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| author | kx <kx@radix-linux.su> | 2026-10-09 18:00:15 +0300 |
|---|---|---|
| committer | kx <kx@radix-linux.su> | 2026-10-09 18:00:15 +0300 |
| commit | 065da3509019b15dd0e678072e6be629e5330bef (patch) | |
| tree | 69c934c9e786ac048b4fbe8f4c4c5571661521f4 /tests/fixtures/stack.s | |
| parent | d130fe27fa753be02ed76fd9b277aa3c3d928eb9 (diff) | |
| download | libmcpu-0.4.0.tar.xz | |
Version 0.4.00.4.0
Diffstat (limited to 'tests/fixtures/stack.s')
| -rw-r--r-- | tests/fixtures/stack.s | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/tests/fixtures/stack.s b/tests/fixtures/stack.s new file mode 100644 index 0000000..9b45785 --- /dev/null +++ b/tests/fixtures/stack.s @@ -0,0 +1,32 @@ +; STACK instruction example. +; +; Build/run from examples/: +; ../utils/mcpu-as -o stack.o stack.s +; ../utils/mcpu-ld --stack-size=128 -o stack stack.o +; ../utils/mcpu-run --int-reg=r64@0x00028 stack +; +; Expected output: 22 +; +.text +_start_life: + LDI r64@0x00000, 11 + LDI r64@0x00008, 22 + + ; STACK grows downward. cpu-run initializes SP to stack_size. + PUSH r64@0x00000 + PUSH r64@0x00008 + + ; Current stack top contains 22, SP+8 contains 11. + LDSP r64@0x00010, 8 + STSP 0, r64@0x00000 + + POP r64@0x00018 + POP r64@0x00020 + + ; Reserve a 16-byte local frame without automatic padding. + ADJSP -16 + STSP 0, r64@0x00008 + LDSP r64@0x00028, 0 + ADJSP 16 + + HALT |