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size-optimized cartridge check

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FeralChild64 committed 2019-09-11 21:50:48 +02:00
1 parent 13b7172ed5
commit 021c9b3189
3 files changed
+8 -9
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c64/kernal/reset_entry.s
+3 -2
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@@ -3,11 +3,12 @@
reset_entry:
// The GPL program at https://github.com/Klaus2m5/6502_65C02_functional_tests/blob/master/6502_functional_test.a65
// uses the following initial reset sequence
// affirmed by c64 PRG p269
cld
ldx #$ff
ldx #$FF
txs
sei
@@ -18,7 +19,7 @@ reset_entry:
// C64 PRG p269
jsr cartridge_check
bcc !+
bne !+
jmp (ICART_COLD_START)
!:
// Initialising IO is obviously required. Also indicated by c64 prg p269.