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| author | Flavian Kaufmann <flavian@flaviankaufmann.ch> | 2024-05-23 20:51:28 +0200 |
|---|---|---|
| committer | Flavian Kaufmann <flavian@flaviankaufmann.ch> | 2024-05-23 20:51:28 +0200 |
| commit | a515876002bef28d11e79ee9f74baa34790d86ce (patch) | |
| tree | 919a124b96cb08561e9eb9b2623ed5d0e1efed86 /prog/src | |
| parent | eb163582941af4b3fac8daf00665e1b704fd7c23 (diff) | |
| download | riscv_cpu-a515876002bef28d11e79ee9f74baa34790d86ce.tar.gz riscv_cpu-a515876002bef28d11e79ee9f74baa34790d86ce.zip | |
support for lb, lh, lbu, lhu, sb, sh
Diffstat (limited to 'prog/src')
| -rw-r--r-- | prog/src/startup.c | 6 | ||||
| -rw-r--r-- | prog/src/test_prog.s | 9 |
2 files changed, 12 insertions, 3 deletions
diff --git a/prog/src/startup.c b/prog/src/startup.c index 2ed3253..b587a95 100644 --- a/prog/src/startup.c +++ b/prog/src/startup.c @@ -5,15 +5,15 @@ extern unsigned int _sbss; // start of .bss section extern unsigned int _ebss; // end of .bss section extern unsigned int _estack; // end of .stack section (stack top) -void main(void); // main function declaration +//void main(void); // main function declaration -// extern void test_prog(void); +extern void test_prog(void); void _start(void) __attribute__((section(".text.startup"), naked)); // entry point, cpu starts executing from here void _start(void) { - // test_prog(); + //test_prog(); unsigned int *src, *dst; diff --git a/prog/src/test_prog.s b/prog/src/test_prog.s index caa6d8c..675a2b8 100644 --- a/prog/src/test_prog.s +++ b/prog/src/test_prog.s @@ -2,6 +2,15 @@ .globl test_prog test_prog: + + la t0, 0x00100000 + li t1, 0x00ff0000 + + sw t1, 0(t0) + la t0, 0x00100002 + lb t2, 0(t0) + + li t0, 0xFFFFFFFF li t1, 0x33333333 li t2, 0x88888888 |