Mercurial > repos > blastem
view test_arm.c @ 1925:039553703c20
Don't apply address and cd register changes to the 'live' registers until pending flag is cleared, but do preserve the upper address bits in the latch. Fixes regression in Overdrive 2 while preserving fix to Mona in 344 bytes
author | Michael Pavone <pavone@retrodev.com> |
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date | Mon, 13 Apr 2020 20:43:25 -0700 |
parents | 474270dbff15 |
children |
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#include <stdio.h> #include "gen_arm.h" typedef int32_t (*fib_fun)(int32_t); int main(int arc, char **argv) { code_info code; init_code_info(&code); uint32_t *fib = code.cur; subi(&code, r0, r0, 2, SET_COND); movi_cc(&code, r0, 1, NO_COND, CC_LT); bx_cc(&code, lr, CC_LT); pushm(&code, LR | R4); mov(&code, r4, r0, NO_COND); bl(&code, fib); mov(&code, r1, r0, NO_COND); addi(&code, r0, r4, 1, NO_COND); mov(&code, r4, r1, NO_COND); bl(&code, fib); add(&code, r0, r4, r0, NO_COND); popm(&code, LR | R4); bx(&code, lr); fib_fun fibc = (fib_fun)fib; printf("fib(10): %d\n", fibc(10)); return 0; }