From 9c685d5b6ca1686f944fb239ec89511f24801d44 Mon Sep 17 00:00:00 2001 From: Miquel Sabaté Solà Date: Sun, 6 Sep 2026 21:42:34 +0200 Subject: vnf: also set the carry on a zero compare MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add also a test to further check corner cases on compare instructions. Signed-off-by: Miquel Sabaté Solà --- tests/runrom/cmp.s | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 tests/runrom/cmp.s (limited to 'tests/runrom') diff --git a/tests/runrom/cmp.s b/tests/runrom/cmp.s new file mode 100644 index 0000000..29deda3 --- /dev/null +++ b/tests/runrom/cmp.s @@ -0,0 +1,37 @@ +.segment "HEADER" + .byte 'N', 'E', 'S', $1A + .byte $02, $01 + .byte $00 + .byte $00 + +.segment "CHARS" +.byte 0 + +.segment "VECTORS" + .addr reset, reset, reset + +.segment "CODE" +;; asan:stack full + +zp_mem = $00 + +.proc reset + lda #0 + sta zp_mem + + cmp zp_mem + + inc zp_mem + cmp zp_mem + + lda #2 + cmp zp_mem + + lda #1 + cmp zp_mem + + lda #$FF + cmp zp_mem + + rts +.endproc -- cgit v1.2.3