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DEVICE ZXSPECTRUMNEXT
; check default page mapping 14, 15, 10, 11, 4, 5, 0, 1 (and ORG 0) - write markers
DB "EE" : ORG 0x2000 : DB "FF" : ORG 0x4000 : DB "AA" : ORG 0x6000 : DB "BB"
ORG 0x8000 : DB "44" : ORG 0xA000 : DB "55" : ORG 0xC000 : DB "00" : ORG 0xE000 : DB "11"
; verify defaut is slot 7
PAGE 2 : ASSERT {0xE000} == 0 : ORG 0xE000 : DB "22"
PAGE 3 : ASSERT {0xE000} == 0 : ORG 0xE000 : DB "33"
; verify there are 8 slots and 224 pages
SLOT 8 ; error
PAGE 224 ; error
; do few more verifications with other slots, reading previously modified pages
SLOT 1 : PAGE 0 : ASSERT {0x2000} == "00" : SLOT 2 : PAGE 1 : ASSERT {0x4000} == "11"
SLOT 1 : PAGE 2 : ASSERT {0x2000} == "22" : SLOT 2 : PAGE 3 : ASSERT {0x4000} == "33"
SLOT 1 : PAGE 4 : ASSERT {0x2000} == "44" : SLOT 2 : PAGE 5 : ASSERT {0x4000} == "55"
SLOT 1 : PAGE 10 : ASSERT {0x2000} == "AA" : SLOT 2 : PAGE 11 : ASSERT {0x4000} == "BB"
SLOT 1 : PAGE 14 : ASSERT {0x2000} == "EE" : SLOT 2 : PAGE 15 : ASSERT {0x4000} == "FF"
; check the Z80N instructions are enabled by the device selection
nextreg $07,2
PAGE -1 ; error