Implemented basic register allocation.

Mainly handles 'virtual' registers at the moment (eg current and last PC values, segment override status, etc).
2018-06-23 19:04:36 +01:00 · 2018-06-23 19:04:36 +01:00 · ee3f9210dc
commit ee3f9210dc
parent 03fe25d818
23 changed files with 776 additions and 76 deletions
--- a/src/codegen_backend_arm_defs.h
+++ b/src/codegen_backend_arm_defs.h
@ -42,3 +42,5 @@

 #define REG_MASK_LOCAL (REG_MASK_R4 | REG_MASK_R5 | REG_MASK_R6 | REG_MASK_R7 | \
 			REG_MASK_R8 | REG_MASK_R9 | REG_MASK_R10 | REG_MASK_R11)
+
+#define CODEGEN_HOST_REGS 3