Matthew Pomes
cd3de5e361
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Cargo Build & Test / Rust project - latest (stable) (push) Failing after 10s
47 lines
625 B
ArmAsm
47 lines
625 B
ArmAsm
; Verifies that reset doesn't alter any RAM.
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.include "testing.s"
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zp_res COUNT
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reset:
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sei
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cld
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ldx #$FF
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txs
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; Init PPU
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bit PPUSTATUS
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vwait1:
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bit PPUSTATUS
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bpl vwait1
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vwait2:
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bit PPUSTATUS
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bpl vwait2
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lda #$00
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sta PPUCTRL ; NMI off, PPU slave, Small sprites, 0 addresses
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lda #$3F
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sta PPUADDR
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lda #$03
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sta PPUADDR ; Load $3F03
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lda #$16
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sta PPUDATA ; Load $16 into palette 0, color 0
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lda #$0A
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sta PPUMASK; No EM, only background rendering, normal color
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lda #$80
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sta PPUCTRL ; NMI on, PPU slave, Small sprites, 0 addresses
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loop:
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jmp loop
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nmi:
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lda COUNT
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bne exit
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inc COUNT
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rti
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exit:
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stp
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irq:
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stp
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