unfinished
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23659 a95241bf-73f2-0310-859d-f6bbb57e9c96
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@ -12,9 +12,10 @@
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.text
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// ToDo: fixme
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// ToDo: fixme -- platform dependant ?
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FUNCTION(reboot):
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reset
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rts
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/* void arch_int_enable_interrupts(void) */
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@ -64,6 +65,7 @@ arch_int_are_interrupts_enabled_no:
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// ToDo: fixme
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FUNCTION(dbg_save_registers):
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#warning M68K: implement dbx_save_registers!
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rts
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@ -76,60 +78,19 @@ FUNCTION(get_time_base):
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rts
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#warning M68K: checkme
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// void m68k_context_switch(addr_t *old_sp, addr_t new_sp);
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FUNCTION(m68k_context_switch):
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// regs to push on the stack: f13-f31, r13-r31, cr, r2, lr
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// push the old regs we need to save on the stack
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// f31-13
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stfdu %f31, -8(%r1)
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stfdu %f30, -8(%r1)
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stfdu %f29, -8(%r1)
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stfdu %f28, -8(%r1)
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stfdu %f27, -8(%r1)
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stfdu %f26, -8(%r1)
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stfdu %f25, -8(%r1)
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stfdu %f24, -8(%r1)
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stfdu %f23, -8(%r1)
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stfdu %f22, -8(%r1)
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stfdu %f21, -8(%r1)
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stfdu %f20, -8(%r1)
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stfdu %f19, -8(%r1)
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stfdu %f18, -8(%r1)
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stfdu %f17, -8(%r1)
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stfdu %f16, -8(%r1)
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stfdu %f15, -8(%r1)
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stfdu %f14, -8(%r1)
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stfdu %f13, -8(%r1)
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// r31-13, r2
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stwu %r31, -4(%r1)
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stwu %r30, -4(%r1)
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stwu %r29, -4(%r1)
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stwu %r28, -4(%r1)
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stwu %r27, -4(%r1)
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stwu %r26, -4(%r1)
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stwu %r25, -4(%r1)
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stwu %r24, -4(%r1)
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stwu %r23, -4(%r1)
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stwu %r22, -4(%r1)
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stwu %r21, -4(%r1)
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stwu %r20, -4(%r1)
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stwu %r19, -4(%r1)
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stwu %r18, -4(%r1)
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stwu %r17, -4(%r1)
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stwu %r16, -4(%r1)
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stwu %r15, -4(%r1)
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stwu %r14, -4(%r1)
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stwu %r13, -4(%r1)
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stwu %r2, -4(%r1)
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// CR and LR
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mfcr %r0
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stwu %r0, -4(%r1)
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mflr %r0
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stwu %r0, -4(%r1)
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// save fp ?
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//move.w %sr,-(%sp)
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movem.l %d0-%d7/%a0-%a7,-(%sp)
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fpmovem %fp0-%fp7,-(%sp)
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fpsave -(%sp)
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fprestore (%sp)+
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fpmovem (%sp)+,%fp0-%fp7
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movem.l (%sp)+,%d0-%d7/%a0-%a7
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//move.w (%sp)+,%sr
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// save the old stack pointer
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stwu %r1, 0(%r3)
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