tinygo-org/tinygo
1
0
Fork 0
mirror of https://github.com/tinygo-org/tinygo.git synced 2026-08-19 12:04:03 +00:00
Code Issues Packages Projects Releases 6 Wiki Activity

targets/gba: implement interrupt handler

Browse Source 
Thanks to Kyle Lemons for the inspiration and original design. The
implementation in this commit is very different however, building on top
of the software vectoring needed in RISC-V. The result is a flexible
interrupt handler that does not take up any RAM for configuration.
This commit is contained in:
Ayke van Laethem
2020-01-06 11:50:41 +01:00
committed by Ron Evans
parent f14127be76
commit 8687f3f8f4
5 changed files with 77 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files
targets/gameboy-advance.ld
+6 -3
View File
@@ -1,10 +1,13 @@
OUTPUT_ARCH(arm)
ENTRY(_start)
/* Note: iwram is reduced by 96 bytes because the last part of that RAM
* (starting at 0x03007FA0) is used for interrupt handling.
*/
MEMORY {
ewram : ORIGIN = 0x02000000, LENGTH = 256K /* on-board work RAM (2 wait states) */
iwram : ORIGIN = 0x03000000, LENGTH = 32K /* in-chip work RAM (faster) */
rom : ORIGIN = 0x08000000, LENGTH = 32M /* flash ROM */
ewram : ORIGIN = 0x02000000, LENGTH = 256K /* on-board work RAM (2 wait states) */
iwram : ORIGIN = 0x03000000, LENGTH = 32K-96 /* in-chip work RAM (faster) */
rom : ORIGIN = 0x08000000, LENGTH = 32M /* flash ROM */
}
__stack_size_irq = 1K;