dbd044da39c7df3a3ef7bf2d3ebc8cfae0f6c/sys/arch/sun3/sun3/locore.s | 321 | 380 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:10 | GLOBAL(_isr_clock)
INTERRUPT_SAVEREG
jbsr _C_LABEL(clock_intr)
INTERRUPT_RESTOREREG
jra _ASM_LABEL(rei)
/*
* Emulation of VAX REI instruction.
*
* This code is (mostly) un-altered from the hp300 code,
* except that sun machines do not need a simulated SIR
* because they have a real software interrupt register... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 9a0dbd044da39c7df3a3ef7bf2d3ebc8cfae0f6c | github | kernel | https://github.com/NetBSD/src/blob/9a0dbd044da39c7df3a3ef7bf2d3ebc8cfae0f6c/sys/arch/sun3/sun3/locore.s | 361 | 420 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:11 | clrl %sp@- | code == none
movl #T_ASTFLT,%sp@- | type == async system trap
pea %sp@(12) | fp == address of trap frame
jbsr _C_LABEL(trap) | go handle it
lea %sp@(16),%sp | pop value args
movl %sp@(FR_SP),%a0 | restore user SP
movl %a0,%usp | from save area
movw %sp@(FR_ADJ),%d0 | need to adjust stack?
... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 9a0dbd044da39c7df3a3ef7bf2d3ebc8cfae0f6c | github | kernel | https://github.com/NetBSD/src/blob/9a0dbd044da39c7df3a3ef7bf2d3ebc8cfae0f6c/sys/arch/sun3/sun3/locore.s | 401 | 460 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:12 | #define FPCOPROC /* XXX: Temp. Reqd. */
#include <m68k/m68k/switch_subr.s>
/* suline() */
/* TBIA, TBIS, TBIAS, TBIAU */
/*
* Invalidate instruction cache
*/
ENTRY(ICIA)
movl #IC_CLEAR,%d0
movc %d0,%cacr | invalidate i-cache
rts
/* DCIA, DCIS */
/*
* Invalidate data cache.
*/
ENTRY(DCIU)
rts
/* ICPL, ICP... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 9a0dbd044da39c7df3a3ef7bf2d3ebc8cfae0f6c | github | kernel | https://github.com/NetBSD/src/blob/9a0dbd044da39c7df3a3ef7bf2d3ebc8cfae0f6c/sys/arch/sun3/sun3/locore.s | 441 | 500 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:13 | movl _C_LABEL(delay_divisor),%d1
jra L_delay /* Jump into the loop! */
/*
* Align the branch target of the loop to a half-line (8-byte)
* boundary to minimize cache effects. This guarantees both
* that there will be no prefetch stalls due to cache line burst
* operations and that the loop will run from a ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 9a0dbd044da39c7df3a3ef7bf2d3ebc8cfae0f6c | github | kernel | https://github.com/NetBSD/src/blob/9a0dbd044da39c7df3a3ef7bf2d3ebc8cfae0f6c/sys/arch/sun3/sun3/locore.s | 481 | 540 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:5 | | Will do fpu initialization during autoconfig (see fpu.c)
| The interrupt vector table and stack are now ready.
| Interrupts will be enabled later, AFTER autoconfiguration
| is finished, to avoid spurrious interrupts.
/*
* Create a fake exception frame so that cpu_lwp_fork() can copy it.
* main() nevers returns; w... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 7a50df7f13f44282c494a158ccac105d4d8e3c64 | github | kernel | https://github.com/NetBSD/src/blob/7a50df7f13f44282c494a158ccac105d4d8e3c64/sys/arch/sun3/sun3/locore.s | 161 | 220 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:6 | jra _ASM_LABEL(fault) | do it
/*
* Handles all other FP coprocessor exceptions.
* Note that since some FP exceptions generate mid-instruction frames
* and may cause signal delivery, we need to test for stack adjustment
* after the trap call.
*/
GLOBAL(fpfault)
clrl %sp@- | stack adjust count
moveml #0xFFFF,%sp... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 7a50df7f13f44282c494a158ccac105d4d8e3c64 | github | kernel | https://github.com/NetBSD/src/blob/7a50df7f13f44282c494a158ccac105d4d8e3c64/sys/arch/sun3/sun3/locore.s | 201 | 260 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:7 | /*
* Trap 0 is for system calls
*/
GLOBAL(trap0)
clrl %sp@- | stack adjust count
moveml #0xFFFF,%sp@- | save user registers
movl %usp,%a0 | save the user SP
movl %a0,%sp@(FR_SP) | in the savearea
movl %d0,%sp@- | push syscall number
jbsr _C_LABEL(syscall) | handle it
addql #4,%sp | pop syscall arg
m... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 7a50df7f13f44282c494a158ccac105d4d8e3c64 | github | kernel | https://github.com/NetBSD/src/blob/7a50df7f13f44282c494a158ccac105d4d8e3c64/sys/arch/sun3/sun3/locore.s | 241 | 300 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:8 | | 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
andw #PSL_TS,%d1 | from... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 7a50df7f13f44282c494a158ccac105d4d8e3c64 | github | kernel | https://github.com/NetBSD/src/blob/7a50df7f13f44282c494a158ccac105d4d8e3c64/sys/arch/sun3/sun3/locore.s | 281 | 340 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:9 | | 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
moveq #FR_SIZE,%d1
Lbrkpt1:
movl %a0@+,%a1@+
subql #4,%d1
bgt Lbrkpt1
Lbrkpt2:
| Call the trap handler for the kernel debugger.
| Do not call trap() to handle it, so that we can
... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 7a50df7f13f44282c494a158ccac105d4d8e3c64 | github | kernel | https://github.com/NetBSD/src/blob/7a50df7f13f44282c494a158ccac105d4d8e3c64/sys/arch/sun3/sun3/locore.s | 321 | 380 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:10 | #ifdef __ELF__
.align 4
#else
.align 2
#endif
GLOBAL(_isr_clock)
INTERRUPT_SAVEREG
jbsr _C_LABEL(clock_intr)
INTERRUPT_RESTOREREG
jra _ASM_LABEL(rei)
/*
* Emulation of VAX REI instruction.
*
* This code is (mostly) un-altered from the hp300 code,
* except that sun machines do not need a simulated SIR
* beca... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 7a50df7f13f44282c494a158ccac105d4d8e3c64 | github | kernel | https://github.com/NetBSD/src/blob/7a50df7f13f44282c494a158ccac105d4d8e3c64/sys/arch/sun3/sun3/locore.s | 361 | 420 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:11 | clrl %sp@- | stack adjust
moveml #0xFFFF,%sp@- | save all registers
movl %usp,%a1 | including
movl %a1,%sp@(FR_SP) | the users SP
clrl %sp@- | VA == none
clrl %sp@- | code == none
movl #T_ASTFLT,%sp@- | type == async system trap
pea %sp@(12) | fp == address of trap frame
jbsr _C_LABEL(trap) | go ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 7a50df7f13f44282c494a158ccac105d4d8e3c64 | github | kernel | https://github.com/NetBSD/src/blob/7a50df7f13f44282c494a158ccac105d4d8e3c64/sys/arch/sun3/sun3/locore.s | 401 | 460 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:12 | */
/*
* Use common m68k process/lwp switch and context save subroutines.
*/
#define FPCOPROC /* XXX: Temp. Reqd. */
#include <m68k/m68k/switch_subr.s>
/* suline() */
/* TBIA, TBIS, TBIAS, TBIAU */
/*
* Invalidate instruction cache
*/
ENTRY(ICIA)
movl #IC_CLEAR,%d0
movc %d0,%cacr | invalidate i-cache
rts
/*... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 7a50df7f13f44282c494a158ccac105d4d8e3c64 | github | kernel | https://github.com/NetBSD/src/blob/7a50df7f13f44282c494a158ccac105d4d8e3c64/sys/arch/sun3/sun3/locore.s | 441 | 500 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:13 | */
GLOBAL(_delay)
| %d0 = arg = (usecs << 8)
movl %sp@(4),%d0
| %d1 = delay_divisor;
movl _C_LABEL(delay_divisor),%d1
jra L_delay /* Jump into the loop! */
/*
* Align the branch target of the loop to a half-line (8-byte)
* boundary to minimize cache effects. This guarantees both
* that there will be no ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 7a50df7f13f44282c494a158ccac105d4d8e3c64 | github | kernel | https://github.com/NetBSD/src/blob/7a50df7f13f44282c494a158ccac105d4d8e3c64/sys/arch/sun3/sun3/locore.s | 481 | 540 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:14 | movsb %a0@,%d2
andi #7,%d2 | d2 = oldctx
movc %d3,%sfc | restore sfc, d3 avail
movc %dfc,%d3 | d3 = olddfc
movc %d0,%dfc
movl #(CONTEXT_NUM - 1),%d0 | d0 = ctx number
1:
movsb %d0,%a0@ | change to ctx
movsb %d1,%a1@ | set segmap
dbf %d0,1b | loop setting each ctx
movsb %d2,%a0@ | restore ctx
movc %d3... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 7a50df7f13f44282c494a158ccac105d4d8e3c64 | github | kernel | https://github.com/NetBSD/src/blob/7a50df7f13f44282c494a158ccac105d4d8e3c64/sys/arch/sun3/sun3/locore.s | 521 | 546 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:5 | | Will do fpu initialization during autoconfig (see fpu.c)
| The interrupt vector table and stack are now ready.
| Interrupts will be enabled later, AFTER autoconfiguration
| is finished, to avoid spurrious interrupts.
/*
* Create a fake exception frame so that cpu_lwp_fork() can copy it.
* main() nevers returns; w... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 6279c1e992621a887496dc9278adf6ed8aff06c5 | github | kernel | https://github.com/NetBSD/src/blob/6279c1e992621a887496dc9278adf6ed8aff06c5/sys/arch/sun3/sun3/locore.s | 161 | 220 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:6 | btst #12,%d0 | RB set?
jeq LbeX0 | no, test RC
bset #14,%d0 | yes, must set FB
movw %d0,%a1@(10) | for hardware too
LbeX0:
btst #13,%d0 | RC set?
jeq LbeX1 | no, skip
bset #15,%d0 | yes, must set FC
movw %d0,%a1@(10) | for hardware too
LbeX1:
btst #8,%d0 | data fault?
jeq Lbe0 | no, check for... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 6279c1e992621a887496dc9278adf6ed8aff06c5 | github | kernel | https://github.com/NetBSD/src/blob/6279c1e992621a887496dc9278adf6ed8aff06c5/sys/arch/sun3/sun3/locore.s | 201 | 260 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:7 | /*
* the sun3 specific code
*
* our mission: figure out whether what we are looking at is
* bus error in the UNIX sense, or
* a memory error i.e a page fault
*
* [this code replaces similarly mmu specific code in the hp300 code]
*/
sun3_mmu_specific:
clrl %d0 | make sure top bits are cle... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 6279c1e992621a887496dc9278adf6ed8aff06c5 | github | kernel | https://github.com/NetBSD/src/blob/6279c1e992621a887496dc9278adf6ed8aff06c5/sys/arch/sun3/sun3/locore.s | 241 | 300 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:8 | GLOBAL(fpunsupp)
clrl %sp@- | stack adjust count
moveml #0xFFFF,%sp@- | save registers
moveq #T_FPEMULD,%d0 | denote as FP emulation trap
jra _ASM_LABEL(fault) | do it
/*
* Handles all other FP coprocessor exceptions.
* Note that since some FP exceptions generate mid-instruction frames
* and may cause signa... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 6279c1e992621a887496dc9278adf6ed8aff06c5 | github | kernel | https://github.com/NetBSD/src/blob/6279c1e992621a887496dc9278adf6ed8aff06c5/sys/arch/sun3/sun3/locore.s | 281 | 340 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:9 | jbsr _C_LABEL(straytrap) | report
moveml %sp@+,#0xFFFF | restore regs
addql #4,%sp | stack adjust count
jra _ASM_LABEL(rei) | all done
/*
* Trap 0 is for system calls
*/
GLOBAL(trap0)
clrl %sp@- | stack adjust count
moveml #0xFFFF,%sp@- | save user registers
movl %usp,%a0 | save the user SP
movl %a0,%... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 6279c1e992621a887496dc9278adf6ed8aff06c5 | github | kernel | https://github.com/NetBSD/src/blob/6279c1e992621a887496dc9278adf6ed8aff06c5/sys/arch/sun3/sun3/locore.s | 321 | 380 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:10 | */
GLOBAL(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
| T=0 S=1 trace trap on a trap instruction
| T=1 S=1 trace trap from system mode (kernel breakpoint)
movw %sp@(... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 6279c1e992621a887496dc9278adf6ed8aff06c5 | github | kernel | https://github.com/NetBSD/src/blob/6279c1e992621a887496dc9278adf6ed8aff06c5/sys/arch/sun3/sun3/locore.s | 361 | 420 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:11 | | If we 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 temporary stack
movl %sp,%a0 | %a0=src
lea _ASM_LABEL(tmpstk)-96,%a1 | %a1=dst
movl %a1,%sp | sp=new frame
moveq #FR_SIZE,%d1
... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 6279c1e992621a887496dc9278adf6ed8aff06c5 | github | kernel | https://github.com/NetBSD/src/blob/6279c1e992621a887496dc9278adf6ed8aff06c5/sys/arch/sun3/sun3/locore.s | 401 | 460 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:12 | * Format in the stack is:
* %d0,%d1,%a0,%a1, sr, pc, vo
*/
/* clock: see clock.c */
#ifdef __ELF__
.align 4
#else
.align 2
#endif
GLOBAL(_isr_clock)
INTERRUPT_SAVEREG
jbsr _C_LABEL(clock_intr)
INTERRUPT_RESTOREREG
jra _ASM_LABEL(rei)
/*
* Emulation of VAX REI instruction.
*
* This code is (mostly) un-alt... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 6279c1e992621a887496dc9278adf6ed8aff06c5 | github | kernel | https://github.com/NetBSD/src/blob/6279c1e992621a887496dc9278adf6ed8aff06c5/sys/arch/sun3/sun3/locore.s | 441 | 500 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:13 | jeq Ldorte | no, done
Lrei1:
btst #5,%sp@ | yes, are we returning to user mode?
jne Ldorte | no, done
movw #PSL_LOWIPL,%sr | lower SPL
clrl %sp@- | stack adjust
moveml #0xFFFF,%sp@- | save all registers
movl %usp,%a1 | including
movl %a1,%sp@(FR_SP) | the users SP
clrl %sp@- | VA == none
clrl ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 6279c1e992621a887496dc9278adf6ed8aff06c5 | github | kernel | https://github.com/NetBSD/src/blob/6279c1e992621a887496dc9278adf6ed8aff06c5/sys/arch/sun3/sun3/locore.s | 481 | 540 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:14 | * (The MMU has a "boot" bit that forces access to the PROM)
*/
/*
* Primitives
*/
/*
* Use common m68k process/lwp switch and context save subroutines.
*/
#define FPCOPROC /* XXX: Temp. Reqd. */
#include <m68k/m68k/switch_subr.s>
/* suline() */
/* TBIA, TBIS, TBIAS, TBIAU */
/*
* Invalidate instruction cache... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 6279c1e992621a887496dc9278adf6ed8aff06c5 | github | kernel | https://github.com/NetBSD/src/blob/6279c1e992621a887496dc9278adf6ed8aff06c5/sys/arch/sun3/sun3/locore.s | 521 | 580 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:15 | * Delay for at least (N/256) microseconds.
* This routine depends on the variable: delay_divisor
* which should be set based on the CPU clock rate.
* XXX: Currently this is set based on the CPU model,
* XXX: but this should be determined at run time...
*/
GLOBAL(_delay)
| %d0 = arg = (usecs << 8)
movl %sp@(4),%... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 6279c1e992621a887496dc9278adf6ed8aff06c5 | github | kernel | https://github.com/NetBSD/src/blob/6279c1e992621a887496dc9278adf6ed8aff06c5/sys/arch/sun3/sun3/locore.s | 561 | 620 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:16 | movl 12(%fp),%d1 | d1 = sme
moveq #FC_CONTROL,%d0
movl #CONTEXT_REG,%a0 | a0 = ctxreg
movc %sfc,%d3 | d3 = oldsfc
movc %d0,%sfc
movsb %a0@,%d2
andi #7,%d2 | d2 = oldctx
movc %d3,%sfc | restore sfc, d3 avail
movc %dfc,%d3 | d3 = olddfc
movc %d0,%dfc
movl #(CONTEXT_NUM - 1),%d0 | d0 = ctx number
1:
movsb... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 6279c1e992621a887496dc9278adf6ed8aff06c5 | github | kernel | https://github.com/NetBSD/src/blob/6279c1e992621a887496dc9278adf6ed8aff06c5/sys/arch/sun3/sun3/locore.s | 601 | 631 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:13 | jeq Ldorte | no, done
Lrei1:
btst #5,%sp@ | yes, are we returning to user mode?
jne Ldorte | no, done
movw #PSL_LOWIPL,%sr | lower SPL
clrl %sp@- | stack adjust
moveml #0xFFFF,%sp@- | save all registers
movl %usp,%a1 | including
movl %a1,%sp@(FR_SP) | the users SP
clrl %sp@- | VA == none
clrl ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | c935f8294f8dbedb30d0ac8738963ee40ec9a39a | github | kernel | https://github.com/NetBSD/src/blob/c935f8294f8dbedb30d0ac8738963ee40ec9a39a/sys/arch/sun3/sun3/locore.s | 481 | 540 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:11 | | If we 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 temporary stack
movl %sp,%a0 | %a0=src
lea _ASM_LABEL(tmpstk)-96,%a1 | %a1=dst
movl %a1,%sp | sp=new frame
moveq #FR_SIZE,%d1
... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 703d1d4836bbf6504f494e94d6287e898624ade1 | github | kernel | https://github.com/NetBSD/src/blob/703d1d4836bbf6504f494e94d6287e898624ade1/sys/arch/sun3/sun3/locore.s | 401 | 460 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:12 | /*
* Interrupt handlers. Most are auto-vectored,
* and hard-wired the same way on all sun3 models.
* Format in the stack is:
* %d0,%d1,%a0,%a1, sr, pc, vo
*/
/* clock: see clock.c */
#ifdef __ELF__
.align 4
#else
.align 2
#endif
GLOBAL(_isr_clock)
INTERRUPT_SAVEREG
jbsr _C_LABEL(clock_intr)
INTERRUPT_REST... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 703d1d4836bbf6504f494e94d6287e898624ade1 | github | kernel | https://github.com/NetBSD/src/blob/703d1d4836bbf6504f494e94d6287e898624ade1/sys/arch/sun3/sun3/locore.s | 441 | 500 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:13 | jne Ldorte | yes, do not make matters worse
#endif
tstl _C_LABEL(astpending) | AST pending?
jeq Ldorte | no, done
Lrei1:
btst #5,%sp@ | yes, are we returning to user mode?
jne Ldorte | no, done
movw #PSL_LOWIPL,%sr | lower SPL
clrl %sp@- | stack adjust
moveml #0xFFFF,%sp@- | save all registers
movl ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 703d1d4836bbf6504f494e94d6287e898624ade1 | github | kernel | https://github.com/NetBSD/src/blob/703d1d4836bbf6504f494e94d6287e898624ade1/sys/arch/sun3/sun3/locore.s | 481 | 540 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:15 | /*
* Invalidate data cache.
*/
ENTRY(DCIU)
rts
/* ICPL, ICPP, DCPL, DCPP, DCPA, DCFL, DCFP */
/* PCIA, ecacheon, ecacheoff */
/* loadustp, ptest_addr */
/*
* _delay(unsigned N)
* Delay for at least (N/256) microseconds.
* This routine depends on the variable: delay_divisor
* which should be set based on the ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 703d1d4836bbf6504f494e94d6287e898624ade1 | github | kernel | https://github.com/NetBSD/src/blob/703d1d4836bbf6504f494e94d6287e898624ade1/sys/arch/sun3/sun3/locore.s | 561 | 620 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:16 | jgt L_delay
rts
/*
* void set_segmap_allctx(vaddr_t va, int sme)
*/
ENTRY(set_segmap_allctx)
linkw %fp,#0
moveml #0x3000,%sp@-
movl 8(%fp),%d3 | d3 = va
andl #0xffffffc,%d3
bset #29,%d3
movl %d3,%a1 | a1 = ctrladdr, d3 avail
movl 12(%fp),%d1 | d1 = sme
moveq #FC_CONTROL,%d0
movl #CONTEXT_REG,%a0 | a0 =... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 703d1d4836bbf6504f494e94d6287e898624ade1 | github | kernel | https://github.com/NetBSD/src/blob/703d1d4836bbf6504f494e94d6287e898624ade1/sys/arch/sun3/sun3/locore.s | 601 | 644 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:15 | movc %d0,%cacr | invalidate i-cache
rts
/* DCIA, DCIS */
/*
* Invalidate data cache.
*/
ENTRY(DCIU)
rts
/* ICPL, ICPP, DCPL, DCPP, DCPA, DCFL, DCFP */
/* PCIA, ecacheon, ecacheoff */
/* loadustp, ptest_addr */
/*
* _delay(unsigned N)
* Delay for at least (N/256) microseconds.
* This routine depends on the ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 9ded135d26381ecef53f4a4fe2673ca1a63a0c55 | github | kernel | https://github.com/NetBSD/src/blob/9ded135d26381ecef53f4a4fe2673ca1a63a0c55/sys/arch/sun3/sun3/locore.s | 561 | 620 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:16 | #else
.align 3
#endif
L_delay:
subl %d1,%d0
jgt L_delay
rts
/*
* void set_segmap_allctx(vaddr_t va, int sme)
*/
ENTRY(set_segmap_allctx)
linkw %fp,#0
moveml #0x3000,%sp@-
movl 8(%fp),%d3 | d3 = va
andl #0xffffffc,%d3
bset #29,%d3
movl %d3,%a1 | a1 = ctrladdr, d3 avail
movl 12(%fp),%d1 | d1 = sme
move... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 9ded135d26381ecef53f4a4fe2673ca1a63a0c55 | github | kernel | https://github.com/NetBSD/src/blob/9ded135d26381ecef53f4a4fe2673ca1a63a0c55/sys/arch/sun3/sun3/locore.s | 601 | 649 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:11 | | If we 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 temporary stack
movl %sp,%a0 | %a0=src
lea _ASM_LABEL(tmpstk)-96,%a1 | %a1=dst
movl %a1,%sp | sp=new frame
moveq #FR_SIZE,%d1
... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 44ce13b2c4665234fd2e3670e5cff2eab40c6199 | github | kernel | https://github.com/NetBSD/src/blob/44ce13b2c4665234fd2e3670e5cff2eab40c6199/sys/arch/sun3/sun3/locore.s | 401 | 460 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:12 | /*
* Interrupt handlers. Most are auto-vectored,
* and hard-wired the same way on all sun3 models.
* Format in the stack is:
* %d0,%d1,%a0,%a1, sr, pc, vo
*/
/* clock: see clock.c */
#ifdef __ELF__
.align 4
#else
.align 2
#endif
GLOBAL(_isr_clock)
INTERRUPT_SAVEREG
jbsr _C_LABEL(clock_intr)
INTERRUPT_REST... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 44ce13b2c4665234fd2e3670e5cff2eab40c6199 | github | kernel | https://github.com/NetBSD/src/blob/44ce13b2c4665234fd2e3670e5cff2eab40c6199/sys/arch/sun3/sun3/locore.s | 441 | 500 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:13 | *
* This code is (mostly) un-altered from the hp300 code,
* except that sun machines do not need a simulated SIR
* because they have a real software interrupt register.
*
* This code deals with checking for and servicing ASTs
* (profiling, scheduling) and software interrupts (network, softclock).
* We check for ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 44ce13b2c4665234fd2e3670e5cff2eab40c6199 | github | kernel | https://github.com/NetBSD/src/blob/44ce13b2c4665234fd2e3670e5cff2eab40c6199/sys/arch/sun3/sun3/locore.s | 481 | 540 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:14 | jne Laststkadj | yes, go to it
moveml %sp@+,#0x7FFF | no, restore most user regs
addql #8,%sp | toss SP and stack adjust
rte | and do real RTE
Laststkadj:
lea %sp@(FR_HW),%a1 | pointer to HW frame
addql #8,%a1 | source pointer
movl %a1,%a0 | source
addw %d0,%a0 | + hole size = dest pointer
movl %... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 44ce13b2c4665234fd2e3670e5cff2eab40c6199 | github | kernel | https://github.com/NetBSD/src/blob/44ce13b2c4665234fd2e3670e5cff2eab40c6199/sys/arch/sun3/sun3/locore.s | 521 | 580 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:15 | * Use common m68k support routines.
*/
#include <m68k/m68k/support.s>
/*
* Use common m68k process/lwp switch and context save subroutines.
*/
#define FPCOPROC /* XXX: Temp. Reqd. */
#include <m68k/m68k/switch_subr.s>
/* suline() */
/* TBIA, TBIS, TBIAS, TBIAU */
/*
* Invalidate instruction cache
*/
ENTRY(ICIA... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 44ce13b2c4665234fd2e3670e5cff2eab40c6199 | github | kernel | https://github.com/NetBSD/src/blob/44ce13b2c4665234fd2e3670e5cff2eab40c6199/sys/arch/sun3/sun3/locore.s | 561 | 620 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:16 | * XXX: Currently this is set based on the CPU model,
* XXX: but this should be determined at run time...
*/
GLOBAL(_delay)
| %d0 = arg = (usecs << 8)
movl %sp@(4),%d0
| %d1 = delay_divisor;
movl _C_LABEL(delay_divisor),%d1
jra L_delay /* Jump into the loop! */
/*
* Align the branch target of the loop to a ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 44ce13b2c4665234fd2e3670e5cff2eab40c6199 | github | kernel | https://github.com/NetBSD/src/blob/44ce13b2c4665234fd2e3670e5cff2eab40c6199/sys/arch/sun3/sun3/locore.s | 601 | 660 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:17 | movc %sfc,%d3 | d3 = oldsfc
movc %d0,%sfc
movsb %a0@,%d2
andi #7,%d2 | d2 = oldctx
movc %d3,%sfc | restore sfc, d3 avail
movc %dfc,%d3 | d3 = olddfc
movc %d0,%dfc
movl #(CONTEXT_NUM - 1),%d0 | d0 = ctx number
1:
movsb %d0,%a0@ | change to ctx
movsb %d1,%a1@ | set segmap
dbf %d0,1b | loop setting each... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 44ce13b2c4665234fd2e3670e5cff2eab40c6199 | github | kernel | https://github.com/NetBSD/src/blob/44ce13b2c4665234fd2e3670e5cff2eab40c6199/sys/arch/sun3/sun3/locore.s | 641 | 668 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:11 | | If we 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 temporary stack
movl %sp,%a0 | %a0=src
lea _ASM_LABEL(tmpstk)-96,%a1 | %a1=dst
movl %a1,%sp | sp=new frame
moveq #FR_SIZE,%d1
... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 999c8e0aca9a0dea255e3b4ffad9384faa719e09 | github | kernel | https://github.com/NetBSD/src/blob/999c8e0aca9a0dea255e3b4ffad9384faa719e09/sys/arch/sun3/sun3/locore.s | 401 | 460 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:12 | /*
* Interrupt handlers. Most are auto-vectored,
* and hard-wired the same way on all sun3 models.
* Format in the stack is:
* %d0,%d1,%a0,%a1, sr, pc, vo
*/
/*
* This is the common auto-vector interrupt handler,
* for which the CPU provides the vector=0x18+level.
* These are installed in the interrupt vect... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 999c8e0aca9a0dea255e3b4ffad9384faa719e09 | github | kernel | https://github.com/NetBSD/src/blob/999c8e0aca9a0dea255e3b4ffad9384faa719e09/sys/arch/sun3/sun3/locore.s | 441 | 500 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:13 | #endif
GLOBAL(_isr_vectored)
INTERRUPT_SAVEREG
jbsr _C_LABEL(isr_vectored)
INTERRUPT_RESTOREREG
jra _ASM_LABEL(rei)
/* interrupt counters (needed by vmstat) */
GLOBAL(intrnames)
.asciz "spur" | 0
.asciz "lev1" | 1
.asciz "lev2" | 2
.asciz "lev3" | 3
.asciz "lev4" | 4
.asciz "clock" | 5
.asciz "lev6" | 6
.a... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 999c8e0aca9a0dea255e3b4ffad9384faa719e09 | github | kernel | https://github.com/NetBSD/src/blob/999c8e0aca9a0dea255e3b4ffad9384faa719e09/sys/arch/sun3/sun3/locore.s | 481 | 540 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:14 | * This code is complicated by the fact that sendsig may have been called
* necessitating a stack cleanup.
*/
ASGLOBAL(rei)
#ifdef DIAGNOSTIC
tstl _C_LABEL(panicstr) | have we panicked?
jne Ldorte | yes, do not make matters worse
#endif
tstl _C_LABEL(astpending) | AST pending?
jeq Ldorte | no, done
Lrei1:
bt... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 999c8e0aca9a0dea255e3b4ffad9384faa719e09 | github | kernel | https://github.com/NetBSD/src/blob/999c8e0aca9a0dea255e3b4ffad9384faa719e09/sys/arch/sun3/sun3/locore.s | 521 | 580 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:16 | /* TBIA, TBIS, TBIAS, TBIAU */
/*
* Invalidate instruction cache
*/
ENTRY(ICIA)
movl #IC_CLEAR,%d0
movc %d0,%cacr | invalidate i-cache
rts
/* DCIA, DCIS */
/*
* Invalidate data cache.
*/
ENTRY(DCIU)
rts
/* ICPL, ICPP, DCPL, DCPP, DCPA, DCFL, DCFP */
/* PCIA, ecacheon, ecacheoff */
/* loadustp, ptest_addr ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 999c8e0aca9a0dea255e3b4ffad9384faa719e09 | github | kernel | https://github.com/NetBSD/src/blob/999c8e0aca9a0dea255e3b4ffad9384faa719e09/sys/arch/sun3/sun3/locore.s | 601 | 660 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:17 | * boundary to minimize cache effects. This guarantees both
* that there will be no prefetch stalls due to cache line burst
* operations and that the loop will run from a single cache
* half-line.
*/
#ifdef __ELF__
.align 8
#else
.align 3
#endif
L_delay:
subl %d1,%d0
jgt L_delay
rts
/*
* void set_segmap_... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 999c8e0aca9a0dea255e3b4ffad9384faa719e09 | github | kernel | https://github.com/NetBSD/src/blob/999c8e0aca9a0dea255e3b4ffad9384faa719e09/sys/arch/sun3/sun3/locore.s | 641 | 696 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:18 | movsb %d2,%a0@ | restore ctx
movc %d3,%dfc | restore dfc
moveml %sp@+,#0x000c
unlk %fp
rts
| Define some addresses, mostly so DDB can print useful info.
| Not using _C_LABEL() here because these symbols are never
| referenced by any C code, and if the leading underscore
| ever goes away, these lines turn into sy... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 999c8e0aca9a0dea255e3b4ffad9384faa719e09 | github | kernel | https://github.com/NetBSD/src/blob/999c8e0aca9a0dea255e3b4ffad9384faa719e09/sys/arch/sun3/sun3/locore.s | 681 | 696 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:16 | /* TBIA, TBIS, TBIAS, TBIAU */
/*
* Invalidate instruction cache
*/
ENTRY(ICIA)
movl #IC_CLEAR,%d0
movc %d0,%cacr | invalidate i-cache
rts
/* DCIA, DCIS */
/*
* Invalidate data cache.
*/
ENTRY(DCIU)
rts
/* ICPL, ICPP, DCPL, DCPP, DCPA, DCFL, DCFP */
/* PCIA, ecacheon, ecacheoff */
/* loadustp, ptest_addr ... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 451f3d23c3aff3c1b4b35a29f67dc03b9c88f913 | github | kernel | https://github.com/NetBSD/src/blob/451f3d23c3aff3c1b4b35a29f67dc03b9c88f913/sys/arch/sun3/sun3/locore.s | 601 | 660 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:17 | movl %d0,%d1
andl #PSL_HIGHIPL,%d1 | old &= PSL_HIGHIPL
cmpl %sp@(4),%d1 | (old - new)
bge Lsplr
movl %sp@(4),%d1
movw %d1,%sr
Lsplr:
rts
/*
* _delay(unsigned N)
* Delay for at least (N/256) microseconds.
* This routine depends on the variable: delay_divisor
* which should be set based on the CPU clock rat... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 451f3d23c3aff3c1b4b35a29f67dc03b9c88f913 | github | kernel | https://github.com/NetBSD/src/blob/451f3d23c3aff3c1b4b35a29f67dc03b9c88f913/sys/arch/sun3/sun3/locore.s | 641 | 700 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:16 | /* TBIA, TBIS, TBIAS, TBIAU */
/*
* Invalidate instruction cache
*/
ENTRY(ICIA)
movl #IC_CLEAR,%d0
movc %d0,%cacr | invalidate i-cache
rts
/* DCIA, DCIS */
/*
* Invalidate data cache.
*/
ENTRY(DCIU)
rts
/* ICPL, ICPP, DCPL, DCPP, DCPA, DCFL, DCFP */
/* PCIA, ecacheon, ecacheoff */
ENTRY(getvbr)
movc %vbr... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | f2eefce19f92c3c2d4969dc54ae1162d132c6f20 | github | kernel | https://github.com/NetBSD/src/blob/f2eefce19f92c3c2d4969dc54ae1162d132c6f20/sys/arch/sun3/sun3/locore.s | 601 | 660 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:17 | clrl %d0
movw %sr,%d0
movl %sp@(4),%d1
movw %d1,%sr
rts
ENTRY(_splraise)
clrl %d0
movw %sr,%d0
movl %d0,%d1
andl #PSL_HIGHIPL,%d1 | old &= PSL_HIGHIPL
cmpl %sp@(4),%d1 | (old - new)
bge Lsplr
movl %sp@(4),%d1
movw %d1,%sr
Lsplr:
rts
/*
* _delay(unsigned N)
* Delay for at least (N/256) microseconds.
*... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | f2eefce19f92c3c2d4969dc54ae1162d132c6f20 | github | kernel | https://github.com/NetBSD/src/blob/f2eefce19f92c3c2d4969dc54ae1162d132c6f20/sys/arch/sun3/sun3/locore.s | 641 | 700 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:18 | #ifdef __ELF__
.align 8
#else
.align 3
#endif
L_delay:
subl %d1,%d0
jgt L_delay
rts
/*
* void set_segmap_allctx(vaddr_t va, int sme)
*/
ENTRY(set_segmap_allctx)
linkw %fp,#0
moveml #0x3000,%sp@-
movl 8(%fp),%d3 | d3 = va
andl #0xffffffc,%d3
bset #29,%d3
movl %d3,%a1 | a1 = ctrladdr, d3 avail
movl 12(%... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | f2eefce19f92c3c2d4969dc54ae1162d132c6f20 | github | kernel | https://github.com/NetBSD/src/blob/f2eefce19f92c3c2d4969dc54ae1162d132c6f20/sys/arch/sun3/sun3/locore.s | 681 | 731 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:16 | /* TBIA, TBIS, TBIAS, TBIAU */
/*
* Invalidate instruction cache
*/
ENTRY(ICIA)
movl #IC_CLEAR,%d0
movc %d0,%cacr | invalidate i-cache
rts
/* DCIA, DCIS */
/*
* Invalidate data cache.
*/
ENTRY(DCIU)
rts
/* ICPL, ICPP, DCPL, DCPP, DCPA, DCFL, DCFP */
/* PCIA, ecacheon, ecacheoff */
ENTRY(getvbr)
movc %vbr... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | ee808e2fd9dcf231953d9f4e2e324e871b12bc23 | github | kernel | https://github.com/NetBSD/src/blob/ee808e2fd9dcf231953d9f4e2e324e871b12bc23/sys/arch/sun3/sun3/locore.s | 601 | 660 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:17 | clrl %d0
movw %sr,%d0
movl %d0,%a0
rts
ENTRY(_spl)
clrl %d0
movw %sr,%d0
movl %sp@(4),%d1
movw %d1,%sr
rts
ENTRY(_splraise)
clrl %d0
movw %sr,%d0
movl %d0,%d1
andl #PSL_HIGHIPL,%d1 | old &= PSL_HIGHIPL
cmpl %sp@(4),%d1 | (old - new)
bge Lsplr
movl %sp@(4),%d1
movw %d1,%sr
Lsplr:
rts
/*
* _delay(un... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | ee808e2fd9dcf231953d9f4e2e324e871b12bc23 | github | kernel | https://github.com/NetBSD/src/blob/ee808e2fd9dcf231953d9f4e2e324e871b12bc23/sys/arch/sun3/sun3/locore.s | 641 | 700 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:18 | * Align the branch target of the loop to a half-line (8-byte)
* boundary to minimize cache effects. This guarantees both
* that there will be no prefetch stalls due to cache line burst
* operations and that the loop will run from a single cache
* half-line.
*/
#ifdef __ELF__
.align 8
#else
.align 3
#endif
... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | ee808e2fd9dcf231953d9f4e2e324e871b12bc23 | github | kernel | https://github.com/NetBSD/src/blob/ee808e2fd9dcf231953d9f4e2e324e871b12bc23/sys/arch/sun3/sun3/locore.s | 681 | 737 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:19 | dbf %d0,1b | loop setting each ctx
movsb %d2,%a0@ | restore ctx
movc %d3,%dfc | restore dfc
moveml %sp@+,#0x000c
unlk %fp
rts
| Define some addresses, mostly so DDB can print useful info.
| Not using _C_LABEL() here because these symbols are never
| referenced by any C code, and if the leading underscore
| ev... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | ee808e2fd9dcf231953d9f4e2e324e871b12bc23 | github | kernel | https://github.com/NetBSD/src/blob/ee808e2fd9dcf231953d9f4e2e324e871b12bc23/sys/arch/sun3/sun3/locore.s | 721 | 737 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:16 | /* TBIA, TBIS, TBIAS, TBIAU */
/*
* Invalidate instruction cache
*/
ENTRY(ICIA)
movl #IC_CLEAR,%d0
movc %d0,%cacr | invalidate i-cache
rts
/* DCIA, DCIS */
/*
* Invalidate data cache.
*/
ENTRY(DCIU)
rts
/* ICPL, ICPP, DCPL, DCPP, DCPA, DCFL, DCFP */
/* PCIA, ecacheon, ecacheoff */
/*
* Get callers curren... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 3a3e6e6861107fa30395b99abb65697f94ef1bf8 | github | kernel | https://github.com/NetBSD/src/blob/3a3e6e6861107fa30395b99abb65697f94ef1bf8/sys/arch/sun3/sun3/locore.s | 601 | 660 |
NetBSD/src:sys/arch/sun3/sun3/locore.s:17 | movl %sp@(4),%d0
movc %d0,%vbr
rts
/* loadustp, ptest_addr */
/*
* Set processor priority level calls. Most are implemented with
* inline asm expansions. However, we need one instantiation here
* in case some non-optimized code makes external references.
* Most places will use the inlined functions param.h su... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3/locore.s | BSD-2-Clause | 3a3e6e6861107fa30395b99abb65697f94ef1bf8 | github | kernel | https://github.com/NetBSD/src/blob/3a3e6e6861107fa30395b99abb65697f94ef1bf8/sys/arch/sun3/sun3/locore.s | 641 | 700 |
NetBSD/src:sys/arch/sun3/sun3x/locore.s:2 | #include "opt_compat_sunos.h"
#include "opt_kgdb.h"
#include "opt_lockdebug.h"
#include "assym.h"
#include <machine/asm.h>
#include <machine/trap.h>
| Remember this is a fun project!
.data
GLOBAL(mon_crp)
.long 0,0
| This is for kvm_mkdb, and should be the address of the beginning
| of the kernel text segment (no... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3x/locore.s | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/sun3/sun3x/locore.s | 41 | 100 |
NetBSD/src:sys/arch/sun3/sun3x/locore.s:3 | movl #0x3F8107,%a0@ | map the low 1GB v=p with the
.long 0xf0100800 | transparent translation reg0
| [ pmove a0@, tt0 ]
| In order to map the kernel into high memory we will copy the root table
| entry which maps the 16 megabytes of memory starting at 0x0 into the
| entry which maps the 16 megabytes starting at... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3x/locore.s | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/sun3/sun3x/locore.s | 81 | 140 |
NetBSD/src:sys/arch/sun3/sun3x/locore.s:4 | | Now turn off the transparent translation of the low 1GB.
| (this also flushes the ATC)
clrl %sp@-
.long 0xf0170800 | pmove sp@,tt0
addql #4,%sp
jra _C_LABEL(main) | main() (never returns)
| That is all the assembly startup code we need on the sun3x!
| The rest of this is like the hp300/locore.s where possible... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3x/locore.s | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/sun3/sun3x/locore.s | 121 | 180 |
NetBSD/src:sys/arch/sun3/sun3x/locore.s:5 | ASGLOBAL(fulltflush)
.long 0
ASGLOBAL(fullcflush)
.long 0
.text
#endif
/*
* Load a new CPU Root Pointer (CRP) into the MMU.
* void loadcrp(struct mmu_rootptr *);
*/
ENTRY(loadcrp)
movl %sp@(4),%a0 | arg1: &CRP
movl #CACHE_CLR,%d0
movc %d0,%cacr | invalidate cache(s)
pflusha | flush entire TLB
pmove %a0... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3x/locore.s | BSD-2-Clause | 3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd | github | kernel | https://github.com/NetBSD/src/blob/3f1390c8cc18c3f67a4bd2632f8c7ad919cf86fd/sys/arch/sun3/sun3x/locore.s | 161 | 203 |
NetBSD/src:sys/arch/sun3/sun3x/locore.s:3 | movl #0x3F8107,%a0@ | map the low 1GB v=p with the
.long 0xf0100800 | transparent translation reg0
| [ pmove a0@, tt0 ]
| In order to map the kernel into high memory we will copy the root table
| entry which maps the 16 megabytes of memory starting at 0x0 into the
| entry which maps the 16 megabytes starting at... | x86_64 | gas-like | handwritten | NetBSD/src | sys/arch/sun3/sun3x/locore.s | BSD-2-Clause | 77232dcadc6b560bf38f2f6d53d5fd087a321d0c | github | kernel | https://github.com/NetBSD/src/blob/77232dcadc6b560bf38f2f6d53d5fd087a321d0c/sys/arch/sun3/sun3x/locore.s | 81 | 140 |
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