diff options
Diffstat (limited to 'opengl/libagl/matrix.h')
| -rw-r--r-- | opengl/libagl/matrix.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/opengl/libagl/matrix.h b/opengl/libagl/matrix.h index c9a38a9..5bd717a 100644 --- a/opengl/libagl/matrix.h +++ b/opengl/libagl/matrix.h @@ -74,6 +74,30 @@ GLfixed vsquare3(GLfixed a, GLfixed b, GLfixed c) ); return r; +#elif defined(__mips__) + + GLfixed res; + int32_t t1,t2,t3; + asm( + "mult %[a], %[a] \r\n" + "li %[res],0x8000 \r\n" + "madd %[b],%[b] \r\n" + "move %[t3],$zero \r\n" + "madd %[c],%[c] \r\n" + "mflo %[t1]\r\n" + "mfhi %[t2]\r\n" + "addu %[t1],%[res],%[t1]\r\n" /*add 0x8000*/ + "sltu %[t3],%[t1],%[res]\r\n" + "addu %[t2],%[t2],%[t3]\r\n" + "srl %[res],%[t1],16\r\n" + "sll %[t2],%[t2],16\r\n" + "or %[res],%[res],%[t2]\r\n" + : [res]"=&r"(res),[t1]"=&r"(t1),[t2]"=&r"(t2),[t3]"=&r"(t3) + : [a] "r" (a),[b] "r" (b),[c] "r" (c) + : "%hi","%lo" + ); + return res; + #else return (( int64_t(a)*a + @@ -136,6 +160,26 @@ static inline GLfixed mla3a( GLfixed a0, GLfixed b0, ); return r; +#elif defined(__mips__) + + GLfixed res; + int32_t t1,t2; + asm( + "mult %[a0],%[b0] \r\n" + "madd %[a1],%[b1] \r\n" + "madd %[a2],%[b2] \r\n" + "mflo %[t2]\r\n" + "mfhi %[t1]\r\n" + "srl %[t2],%[t2],16\r\n" + "sll %[t1],%[t1],16\r\n" + "or %[t2],%[t2],%[t1]\r\n" + "addu %[res],%[t2],%[c]" + : [res]"=&r"(res),[t1]"=&r"(t1),[t2]"=&r"(t2) + : [a0] "r" (a0),[b0] "r" (b0),[a1] "r" (a1),[b1] "r" (b1),[a2] "r" (a2),[b2] "r" (b2),[c] "r" (c) + : "%hi","%lo" + ); + return res; + #else return (( int64_t(a0)*b0 + |