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* Please, notify me, if you make any changes to this file *
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* Please, notify me, if you make any changes to this file *
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* *
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* *
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* Adapted for the T48 uController project, 2004 by Arnim Laeuger *
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* Adapted for the T48 uController project, 2004 by Arnim Laeuger *
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* See http://www.opencores.org/projects.cgi/web/t48/overview *
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* See http://www.opencores.org/projects.cgi/web/t48/overview *
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* *
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* *
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* $Id: i8039.c,v 1.5 2004-05-01 17:20:42 arniml Exp $
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* $Id: i8039.c,v 1.6 2004-07-03 14:38:11 arniml Exp $
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* *
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* *
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* **** Change Log **** *
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* **** Change Log **** *
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* *
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* *
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* TLP (19-Jun-2001) *
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* TLP (19-Jun-2001) *
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* - Changed Ports 1 and 2 to quasi bidirectional output latched ports *
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* - Changed Ports 1 and 2 to quasi bidirectional output latched ports *
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R.PSW = (R.PSW & 0x0f) | (i & 0xf0); /* Stack is already changed by pull */
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R.PSW = (R.PSW & 0x0f) | (i & 0xf0); /* Stack is already changed by pull */
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regPTR = ((M_By) ? 24 : 0);
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regPTR = ((M_By) ? 24 : 0);
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R.irq_executing = I8039_NO_INT;
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R.irq_executing = I8039_NO_INT;
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R.A11 = R.A11ff;
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/* Take an interrupt if a request is still being made */
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/* Take an interrupt if a request is still being made */
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if (R.irq_state == I8039_EXTERNAL_INT) {
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if (R.irq_state == I8039_EXTERNAL_INT) {
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R.irq_extra_cycles += Ext_IRQ(); /* Service External IRQ */
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R.irq_extra_cycles += Ext_IRQ(); /* Service External IRQ */
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}
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}
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else if (R.pending_irq == I8039_TIMCNT_INT) {
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else if (R.pending_irq == I8039_TIMCNT_INT) {
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