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annotate arch/progint.S @ 132:abf1f35f5935

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Very simple program interrupt handler, added broken program to test
author Jonathan Pevarnek <pevarnj@gmail.com>
date Sun, 11 Sep 2011 23:10:18 -0400
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children d1e835a25f28
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132
abf1f35f5935 Very simple program interrupt handler, added broken program to test
Jonathan Pevarnek <pevarnj@gmail.com>
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1 #include "progint.h"
abf1f35f5935 Very simple program interrupt handler, added broken program to test
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2
abf1f35f5935 Very simple program interrupt handler, added broken program to test
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3 .text
abf1f35f5935 Very simple program interrupt handler, added broken program to test
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4 .align 4
abf1f35f5935 Very simple program interrupt handler, added broken program to test
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5 .globl PROGINT
abf1f35f5935 Very simple program interrupt handler, added broken program to test
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6 .type PROGINT, @function
abf1f35f5935 Very simple program interrupt handler, added broken program to test
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7 PROGINT:
abf1f35f5935 Very simple program interrupt handler, added broken program to test
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8 stmg %r0,%r15,PROGINT_REG_LOC #save current registers
abf1f35f5935 Very simple program interrupt handler, added broken program to test
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9
abf1f35f5935 Very simple program interrupt handler, added broken program to test
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10 # llilf %r15,PROGINT_STACK
abf1f35f5935 Very simple program interrupt handler, added broken program to test
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11 lhi %r15,0x30
abf1f35f5935 Very simple program interrupt handler, added broken program to test
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12 sla %r15,16(%r0)
abf1f35f5935 Very simple program interrupt handler, added broken program to test
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13
abf1f35f5935 Very simple program interrupt handler, added broken program to test
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14 larl %r14,prog_int_handler
abf1f35f5935 Very simple program interrupt handler, added broken program to test
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15 basr %r14,%r14 #so, I think this is just copying the psw to the stack, right?
abf1f35f5935 Very simple program interrupt handler, added broken program to test
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16
abf1f35f5935 Very simple program interrupt handler, added broken program to test
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17 #so, I do not know what any of the other stuff below this did in the SVCINT function...