39 lines
974 B
PHP
39 lines
974 B
PHP
macro EnableInt() {
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// careful not to touch unrelated flags here
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mfc0 t0, CP0_Status
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addiu at, r0, CP0_STATUS_IE
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or t0, at
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mtc0 t0, CP0_Status
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}
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macro DisableInt() {
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// careful not to touch unrelated flags here
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mfc0 t0, CP0_Status
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addiu at, r0, ~CP0_STATUS_IE
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and t0, at
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mtc0 t0, CP0_Status
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}
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macro SetIntMask() {
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lli t0, MI_INTR_MASK_ALL_SET
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lui a0, MI_BASE
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sw t0, MI_INTR_MASK(a0)
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// careful not to touch unrelated flags here
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mfc0 t1, CP0_Status
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lli t0, CP0_STATUS_IM_ALL
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or t1, t0
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mtc0 t1, CP0_Status
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}
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macro ClearIntMask() {
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lli t0, MI_INTR_MASK_ALL_CLR
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lui a0, MI_BASE
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sw t0, MI_INTR_MASK(a0)
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// careful not to touch unrelated flags here
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mfc0 t1, CP0_Status
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lli t0, CP0_STATUS_IM_ALL
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nor t0, r0 // invert the mask (including upper halfword)
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and t1, t0
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mtc0 t1, CP0_Status
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}
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