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added first CPU specific optimizations

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FeralChild64 committed 2019-09-24 17:24:32 +02:00
1 parent 5b2c28b281
commit 55e2512fe2
12 files changed
+198 -7
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c64/kernal/interrupts/fe47.default_nmi_handler.s
+5
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@@ -6,10 +6,15 @@ default_nmi_handler:
// Save registers, sequence according to Compute's Mapping the Commodore 64, page 73
pha
#if CONFIG_CPU_MOS_6502
txa
pha
tya
pha
#else
phx
phy
#endif
// XXX: RS-232 support is not implemented